{"artifacts":{"doi:10.1016/j.calphad.2005.08.006/p11/text-25":{"artifact":"text_passage","label":"page 11, passage 25","page":11},"doi:10.1016/j.calphad.2005.08.006/p12/tab-9":{"artifact":"table","caption":"Comparison between calculated and experimental values of invariant reactions in the Mg–Ca system","label":"9","page":12},"doi:10.1016/j.intermet.2007.10.010/p14/text-06":{"artifact":"text_passage","label":"page 14, passage 6","page":14},"doi:10.1016/j.intermet.2007.10.010/p15/text-04":{"artifact":"text_passage","label":"page 15, passage 4","page":15},"doi:10.1016/j.intermet.2007.10.010/p15/text-05":{"artifact":"text_passage","label":"page 15, passage 5","page":15},"doi:10.1016/j.jallcom.2005.10.033/p4/tab-1":{"artifact":"table","caption":"Calculated total energies and lattice constants of Ca and Mg allotropes by LSDA and GGA from WIEN2K and VASP","label":"1","page":4},"doi:10.1016/j.jallcom.2005.10.033/p5/tab-4":{"artifact":"table","caption":"Structure properties and enthalpies of formation of the three laves phases of Mg 2 Ca","label":"4","page":5},"doi:10.1016/j.jeurceramsoc.2018.06.015/p15/text-05":{"artifact":"text_passage","label":"page 15, passage 5","page":15},"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii":{"artifact":"table","caption":"– Comparison between calculated and experimental values of the invariant reactions in the Mg-Ca system","label":"II","page":5},"doi:10.1179/cmq.2005.44.4.523/p5/text-36":{"artifact":"text_passage","label":"page 5, passage 36","page":5},"sha256:a7cbade1719f2946/p4/tab-2":{"artifact":"table","caption":"Structure properties and enthalpy of formation for Ca–Mg–Sr ternary system in a variety of order structure type","label":"2","page":4},"sha256:aed634b0a5a85226/p4/tab-1":{"artifact":"table","caption":"Crystallographic data of solid phases occurring in the MgeSneCa system","label":"1","page":4},"sha256:aed634b0a5a85226/p5/tab-2":{"artifact":"table","caption":"Standard enthalpy of formation, D f H 298 , and absolute entropy, S 298 , of compounds","label":"2","page":5}},"cite_as":{"also_cite":["the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work)"],"bibtex":"@misc{orchid_literature_2026,\n  author    = {Arr{\\'o}yave, Raymundo and Saal, James and Shin, Dongwon},\n  title     = {{ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature}},\n  version   = {2026.10},\n  publisher = {Zenodo},\n  year      = {2026},\n  doi       = {10.5281/zenodo.23735569},\n  url       = {https://doi.org/10.5281/zenodo.23735569},\n  note      = {Version 1, machine-extracted}\n}","dataset":"literature","doi":"10.5281/zenodo.23735569","license":"CC-BY-4.0","part_of":{"bibtex":"@misc{orchid_data_2026,\n  author    = {Arr{\\'o}yave, Raymundo and Saal, James and Shin, Dongwon},\n  title     = {{ORCHID data: umbrella record of the ORCHID datasets}},\n  version   = {2026.10},\n  publisher = {Zenodo},\n  year      = {2026},\n  doi       = {10.5281/zenodo.23736065},\n  url       = {https://doi.org/10.5281/zenodo.23736065},\n  note      = {Version 1, machine-extracted}\n}","doi":"10.5281/zenodo.23736065","text":"R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23736065","title":"ORCHID data: umbrella record of the ORCHID datasets","url":"https://doi.org/10.5281/zenodo.23736065"},"release_tag":"v2026.10","status":"Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.","text":"R. Arróyave, J. Saal, D. Shin, ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735569","title":"ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature","url":"https://doi.org/10.5281/zenodo.23735569","version":"2026.10"},"contexts":{},"elements":["CA","MG"],"licence":"CC BY 4.0 (ORCHID data; quotes are short excerpts kept for verification, the publishers' copyright, not relicensed)","models":{"Ma1e4c1b9":{"catalog_entry":{"license":"CC BY 4.0","name":"CaMg-05Isl.tdb","source_url":"https://doi.org/10.1016/j.calphad.2025.102833","tier":"bundled"},"link_basis":"reporting_paper_own_model","model_doi":"10.1179/cmq.2005.44.4.523","reproduced_by_calculation":false,"tdb":"CaMg-05Isl.tdb","tdb_path":"databases/sgte-binary/CaMg-05Isl.tdb","tdb_sha256":"89c94b67c90207421c18567fc55afcbaa8d6cba7c78db9b994e8adb5baf1e9ae"}},"note":"records[].locator.ref -> artifacts; records[].model -> models (full records: orchid-literature.jsonl.gz)","papers":{"doi:10.1002/zaac.19110700126":{"authors":["N. Baar"],"citation":"N. Baar, Über die Legierungen des Molybdäns mit Nickel, Mangans mit Thallium und des Calciums mit Magnesium, Thallium, Blei, Kupfer und Silber, Z. Anorg. Chem. 70, 352-394 (1911).","container":"Z. Anorg. Chem.","doi":"10.1002/zaac.19110700126","doi_url":"https://doi.org/10.1002/zaac.19110700126","id":"doi:10.1002/zaac.19110700126","kind":"cited_work","metadata_source":"crossref","roles":["cited_source"],"source_kinds":["cited_work"],"title":"Über die Legierungen des Molybdäns mit Nickel, Mangans mit Thallium und des Calciums mit Magnesium, Thallium, Blei, Kupfer und Silber","year":1911},"doi:10.1002/zaac.19472550102":{"authors":["Wilhelm Klemm","Fritz Dinkelacker"],"citation":"Wilhelm Klemm, Fritz Dinkelacker, Über das Verhalten des Magnesiums zu Calcium, Strontium und Barium, Z. Anorg. Chem. 255, 2-12 (1947).","container":"Z. Anorg. Chem.","doi":"10.1002/zaac.19472550102","doi_url":"https://doi.org/10.1002/zaac.19472550102","id":"doi:10.1002/zaac.19472550102","kind":"cited_work","metadata_source":"crossref","roles":["cited_source"],"source_kinds":["cited_work"],"title":"Über das Verhalten des Magnesiums zu Calcium, Strontium und Barium","year":1947},"doi:10.1016/0001-6160(64)90056-2":{"authors":["R.C King","O.J Kleppa"],"citation":"R.C King, O.J Kleppa, A thermochemical study of some selected laves phases, Acta Metallurgica 12, 87-97 (1964).","container":"Acta Metallurgica","doi":"10.1016/0001-6160(64)90056-2","doi_url":"https://doi.org/10.1016/0001-6160(64)90056-2","id":"doi:10.1016/0001-6160(64)90056-2","kind":"cited_work","metadata_source":"crossref","roles":["cited_source"],"source_kinds":["cited_work"],"title":"A thermochemical study of some selected laves phases","year":1964},"doi:10.1016/0022-5088(64)90053-0":{"authors":["P. Chiotti","R.W. Curtis","P.F. Woerner"],"citation":"P. Chiotti, R.W. Curtis, P.F. Woerner, Metal hydride reactions, Journal of the Less Common Metals 7, 120-126 (1964).","container":"Journal of the Less Common Metals","doi":"10.1016/0022-5088(64)90053-0","doi_url":"https://doi.org/10.1016/0022-5088(64)90053-0","id":"doi:10.1016/0022-5088(64)90053-0","kind":"cited_work","metadata_source":"crossref","roles":["cited_source"],"source_kinds":["cited_work"],"title":"Metal hydride reactions","year":1964},"doi:10.1016/j.calphad.2005.08.006":{"authors":["F. Islam","M. Medraj"],"citation":"F. Islam, M. Medraj, The phase equilibria in the Mg–Ni–Ca system, Calphad 29, 289-302 (2005).","container":"Calphad","doi":"10.1016/j.calphad.2005.08.006","doi_url":"https://doi.org/10.1016/j.calphad.2005.08.006","id":"doi:10.1016/j.calphad.2005.08.006","kind":"corpus_paper","metadata_source":"crossref","pdf_sha256_prefix":"51880cbc280a32de","roles":["reporting_paper"],"source_kinds":["journal_article"],"title":"The phase equilibria in the Mg–Ni–Ca system","year":2005},"doi:10.1016/j.intermet.2007.10.010":{"authors":["A. Kozlov","M. Ohno","R. Arroyave","Z.K. Liu","R. Schmid-Fetzer"],"citation":"A. Kozlov, M. Ohno, R. Arroyave, Z.K. Liu, R. Schmid-Fetzer, Phase equilibria, thermodynamics and solidification microstructures of Mg–Sn–Ca alloys, Part 1: Experimental investigation and thermodynamic modeling of the ternary Mg–Sn–Ca system, Intermetallics 16, 299-315 (2008).","container":"Intermetallics","doi":"10.1016/j.intermet.2007.10.010","doi_url":"https://doi.org/10.1016/j.intermet.2007.10.010","id":"doi:10.1016/j.intermet.2007.10.010","kind":"corpus_paper","metadata_source":"crossref","pdf_sha256_prefix":"aed634b0a5a85226","roles":["reporting_paper"],"source_kinds":["journal_article"],"title":"Phase equilibria, thermodynamics and solidification microstructures of Mg–Sn–Ca alloys, Part 1: Experimental investigation and thermodynamic modeling of the ternary Mg–Sn–Ca system","year":2008},"doi:10.1016/j.jallcom.2005.09.076":{"authors":["Yu Zhong","Jorge O. Sofo","Alan A. Luo","Zi-Kui Liu"],"citation":"Yu Zhong, Jorge O. Sofo, Alan A. Luo, Zi-Kui Liu, Thermodynamics modeling of the Mg–Sr and Ca–Mg–Sr systems, Journal of Alloys and Compounds 421, 172-178 (2006).","container":"Journal of Alloys and Compounds","doi":"10.1016/j.jallcom.2005.09.076","doi_url":"https://doi.org/10.1016/j.jallcom.2005.09.076","id":"doi:10.1016/j.jallcom.2005.09.076","kind":"corpus_paper","metadata_source":"crossref","pdf_sha256_prefix":"a7cbade1719f2946","roles":["reporting_paper"],"source_kinds":["journal_article"],"title":"Thermodynamics modeling of the Mg–Sr and Ca–Mg–Sr systems","year":2006},"doi:10.1016/j.jallcom.2005.10.033":{"authors":["Yu Zhong","Koray Ozturk","Jorge O. Sofo","Zi-Kui Liu"],"citation":"Yu Zhong, Koray Ozturk, Jorge O. Sofo, Zi-Kui Liu, Contribution of first-principles energetics to the Ca–Mg thermodynamic modeling, Journal of Alloys and Compounds 420, 98-106 (2006).","container":"Journal of Alloys and Compounds","doi":"10.1016/j.jallcom.2005.10.033","doi_url":"https://doi.org/10.1016/j.jallcom.2005.10.033","id":"doi:10.1016/j.jallcom.2005.10.033","kind":"corpus_paper","metadata_source":"crossref","pdf_sha256_prefix":"029c6f101194fbf9","roles":["reporting_paper"],"source_kinds":["journal_article"],"title":"Contribution of first-principles energetics to the Ca–Mg thermodynamic modeling","year":2006},"doi:10.1016/j.jeurceramsoc.2018.06.015":{"authors":["Song-Mao Liang","Rainer Schmid-Fetzer"],"citation":"Song-Mao Liang, Rainer Schmid-Fetzer, Complete thermodynamic description of the Mg-Ca-O phase diagram including the Ca-O, Mg-O and CaO-MgO subsystems, Journal of the European Ceramic Society 38, 4768-4785 (2018).","container":"Journal of the European Ceramic Society","doi":"10.1016/j.jeurceramsoc.2018.06.015","doi_url":"https://doi.org/10.1016/j.jeurceramsoc.2018.06.015","id":"doi:10.1016/j.jeurceramsoc.2018.06.015","kind":"corpus_paper","metadata_source":"crossref","pdf_sha256_prefix":"a06ffc8557528ea6","roles":["cited_source","reporting_paper"],"source_kinds":["journal_article"],"title":"Complete thermodynamic description of the Mg-Ca-O phase diagram including the Ca-O, Mg-O and CaO-MgO subsystems","year":2018},"doi:10.1179/cmq.2005.44.4.523":{"authors":["F. ISLAM","M. MEDRAJ"],"citation":"F. ISLAM, M. MEDRAJ, THERMODYNAMIC MODELLING OF THE Mg-Al-Ca SYSTEM, Canadian Metallurgical Quarterly 44, 523-536 (2005).","container":"Canadian Metallurgical Quarterly","doi":"10.1179/cmq.2005.44.4.523","doi_url":"https://doi.org/10.1179/cmq.2005.44.4.523","id":"doi:10.1179/cmq.2005.44.4.523","kind":"corpus_paper","metadata_source":"crossref","pdf_sha256_prefix":"a73e5208e2ceb16d","roles":["reporting_paper"],"source_kinds":["journal_article"],"title":"THERMODYNAMIC MODELLING OF THE Mg-Al-Ca SYSTEM","year":2005},"doi:10.1524/zkri.1993.206.part-2.313":{"citation":"Crystal structure of calcium dimagnesium, CaMg<sub>2</sub>, Zeitschrift für Kristallographie - Crystalline Materials 206, 313-314 (1993).","container":"Zeitschrift für Kristallographie - Crystalline Materials","doi":"10.1524/zkri.1993.206.part-2.313","doi_url":"https://doi.org/10.1524/zkri.1993.206.part-2.313","id":"doi:10.1524/zkri.1993.206.part-2.313","kind":"cited_work","metadata_source":"crossref","roles":["cited_source"],"source_kinds":["cited_work"],"title":"Crystal structure of calcium dimagnesium, CaMg<sub>2</sub>","year":1993},"ref:b404eeca4d5a0cc0":{"citation":"H. Vosskühler, Z. Metallkd. 29 (1937) 236–237.","id":"ref:b404eeca4d5a0cc0","kind":"cited_work","metadata_source":"printed_reference","roles":["cited_source"],"source_kinds":["cited_work"],"year":1937},"ref:c82f2dbc7a5341cb":{"citation":"J.L. Haughton, J. Inst. Met. 61 (1937) 241–246.","id":"ref:c82f2dbc7a5341cb","kind":"cited_work","metadata_source":"printed_reference","roles":["cited_source"],"source_kinds":["cited_work"],"year":1937},"ref:e8dda5999af4d80d":{"citation":"R. Paris, Publ. Sci. et Tech Ministere Air 45 (1934) 39–41.","id":"ref:e8dda5999af4d80d","kind":"cited_work","metadata_source":"printed_reference","roles":["cited_source"],"source_kinds":["cited_work"],"year":1934},"unresolved:source:doi:10-1179-cmq-2005-44-4-523#10":{"citation":"reference [10] of doi:10-1179-cmq-2005-44-4-523 (no printed entry could be read)","id":"unresolved:source:doi:10-1179-cmq-2005-44-4-523#10","kind":"unresolved_citation","metadata_source":"printed_reference","roles":["cited_source"],"source_kinds":["unresolved_citation"]},"unresolved:source:doi:10-1179-cmq-2005-44-4-523#13":{"citation":"reference [13] of doi:10-1179-cmq-2005-44-4-523 (no printed entry could be read)","id":"unresolved:source:doi:10-1179-cmq-2005-44-4-523#13","kind":"unresolved_citation","metadata_source":"printed_reference","roles":["cited_source"],"source_kinds":["unresolved_citation"]},"unresolved:source:doi:10-1179-cmq-2005-44-4-523#14":{"citation":"reference [14] of doi:10-1179-cmq-2005-44-4-523 (no printed entry could be read)","id":"unresolved:source:doi:10-1179-cmq-2005-44-4-523#14","kind":"unresolved_citation","metadata_source":"printed_reference","roles":["cited_source"],"source_kinds":["unresolved_citation"]},"unresolved:source:doi:10-1179-cmq-2005-44-4-523#15":{"citation":"reference [15] of doi:10-1179-cmq-2005-44-4-523 (no printed entry could be read)","id":"unresolved:source:doi:10-1179-cmq-2005-44-4-523#15","kind":"unresolved_citation","metadata_source":"printed_reference","roles":["cited_source"],"source_kinds":["unresolved_citation"]}},"part":1,"parts":1,"records":[{"chemical_system":"CA-MG","conditions":{"kind":"not_applicable_own_calculation"},"corrections":[{"after":"ORC-S5ZXHAVDSF","before":null,"evidence":{"class":"composition","decision":"Same printed cell (same element block, phase, functional column, value) read twice; the earlier row of the complete r1-r27 reading is kept.","decision_file":"composition_t033.json","doi":"10.1016/j.jallcom.2005.10.033","kept_id":"ORC-S5ZXHAVDSF","pdf_page":4,"pdf_sha256":"029c6f101194fbf9443ede0974e6bb6328feb85bb7ada2dc3d67e5b860271110","printed":"","rationale":"Same printed cell as ORC-S5ZXHAVDSF; not an independent observation.","report_id":"ORCHID-TD-20261028-v1","table":"1","table_key":"t033"},"field":"duplicate_of","gate":"TD20261028","rule":"source_adjudicated_table_defect","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1","image_sha256":"279dd38425efe778c8a37decbee96d285e895e3ac82d4f3bc53d013c5777efdd","page":4,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"Ca fcc (A1) a=5.331","verdict":"confirmed"}}],"duplicate_of":"ORC-S5ZXHAVDSF","evidence_class":"dft","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"gate_failures":["duplicate_source_row","human_review_residual_concern"],"review_state":"extracted","specification_gaps":["table_defect_correction_requires_downstream_revalidation"],"state_fully_specified":false},"fold_lpo":1,"fold_lso":0,"gate_failures":[{"code":"duplicate_source_row","detail":"Same printed cell (same element block, phase, functional column, value) read twice; the earlier row of the complete r1-r27 reading is kept.","effect":"not_espei_ready","gate":"page","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1 (composition, t033)","image_sha256":"279dd38425efe778c8a37decbee96d285e895e3ac82d4f3bc53d013c5777efdd","page":4,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"Ca fcc (A1) a=5.331","verdict":"confirmed"}},{"code":"human_review_residual_concern","detail":"Duplicate of ORC-S5ZXHAVDSF (same printed cell); not independent evidence: exclude from fitting, counts and calibration.","effect":"not_espei_ready","gate":"TD20261028"}],"id":"ORC-MZLMLMSSNX","locator":{"ref":"doi:10.1016/j.jallcom.2005.10.033/p4/tab-1","row":29},"method":"first-principles WIEN2K LSDA","method_basis":"printed in the table row/column","observation_type":"structural_property","origin":{"basis":"this_work+label_first_principles","class":"computed","measured_in":"doi:10.1016/j.jallcom.2005.10.033","own_work_of_paper":true},"overall_composition":{"MG":0.0},"overall_composition_basis":"from_formula","paper":"doi:10.1016/j.jallcom.2005.10.033","paper_id":"doi:10.1016/j.jallcom.2005.10.033","phases":[{"label":"fcc (A1)","model_phase":"FCC_A1"}],"pid":"doi:10.1016/j.jallcom.2005.10.033/p4/tab-1/r29#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_A","property_group":"crystal structure","reader_agreement":"single_reader","reader_agreement_label":"unconfirmed (single reader)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","text_layer"],"record_kind":"general_table","source_system":"CA-MG","system":"CA-MG","temperature_K":2.0,"temperature_basis":"printed","temperature_printed":"2K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"reading_resolution","value":0.0005},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.05331,"sigma_method":{"basis":"prior","class":"dft","entry":"dft/priors/LATTICE_LENGTH","floor":0.01,"floor_unit":"relative (fraction of the value)","value":0.05331},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.0005},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_stored":"Å","value":5.331,"value_stored":5.331},{"chemical_system":"CA-MG","conditions":{"kind":"not_applicable_own_calculation"},"corrections":[{"after":"ORC-UK2QT6EINH","before":null,"evidence":{"class":"composition","decision":"Same printed cell (same element block, phase, functional column, value) read twice; the earlier row of the complete r1-r27 reading is kept.","decision_file":"composition_t033.json","doi":"10.1016/j.jallcom.2005.10.033","kept_id":"ORC-UK2QT6EINH","pdf_page":4,"pdf_sha256":"029c6f101194fbf9443ede0974e6bb6328feb85bb7ada2dc3d67e5b860271110","printed":"","rationale":"Same printed cell as ORC-UK2QT6EINH; not an independent observation.","report_id":"ORCHID-TD-20261028-v1","table":"1","table_key":"t033"},"field":"duplicate_of","gate":"TD20261028","rule":"source_adjudicated_table_defect","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1","image_sha256":"279dd38425efe778c8a37decbee96d285e895e3ac82d4f3bc53d013c5777efdd","page":4,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"Ca fcc (A1) a=5.545","verdict":"confirmed"}}],"duplicate_of":"ORC-UK2QT6EINH","evidence_class":"dft","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"gate_failures":["duplicate_source_row","human_review_residual_concern"],"review_state":"extracted","specification_gaps":["table_defect_correction_requires_downstream_revalidation"],"state_fully_specified":false},"fold_lpo":1,"fold_lso":0,"gate_failures":[{"code":"duplicate_source_row","detail":"Same printed cell (same element block, phase, functional column, value) read twice; the earlier row of the complete r1-r27 reading is kept.","effect":"not_espei_ready","gate":"page","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1 (composition, t033)","image_sha256":"279dd38425efe778c8a37decbee96d285e895e3ac82d4f3bc53d013c5777efdd","page":4,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"Ca fcc (A1) a=5.545","verdict":"confirmed"}},{"code":"human_review_residual_concern","detail":"Duplicate of ORC-UK2QT6EINH (same printed cell); not independent evidence: exclude from fitting, counts and calibration.","effect":"not_espei_ready","gate":"TD20261028"}],"id":"ORC-E7MK3JDHXY","locator":{"ref":"doi:10.1016/j.jallcom.2005.10.033/p4/tab-1","row":30},"method":"first-principles WIEN2K GGA","method_basis":"printed in the table row/column","observation_type":"structural_property","origin":{"basis":"this_work+label_first_principles","class":"computed","measured_in":"doi:10.1016/j.jallcom.2005.10.033","own_work_of_paper":true},"overall_composition":{"MG":0.0},"overall_composition_basis":"from_formula","paper":"doi:10.1016/j.jallcom.2005.10.033","paper_id":"doi:10.1016/j.jallcom.2005.10.033","phases":[{"label":"fcc (A1)","model_phase":"FCC_A1"}],"pid":"doi:10.1016/j.jallcom.2005.10.033/p4/tab-1/r30#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_A","property_group":"crystal structure","reader_agreement":"single_reader","reader_agreement_label":"unconfirmed (single reader)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","text_layer"],"record_kind":"general_table","source_system":"CA-MG","system":"CA-MG","temperature_K":2.0,"temperature_basis":"printed","temperature_printed":"2K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"reading_resolution","value":0.0005},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.05545,"sigma_method":{"basis":"prior","class":"dft","entry":"dft/priors/LATTICE_LENGTH","floor":0.01,"floor_unit":"relative (fraction of the value)","value":0.05545},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.0005},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_stored":"Å","value":5.545,"value_stored":5.545},{"chemical_system":"CA-MG","conditions":{"kind":"not_applicable_own_calculation"},"corrections":[{"after":"ORC-TE65RFLY3N","before":null,"evidence":{"class":"composition","decision":"Same printed cell (same element block, phase, functional column, value) read twice; the earlier row of the complete r1-r27 reading is kept.","decision_file":"composition_t033.json","doi":"10.1016/j.jallcom.2005.10.033","kept_id":"ORC-TE65RFLY3N","pdf_page":4,"pdf_sha256":"029c6f101194fbf9443ede0974e6bb6328feb85bb7ada2dc3d67e5b860271110","printed":"","rationale":"Same printed cell as ORC-TE65RFLY3N; not an independent observation.","report_id":"ORCHID-TD-20261028-v1","table":"1","table_key":"t033"},"field":"duplicate_of","gate":"TD20261028","rule":"source_adjudicated_table_defect","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1","image_sha256":"279dd38425efe778c8a37decbee96d285e895e3ac82d4f3bc53d013c5777efdd","page":4,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"Ca bcc (A2) a=4.211","verdict":"confirmed"}}],"duplicate_of":"ORC-TE65RFLY3N","evidence_class":"dft","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"gate_failures":["duplicate_source_row","human_review_residual_concern"],"review_state":"extracted","specification_gaps":["table_defect_correction_requires_downstream_revalidation"],"state_fully_specified":false},"fold_lpo":1,"fold_lso":0,"gate_failures":[{"code":"duplicate_source_row","detail":"Same printed cell (same element block, phase, functional column, value) read twice; the earlier row of the complete r1-r27 reading is kept.","effect":"not_espei_ready","gate":"page","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1 (composition, t033)","image_sha256":"279dd38425efe778c8a37decbee96d285e895e3ac82d4f3bc53d013c5777efdd","page":4,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"Ca bcc (A2) a=4.211","verdict":"confirmed"}},{"code":"human_review_residual_concern","detail":"Duplicate of ORC-TE65RFLY3N (same printed cell); not independent evidence: exclude from fitting, counts and calibration.","effect":"not_espei_ready","gate":"TD20261028"}],"id":"ORC-CLQDMWYFUM","locator":{"ref":"doi:10.1016/j.jallcom.2005.10.033/p4/tab-1","row":31},"method":"first-principles WIEN2K LSDA","method_basis":"printed in the table row/column","observation_type":"structural_property","origin":{"basis":"this_work+label_first_principles","class":"computed","measured_in":"doi:10.1016/j.jallcom.2005.10.033","own_work_of_paper":true},"overall_composition":{"MG":0.0},"overall_composition_basis":"from_formula","paper":"doi:10.1016/j.jallcom.2005.10.033","paper_id":"doi:10.1016/j.jallcom.2005.10.033","phases":[{"label":"bcc (A2)","model_phase":"BCC_A2"}],"pid":"doi:10.1016/j.jallcom.2005.10.033/p4/tab-1/r31#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_A","property_group":"crystal structure","reader_agreement":"single_reader","reader_agreement_label":"unconfirmed (single reader)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","text_layer"],"record_kind":"general_table","source_system":"CA-MG","system":"CA-MG","temperature_K":2.0,"temperature_basis":"printed","temperature_printed":"2K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"reading_resolution","value":0.0005},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.04211,"sigma_method":{"basis":"prior","class":"dft","entry":"dft/priors/LATTICE_LENGTH","floor":0.01,"floor_unit":"relative (fraction of the value)","value":0.04211},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.0005},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_stored":"Å","value":4.211,"value_stored":4.211},{"chemical_system":"CA-MG","conditions":{"kind":"not_applicable_own_calculation"},"corrections":[{"after":"ORC-NHDBXCBKX6","before":null,"evidence":{"class":"composition","decision":"Same printed cell (same element block, phase, functional column, value) read twice; the earlier row of the complete r1-r27 reading is kept.","decision_file":"composition_t033.json","doi":"10.1016/j.jallcom.2005.10.033","kept_id":"ORC-NHDBXCBKX6","pdf_page":4,"pdf_sha256":"029c6f101194fbf9443ede0974e6bb6328feb85bb7ada2dc3d67e5b860271110","printed":"","rationale":"Same printed cell as ORC-NHDBXCBKX6; not an independent observation.","report_id":"ORCHID-TD-20261028-v1","table":"1","table_key":"t033"},"field":"duplicate_of","gate":"TD20261028","rule":"source_adjudicated_table_defect","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1","image_sha256":"279dd38425efe778c8a37decbee96d285e895e3ac82d4f3bc53d013c5777efdd","page":4,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"Ca fcc (A1) a=5.344","verdict":"confirmed"}}],"duplicate_of":"ORC-NHDBXCBKX6","evidence_class":"dft","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"gate_failures":["duplicate_source_row","human_review_residual_concern"],"review_state":"extracted","specification_gaps":["table_defect_correction_requires_downstream_revalidation"],"state_fully_specified":false},"fold_lpo":1,"fold_lso":0,"gate_failures":[{"code":"duplicate_source_row","detail":"Same printed cell (same element block, phase, functional column, value) read twice; the earlier row of the complete r1-r27 reading is kept.","effect":"not_espei_ready","gate":"page","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1 (composition, t033)","image_sha256":"279dd38425efe778c8a37decbee96d285e895e3ac82d4f3bc53d013c5777efdd","page":4,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"Ca fcc (A1) a=5.344","verdict":"confirmed"}},{"code":"human_review_residual_concern","detail":"Duplicate of ORC-NHDBXCBKX6 (same printed cell); not independent evidence: exclude from fitting, counts and calibration.","effect":"not_espei_ready","gate":"TD20261028"}],"id":"ORC-LUKFYXILQI","locator":{"ref":"doi:10.1016/j.jallcom.2005.10.033/p4/tab-1","row":36},"method":"first-principles VASP LSDA","method_basis":"printed in the table row/column","observation_type":"structural_property","origin":{"basis":"this_work+label_first_principles","class":"computed","measured_in":"doi:10.1016/j.jallcom.2005.10.033","own_work_of_paper":true},"overall_composition":{"MG":0.0},"overall_composition_basis":"from_formula","paper":"doi:10.1016/j.jallcom.2005.10.033","paper_id":"doi:10.1016/j.jallcom.2005.10.033","phases":[{"label":"fcc (A1)","model_phase":"FCC_A1"}],"pid":"doi:10.1016/j.jallcom.2005.10.033/p4/tab-1/r36#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_A","property_group":"crystal structure","reader_agreement":"single_reader","reader_agreement_label":"unconfirmed (single reader)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","text_layer"],"record_kind":"general_table","source_system":"CA-MG","system":"CA-MG","temperature_K":2.0,"temperature_basis":"printed","temperature_printed":"2K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"reading_resolution","value":0.0005},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.05344,"sigma_method":{"basis":"prior","class":"dft","entry":"dft/priors/LATTICE_LENGTH","floor":0.01,"floor_unit":"relative (fraction of the value)","value":0.05344},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.0005},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_stored":"Å","value":5.344,"value_stored":5.344},{"chemical_system":"CA-MG","conditions":{"kind":"not_applicable_own_calculation"},"corrections":[{"after":"ORC-PF6YVSJU3R","before":null,"evidence":{"class":"composition","decision":"Same printed cell (same element block, phase, functional column, value) read twice; the earlier row of the complete r1-r27 reading is kept.","decision_file":"composition_t033.json","doi":"10.1016/j.jallcom.2005.10.033","kept_id":"ORC-PF6YVSJU3R","pdf_page":4,"pdf_sha256":"029c6f101194fbf9443ede0974e6bb6328feb85bb7ada2dc3d67e5b860271110","printed":"","rationale":"Same printed cell as ORC-PF6YVSJU3R; not an independent observation.","report_id":"ORCHID-TD-20261028-v1","table":"1","table_key":"t033"},"field":"duplicate_of","gate":"TD20261028","rule":"source_adjudicated_table_defect","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1","image_sha256":"279dd38425efe778c8a37decbee96d285e895e3ac82d4f3bc53d013c5777efdd","page":4,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"Ca fcc (A1) a=5.486","verdict":"confirmed"}}],"duplicate_of":"ORC-PF6YVSJU3R","evidence_class":"dft","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"gate_failures":["duplicate_source_row","human_review_residual_concern"],"review_state":"extracted","specification_gaps":["table_defect_correction_requires_downstream_revalidation"],"state_fully_specified":false},"fold_lpo":1,"fold_lso":0,"gate_failures":[{"code":"duplicate_source_row","detail":"Same printed cell (same element block, phase, functional column, value) read twice; the earlier row of the complete r1-r27 reading is kept.","effect":"not_espei_ready","gate":"page","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1 (composition, t033)","image_sha256":"279dd38425efe778c8a37decbee96d285e895e3ac82d4f3bc53d013c5777efdd","page":4,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"Ca fcc (A1) a=5.486","verdict":"confirmed"}},{"code":"human_review_residual_concern","detail":"Duplicate of ORC-PF6YVSJU3R (same printed cell); not independent evidence: exclude from fitting, counts and calibration.","effect":"not_espei_ready","gate":"TD20261028"}],"id":"ORC-OHT66OJTI2","locator":{"ref":"doi:10.1016/j.jallcom.2005.10.033/p4/tab-1","row":37},"method":"first-principles VASP GGA","method_basis":"printed in the table row/column","observation_type":"structural_property","origin":{"basis":"this_work+label_first_principles","class":"computed","measured_in":"doi:10.1016/j.jallcom.2005.10.033","own_work_of_paper":true},"overall_composition":{"MG":0.0},"overall_composition_basis":"from_formula","paper":"doi:10.1016/j.jallcom.2005.10.033","paper_id":"doi:10.1016/j.jallcom.2005.10.033","phases":[{"label":"fcc (A1)","model_phase":"FCC_A1"}],"pid":"doi:10.1016/j.jallcom.2005.10.033/p4/tab-1/r37#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_A","property_group":"crystal structure","reader_agreement":"single_reader","reader_agreement_label":"unconfirmed (single reader)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","text_layer"],"record_kind":"general_table","source_system":"CA-MG","system":"CA-MG","temperature_K":2.0,"temperature_basis":"printed","temperature_printed":"2K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"reading_resolution","value":0.0005},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.05486,"sigma_method":{"basis":"prior","class":"dft","entry":"dft/priors/LATTICE_LENGTH","floor":0.01,"floor_unit":"relative (fraction of the value)","value":0.05486},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.0005},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_stored":"Å","value":5.486,"value_stored":5.486},{"chemical_system":"CA-MG","conditions":{"kind":"not_applicable_own_calculation"},"corrections":[{"after":"ORC-OUJTAKRIDP","before":null,"evidence":{"class":"composition","decision":"Same printed cell (same element block, phase, functional column, value) read twice; the earlier row of the complete r1-r27 reading is kept.","decision_file":"composition_t033.json","doi":"10.1016/j.jallcom.2005.10.033","kept_id":"ORC-OUJTAKRIDP","pdf_page":4,"pdf_sha256":"029c6f101194fbf9443ede0974e6bb6328feb85bb7ada2dc3d67e5b860271110","printed":"","rationale":"Same printed cell as ORC-OUJTAKRIDP; not an independent observation.","report_id":"ORCHID-TD-20261028-v1","table":"1","table_key":"t033"},"field":"duplicate_of","gate":"TD20261028","rule":"source_adjudicated_table_defect","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1","image_sha256":"279dd38425efe778c8a37decbee96d285e895e3ac82d4f3bc53d013c5777efdd","page":4,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"Ca bcc (A2) a=4.218","verdict":"confirmed"}}],"duplicate_of":"ORC-OUJTAKRIDP","evidence_class":"dft","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"gate_failures":["duplicate_source_row","human_review_residual_concern"],"review_state":"extracted","specification_gaps":["table_defect_correction_requires_downstream_revalidation"],"state_fully_specified":false},"fold_lpo":1,"fold_lso":0,"gate_failures":[{"code":"duplicate_source_row","detail":"Same printed cell (same element block, phase, functional column, value) read twice; the earlier row of the complete r1-r27 reading is kept.","effect":"not_espei_ready","gate":"page","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1 (composition, t033)","image_sha256":"279dd38425efe778c8a37decbee96d285e895e3ac82d4f3bc53d013c5777efdd","page":4,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"Ca bcc (A2) a=4.218","verdict":"confirmed"}},{"code":"human_review_residual_concern","detail":"Duplicate of ORC-OUJTAKRIDP (same printed cell); not independent evidence: exclude from fitting, counts and calibration.","effect":"not_espei_ready","gate":"TD20261028"}],"id":"ORC-IYYKLL4WRL","locator":{"ref":"doi:10.1016/j.jallcom.2005.10.033/p4/tab-1","row":38},"method":"first-principles VASP LSDA","method_basis":"printed in the table row/column","observation_type":"structural_property","origin":{"basis":"this_work+label_first_principles","class":"computed","measured_in":"doi:10.1016/j.jallcom.2005.10.033","own_work_of_paper":true},"overall_composition":{"MG":0.0},"overall_composition_basis":"from_formula","paper":"doi:10.1016/j.jallcom.2005.10.033","paper_id":"doi:10.1016/j.jallcom.2005.10.033","phases":[{"label":"bcc (A2)","model_phase":"BCC_A2"}],"pid":"doi:10.1016/j.jallcom.2005.10.033/p4/tab-1/r38#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_A","property_group":"crystal structure","reader_agreement":"single_reader","reader_agreement_label":"unconfirmed (single reader)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","text_layer"],"record_kind":"general_table","source_system":"CA-MG","system":"CA-MG","temperature_K":2.0,"temperature_basis":"printed","temperature_printed":"2K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"reading_resolution","value":0.0005},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.04218,"sigma_method":{"basis":"prior","class":"dft","entry":"dft/priors/LATTICE_LENGTH","floor":0.01,"floor_unit":"relative (fraction of the value)","value":0.04218},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.0005},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_stored":"Å","value":4.218,"value_stored":4.218},{"chemical_system":"CA-MG","conditions":{"kind":"not_applicable_own_calculation"},"corrections":[{"after":"ORC-67SGNAPXPC","before":null,"evidence":{"class":"composition","decision":"Same printed cell (same element block, phase, functional column, value) read twice; the earlier row of the complete r1-r27 reading is kept.","decision_file":"composition_t033.json","doi":"10.1016/j.jallcom.2005.10.033","kept_id":"ORC-67SGNAPXPC","pdf_page":4,"pdf_sha256":"029c6f101194fbf9443ede0974e6bb6328feb85bb7ada2dc3d67e5b860271110","printed":"","rationale":"Same printed cell as ORC-67SGNAPXPC; not an independent observation.","report_id":"ORCHID-TD-20261028-v1","table":"1","table_key":"t033"},"field":"duplicate_of","gate":"TD20261028","rule":"source_adjudicated_table_defect","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1","image_sha256":"279dd38425efe778c8a37decbee96d285e895e3ac82d4f3bc53d013c5777efdd","page":4,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"Ca bcc (A2) a=4.345","verdict":"confirmed"}}],"duplicate_of":"ORC-67SGNAPXPC","evidence_class":"dft","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"gate_failures":["duplicate_source_row","human_review_residual_concern"],"review_state":"extracted","specification_gaps":["table_defect_correction_requires_downstream_revalidation"],"state_fully_specified":false},"fold_lpo":1,"fold_lso":0,"gate_failures":[{"code":"duplicate_source_row","detail":"Same printed cell (same element block, phase, functional column, value) read twice; the earlier row of the complete r1-r27 reading is kept.","effect":"not_espei_ready","gate":"page","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1 (composition, t033)","image_sha256":"279dd38425efe778c8a37decbee96d285e895e3ac82d4f3bc53d013c5777efdd","page":4,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"Ca bcc (A2) a=4.345","verdict":"confirmed"}},{"code":"human_review_residual_concern","detail":"Duplicate of ORC-67SGNAPXPC (same printed cell); not independent evidence: exclude from fitting, counts and calibration.","effect":"not_espei_ready","gate":"TD20261028"}],"id":"ORC-MW2KUZ3QYH","locator":{"ref":"doi:10.1016/j.jallcom.2005.10.033/p4/tab-1","row":39},"method":"first-principles VASP GGA","method_basis":"printed in the table row/column","observation_type":"structural_property","origin":{"basis":"this_work+label_first_principles","class":"computed","measured_in":"doi:10.1016/j.jallcom.2005.10.033","own_work_of_paper":true},"overall_composition":{"MG":0.0},"overall_composition_basis":"from_formula","paper":"doi:10.1016/j.jallcom.2005.10.033","paper_id":"doi:10.1016/j.jallcom.2005.10.033","phases":[{"label":"bcc (A2)","model_phase":"BCC_A2"}],"pid":"doi:10.1016/j.jallcom.2005.10.033/p4/tab-1/r39#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_A","property_group":"crystal structure","reader_agreement":"single_reader","reader_agreement_label":"unconfirmed (single reader)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","text_layer"],"record_kind":"general_table","source_system":"CA-MG","system":"CA-MG","temperature_K":2.0,"temperature_basis":"printed","temperature_printed":"2K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"reading_resolution","value":0.0005},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.04345,"sigma_method":{"basis":"prior","class":"dft","entry":"dft/priors/LATTICE_LENGTH","floor":0.01,"floor_unit":"relative (fraction of the value)","value":0.04345},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.0005},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_stored":"Å","value":4.345,"value_stored":4.345},{"chemical_system":"CA-MG","conditions":{"kind":"own_work_origin_unspecified"},"corrections":[{"after":{"MG":0.666667},"before":null,"evidence":{"class":"composition","decision_file":"composition_t223.json","doi":"10.1016/j.jallcom.2005.10.033","pdf_page":5,"pdf_sha256":"029c6f101194fbf9443ede0974e6bb6328feb85bb7ada2dc3d67e5b860271110","printed":"Table 4 ... the three laves phases of Mg2Ca | C14 -11.72 | C15 -11.33 | C36 -11.62","rationale":"All three rows are the compound Mg2Ca (caption formula); in CA-MG the non-first element Mg has x = 2/3 = 0.666667.","report_id":"ORCHID-TD-20261028-v1","table":"4","table_key":"t223"},"field":"overall_composition","gate":"TD20261028","rule":"source_adjudicated_table_defect","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1","image_sha256":"f7d0fd746d425c422971b0996de4c48b26f3515d79f5d2c0a35248a549b18abf","page":5,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"enthalpy of formation column, rows C14, C15, C36","verdict":"confirmed"}},{"after":"from_formula","before":null,"evidence":{"class":"composition","decision_file":"composition_t223.json","doi":"10.1016/j.jallcom.2005.10.033","pdf_page":5,"pdf_sha256":"029c6f101194fbf9443ede0974e6bb6328feb85bb7ada2dc3d67e5b860271110","printed":"Table 4 ... the three laves phases of Mg2Ca | C14 -11.72 | C15 -11.33 | C36 -11.62","rationale":"All three rows are the compound Mg2Ca (caption formula); in CA-MG the non-first element Mg has x = 2/3 = 0.666667.","report_id":"ORCHID-TD-20261028-v1","table":"4","table_key":"t223"},"field":"overall_composition_basis","gate":"TD20261028","rule":"source_adjudicated_table_defect","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1","image_sha256":"f7d0fd746d425c422971b0996de4c48b26f3515d79f5d2c0a35248a549b18abf","page":5,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"enthalpy of formation column, rows C14, C15, C36","verdict":"confirmed"}}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["state:composition","table_defect_correction_requires_downstream_revalidation"],"state_fully_specified":false},"fold_lpo":1,"fold_lso":0,"id":"ORC-YAFNVUVC7X","locator":{"ref":"doi:10.1016/j.jallcom.2005.10.033/p5/tab-4","row":1},"observation_type":"equilibrium_property","origin":{"basis":"this_work_kind_unstated_modelling_paper","class":"unspecified","measured_in":"doi:10.1016/j.jallcom.2005.10.033","own_work_of_paper":true},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","paper":"doi:10.1016/j.jallcom.2005.10.033","paper_id":"doi:10.1016/j.jallcom.2005.10.033","phases":[{"label":"C14","model_phase":"CAMG2_C14"}],"pid":"doi:10.1016/j.jallcom.2005.10.033/p5/tab-4/r01#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"HM_FORM","property_group":"formation","property_printed":"Enthalpies of formation","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","reference_state":{"CA":{"fixed_state_variables":{"T":298.15},"phase":"FCC_A1"},"MG":{"fixed_state_variables":{"T":298.15},"phase":"HCP_A3"}},"source_system":"CA-MG","system":"CA-MG","temperature_K":0.0,"temperature_basis":"printed","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.586},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":3.5,"sigma_method":{"basis":"calibrated","ci95":[2.41122,4.298262],"class":"unknown","entry":"value_types/HM_FORM/classes/unknown","floor":3.5,"floor_unit":"kJ/mol-atom","n_pairs":290,"value":3.5},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"kJ/mol-atom","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol-atom","unit_basis":"printed_unit","unit_printed":"kJ/mol-atom","unit_stored":"J/mol-atom","value":-11.72,"value_printed":-11.72,"value_stored":-11720.0},{"chemical_system":"CA-MG","conditions":{"kind":"own_work_origin_unspecified"},"corrections":[{"after":{"phase":"C14","strukturbericht":"C14"},"before":null,"evidence":{"batch":"table_context_batch_12","doi":"10.1016/j.jallcom.2005.10.033","pdf_page":5,"pdf_sha256":"029c6f101194fbf9443ede0974e6bb6328feb85bb7ada2dc3d67e5b860271110","printed":"C14 | a = 6.212, c = 10.050 | -1.761 | -11.72 (caption: laves phases of Mg2Ca)","rationale":"Printed table context for this group supplies strukturbericht; shared fields only, row values, references, uncertainty, composition and conditions unchanged; no forward fill across groups and no inference from symmetry, composition or other papers.","report_id":"ORCHID-TC-20261027-v1","source_group_rows":[1],"table":"4","table_key":"t223"},"field":"structure","gate":"TC20261027","rule":"source_adjudicated_table_context","visual_check":{"checked":"2026-10-27; Claude rendered-page inspection, table-context batch 12","image_sha256":"ae80749754f6e8b8d6d6c8b206d38d4ae67589183a433b403788084bb5503593","page":5,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"single row; the row label is the Strukturbericht designation","verdict":"confirmed"}}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["state:composition","table_context_correction_requires_downstream_revalidation"],"state_fully_specified":false},"fold_lpo":1,"fold_lso":0,"id":"ORC-5TF4CUFTLZ.52d842","locator":{"ref":"doi:10.1016/j.jallcom.2005.10.033/p5/tab-4","row":1},"observation_type":"structural_property","origin":{"basis":"this_work_kind_unstated_modelling_paper","class":"unspecified","measured_in":"doi:10.1016/j.jallcom.2005.10.033","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2005.10.033","paper_id":"doi:10.1016/j.jallcom.2005.10.033","phases":[{"label":"C14","model_phase":"CAMG2_C14"}],"pid":"doi:10.1016/j.jallcom.2005.10.033/p5/tab-4/r01#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_C","property_group":"crystal structure","property_printed":"c","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","source_system":"CA-MG","structure":{"phase":"C14","strukturbericht":"C14"},"system":"CA-MG","temperature_K":0.0,"temperature_basis":"printed","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.5025},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.02211,"sigma_method":{"basis":"calibrated","ci95":[0.001793,0.002549],"class":"unknown","entry":"value_types/LATTICE_LENGTH/classes/unknown","floor":0.0022,"floor_unit":"relative (fraction of the value)","n_pairs":586,"value":0.02211},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_printed":"Å","unit_stored":"Å","value":10.05,"value_printed":10.05,"value_stored":10.05},{"chemical_system":"CA-MG","conditions":{"kind":"own_work_origin_unspecified"},"corrections":[{"after":{"phase":"C14","strukturbericht":"C14"},"before":null,"evidence":{"batch":"table_context_batch_12","doi":"10.1016/j.jallcom.2005.10.033","pdf_page":5,"pdf_sha256":"029c6f101194fbf9443ede0974e6bb6328feb85bb7ada2dc3d67e5b860271110","printed":"C14 | a = 6.212, c = 10.050 | -1.761 | -11.72 (caption: laves phases of Mg2Ca)","rationale":"Printed table context for this group supplies strukturbericht; shared fields only, row values, references, uncertainty, composition and conditions unchanged; no forward fill across groups and no inference from symmetry, composition or other papers.","report_id":"ORCHID-TC-20261027-v1","source_group_rows":[1],"table":"4","table_key":"t223"},"field":"structure","gate":"TC20261027","rule":"source_adjudicated_table_context","visual_check":{"checked":"2026-10-27; Claude rendered-page inspection, table-context batch 12","image_sha256":"ae80749754f6e8b8d6d6c8b206d38d4ae67589183a433b403788084bb5503593","page":5,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"single row; the row label is the Strukturbericht designation","verdict":"confirmed"}}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["state:composition","table_context_correction_requires_downstream_revalidation"],"state_fully_specified":false},"fold_lpo":1,"fold_lso":0,"id":"ORC-5TF4CUFTLZ.79b677","locator":{"ref":"doi:10.1016/j.jallcom.2005.10.033/p5/tab-4","row":1},"observation_type":"structural_property","origin":{"basis":"this_work_kind_unstated_modelling_paper","class":"unspecified","measured_in":"doi:10.1016/j.jallcom.2005.10.033","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2005.10.033","paper_id":"doi:10.1016/j.jallcom.2005.10.033","phases":[{"label":"C14","model_phase":"CAMG2_C14"}],"pid":"doi:10.1016/j.jallcom.2005.10.033/p5/tab-4/r01#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_A","property_group":"crystal structure","property_printed":"a","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","source_system":"CA-MG","structure":{"phase":"C14","strukturbericht":"C14"},"system":"CA-MG","temperature_K":0.0,"temperature_basis":"printed","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.3106},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.01367,"sigma_method":{"basis":"calibrated","ci95":[0.001793,0.002549],"class":"unknown","entry":"value_types/LATTICE_LENGTH/classes/unknown","floor":0.0022,"floor_unit":"relative (fraction of the value)","n_pairs":586,"value":0.01367},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.0005},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_printed":"Å","unit_stored":"Å","value":6.212,"value_printed":6.212,"value_stored":6.212},{"chemical_system":"CA-MG","conditions":{"kind":"own_work_origin_unspecified"},"corrections":[{"after":{"MG":0.666667},"before":null,"evidence":{"class":"composition","decision_file":"composition_t223.json","doi":"10.1016/j.jallcom.2005.10.033","pdf_page":5,"pdf_sha256":"029c6f101194fbf9443ede0974e6bb6328feb85bb7ada2dc3d67e5b860271110","printed":"Table 4 ... the three laves phases of Mg2Ca | C14 -11.72 | C15 -11.33 | C36 -11.62","rationale":"All three rows are the compound Mg2Ca (caption formula); in CA-MG the non-first element Mg has x = 2/3 = 0.666667.","report_id":"ORCHID-TD-20261028-v1","table":"4","table_key":"t223"},"field":"overall_composition","gate":"TD20261028","rule":"source_adjudicated_table_defect","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1","image_sha256":"f7d0fd746d425c422971b0996de4c48b26f3515d79f5d2c0a35248a549b18abf","page":5,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"enthalpy of formation column, rows C14, C15, C36","verdict":"confirmed"}},{"after":"from_formula","before":null,"evidence":{"class":"composition","decision_file":"composition_t223.json","doi":"10.1016/j.jallcom.2005.10.033","pdf_page":5,"pdf_sha256":"029c6f101194fbf9443ede0974e6bb6328feb85bb7ada2dc3d67e5b860271110","printed":"Table 4 ... the three laves phases of Mg2Ca | C14 -11.72 | C15 -11.33 | C36 -11.62","rationale":"All three rows are the compound Mg2Ca (caption formula); in CA-MG the non-first element Mg has x = 2/3 = 0.666667.","report_id":"ORCHID-TD-20261028-v1","table":"4","table_key":"t223"},"field":"overall_composition_basis","gate":"TD20261028","rule":"source_adjudicated_table_defect","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1","image_sha256":"f7d0fd746d425c422971b0996de4c48b26f3515d79f5d2c0a35248a549b18abf","page":5,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"enthalpy of formation column, rows C14, C15, C36","verdict":"confirmed"}}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["state:composition","table_defect_correction_requires_downstream_revalidation"],"state_fully_specified":false},"fold_lpo":1,"fold_lso":0,"id":"ORC-OY76UFOWVA","locator":{"ref":"doi:10.1016/j.jallcom.2005.10.033/p5/tab-4","row":2},"observation_type":"equilibrium_property","origin":{"basis":"this_work_kind_unstated_modelling_paper","class":"unspecified","measured_in":"doi:10.1016/j.jallcom.2005.10.033","own_work_of_paper":true},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","paper":"doi:10.1016/j.jallcom.2005.10.033","paper_id":"doi:10.1016/j.jallcom.2005.10.033","phases":[{"label":"C15"}],"pid":"doi:10.1016/j.jallcom.2005.10.033/p5/tab-4/r02#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"HM_FORM","property_group":"formation","property_printed":"Enthalpies of formation","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","reference_state":{"CA":{"fixed_state_variables":{"T":298.15},"phase":"FCC_A1"},"MG":{"fixed_state_variables":{"T":298.15},"phase":"HCP_A3"}},"source_system":"CA-MG","system":"CA-MG","temperature_K":0.0,"temperature_basis":"printed","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.5665},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":3.5,"sigma_method":{"basis":"calibrated","ci95":[2.41122,4.298262],"class":"unknown","entry":"value_types/HM_FORM/classes/unknown","floor":3.5,"floor_unit":"kJ/mol-atom","n_pairs":290,"value":3.5},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"kJ/mol-atom","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol-atom","unit_basis":"printed_unit","unit_printed":"kJ/mol-atom","unit_stored":"J/mol-atom","value":-11.33,"value_printed":-11.33,"value_stored":-11330.0},{"chemical_system":"CA-MG","conditions":{"kind":"own_work_origin_unspecified"},"corrections":[{"after":{"phase":"C15","strukturbericht":"C15"},"before":null,"evidence":{"batch":"table_context_batch_12","doi":"10.1016/j.jallcom.2005.10.033","pdf_page":5,"pdf_sha256":"029c6f101194fbf9443ede0974e6bb6328feb85bb7ada2dc3d67e5b860271110","printed":"C15 | a = 8.760 | -1.757 | -11.33","rationale":"Printed table context for this group supplies strukturbericht; shared fields only, row values, references, uncertainty, composition and conditions unchanged; no forward fill across groups and no inference from symmetry, composition or other papers.","report_id":"ORCHID-TC-20261027-v1","source_group_rows":[2],"table":"4","table_key":"t223"},"field":"structure","gate":"TC20261027","rule":"source_adjudicated_table_context","visual_check":{"checked":"2026-10-27; Claude rendered-page inspection, table-context batch 12","image_sha256":"ae80749754f6e8b8d6d6c8b206d38d4ae67589183a433b403788084bb5503593","page":5,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"single row; the row label is the Strukturbericht designation","verdict":"confirmed"}}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["state:composition","table_context_correction_requires_downstream_revalidation"],"state_fully_specified":false},"fold_lpo":1,"fold_lso":0,"id":"ORC-JBXUST33F4","locator":{"ref":"doi:10.1016/j.jallcom.2005.10.033/p5/tab-4","row":2},"observation_type":"structural_property","origin":{"basis":"this_work_kind_unstated_modelling_paper","class":"unspecified","measured_in":"doi:10.1016/j.jallcom.2005.10.033","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2005.10.033","paper_id":"doi:10.1016/j.jallcom.2005.10.033","phases":[{"label":"C15"}],"pid":"doi:10.1016/j.jallcom.2005.10.033/p5/tab-4/r02#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_A","property_group":"crystal structure","property_printed":"a","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","source_system":"CA-MG","structure":{"phase":"C15","strukturbericht":"C15"},"system":"CA-MG","temperature_K":0.0,"temperature_basis":"printed","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.438},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.01927,"sigma_method":{"basis":"calibrated","ci95":[0.001793,0.002549],"class":"unknown","entry":"value_types/LATTICE_LENGTH/classes/unknown","floor":0.0022,"floor_unit":"relative (fraction of the value)","n_pairs":586,"value":0.01927},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_printed":"Å","unit_stored":"Å","value":8.76,"value_printed":8.76,"value_stored":8.76},{"chemical_system":"CA-MG","conditions":{"kind":"own_work_origin_unspecified"},"corrections":[{"after":{"MG":0.666667},"before":null,"evidence":{"class":"composition","decision_file":"composition_t223.json","doi":"10.1016/j.jallcom.2005.10.033","pdf_page":5,"pdf_sha256":"029c6f101194fbf9443ede0974e6bb6328feb85bb7ada2dc3d67e5b860271110","printed":"Table 4 ... the three laves phases of Mg2Ca | C14 -11.72 | C15 -11.33 | C36 -11.62","rationale":"All three rows are the compound Mg2Ca (caption formula); in CA-MG the non-first element Mg has x = 2/3 = 0.666667.","report_id":"ORCHID-TD-20261028-v1","table":"4","table_key":"t223"},"field":"overall_composition","gate":"TD20261028","rule":"source_adjudicated_table_defect","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1","image_sha256":"f7d0fd746d425c422971b0996de4c48b26f3515d79f5d2c0a35248a549b18abf","page":5,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"enthalpy of formation column, rows C14, C15, C36","verdict":"confirmed"}},{"after":"from_formula","before":null,"evidence":{"class":"composition","decision_file":"composition_t223.json","doi":"10.1016/j.jallcom.2005.10.033","pdf_page":5,"pdf_sha256":"029c6f101194fbf9443ede0974e6bb6328feb85bb7ada2dc3d67e5b860271110","printed":"Table 4 ... the three laves phases of Mg2Ca | C14 -11.72 | C15 -11.33 | C36 -11.62","rationale":"All three rows are the compound Mg2Ca (caption formula); in CA-MG the non-first element Mg has x = 2/3 = 0.666667.","report_id":"ORCHID-TD-20261028-v1","table":"4","table_key":"t223"},"field":"overall_composition_basis","gate":"TD20261028","rule":"source_adjudicated_table_defect","visual_check":{"checked":"2026-10-28; Claude (Studio sub-agent readers) rendered-page check, AI-assisted, not human re-review; ORCHID-TD-20261028-v1","image_sha256":"f7d0fd746d425c422971b0996de4c48b26f3515d79f5d2c0a35248a549b18abf","page":5,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"enthalpy of formation column, rows C14, C15, C36","verdict":"confirmed"}}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["state:composition","table_defect_correction_requires_downstream_revalidation"],"state_fully_specified":false},"fold_lpo":1,"fold_lso":0,"id":"ORC-AWNMO6ZWEX","locator":{"ref":"doi:10.1016/j.jallcom.2005.10.033/p5/tab-4","row":3},"observation_type":"equilibrium_property","origin":{"basis":"this_work_kind_unstated_modelling_paper","class":"unspecified","measured_in":"doi:10.1016/j.jallcom.2005.10.033","own_work_of_paper":true},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","paper":"doi:10.1016/j.jallcom.2005.10.033","paper_id":"doi:10.1016/j.jallcom.2005.10.033","phases":[{"label":"C36"}],"pid":"doi:10.1016/j.jallcom.2005.10.033/p5/tab-4/r03#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"HM_FORM","property_group":"formation","property_printed":"Enthalpies of formation","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","reference_state":{"CA":{"fixed_state_variables":{"T":298.15},"phase":"FCC_A1"},"MG":{"fixed_state_variables":{"T":298.15},"phase":"HCP_A3"}},"source_system":"CA-MG","system":"CA-MG","temperature_K":0.0,"temperature_basis":"printed","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.581},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":3.5,"sigma_method":{"basis":"calibrated","ci95":[2.41122,4.298262],"class":"unknown","entry":"value_types/HM_FORM/classes/unknown","floor":3.5,"floor_unit":"kJ/mol-atom","n_pairs":290,"value":3.5},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"kJ/mol-atom","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol-atom","unit_basis":"printed_unit","unit_printed":"kJ/mol-atom","unit_stored":"J/mol-atom","value":-11.62,"value_printed":-11.62,"value_stored":-11620.0},{"chemical_system":"CA-MG","conditions":{"kind":"own_work_origin_unspecified"},"corrections":[{"after":{"phase":"C36","strukturbericht":"C36"},"before":null,"evidence":{"batch":"table_context_batch_12","doi":"10.1016/j.jallcom.2005.10.033","pdf_page":5,"pdf_sha256":"029c6f101194fbf9443ede0974e6bb6328feb85bb7ada2dc3d67e5b860271110","printed":"C36 | a = 6.200, c = 20.184 | -1.760 | -11.62","rationale":"Printed table context for this group supplies strukturbericht; shared fields only, row values, references, uncertainty, composition and conditions unchanged; no forward fill across groups and no inference from symmetry, composition or other papers.","report_id":"ORCHID-TC-20261027-v1","source_group_rows":[3],"table":"4","table_key":"t223"},"field":"structure","gate":"TC20261027","rule":"source_adjudicated_table_context","visual_check":{"checked":"2026-10-27; Claude rendered-page inspection, table-context batch 12","image_sha256":"ae80749754f6e8b8d6d6c8b206d38d4ae67589183a433b403788084bb5503593","page":5,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"single row; the row label is the Strukturbericht designation","verdict":"confirmed"}}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["state:composition","table_context_correction_requires_downstream_revalidation"],"state_fully_specified":false},"fold_lpo":1,"fold_lso":0,"id":"ORC-CD5RL4JFUD.641670","locator":{"ref":"doi:10.1016/j.jallcom.2005.10.033/p5/tab-4","row":3},"observation_type":"structural_property","origin":{"basis":"this_work_kind_unstated_modelling_paper","class":"unspecified","measured_in":"doi:10.1016/j.jallcom.2005.10.033","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2005.10.033","paper_id":"doi:10.1016/j.jallcom.2005.10.033","phases":[{"label":"C36"}],"pid":"doi:10.1016/j.jallcom.2005.10.033/p5/tab-4/r03#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_C","property_group":"crystal structure","property_printed":"c","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","source_system":"CA-MG","structure":{"phase":"C36","strukturbericht":"C36"},"system":"CA-MG","temperature_K":0.0,"temperature_basis":"printed","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":1.0092},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.0444,"sigma_method":{"basis":"calibrated","ci95":[0.001793,0.002549],"class":"unknown","entry":"value_types/LATTICE_LENGTH/classes/unknown","floor":0.0022,"floor_unit":"relative (fraction of the value)","n_pairs":586,"value":0.0444},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.0005},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_printed":"Å","unit_stored":"Å","value":20.184,"value_printed":20.184,"value_stored":20.184},{"chemical_system":"CA-MG","conditions":{"kind":"own_work_origin_unspecified"},"corrections":[{"after":{"phase":"C36","strukturbericht":"C36"},"before":null,"evidence":{"batch":"table_context_batch_12","doi":"10.1016/j.jallcom.2005.10.033","pdf_page":5,"pdf_sha256":"029c6f101194fbf9443ede0974e6bb6328feb85bb7ada2dc3d67e5b860271110","printed":"C36 | a = 6.200, c = 20.184 | -1.760 | -11.62","rationale":"Printed table context for this group supplies strukturbericht; shared fields only, row values, references, uncertainty, composition and conditions unchanged; no forward fill across groups and no inference from symmetry, composition or other papers.","report_id":"ORCHID-TC-20261027-v1","source_group_rows":[3],"table":"4","table_key":"t223"},"field":"structure","gate":"TC20261027","rule":"source_adjudicated_table_context","visual_check":{"checked":"2026-10-27; Claude rendered-page inspection, table-context batch 12","image_sha256":"ae80749754f6e8b8d6d6c8b206d38d4ae67589183a433b403788084bb5503593","page":5,"pdf_sha256_prefix":"029c6f101194fbf9","seen":"single row; the row label is the Strukturbericht designation","verdict":"confirmed"}}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["state:composition","table_context_correction_requires_downstream_revalidation"],"state_fully_specified":false},"fold_lpo":1,"fold_lso":0,"id":"ORC-CD5RL4JFUD.7952fc","locator":{"ref":"doi:10.1016/j.jallcom.2005.10.033/p5/tab-4","row":3},"observation_type":"structural_property","origin":{"basis":"this_work_kind_unstated_modelling_paper","class":"unspecified","measured_in":"doi:10.1016/j.jallcom.2005.10.033","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2005.10.033","paper_id":"doi:10.1016/j.jallcom.2005.10.033","phases":[{"label":"C36"}],"pid":"doi:10.1016/j.jallcom.2005.10.033/p5/tab-4/r03#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_A","property_group":"crystal structure","property_printed":"a","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","source_system":"CA-MG","structure":{"phase":"C36","strukturbericht":"C36"},"system":"CA-MG","temperature_K":0.0,"temperature_basis":"printed","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.31},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.05,"sigma_method":{"basis":"calibrated","ci95":[0.001793,0.002549],"class":"unknown","entry":"value_types/LATTICE_LENGTH/classes/unknown","floor":0.0022,"floor_unit":"relative (fraction of the value)","n_pairs":586,"value":0.01364},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_printed":"Å","unit_stored":"Å","value":6.2,"value_printed":6.2,"value_stored":6.2},{"chemical_system":"CA-MG","conditions":{"kind":"own_work_origin_unspecified"},"corrections":[{"after":"CA-MG","before":"CA-MG-SR","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SR":0.0},"phases":["Mg2Ca-C14"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["reference-dependent quantity without a resolved reference state","state:reference_state"],"state_fully_specified":false,"system_is_state_subsystem":true},"fold_lpo":3,"fold_lso":0,"id":"ORC-QFNUO7XCBY.c38408","locator":{"ref":"sha256:a7cbade1719f2946/p4/tab-2","row":6},"merged_ids":["ORC-QFNUO7XCBY.e015d1"],"observation_type":"equilibrium_property","origin":{"basis":"this_work_kind_unstated","class":"unspecified","measured_in":"doi:10.1016/j.jallcom.2005.09.076","own_work_of_paper":true},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SR":0.0},"paper":"doi:10.1016/j.jallcom.2005.09.076","paper_id":"doi:10.1016/j.jallcom.2005.09.076","phases":[{"label":"Mg2Ca-C14"}],"pid":"sha256:a7cbade1719f2946/p4/tab-2/r06#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"HM_FORM","property_group":"formation","property_printed":"Enthalpy of formation","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","reference_state":{"CA":{"phase":"printed:none"},"MG":{"phase":"printed:none"}},"reference_state_stored":{"CA":{"phase":"printed:none"},"MG":{"phase":"printed:none"},"SR":{"phase":"printed:none"}},"source_system":"CA-MG-SR","system":"CA-MG","temperature_K":0.0,"temperature_basis":"printed","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.585805},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":3.5,"sigma_method":{"basis":"calibrated","ci95":[2.41122,4.298262],"class":"unknown","entry":"value_types/HM_FORM/classes/unknown","floor":3.5,"floor_unit":"kJ/mol-atom","n_pairs":290,"value":3.5},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":5e-05},"sigma_scatter":null,"unit":"kJ/mol-atom","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol-atom","unit_basis":"printed_unit","unit_printed":"kJ/mol of atom","unit_stored":"J/mol-atom","value":-11.7161,"value_printed":-11.7161,"value_stored":-11716.1},{"chemical_system":"CA-MG","conditions":{"kind":"own_work_origin_unspecified"},"corrections":[{"after":"CA-MG","before":"CA-MG-SR","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SR":0.0},"phases":["Mg2Ca-C14"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","system_is_state_subsystem":true},"fold_lpo":3,"fold_lso":0,"id":"ORC-ZPAMVKC7IH.359742","locator":{"ref":"sha256:a7cbade1719f2946/p4/tab-2","row":6},"merged_ids":["ORC-ZPAMVKC7IH.710a86"],"observation_type":"structural_property","origin":{"basis":"this_work_kind_unstated","class":"unspecified","measured_in":"doi:10.1016/j.jallcom.2005.09.076","own_work_of_paper":true},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SR":0.0},"paper":"doi:10.1016/j.jallcom.2005.09.076","paper_id":"doi:10.1016/j.jallcom.2005.09.076","phases":[{"label":"Mg2Ca-C14"}],"pid":"sha256:a7cbade1719f2946/p4/tab-2/r06#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_A","property_group":"crystal structure","property_printed":"a (=b)","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","source_system":"CA-MG-SR","system":"CA-MG","temperature_K":0.0,"temperature_basis":"printed","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.3106},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.01367,"sigma_method":{"basis":"calibrated","ci95":[0.001793,0.002549],"class":"unknown","entry":"value_types/LATTICE_LENGTH/classes/unknown","floor":0.0022,"floor_unit":"relative (fraction of the value)","n_pairs":586,"value":0.01367},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.0005},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_printed":"Å","unit_stored":"Å","value":6.212,"value_printed":6.212,"value_stored":6.212},{"chemical_system":"CA-MG","conditions":{"kind":"own_work_origin_unspecified"},"corrections":[{"after":"CA-MG","before":"CA-MG-SR","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SR":0.0},"phases":["Mg2Ca-C14"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","system_is_state_subsystem":true},"fold_lpo":3,"fold_lso":0,"id":"ORC-ZPAMVKC7IH.6776bc","locator":{"ref":"sha256:a7cbade1719f2946/p4/tab-2","row":6},"merged_ids":["ORC-ZPAMVKC7IH.82b071"],"observation_type":"structural_property","origin":{"basis":"this_work_kind_unstated","class":"unspecified","measured_in":"doi:10.1016/j.jallcom.2005.09.076","own_work_of_paper":true},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SR":0.0},"paper":"doi:10.1016/j.jallcom.2005.09.076","paper_id":"doi:10.1016/j.jallcom.2005.09.076","phases":[{"label":"Mg2Ca-C14"}],"pid":"sha256:a7cbade1719f2946/p4/tab-2/r06#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_C","property_group":"crystal structure","property_printed":"c","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","source_system":"CA-MG-SR","system":"CA-MG","temperature_K":0.0,"temperature_basis":"printed","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.5025},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.02211,"sigma_method":{"basis":"calibrated","ci95":[0.001793,0.002549],"class":"unknown","entry":"value_types/LATTICE_LENGTH/classes/unknown","floor":0.0022,"floor_unit":"relative (fraction of the value)","n_pairs":586,"value":0.02211},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_printed":"Å","unit_stored":"Å","value":10.05,"value_printed":10.05,"value_stored":10.05},{"chemical_system":"CA-MG","cited_sources":[{"doi":"10.1524/zkri.1993.206.part-2.313","first_author":"Gingl","kind":"unknown","label":"40","paper":"doi:10.1524/zkri.1993.206.part-2.313","reference":"F. Gingl, K. Yvon, Zeitschrift Fur Kristallogr. 206 (1993) 313–314.","status":"resolved","year":"1993"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":null,"before":0.0,"evidence":{"caption":"Structure properties and enthalpy of formation for Ca–Mg–Sr ternary system in a variety of order structure type","why":"0 K is the temperature of the first-principles columns of the table, not of this cited experimental value; formation quantities are standard (298.15 K), others unstated"},"field":"temperature_K","gate":"R2","rule":"experimental_value_from_0K_caption","visual_check":{"checked":"2026-10-24","image_sha256":"797bae5146d08da7016bcf863d95822304e3e45ac67e031a49aad7fa228cf482","page":3,"pdf_sha256_prefix":"664f945fea949860","seen":"Cited experimental values in tables captioned 0 K / first-principles took 0 K; formation quantities are standard (298.15 K), ambient when the caption says so, unstated otherwise.","verdict":"rule_confirmed"}},{"after":"CA-MG","before":"CA-MG-SR","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SR":0.0},"phases":["Mg2Ca-C14"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","system_is_state_subsystem":true},"fold_lpo":3,"fold_lso":0,"id":"ORC-UXCVXS5BUG.168a11","locator":{"ref":"sha256:a7cbade1719f2946/p4/tab-2","row":7},"merged_ids":["ORC-UXCVXS5BUG.890225"],"observation_type":"structural_property","origin":{"basis":"cited_work_title_experimental","class":"experimental","own_work_of_paper":false},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SR":0.0},"paper":"doi:10.1016/j.jallcom.2005.09.076","paper_id":"doi:10.1016/j.jallcom.2005.09.076","phases":[{"label":"Mg2Ca-C14"}],"pid":"sha256:a7cbade1719f2946/p4/tab-2/r07#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_C","property_group":"crystal structure","property_printed":"c","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","source_system":"CA-MG-SR","system":"CA-MG","temperature_K":null,"temperature_K_stored":0.0,"temperature_basis":"not_printed","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.5085},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.02237,"sigma_method":{"basis":"calibrated","ci95":[0.001793,0.002549],"class":"unknown","entry":"value_types/LATTICE_LENGTH/classes/unknown","floor":0.0022,"floor_unit":"relative (fraction of the value)","n_pairs":586,"value":0.02237},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_printed":"Å","unit_stored":"Å","value":10.17,"value_printed":10.17,"value_stored":10.17},{"chemical_system":"CA-MG","cited_sources":[{"doi":"10.1524/zkri.1993.206.part-2.313","first_author":"Gingl","kind":"unknown","label":"40","paper":"doi:10.1524/zkri.1993.206.part-2.313","reference":"F. Gingl, K. Yvon, Zeitschrift Fur Kristallogr. 206 (1993) 313–314.","status":"resolved","year":"1993"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":null,"before":0.0,"evidence":{"caption":"Structure properties and enthalpy of formation for Ca–Mg–Sr ternary system in a variety of order structure type","why":"0 K is the temperature of the first-principles columns of the table, not of this cited experimental value; formation quantities are standard (298.15 K), others unstated"},"field":"temperature_K","gate":"R2","rule":"experimental_value_from_0K_caption","visual_check":{"checked":"2026-10-24","image_sha256":"797bae5146d08da7016bcf863d95822304e3e45ac67e031a49aad7fa228cf482","page":3,"pdf_sha256_prefix":"664f945fea949860","seen":"Cited experimental values in tables captioned 0 K / first-principles took 0 K; formation quantities are standard (298.15 K), ambient when the caption says so, unstated otherwise.","verdict":"rule_confirmed"}},{"after":"CA-MG","before":"CA-MG-SR","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SR":0.0},"phases":["Mg2Ca-C14"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","system_is_state_subsystem":true},"fold_lpo":3,"fold_lso":0,"id":"ORC-UXCVXS5BUG.2807e5","locator":{"ref":"sha256:a7cbade1719f2946/p4/tab-2","row":7},"merged_ids":["ORC-UXCVXS5BUG.bdea12"],"observation_type":"structural_property","origin":{"basis":"cited_work_title_experimental","class":"experimental","own_work_of_paper":false},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SR":0.0},"paper":"doi:10.1016/j.jallcom.2005.09.076","paper_id":"doi:10.1016/j.jallcom.2005.09.076","phases":[{"label":"Mg2Ca-C14"}],"pid":"sha256:a7cbade1719f2946/p4/tab-2/r07#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_A","property_group":"crystal structure","property_printed":"a","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","source_system":"CA-MG-SR","system":"CA-MG","temperature_K":null,"temperature_K_stored":0.0,"temperature_basis":"not_printed","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.31355},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.0138,"sigma_method":{"basis":"calibrated","ci95":[0.001793,0.002549],"class":"unknown","entry":"value_types/LATTICE_LENGTH/classes/unknown","floor":0.0022,"floor_unit":"relative (fraction of the value)","n_pairs":586,"value":0.0138},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.0005},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_printed":"Å","unit_stored":"Å","value":6.271,"value_printed":6.271,"value_stored":6.271},{"chemical_system":"CA-MG","cited_sources":[{"first_author":"Pyagai","kind":"unknown","label":"41","reference":"I.N. Pyagai, A.V. Vakhobov, Zh. Fiz. Khim. 64 (1990) 2788–2789.","status":"resolved","year":"1990"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":"CA-MG","before":"CA-MG-SR","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SR":0.0},"phases":["Mg2Ca-C14"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["reference-dependent quantity without a resolved reference state","state:reference_state"],"state_fully_specified":false,"system_is_state_subsystem":true},"fold_lpo":3,"fold_lso":0,"id":"ORC-PZ7TZP7URJ.a0a8e2","locator":{"ref":"sha256:a7cbade1719f2946/p4/tab-2","row":8},"merged_ids":["ORC-PZ7TZP7URJ.e8fb65"],"observation_type":"equilibrium_property","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","own_work_of_paper":false},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SR":0.0},"paper":"doi:10.1016/j.jallcom.2005.09.076","paper_id":"doi:10.1016/j.jallcom.2005.09.076","phases":[{"label":"Mg2Ca-C14"}],"pid":"sha256:a7cbade1719f2946/p4/tab-2/r08#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"HM_FORM","property_group":"formation","property_printed":"Enthalpy of formation","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","reference_state":{"CA":{"phase":"printed:none"},"MG":{"phase":"printed:none"}},"reference_state_stored":{"CA":{"phase":"printed:none"},"MG":{"phase":"printed:none"},"SR":{"phase":"printed:none"}},"source_system":"CA-MG-SR","system":"CA-MG","temperature_K":0.0,"temperature_basis":"printed","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":1.0485},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":3.5,"sigma_method":{"basis":"calibrated","ci95":[2.41122,4.298262],"class":"unknown","entry":"value_types/HM_FORM/classes/unknown","floor":3.5,"floor_unit":"kJ/mol-atom","n_pairs":290,"value":3.5},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"kJ/mol-atom","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol-atom","unit_basis":"printed_unit","unit_printed":"kJ/mol of atom","unit_stored":"J/mol-atom","value":-20.97,"value_printed":-20.97,"value_stored":-20970.0},{"chemical_system":"CA-MG","cited_sources":[{"doi":"10.1016/0001-6160(64)90056-2","first_author":"King","kind":"unknown","label":"9","paper":"doi:10.1016/0001-6160(64)90056-2","reference":"R.C. King, O.J. Kleppa, Acta Metall. 12 (1964) 87–97.","status":"resolved","year":"1964"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":298.15,"before":0.0,"evidence":{"caption":"Structure properties and enthalpy of formation for Ca–Mg–Sr ternary system in a variety of order structure type","why":"0 K is the temperature of the first-principles columns of the table, not of this cited experimental value; formation quantities are standard (298.15 K), others unstated"},"field":"temperature_K","gate":"R2","rule":"experimental_value_from_0K_caption","visual_check":{"checked":"2026-10-24","image_sha256":"797bae5146d08da7016bcf863d95822304e3e45ac67e031a49aad7fa228cf482","page":3,"pdf_sha256_prefix":"664f945fea949860","seen":"Cited experimental values in tables captioned 0 K / first-principles took 0 K; formation quantities are standard (298.15 K), ambient when the caption says so, unstated otherwise.","verdict":"rule_confirmed"}},{"after":"CA-MG","before":"CA-MG-SR","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SR":0.0},"phases":["Mg2Ca-C14"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["reference-dependent quantity without a resolved reference state","state:reference_state"],"state_fully_specified":false,"system_is_state_subsystem":true},"fold_lpo":3,"fold_lso":0,"id":"ORC-NICUD3CMK2.13630a","locator":{"ref":"sha256:a7cbade1719f2946/p4/tab-2","row":9},"merged_ids":["ORC-NICUD3CMK2.3469be"],"observation_type":"equilibrium_property","origin":{"basis":"cited_work_fulltext_experimental","class":"experimental","own_work_of_paper":false},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SR":0.0},"paper":"doi:10.1016/j.jallcom.2005.09.076","paper_id":"doi:10.1016/j.jallcom.2005.09.076","phases":[{"label":"Mg2Ca-C14"}],"pid":"sha256:a7cbade1719f2946/p4/tab-2/r09#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"HM_FORM","property_group":"formation","property_printed":"Enthalpy of formation","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","reference_state":{"CA":{"phase":"printed:none"},"MG":{"phase":"printed:none"}},"reference_state_stored":{"CA":{"phase":"printed:none"},"MG":{"phase":"printed:none"},"SR":{"phase":"printed:none"}},"source_system":"CA-MG-SR","system":"CA-MG","temperature_K":298.15,"temperature_K_stored":0.0,"temperature_basis":"assumed_standard_298K","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.669},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":3.5,"sigma_method":{"basis":"calibrated","ci95":[2.41122,4.298262],"class":"unknown","entry":"value_types/HM_FORM/classes/unknown","floor":3.5,"floor_unit":"kJ/mol-atom","n_pairs":290,"value":3.5},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"kJ/mol-atom","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol-atom","unit_basis":"printed_unit","unit_printed":"kJ/mol of atom","unit_stored":"J/mol-atom","value":-13.38,"value_printed":-13.38,"value_stored":-13380.0},{"chemical_system":"CA-MG","cited_sources":[{"first_author":"Gartner","kind":"unknown","label":"42","reference":"G.J. Gartner, Master thesis, Iowa State University, 1965.","status":"resolved","year":"1965"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":298.15,"before":0.0,"evidence":{"caption":"Structure properties and enthalpy of formation for Ca–Mg–Sr ternary system in a variety of order structure type","why":"0 K is the temperature of the first-principles columns of the table, not of this cited experimental value; formation quantities are standard (298.15 K), others unstated"},"field":"temperature_K","gate":"R2","rule":"experimental_value_from_0K_caption","visual_check":{"checked":"2026-10-24","image_sha256":"797bae5146d08da7016bcf863d95822304e3e45ac67e031a49aad7fa228cf482","page":3,"pdf_sha256_prefix":"664f945fea949860","seen":"Cited experimental values in tables captioned 0 K / first-principles took 0 K; formation quantities are standard (298.15 K), ambient when the caption says so, unstated otherwise.","verdict":"rule_confirmed"}},{"after":"CA-MG","before":"CA-MG-SR","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SR":0.0},"phases":["Mg2Ca-C14"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["reference-dependent quantity without a resolved reference state","state:reference_state"],"state_fully_specified":false,"system_is_state_subsystem":true},"fold_lpo":3,"fold_lso":0,"id":"ORC-IKPTGBFS7P.6f9e12","locator":{"ref":"sha256:a7cbade1719f2946/p4/tab-2","row":10},"merged_ids":["ORC-IKPTGBFS7P.f2a875"],"observation_type":"equilibrium_property","origin":{"basis":"cited_work_before_1980_assumed_experimental","class":"experimental","own_work_of_paper":false},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SR":0.0},"paper":"doi:10.1016/j.jallcom.2005.09.076","paper_id":"doi:10.1016/j.jallcom.2005.09.076","phases":[{"label":"Mg2Ca-C14"}],"pid":"sha256:a7cbade1719f2946/p4/tab-2/r10#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"HM_FORM","property_group":"formation","property_printed":"Enthalpy of formation","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","reference_state":{"CA":{"phase":"printed:none"},"MG":{"phase":"printed:none"}},"reference_state_stored":{"CA":{"phase":"printed:none"},"MG":{"phase":"printed:none"},"SR":{"phase":"printed:none"}},"source_system":"CA-MG-SR","system":"CA-MG","temperature_K":298.15,"temperature_K_stored":0.0,"temperature_basis":"assumed_standard_298K","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.652},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":3.5,"sigma_method":{"basis":"calibrated","ci95":[2.41122,4.298262],"class":"unknown","entry":"value_types/HM_FORM/classes/unknown","floor":3.5,"floor_unit":"kJ/mol-atom","n_pairs":290,"value":3.5},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"kJ/mol-atom","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol-atom","unit_basis":"printed_unit","unit_printed":"kJ/mol of atom","unit_stored":"J/mol-atom","value":-13.04,"value_printed":-13.04,"value_stored":-13040.0},{"chemical_system":"CA-MG","cited_sources":[{"first_author":"Davison","kind":"unknown","label":"43","reference":"J.E. Davison, J.F. Smith, Trans. AIME 242 (1968) 2045–2049.","status":"resolved","year":"1968"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":"CA-MG","before":"CA-MG-SR","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SR":0.0},"phases":["Mg2Ca-C14"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["reference-dependent quantity without a resolved reference state","state:reference_state"],"state_fully_specified":false,"system_is_state_subsystem":true},"fold_lpo":3,"fold_lso":0,"id":"ORC-RGWLMRTDMG.5e2caf","locator":{"ref":"sha256:a7cbade1719f2946/p4/tab-2","row":11},"merged_ids":["ORC-RGWLMRTDMG.d11ee2"],"observation_type":"equilibrium_property","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","own_work_of_paper":false},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SR":0.0},"paper":"doi:10.1016/j.jallcom.2005.09.076","paper_id":"doi:10.1016/j.jallcom.2005.09.076","phases":[{"label":"Mg2Ca-C14"}],"pid":"sha256:a7cbade1719f2946/p4/tab-2/r11#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"HM_FORM","property_group":"formation","property_printed":"Enthalpy of formation","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","reference_state":{"CA":{"phase":"printed:none"},"MG":{"phase":"printed:none"}},"reference_state_stored":{"CA":{"phase":"printed:none"},"MG":{"phase":"printed:none"},"SR":{"phase":"printed:none"}},"source_system":"CA-MG-SR","system":"CA-MG","temperature_K":0.0,"temperature_basis":"printed","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.652},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":3.5,"sigma_method":{"basis":"calibrated","ci95":[2.41122,4.298262],"class":"unknown","entry":"value_types/HM_FORM/classes/unknown","floor":3.5,"floor_unit":"kJ/mol-atom","n_pairs":290,"value":3.5},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"kJ/mol-atom","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol-atom","unit_basis":"printed_unit","unit_printed":"kJ/mol of atom","unit_stored":"J/mol-atom","value":-13.04,"value_printed":-13.04,"value_stored":-13040.0},{"chemical_system":"CA-MG","cited_sources":[{"first_author":"Smith","kind":"unknown","label":"44","reference":"J.F. Smith, R.L. Smythe, Acta Mater. 7 (1961) 1959.","status":"resolved","year":1961,"year_basis":"printed_parenthesised_year","year_read":"1959"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":"CA-MG","before":"CA-MG-SR","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SR":0.0},"phases":["Mg2Ca-C14"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["reference-dependent quantity without a resolved reference state","state:reference_state"],"state_fully_specified":false,"system_is_state_subsystem":true},"fold_lpo":3,"fold_lso":0,"id":"ORC-MFXA4ERQYD.227b60","locator":{"ref":"sha256:a7cbade1719f2946/p4/tab-2","row":12},"merged_ids":["ORC-MFXA4ERQYD.3b28f6"],"observation_type":"equilibrium_property","origin":{"basis":"cited_work_before_1980_assumed_experimental","class":"experimental","own_work_of_paper":false},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SR":0.0},"paper":"doi:10.1016/j.jallcom.2005.09.076","paper_id":"doi:10.1016/j.jallcom.2005.09.076","phases":[{"label":"Mg2Ca-C14"}],"pid":"sha256:a7cbade1719f2946/p4/tab-2/r12#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"HM_FORM","property_group":"formation","property_printed":"Enthalpy of formation","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","reference_state":{"CA":{"phase":"printed:none"},"MG":{"phase":"printed:none"}},"reference_state_stored":{"CA":{"phase":"printed:none"},"MG":{"phase":"printed:none"},"SR":{"phase":"printed:none"}},"source_system":"CA-MG-SR","system":"CA-MG","temperature_K":359.0,"temperature_basis":"printed_range","temperature_printed":"0 K","temperature_range_K":{"max":718.0,"min":0.0,"printed":"0 K"},"temperature_uncertainty":{"basis":"printed_range","value":359.0},"tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.5645},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":3.5,"sigma_method":{"basis":"calibrated","ci95":[2.41122,4.298262],"class":"unknown","entry":"value_types/HM_FORM/classes/unknown","floor":3.5,"floor_unit":"kJ/mol-atom","n_pairs":290,"value":3.5},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"kJ/mol-atom","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol-atom","unit_basis":"printed_unit","unit_printed":"kJ/mol of atom","unit_stored":"J/mol-atom","value":-11.29,"value_printed":-11.29,"value_stored":-11290.0},{"chemical_system":"CA-MG","cited_sources":[{"doi":"10.1016/0022-5088(64)90053-0","first_author":"Chiotti","kind":"unknown","label":"45","paper":"doi:10.1016/0022-5088(64)90053-0","reference":"P. Chiotti, R.W. Curtis, P.F. Woerner, J. Less-Common Met. 7 (1964) 120–126.","status":"resolved","year":"1964"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":"CA-MG","before":"CA-MG-SR","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SR":0.0},"phases":["Mg2Ca-C14"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["reference-dependent quantity without a resolved reference state","state:reference_state"],"state_fully_specified":false,"system_is_state_subsystem":true},"fold_lpo":3,"fold_lso":0,"id":"ORC-RZCL7BY52Z.730e2e","locator":{"ref":"sha256:a7cbade1719f2946/p4/tab-2","row":13},"merged_ids":["ORC-RZCL7BY52Z.9c2380"],"observation_type":"equilibrium_property","origin":{"basis":"cited_work_abstract_experimental","class":"experimental","own_work_of_paper":false},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SR":0.0},"paper":"doi:10.1016/j.jallcom.2005.09.076","paper_id":"doi:10.1016/j.jallcom.2005.09.076","phases":[{"label":"Mg2Ca-C14"}],"pid":"sha256:a7cbade1719f2946/p4/tab-2/r13#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"HM_FORM","property_group":"formation","property_printed":"Enthalpy of formation","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","reference_state":{"CA":{"phase":"printed:none"},"MG":{"phase":"printed:none"}},"reference_state_stored":{"CA":{"phase":"printed:none"},"MG":{"phase":"printed:none"},"SR":{"phase":"printed:none"}},"source_system":"CA-MG-SR","system":"CA-MG","temperature_K":255.5,"temperature_basis":"printed_range","temperature_printed":"0 K","temperature_range_K":{"max":511.0,"min":0.0,"printed":"0 K"},"temperature_uncertainty":{"basis":"printed_range","value":255.5},"tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.7295},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":3.5,"sigma_method":{"basis":"calibrated","ci95":[2.41122,4.298262],"class":"unknown","entry":"value_types/HM_FORM/classes/unknown","floor":3.5,"floor_unit":"kJ/mol-atom","n_pairs":290,"value":3.5},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"kJ/mol-atom","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol-atom","unit_basis":"printed_unit","unit_printed":"kJ/mol of atom","unit_stored":"J/mol-atom","value":-14.59,"value_printed":-14.59,"value_stored":-14590.0},{"chemical_system":"CA-MG","conditions":{"kind":"own_work_origin_unspecified"},"corrections":[{"after":"CA-MG","before":"CA-MG-SR","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.333333,"SR":0.0},"phases":["Ca2Mg-C14"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","dft_outlier_unexplained":true,"espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["reference-dependent quantity without a resolved reference state","state:reference_state"],"state_fully_specified":false,"system_is_state_subsystem":true},"fold_lpo":3,"fold_lso":0,"id":"ORC-OOZ4JZME4Z.5bf5d2","locator":{"ref":"sha256:a7cbade1719f2946/p4/tab-2","row":16},"merged_ids":["ORC-OOZ4JZME4Z.9e96e5"],"observation_type":"equilibrium_property","origin":{"basis":"this_work_kind_unstated","class":"unspecified","measured_in":"doi:10.1016/j.jallcom.2005.09.076","own_work_of_paper":true},"overall_composition":{"MG":0.333333},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.333333,"SR":0.0},"paper":"doi:10.1016/j.jallcom.2005.09.076","paper_id":"doi:10.1016/j.jallcom.2005.09.076","phases":[{"label":"Ca2Mg-C14"}],"pid":"sha256:a7cbade1719f2946/p4/tab-2/r16#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"HM_FORM","property_group":"formation","property_printed":"Enthalpy of formation","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","reference_state":{"CA":{"phase":"printed:none"},"MG":{"phase":"printed:none"}},"reference_state_stored":{"CA":{"phase":"printed:none"},"MG":{"phase":"printed:none"},"SR":{"phase":"printed:none"}},"source_system":"CA-MG-SR","system":"CA-MG","temperature_K":0.0,"temperature_basis":"printed","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":1.342745},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":3.5,"sigma_method":{"basis":"calibrated","ci95":[2.41122,4.298262],"class":"unknown","entry":"value_types/HM_FORM/classes/unknown","floor":3.5,"floor_unit":"kJ/mol-atom","n_pairs":290,"value":3.5},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":5e-05},"sigma_scatter":null,"unit":"kJ/mol-atom","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol-atom","unit_basis":"printed_unit","unit_printed":"kJ/mol of atom","unit_stored":"J/mol-atom","value":26.8549,"value_printed":26.8549,"value_stored":26854.9},{"chemical_system":"CA-MG","conditions":{"kind":"own_work_origin_unspecified"},"corrections":[{"after":"CA-MG","before":"CA-MG-SR","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.333333,"SR":0.0},"phases":["Ca2Mg-C14"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","system_is_state_subsystem":true},"fold_lpo":3,"fold_lso":0,"id":"ORC-W3LIEBHNAW.8601dd","locator":{"ref":"sha256:a7cbade1719f2946/p4/tab-2","row":16},"merged_ids":["ORC-W3LIEBHNAW.d15aca"],"observation_type":"structural_property","origin":{"basis":"this_work_kind_unstated","class":"unspecified","measured_in":"doi:10.1016/j.jallcom.2005.09.076","own_work_of_paper":true},"overall_composition":{"MG":0.333333},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.333333,"SR":0.0},"paper":"doi:10.1016/j.jallcom.2005.09.076","paper_id":"doi:10.1016/j.jallcom.2005.09.076","phases":[{"label":"Ca2Mg-C14"}],"pid":"sha256:a7cbade1719f2946/p4/tab-2/r16#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_A","property_group":"crystal structure","property_printed":"a","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","source_system":"CA-MG-SR","system":"CA-MG","temperature_K":0.0,"temperature_basis":"printed","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.34435},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.01515,"sigma_method":{"basis":"calibrated","ci95":[0.001793,0.002549],"class":"unknown","entry":"value_types/LATTICE_LENGTH/classes/unknown","floor":0.0022,"floor_unit":"relative (fraction of the value)","n_pairs":586,"value":0.01515},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.0005},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_printed":"Å","unit_stored":"Å","value":6.887,"value_printed":6.887,"value_stored":6.887},{"chemical_system":"CA-MG","conditions":{"kind":"own_work_origin_unspecified"},"corrections":[{"after":"CA-MG","before":"CA-MG-SR","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.333333,"SR":0.0},"phases":["Ca2Mg-C14"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","system_is_state_subsystem":true},"fold_lpo":3,"fold_lso":0,"id":"ORC-W3LIEBHNAW.d0dfe0","locator":{"ref":"sha256:a7cbade1719f2946/p4/tab-2","row":16},"merged_ids":["ORC-W3LIEBHNAW.e43359"],"observation_type":"structural_property","origin":{"basis":"this_work_kind_unstated","class":"unspecified","measured_in":"doi:10.1016/j.jallcom.2005.09.076","own_work_of_paper":true},"overall_composition":{"MG":0.333333},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.333333,"SR":0.0},"paper":"doi:10.1016/j.jallcom.2005.09.076","paper_id":"doi:10.1016/j.jallcom.2005.09.076","phases":[{"label":"Ca2Mg-C14"}],"pid":"sha256:a7cbade1719f2946/p4/tab-2/r16#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_C","property_group":"crystal structure","property_printed":"c","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","source_system":"CA-MG-SR","system":"CA-MG","temperature_K":0.0,"temperature_basis":"printed","temperature_printed":"0 K","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.5418},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.02384,"sigma_method":{"basis":"calibrated","ci95":[0.001793,0.002549],"class":"unknown","entry":"value_types/LATTICE_LENGTH/classes/unknown","floor":0.0022,"floor_unit":"relative (fraction of the value)","n_pairs":586,"value":0.02384},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.0005},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_printed":"Å","unit_stored":"Å","value":10.836,"value_printed":10.836,"value_stored":10.836},{"chemical_system":"CA-MG","conditions":{"kind":"own_work_origin_unspecified"},"corrections":[{"after":"CA-MG","before":"CA-MG-SN","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SN":0.0},"phases":["Mg2Ca"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","system_is_state_subsystem":true},"fold_lpo":2,"fold_lso":0,"id":"ORC-S5GHLNLNUB.356e1d","locator":{"ref":"sha256:aed634b0a5a85226/p4/tab-1","row":6},"observation_type":"structural_property","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"doi:10.1016/j.intermet.2007.10.010","own_work_of_paper":true},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SN":0.0},"paper":"doi:10.1016/j.intermet.2007.10.010","paper_id":"doi:10.1016/j.intermet.2007.10.010","phases":[{"label":"Mg2Ca"}],"pid":"sha256:aed634b0a5a85226/p4/tab-1/r06#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_C","property_group":"crystal structure","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","source_system":"CA-MG-SN","structure":{"pearson_symbol":"hP12","prototype":"MgZn2"},"system":"CA-MG","temperature_K":711.0,"temperature_basis":"printed_bound","temperature_bound":{"op":"<","value_K":711.0},"tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"printed","value":0.007},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.02231,"sigma_method":{"basis":"calibrated","ci95":[0.001793,0.002549],"class":"unknown","entry":"value_types/LATTICE_LENGTH/classes/unknown","floor":0.0022,"floor_unit":"relative (fraction of the value)","n_pairs":586,"value":0.02231},"sigma_printed":{"kind":"plus_minus_coverage_not_stated","taken_as":"1 sigma","value":0.007},"sigma_reading":{"basis":"last_printed_digit","value":0.0005},"sigma_scatter":null,"unit":"not_printed","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"not_printed","value":10.141},{"chemical_system":"CA-MG","conditions":{"kind":"own_work_origin_unspecified"},"corrections":[{"after":"CA-MG","before":"CA-MG-SN","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SN":0.0},"phases":["Mg2Ca"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","system_is_state_subsystem":true},"fold_lpo":2,"fold_lso":0,"id":"ORC-S5GHLNLNUB.5395f3","locator":{"ref":"sha256:aed634b0a5a85226/p4/tab-1","row":6},"observation_type":"structural_property","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"doi:10.1016/j.intermet.2007.10.010","own_work_of_paper":true},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SN":0.0},"paper":"doi:10.1016/j.intermet.2007.10.010","paper_id":"doi:10.1016/j.intermet.2007.10.010","phases":[{"label":"Mg2Ca"}],"pid":"sha256:aed634b0a5a85226/p4/tab-1/r06#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_A","property_group":"crystal structure","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","source_system":"CA-MG-SN","structure":{"pearson_symbol":"hP12","prototype":"MgZn2"},"system":"CA-MG","temperature_K":711.0,"temperature_basis":"printed_bound","temperature_bound":{"op":"<","value_K":711.0},"tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"reading_resolution","value":0.005},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.01371,"sigma_method":{"basis":"calibrated","ci95":[0.001793,0.002549],"class":"unknown","entry":"value_types/LATTICE_LENGTH/classes/unknown","floor":0.0022,"floor_unit":"relative (fraction of the value)","n_pairs":586,"value":0.01371},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_stored":"Å","value":6.23,"value_stored":6.23},{"chemical_system":"CA-MG","conditions":{"kind":"own_work_origin_unspecified"},"corrections":[{"after":"CA-MG","before":"CA-MG-SN","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SN":0.0},"phases":["Mg2Ca"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","system_is_state_subsystem":true},"fold_lpo":2,"fold_lso":0,"id":"ORC-S5GHLNLNUB.6946c1","locator":{"ref":"sha256:aed634b0a5a85226/p4/tab-1","row":6},"observation_type":"structural_property","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"doi:10.1016/j.intermet.2007.10.010","own_work_of_paper":true},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SN":0.0},"paper":"doi:10.1016/j.intermet.2007.10.010","paper_id":"doi:10.1016/j.intermet.2007.10.010","phases":[{"label":"Mg2Ca"}],"pid":"sha256:aed634b0a5a85226/p4/tab-1/r06#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_C","property_group":"crystal structure","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","source_system":"CA-MG-SN","structure":{"pearson_symbol":"hP12","prototype":"MgZn2"},"system":"CA-MG","temperature_K":711.0,"temperature_basis":"printed_bound","temperature_bound":{"op":"<","value_K":711.0},"tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"reading_resolution","value":0.005},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.02233,"sigma_method":{"basis":"calibrated","ci95":[0.001793,0.002549],"class":"unknown","entry":"value_types/LATTICE_LENGTH/classes/unknown","floor":0.0022,"floor_unit":"relative (fraction of the value)","n_pairs":586,"value":0.02233},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"Å","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"Å","unit_stored":"Å","value":10.15,"value_stored":10.15},{"chemical_system":"CA-MG","conditions":{"kind":"own_work_origin_unspecified"},"corrections":[{"after":"CA-MG","before":"CA-MG-SN","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SN":0.0},"phases":["Mg2Ca"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","system_is_state_subsystem":true},"fold_lpo":2,"fold_lso":0,"id":"ORC-S5GHLNLNUB.79a72b","locator":{"ref":"sha256:aed634b0a5a85226/p4/tab-1","row":6},"observation_type":"structural_property","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"doi:10.1016/j.intermet.2007.10.010","own_work_of_paper":true},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SN":0.0},"paper":"doi:10.1016/j.intermet.2007.10.010","paper_id":"doi:10.1016/j.intermet.2007.10.010","phases":[{"label":"Mg2Ca"}],"pid":"sha256:aed634b0a5a85226/p4/tab-1/r06#structural_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"LATTICE_A","property_group":"crystal structure","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"general_table","source_system":"CA-MG-SN","structure":{"pearson_symbol":"hP12","prototype":"MgZn2"},"system":"CA-MG","temperature_K":711.0,"temperature_basis":"printed_bound","temperature_bound":{"op":"<","value_K":711.0},"tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"printed","value":0.004},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.01375,"sigma_method":{"basis":"calibrated","ci95":[0.001793,0.002549],"class":"unknown","entry":"value_types/LATTICE_LENGTH/classes/unknown","floor":0.0022,"floor_unit":"relative (fraction of the value)","n_pairs":586,"value":0.01375},"sigma_printed":{"kind":"plus_minus_coverage_not_stated","taken_as":"1 sigma","value":0.004},"sigma_reading":{"basis":"last_printed_digit","value":0.0005},"sigma_scatter":null,"unit":"not_printed","value_type":"LATTICE_LENGTH"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"not_printed","value":6.251},{"chemical_system":"CA-MG","conditions":{"kind":"not_applicable_own_calculation"},"corrections":[{"after":298.15,"before":298.0,"evidence":{"printed":"298"},"field":"temperature_K","gate":"G1","rule":"standard_reference_temperature"},{"after":"CA-MG","before":"CA-MG-SN","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SN":0.0},"phases":["Mg2Ca"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"dft","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["reference-dependent quantity without a resolved reference state"],"state_fully_specified":false,"system_is_state_subsystem":true},"fold_lpo":2,"fold_lso":0,"id":"ORC-VKZEPFIM3R","locator":{"ref":"sha256:aed634b0a5a85226/p5/tab-2","row":1},"method":"first-principles","method_basis":"printed in the table row/column","observation_type":"equilibrium_property","origin":{"basis":"this_work+label_first_principles","class":"computed","measured_in":"doi:10.1016/j.intermet.2007.10.010","own_work_of_paper":true},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SN":0.0},"paper":"doi:10.1016/j.intermet.2007.10.010","paper_id":"doi:10.1016/j.intermet.2007.10.010","phases":[{"label":"Mg2Ca"}],"pid":"sha256:aed634b0a5a85226/p5/tab-2/r01#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"HM_FORM","property_group":"formation","property_printed":"ΔfH298","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"confirmed_pro","readers":["claude-opus-5.5","gemini-3.1-pro-preview","text_layer"],"record_kind":"general_table","reference_state":{"CA":{"phase":"printed:SER"},"MG":{"phase":"printed:SER"}},"reference_state_stored":{"CA":{"phase":"printed:SER"},"MG":{"phase":"printed:SER"},"SN":{"phase":"printed:SER"}},"source_system":"CA-MG-SN","system":"CA-MG","temperature_K":298.15,"temperature_K_stored":298.0,"temperature_basis":"printed","temperature_printed":"298","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.6185},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":8.395,"sigma_method":{"basis":"calibrated","ci95":[6.672,9.877],"class":"dft","entry":"dft/literature/strata/metal","floor":8.395,"floor_unit":"kJ/mol-atom","n_pairs":230,"stratum":"literature/metal","value":8.395},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"kJ/mol-atom","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol-atom","unit_basis":"printed_unit","unit_printed":"kJ/mol atom","unit_stored":"J/mol-atom","value":-12.37,"value_printed":-12.37,"value_stored":-12370.0},{"chemical_system":"CA-MG","cited_sources":[{"first_author":"Agarwal","kind":"unknown","label":"14","reference":"Agarwal R, Lee JJ, Lukas H-L, Sommer F. Z Metallkd 1995;86:103e8.","status":"resolved","year":"1995"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":298.15,"before":298.0,"evidence":{"printed":"298"},"field":"temperature_K","gate":"G1","rule":"standard_reference_temperature"},{"after":"CA-MG","before":"CA-MG-SN","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SN":0.0},"phases":["Mg2Ca"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["reference-dependent quantity without a resolved reference state"],"state_fully_specified":false,"system_is_state_subsystem":true},"fold_lpo":2,"fold_lso":0,"id":"ORC-XFTNAJZ22Q","locator":{"ref":"sha256:aed634b0a5a85226/p5/tab-2","row":2},"method":"Calphad","method_basis":"printed in the table row/column","model_unlinked_reason":"reporting paper's own calculation, but no TDB linked to the table","observation_type":"equilibrium_property","origin":{"basis":"printed_source_other_calculation","class":"model_value","own_work_of_paper":false},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SN":0.0},"paper":"doi:10.1016/j.intermet.2007.10.010","paper_id":"doi:10.1016/j.intermet.2007.10.010","phases":[{"label":"Mg2Ca"}],"pid":"sha256:aed634b0a5a85226/p5/tab-2/r02#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"HM_FORM","property_group":"formation","property_printed":"ΔfH298","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"confirmed_pro","readers":["claude-opus-5.5","gemini-3.1-pro-preview","text_layer"],"record_kind":"general_table","reference_state":{"CA":{"phase":"printed:SER"},"MG":{"phase":"printed:SER"}},"reference_state_stored":{"CA":{"phase":"printed:SER"},"MG":{"phase":"printed:SER"},"SN":{"phase":"printed:SER"}},"source_system":"CA-MG-SN","system":"CA-MG","temperature_K":298.15,"temperature_K_stored":298.0,"temperature_basis":"printed","temperature_printed":"298","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.6425},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":3.9,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.54664],"class":"model_calculated","entry":"model/HM_FORM","floor":3.9,"floor_unit":"kJ/mol-atom","n_pairs":2045,"value":3.9},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"kJ/mol-atom","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol-atom","unit_basis":"printed_unit","unit_printed":"kJ/mol atom","unit_stored":"J/mol-atom","value":-12.85,"value_printed":-12.85,"value_stored":-12850.0},{"chemical_system":"CA-MG","conditions":{"kind":"not_applicable_own_calculation"},"corrections":[{"after":298.15,"before":298.0,"evidence":{"printed":"298"},"field":"temperature_K","gate":"G1","rule":"standard_reference_temperature"},{"after":"CA-MG","before":"CA-MG-SN","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SN":0.0},"phases":["Mg2Ca"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["reference-dependent quantity without a resolved reference state"],"state_fully_specified":false,"system_is_state_subsystem":true},"fold_lpo":2,"fold_lso":0,"id":"ORC-S4AJ47FAEA","locator":{"ref":"sha256:aed634b0a5a85226/p5/tab-2","row":3},"method":"Calphad","method_basis":"printed in the table row/column","model_unlinked_reason":"reporting paper's own calculation, but no TDB linked to the table","observation_type":"equilibrium_property","origin":{"basis":"this_work+label_names_calculation","class":"model_value","measured_in":"doi:10.1016/j.intermet.2007.10.010","own_work_of_paper":true},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SN":0.0},"paper":"doi:10.1016/j.intermet.2007.10.010","paper_id":"doi:10.1016/j.intermet.2007.10.010","phases":[{"label":"Mg2Ca"}],"pid":"sha256:aed634b0a5a85226/p5/tab-2/r03#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"HM_FORM","property_group":"formation","property_printed":"ΔfH298","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"confirmed_pro","readers":["claude-opus-5.5","gemini-3.1-pro-preview","text_layer"],"record_kind":"general_table","reference_state":{"CA":{"phase":"printed:SER"},"MG":{"phase":"printed:SER"}},"reference_state_stored":{"CA":{"phase":"printed:SER"},"MG":{"phase":"printed:SER"},"SN":{"phase":"printed:SER"}},"source_system":"CA-MG-SN","system":"CA-MG","temperature_K":298.15,"temperature_K_stored":298.0,"temperature_basis":"printed","temperature_printed":"298","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.639},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":3.9,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.54664],"class":"model_calculated","entry":"model/HM_FORM","floor":3.9,"floor_unit":"kJ/mol-atom","n_pairs":2045,"value":3.9},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"kJ/mol-atom","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol-atom","unit_basis":"printed_unit","unit_printed":"kJ/mol atom","unit_stored":"J/mol-atom","value":-12.78,"value_printed":-12.78,"value_stored":-12780.0},{"chemical_system":"CA-MG","cited_sources":[{"doi":"10.1016/0001-6160(64)90056-2","first_author":"King","kind":"assessment","label":"31","paper":"doi:10.1016/0001-6160(64)90056-2","reference":"King RC, Kleppa OJ. Acta Metall 1964;12:87e97.","status":"resolved","year":"1964"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":298.15,"before":298.0,"evidence":{"printed":"298"},"field":"temperature_K","gate":"G1","rule":"standard_reference_temperature"},{"after":"CA-MG","before":"CA-MG-SN","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SN":0.0},"phases":["Mg2Ca"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["reference-dependent quantity without a resolved reference state"],"state_fully_specified":false,"system_is_state_subsystem":true},"fold_lpo":2,"fold_lso":0,"id":"ORC-UWGNHDPS6J","locator":{"ref":"sha256:aed634b0a5a85226/p5/tab-2","row":4},"method":"experimental","method_basis":"printed in the table row/column","observation_type":"equilibrium_property","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SN":0.0},"paper":"doi:10.1016/j.intermet.2007.10.010","paper_id":"doi:10.1016/j.intermet.2007.10.010","phases":[{"label":"Mg2Ca"}],"pid":"sha256:aed634b0a5a85226/p5/tab-2/r04#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"HM_FORM","property_group":"formation","property_printed":"ΔfH298","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"confirmed_pro","readers":["claude-opus-5.5","gemini-3.1-pro-preview","text_layer"],"record_kind":"general_table","reference_state":{"CA":{"phase":"printed:SER"},"MG":{"phase":"printed:SER"}},"reference_state_stored":{"CA":{"phase":"printed:SER"},"MG":{"phase":"printed:SER"},"SN":{"phase":"printed:SER"}},"source_system":"CA-MG-SN","system":"CA-MG","temperature_K":298.15,"temperature_K_stored":298.0,"temperature_basis":"printed","temperature_printed":"298","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.675},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.1,"sigma_method":{"basis":"cleaned_below_threshold","ci95":[1.991877,9.330373],"class":"experimental_unspecified","entry":"value_types/HM_FORM/classes/experimental_unspecified","floor":4.1,"floor_unit":"kJ/mol-atom","n_pairs":29,"prior_source":"kubaschewski","value":4.1},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"kJ/mol-atom","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol-atom","unit_basis":"printed_unit","unit_printed":"kJ/mol atom","unit_stored":"J/mol-atom","value":-13.5,"value_printed":-13.5,"value_stored":-13500.0},{"chemical_system":"CA-MG","cited_sources":[{"first_author":"Gartner","kind":"assessment","label":"32","reference":"Gartner GJ, Thesis, Ames, Iowa: Iowa State University; 1965.","status":"resolved","year":"1965"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":298.15,"before":298.0,"evidence":{"printed":"298"},"field":"temperature_K","gate":"G1","rule":"standard_reference_temperature"},{"after":"CA-MG","before":"CA-MG-SN","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SN":0.0},"phases":["Mg2Ca"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["reference-dependent quantity without a resolved reference state"],"state_fully_specified":false,"system_is_state_subsystem":true},"fold_lpo":2,"fold_lso":0,"id":"ORC-7O4OZG2DBF","locator":{"ref":"sha256:aed634b0a5a85226/p5/tab-2","row":5},"method":"experimental","method_basis":"printed in the table row/column","observation_type":"equilibrium_property","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SN":0.0},"paper":"doi:10.1016/j.intermet.2007.10.010","paper_id":"doi:10.1016/j.intermet.2007.10.010","phases":[{"label":"Mg2Ca"}],"pid":"sha256:aed634b0a5a85226/p5/tab-2/r05#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"HM_FORM","property_group":"formation","property_printed":"ΔfH298","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"confirmed_pro","readers":["claude-opus-5.5","gemini-3.1-pro-preview","text_layer"],"record_kind":"general_table","reference_state":{"CA":{"phase":"printed:SER"},"MG":{"phase":"printed:SER"}},"reference_state_stored":{"CA":{"phase":"printed:SER"},"MG":{"phase":"printed:SER"},"SN":{"phase":"printed:SER"}},"source_system":"CA-MG-SN","system":"CA-MG","temperature_K":298.15,"temperature_K_stored":298.0,"temperature_basis":"printed","temperature_printed":"298","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.635},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.1,"sigma_method":{"basis":"cleaned_below_threshold","ci95":[1.991877,9.330373],"class":"experimental_unspecified","entry":"value_types/HM_FORM/classes/experimental_unspecified","floor":4.1,"floor_unit":"kJ/mol-atom","n_pairs":29,"prior_source":"kubaschewski","value":4.1},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"kJ/mol-atom","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol-atom","unit_basis":"printed_unit","unit_printed":"kJ/mol atom","unit_stored":"J/mol-atom","value":-12.7,"value_printed":-12.7,"value_stored":-12700.0},{"chemical_system":"CA-MG","cited_sources":[{"first_author":"Davison","kind":"assessment","label":"33","reference":"Davison JE, Smith JF. Trans Met Soc AIME 1968;242:2045e9. 315","status":"resolved","year":"1968"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":298.15,"before":298.0,"evidence":{"printed":"298"},"field":"temperature_K","gate":"G1","rule":"standard_reference_temperature"},{"after":"CA-MG","before":"CA-MG-SN","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SN":0.0},"phases":["Mg2Ca"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["reference-dependent quantity without a resolved reference state"],"state_fully_specified":false,"system_is_state_subsystem":true},"fold_lpo":2,"fold_lso":0,"id":"ORC-JZ4L4Q7U2N","locator":{"ref":"sha256:aed634b0a5a85226/p5/tab-2","row":6},"method":"experimental","method_basis":"printed in the table row/column","observation_type":"equilibrium_property","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SN":0.0},"paper":"doi:10.1016/j.intermet.2007.10.010","paper_id":"doi:10.1016/j.intermet.2007.10.010","phases":[{"label":"Mg2Ca"}],"pid":"sha256:aed634b0a5a85226/p5/tab-2/r06#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"HM_FORM","property_group":"formation","property_printed":"ΔfH298","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"confirmed_pro","readers":["claude-opus-5.5","gemini-3.1-pro-preview","text_layer"],"record_kind":"general_table","reference_state":{"CA":{"phase":"printed:SER"},"MG":{"phase":"printed:SER"}},"reference_state_stored":{"CA":{"phase":"printed:SER"},"MG":{"phase":"printed:SER"},"SN":{"phase":"printed:SER"}},"source_system":"CA-MG-SN","system":"CA-MG","temperature_K":298.15,"temperature_K_stored":298.0,"temperature_basis":"printed","temperature_printed":"298","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":0.65},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.1,"sigma_method":{"basis":"cleaned_below_threshold","ci95":[1.991877,9.330373],"class":"experimental_unspecified","entry":"value_types/HM_FORM/classes/experimental_unspecified","floor":4.1,"floor_unit":"kJ/mol-atom","n_pairs":29,"prior_source":"kubaschewski","value":4.1},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"kJ/mol-atom","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol-atom","unit_basis":"printed_unit","unit_printed":"kJ/mol atom","unit_stored":"J/mol-atom","value":-13.0,"value_printed":-13.0,"value_stored":-13000.0},{"chemical_system":"CA-MG","cited_sources":[{"first_author":"Arroyave","kind":"unknown","label":"10","reference":"Arroyave R, Liu Z-K. Phys Rev B Condens Matter 2006;74:1e15.","status":"resolved","year":"2006"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":298.15,"before":298.0,"evidence":{"printed":"298"},"field":"temperature_K","gate":"G1","rule":"standard_reference_temperature"},{"after":"CA-MG","before":"CA-MG-SN","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SN":0.0},"phases":["Mg2Ca"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"dft","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["state:computation_context"],"state_fully_specified":false,"system_is_state_subsystem":true},"fold_lpo":2,"fold_lso":0,"id":"ORC-GQQ6O2FOLK","locator":{"ref":"sha256:aed634b0a5a85226/p5/tab-2","row":7},"method":"first-principles","method_basis":"printed in the table row/column","observation_type":"equilibrium_property","origin":{"basis":"printed_source_other_calculation","class":"computed","own_work_of_paper":false},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SN":0.0},"paper":"doi:10.1016/j.intermet.2007.10.010","paper_id":"doi:10.1016/j.intermet.2007.10.010","phases":[{"label":"Mg2Ca"}],"pid":"sha256:aed634b0a5a85226/p5/tab-2/r07#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"SM","property_group":"heat capacity / entropy / enthalpy","property_printed":"S298","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"confirmed_pro","readers":["claude-opus-5.5","gemini-3.1-pro-preview","text_layer"],"record_kind":"general_table","source_system":"CA-MG-SN","system":"CA-MG","temperature_K":298.15,"temperature_K_stored":298.0,"temperature_basis":"printed","temperature_printed":"298","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":1.8105},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":1.0,"sigma_method":{"basis":"prior","class":"dft","entry":"dft/priors/S_ABS","floor":1.0,"floor_unit":"J/K/mol","value":1.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"J/mol-atom/K","value_type":"S_ABS"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"J/mol-atom/K","unit_printed":"J/mol atom/K","value":36.21,"value_printed":36.21},{"chemical_system":"CA-MG","cited_sources":[{"first_author":"Agarwal","kind":"unknown","label":"14","reference":"Agarwal R, Lee JJ, Lukas H-L, Sommer F. Z Metallkd 1995;86:103e8.","status":"resolved","year":"1995"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":298.15,"before":298.0,"evidence":{"printed":"298"},"field":"temperature_K","gate":"G1","rule":"standard_reference_temperature"},{"after":"CA-MG","before":"CA-MG-SN","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SN":0.0},"phases":["Mg2Ca"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","system_is_state_subsystem":true},"fold_lpo":2,"fold_lso":0,"id":"ORC-NGIRKMPOWN","locator":{"ref":"sha256:aed634b0a5a85226/p5/tab-2","row":8},"method":"Calphad","method_basis":"printed in the table row/column","model_unlinked_reason":"reporting paper's own calculation, but no TDB linked to the table","observation_type":"equilibrium_property","origin":{"basis":"printed_source_other_calculation","class":"model_value","own_work_of_paper":false},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SN":0.0},"paper":"doi:10.1016/j.intermet.2007.10.010","paper_id":"doi:10.1016/j.intermet.2007.10.010","phases":[{"label":"Mg2Ca"}],"pid":"sha256:aed634b0a5a85226/p5/tab-2/r08#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"SM","property_group":"heat capacity / entropy / enthalpy","property_printed":"S298","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"confirmed_pro","readers":["claude-opus-5.5","gemini-3.1-pro-preview","text_layer"],"record_kind":"general_table","source_system":"CA-MG-SN","system":"CA-MG","temperature_K":298.15,"temperature_K_stored":298.0,"temperature_basis":"printed","temperature_printed":"298","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":1.624},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":1.0,"sigma_method":{"basis":"prior","ci95":null,"class":"model_calculated","entry":"model/S_ABS","floor":1.0,"floor_unit":"J/K/mol","n_pairs":260,"value":1.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"J/mol-atom/K","value_type":"S_ABS"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"J/mol-atom/K","unit_printed":"J/mol atom/K","value":32.48,"value_printed":32.48},{"chemical_system":"CA-MG","conditions":{"kind":"not_applicable_own_calculation"},"corrections":[{"after":298.15,"before":298.0,"evidence":{"printed":"298"},"field":"temperature_K","gate":"G1","rule":"standard_reference_temperature"},{"after":"CA-MG","before":"CA-MG-SN","evidence":{"basis":"phase_formula","overall_composition":{"MG":0.666667,"SN":0.0},"phases":["Mg2Ca"]},"field":"system","gate":"A1","rule":"system_of_the_state"}],"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","system_is_state_subsystem":true},"fold_lpo":2,"fold_lso":0,"id":"ORC-WASZNJLU2C","locator":{"ref":"sha256:aed634b0a5a85226/p5/tab-2","row":9},"method":"Calphad","method_basis":"printed in the table row/column","model_unlinked_reason":"reporting paper's own calculation, but no TDB linked to the table","observation_type":"equilibrium_property","origin":{"basis":"this_work+label_names_calculation","class":"model_value","measured_in":"doi:10.1016/j.intermet.2007.10.010","own_work_of_paper":true},"overall_composition":{"MG":0.666667},"overall_composition_basis":"from_formula","overall_composition_stored":{"MG":0.666667,"SN":0.0},"paper":"doi:10.1016/j.intermet.2007.10.010","paper_id":"doi:10.1016/j.intermet.2007.10.010","phases":[{"label":"Mg2Ca"}],"pid":"sha256:aed634b0a5a85226/p5/tab-2/r09#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"SM","property_group":"heat capacity / entropy / enthalpy","property_printed":"S298","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"confirmed_pro","readers":["claude-opus-5.5","gemini-3.1-pro-preview","text_layer"],"record_kind":"general_table","source_system":"CA-MG-SN","system":"CA-MG","temperature_K":298.15,"temperature_K_stored":298.0,"temperature_basis":"printed","temperature_printed":"298","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":1.628},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":1.0,"sigma_method":{"basis":"prior","ci95":null,"class":"model_calculated","entry":"model/S_ABS","floor":1.0,"floor_unit":"J/K/mol","n_pairs":260,"value":1.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"J/mol-atom/K","value_type":"S_ABS"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"J/mol-atom/K","unit_printed":"J/mol atom/K","value":32.56,"value_printed":32.56},{"chemical_system":"CA-MG","cited_sources":[{"first_author":"Paris","kind":"experimental","label":"44","reference":"R. Paris, Publ. Sci. et Tech Ministere Air 45 (1934) 39–41.","status":"resolved","year":"1934"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":1,"fold_lso":0,"id":"ORC-XSACUSTWGE","locator":{"ref":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9","row":2},"observation_type":"phase_transition","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"ref:e8dda5999af4d80d","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2005.08.006","paper_id":"doi:10.1016/j.calphad.2005.08.006","phases":[{"label":"L","mapping_confidence":"proposed","model_phase":"LIQUID"},{"label":"Mg2Ca"}],"pid":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9/r-unplaced-3fb5a4a1#transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","reaction":{"printed":"L <-> Mg2Ca","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":998.0,"temperature_printed":"998.0","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"congruent melting","transition_kind_printed":"Congruent","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":16.0,"sigma_method":{"basis":"calibrated","ci95":[10.483565,26.208913],"class":"unknown","entry":"value_types/T_TRANSITION/classes/unknown","floor":16.0,"floor_unit":"K","n_pairs":274,"value":16.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":998.0},{"chemical_system":"CA-MG","cited_sources":[{"doi":"10.1002/zaac.19110700126","first_author":"Baar","kind":"experimental","label":"43","paper":"doi:10.1002/zaac.19110700126","reference":"N. Baar, Z. Anorg. Chem. 70 (1911) 362–366.","status":"resolved","year":"1911"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":1,"fold_lso":0,"id":"ORC-DAYTJTQVIY","locator":{"ref":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9","row":1},"observation_type":"phase_transition","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"doi:10.1002/zaac.19110700126","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2005.08.006","paper_id":"doi:10.1016/j.calphad.2005.08.006","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.667},"composition_source":"printed","phase":"L"}],"phases":[{"label":"L","mapping_confidence":"proposed","model_phase":"LIQUID"},{"label":"Mg2Ca"}],"pid":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9/r-unplaced-48633c95#transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","reaction":{"printed":"L <-> Mg2Ca","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":987.0,"temperature_printed":"987.0","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"congruent melting","transition_kind_printed":"Congruent","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":0.0005},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":16.0,"sigma_method":{"basis":"calibrated","ci95":[10.483565,26.208913],"class":"unknown","entry":"value_types/T_TRANSITION/classes/unknown","floor":16.0,"floor_unit":"K","n_pairs":274,"value":16.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":987.0},{"chemical_system":"CA-MG","cited_sources":[{"first_author":"Vosskuhler","kind":"experimental","label":"49","reference":"H. Vosskühler, Z. Metallkd. 29 (1937) 236–237.","status":"resolved","year":"1937"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":1,"fold_lso":0,"id":"ORC-QDMTBLKGIR","locator":{"ref":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9","row":3},"observation_type":"phase_transition","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"ref:b404eeca4d5a0cc0","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2005.08.006","paper_id":"doi:10.1016/j.calphad.2005.08.006","phases":[{"label":"L","mapping_confidence":"proposed","model_phase":"LIQUID"},{"label":"Mg2Ca"}],"pid":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9/r01#transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","reaction":{"printed":"L <-> Mg2Ca","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":987.0,"temperature_printed":"987.0","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"congruent melting","transition_kind_printed":"Congruent","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":16.0,"sigma_method":{"basis":"calibrated","ci95":[10.483565,26.208913],"class":"unknown","entry":"value_types/T_TRANSITION/classes/unknown","floor":16.0,"floor_unit":"K","n_pairs":274,"value":16.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":987.0},{"chemical_system":"CA-MG","conditions":{"kind":"paper_context_not_extracted","paper":"doi:10.1016/j.calphad.2005.08.006"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":1,"fold_lso":0,"id":"ORC-VKFIZVK6PK","locator":{"ref":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9","row":4},"observation_type":"phase_transition","origin":{"basis":"this_work_uncited_beside_cited_rows+title_experimental","class":"experimental","measured_in":"doi:10.1016/j.calphad.2005.08.006","measured_in_basis":"no_citation_printed","own_work_of_paper":true},"paper":"doi:10.1016/j.calphad.2005.08.006","paper_id":"doi:10.1016/j.calphad.2005.08.006","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.667},"composition_source":"printed","phase":"L"}],"phases":[{"label":"L","mapping_confidence":"proposed","model_phase":"LIQUID"},{"label":"Mg2Ca"}],"pid":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9/r02#transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","reaction":{"printed":"L <-> Mg2Ca","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":984.6,"temperature_printed":"984.6","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"congruent melting","transition_kind_printed":"Congruent","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":0.0005},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":16.0,"sigma_method":{"basis":"calibrated","ci95":[10.483565,26.208913],"class":"unknown","entry":"value_types/T_TRANSITION/classes/unknown","floor":16.0,"floor_unit":"K","n_pairs":274,"value":16.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":984.6},{"chemical_system":"CA-MG","cited_sources":[{"doi":"10.1002/zaac.19110700126","first_author":"Baar","kind":"experimental","label":"43","paper":"doi:10.1002/zaac.19110700126","reference":"N. Baar, Z. Anorg. Chem. 70 (1911) 362–366.","status":"resolved","year":"1911"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":1,"fold_lso":0,"id":"ORC-OZEEL6CKTO","locator":{"ref":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9","row":5},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"doi:10.1002/zaac.19110700126","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2005.08.006","paper_id":"doi:10.1016/j.calphad.2005.08.006","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.309},"composition_source":"printed","phase":"L"}],"phases":[{"label":"L"},{"label":"Mg2Ca"},{"label":"Ca-fcc"}],"pid":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9/r03#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L <-> Mg2Ca + Ca-fcc","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":719.0,"temperature_printed":"719.0","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":0.0005},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":719.0},{"chemical_system":"CA-MG","cited_sources":[{"first_author":"Paris","kind":"experimental","label":"44","reference":"R. Paris, Publ. Sci. et Tech Ministere Air 45 (1934) 39–41.","status":"resolved","year":"1934"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":1,"fold_lso":0,"id":"ORC-U44TWHOMI2","locator":{"ref":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9","row":6},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"ref:e8dda5999af4d80d","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2005.08.006","paper_id":"doi:10.1016/j.calphad.2005.08.006","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.266},"composition_source":"printed","phase":"L"}],"phases":[{"label":"L"},{"label":"Mg2Ca"},{"label":"Ca-fcc"}],"pid":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9/r04#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L <-> Mg2Ca + Ca-fcc","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":733.0,"temperature_printed":"733.0","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":0.0005},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":733.0},{"chemical_system":"CA-MG","cited_sources":[{"doi":"10.1002/zaac.19472550102","first_author":"Klemm","kind":"experimental","label":"46","paper":"doi:10.1002/zaac.19472550102","reference":"W. Klemm, F. Dinkelacker, Z. Anorg. Chem. 255 (1947) 2–12.","status":"resolved","year":"1947"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":1,"fold_lso":0,"id":"ORC-4FRXLU32H4","locator":{"ref":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9","row":7},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"doi:10.1002/zaac.19472550102","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2005.08.006","paper_id":"doi:10.1016/j.calphad.2005.08.006","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.27},"composition_source":"printed","phase":"L"}],"phases":[{"label":"L"},{"label":"Mg2Ca"},{"label":"Ca-fcc"}],"pid":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9/r05#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L <-> Mg2Ca + Ca-fcc","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":718.0,"temperature_printed":"718.0","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":0.005},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":718.0},{"chemical_system":"CA-MG","cited_sources":[{"first_author":"Vosskuhler","kind":"experimental","label":"49","reference":"H. Vosskühler, Z. Metallkd. 29 (1937) 236–237.","status":"resolved","year":"1937"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":1,"fold_lso":0,"id":"ORC-N43HYLHTXD","locator":{"ref":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9","row":8},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"ref:b404eeca4d5a0cc0","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2005.08.006","paper_id":"doi:10.1016/j.calphad.2005.08.006","phases":[{"label":"L"},{"label":"Mg2Ca"},{"label":"Ca-fcc"}],"pid":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9/r06#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L <-> Mg2Ca + Ca-fcc","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":718.0,"temperature_printed":"718.0","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":718.0},{"chemical_system":"CA-MG","conditions":{"kind":"paper_context_not_extracted","paper":"doi:10.1016/j.calphad.2005.08.006"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":1,"fold_lso":0,"id":"ORC-PEKSTZTHPN","locator":{"ref":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9","row":9},"observation_type":"invariant_reaction","origin":{"basis":"this_work_uncited_beside_cited_rows+title_experimental","class":"experimental","measured_in":"doi:10.1016/j.calphad.2005.08.006","measured_in_basis":"no_citation_printed","own_work_of_paper":true},"paper":"doi:10.1016/j.calphad.2005.08.006","paper_id":"doi:10.1016/j.calphad.2005.08.006","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.288},"composition_source":"printed","phase":"L"}],"phases":[{"label":"L"},{"label":"Mg2Ca"},{"label":"Ca-fcc"}],"pid":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9/r07#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L <-> Mg2Ca + Ca-fcc","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":719.0,"temperature_printed":"719.0","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":0.0005},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":719.0},{"chemical_system":"CA-MG","cited_sources":[{"doi":"10.1002/zaac.19110700126","first_author":"Baar","kind":"experimental","label":"43","paper":"doi:10.1002/zaac.19110700126","reference":"N. Baar, Z. Anorg. Chem. 70 (1911) 362–366.","status":"resolved","year":"1911"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":1,"fold_lso":0,"id":"ORC-VVGEBTSX77","locator":{"ref":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9","row":10},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"doi:10.1002/zaac.19110700126","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2005.08.006","paper_id":"doi:10.1016/j.calphad.2005.08.006","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.878},"composition_source":"printed","phase":"L"}],"phases":[{"label":"L"},{"label":"Mg2Ca"},{"label":"Mg-hcp"}],"pid":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9/r08#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L <-> Mg2Ca + Mg-hcp","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":787.0,"temperature_printed":"787.0","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":0.0005},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":787.0},{"chemical_system":"CA-MG","cited_sources":[{"first_author":"Paris","kind":"experimental","label":"44","reference":"R. Paris, Publ. Sci. et Tech Ministere Air 45 (1934) 39–41.","status":"resolved","year":"1934"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":1,"fold_lso":0,"id":"ORC-OGF3TUDW4L","locator":{"ref":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9","row":11},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"ref:e8dda5999af4d80d","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2005.08.006","paper_id":"doi:10.1016/j.calphad.2005.08.006","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.886},"composition_source":"printed","phase":"L"}],"phases":[{"label":"L"},{"label":"Mg2Ca"},{"label":"Mg-hcp"}],"pid":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9/r09#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L <-> Mg2Ca + Mg-hcp","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":798.0,"temperature_printed":"798.0","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":0.0005},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":798.0},{"chemical_system":"CA-MG","cited_sources":[{"first_author":"Haughton","kind":"experimental","label":"45","reference":"J.L. Haughton, J. Inst. Met. 61 (1937) 241–246.","status":"resolved","year":"1937"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":1,"fold_lso":0,"id":"ORC-PFRTDQHQS3","locator":{"ref":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9","row":12},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"ref:c82f2dbc7a5341cb","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2005.08.006","paper_id":"doi:10.1016/j.calphad.2005.08.006","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.895},"composition_source":"printed","phase":"L"}],"phases":[{"label":"L"},{"label":"Mg2Ca"},{"label":"Mg-hcp"}],"pid":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9/r10#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L <-> Mg2Ca + Mg-hcp","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":790.0,"temperature_printed":"790.0","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":0.0005},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":790.0},{"chemical_system":"CA-MG","cited_sources":[{"first_author":"Vosskuhler","kind":"experimental","label":"49","reference":"H. Vosskühler, Z. Metallkd. 29 (1937) 236–237.","status":"resolved","year":"1937"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":1,"fold_lso":0,"id":"ORC-GHU4PPM2PX","locator":{"ref":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9","row":13},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"ref:b404eeca4d5a0cc0","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2005.08.006","paper_id":"doi:10.1016/j.calphad.2005.08.006","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.894},"composition_source":"printed","phase":"L"}],"phases":[{"label":"L"},{"label":"Mg2Ca"},{"label":"Mg-hcp"}],"pid":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9/r11#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L <-> Mg2Ca + Mg-hcp","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":789.0,"temperature_printed":"789.0","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":0.0005},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":789.0},{"chemical_system":"CA-MG","conditions":{"kind":"paper_context_not_extracted","paper":"doi:10.1016/j.calphad.2005.08.006"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":1,"fold_lso":0,"id":"ORC-MICFU7FYF2","locator":{"ref":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9","row":14},"observation_type":"invariant_reaction","origin":{"basis":"this_work_uncited_beside_cited_rows+title_experimental","class":"experimental","measured_in":"doi:10.1016/j.calphad.2005.08.006","measured_in_basis":"no_citation_printed","own_work_of_paper":true},"paper":"doi:10.1016/j.calphad.2005.08.006","paper_id":"doi:10.1016/j.calphad.2005.08.006","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.896},"composition_source":"printed","phase":"L"}],"phases":[{"label":"L"},{"label":"Mg2Ca"},{"label":"Mg-hcp"}],"pid":"doi:10.1016/j.calphad.2005.08.006/p12/tab-9/r12#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L <-> Mg2Ca + Mg-hcp","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":789.8,"temperature_printed":"789.8","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":0.0005},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":789.8},{"chemical_system":"CA-MG","cited_sources":[{"kind":"unknown","label":"14","status":"unresolved"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":4,"fold_lso":0,"id":"ORC-JMI5ESIJCE","locator":{"ref":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii","row":5},"observation_type":"phase_transition","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"unresolved:source:doi:10-1179-cmq-2005-44-4-523#14","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1179/cmq.2005.44.4.523","paper_id":"doi:10.1179/cmq.2005.44.4.523","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.0},"composition_source":"printed","phase":"Ca-bcc"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Ca-bcc","mapping_confidence":"confirmed","model_phase":"BCC_A2","pearson_symbol":"cI2","prototype":"W","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii/r-unplaced-b2da022a#transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","reaction":{"printed":"L -> Ca-bcc","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":1115.0,"temperature_printed":"1,115.00","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"congruent melting","transition_kind_printed":"Melting","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.05,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":0.05},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":16.0,"sigma_method":{"basis":"calibrated","ci95":[10.483565,26.208913],"class":"unknown","entry":"value_types/T_TRANSITION/classes/unknown","floor":16.0,"floor_unit":"K","n_pairs":274,"value":16.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1115.0},{"chemical_system":"CA-MG","cited_sources":[{"kind":"unknown","label":"15","status":"unresolved"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":4,"fold_lso":0,"id":"ORC-DIGV5DPQ2G","locator":{"ref":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii","row":6},"observation_type":"phase_transition","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"unresolved:source:doi:10-1179-cmq-2005-44-4-523#15","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1179/cmq.2005.44.4.523","paper_id":"doi:10.1179/cmq.2005.44.4.523","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.0},"composition_source":"printed","phase":"Ca-bcc"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Ca-bcc","mapping_confidence":"confirmed","model_phase":"BCC_A2","pearson_symbol":"cI2","prototype":"W","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii/r-unplaced-c70498dc#transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","reaction":{"printed":"L -> Ca-bcc","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":1115.0,"temperature_printed":"1,115.00","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"congruent melting","transition_kind_printed":"Melting","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.05,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":0.05},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":16.0,"sigma_method":{"basis":"calibrated","ci95":[10.483565,26.208913],"class":"unknown","entry":"value_types/T_TRANSITION/classes/unknown","floor":16.0,"floor_unit":"K","n_pairs":274,"value":16.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1115.0},{"chemical_system":"CA-MG","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":4,"fold_lso":0,"id":"ORC-BOJ2NBEMLY","locator":{"ref":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii","row":7},"model":"Ma1e4c1b9","observation_type":"phase_transition","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1179/cmq.2005.44.4.523","measured_in_basis":"reporting_paper_own_value","own_work_of_paper":true},"paper":"doi:10.1179/cmq.2005.44.4.523","paper_id":"doi:10.1179/cmq.2005.44.4.523","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.0},"composition_source":"printed","phase":"Ca-bcc"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Ca-bcc","mapping_confidence":"confirmed","model_phase":"BCC_A2","pearson_symbol":"cI2","prototype":"W","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii/r-unplaced-d29a5b5b#transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","reaction":{"printed":"L -> Ca-bcc","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":1115.0,"temperature_printed":"1,115.00","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"congruent melting","transition_kind_printed":"Melting","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.05,"sigma_method":{"basis":"calibrated","ci95":[0.004448,0.004448],"class":"model_calculated","entry":"model/X_PHASE","floor":0.005,"floor_unit":"mole fraction","n_pairs":16730,"value":0.005},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":0.05},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":10.0,"sigma_method":{"basis":"prior","ci95":null,"class":"model_calculated","entry":"model/T_TRANSITION","floor":10.0,"floor_unit":"K","n_pairs":129,"value":10.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1115.0},{"chemical_system":"CA-MG","cited_sources":[{"kind":"unknown","label":"10","status":"unresolved"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":4,"fold_lso":0,"id":"ORC-PIAOXQUWUC","locator":{"ref":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii","row":3},"observation_type":"phase_transition","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"unresolved:source:doi:10-1179-cmq-2005-44-4-523#10","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1179/cmq.2005.44.4.523","paper_id":"doi:10.1179/cmq.2005.44.4.523","phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Mg-hcp","mapping_confidence":"confirmed","model_phase":"HCP_A3","pearson_symbol":"hP2","prototype":"Mg","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii/r-unplaced-e914f25f#transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","reaction":{"printed":"L -> Mg-hcp","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":998.0,"temperature_printed":"998.00","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"congruent melting","transition_kind_printed":"Melting","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":16.0,"sigma_method":{"basis":"calibrated","ci95":[10.483565,26.208913],"class":"unknown","entry":"value_types/T_TRANSITION/classes/unknown","floor":16.0,"floor_unit":"K","n_pairs":274,"value":16.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":998.0},{"chemical_system":"CA-MG","cited_sources":[{"kind":"unknown","label":"14","status":"unresolved"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":{"MG":0.66},"before":{"MG":66.0},"evidence":{"factor":0.01,"printed_header":"Mg mol%"},"field":"phase_compositions[L]","gate":"A1","rule":"composition_basis_read_from_page","visual_check":{"checked":"2026-10-24","image_sha256":"06102c61a3b6ff6c44568c746058c2851a95e116b3ebd4d98b0b7f107cc2a045","page":5,"pdf_sha256_prefix":"a73e5208e2ceb16d","seen":"p5 (printed 526) Table II Mg-Ca: the composition column header is 'Mg mol%' (100.00 for Mg-hcp melting, 66.00 for Mg2Ca, 27.00-28.83 and 88.60-89.61 for the eutectics): the unresolved values are mole percent; divided by 100.","verdict":"corrected"}}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":4,"fold_lso":0,"id":"ORC-MABUAJNTBF","locator":{"ref":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii","row":8},"observation_type":"phase_transition","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"unresolved:source:doi:10-1179-cmq-2005-44-4-523#14","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1179/cmq.2005.44.4.523","paper_id":"doi:10.1179/cmq.2005.44.4.523","phase_compositions":[{"basis":"mole_fraction (converted from mole percent)","basis_stored":"unresolved","composition":{"MG":0.66},"composition_source":"printed","composition_stored":{"MG":66.0},"phase":"L"},{"basis":"mole_fraction","composition":{"MG":0.6666666667},"composition_source":"stoichiometry","phase":"Mg2Ca"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Mg2Ca","mapping_confidence":"confirmed","model_phase":"CAMG2_C14","pearson_symbol":"hP12","prototype":"MgZn2","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii/r01#transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","reaction":{"printed":"L -> Mg2Ca","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":988.0,"temperature_printed":"988.00","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"congruent melting","transition_kind_printed":"Congruent","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-11},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":16.0,"sigma_method":{"basis":"calibrated","ci95":[10.483565,26.208913],"class":"unknown","entry":"value_types/T_TRANSITION/classes/unknown","floor":16.0,"floor_unit":"K","n_pairs":274,"value":16.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":988.0},{"chemical_system":"CA-MG","cited_sources":[{"kind":"unknown","label":"15","status":"unresolved"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":{"MG":0.66},"before":{"MG":66.0},"evidence":{"factor":0.01,"printed_header":"Mg mol%"},"field":"phase_compositions[L]","gate":"A1","rule":"composition_basis_read_from_page","visual_check":{"checked":"2026-10-24","image_sha256":"06102c61a3b6ff6c44568c746058c2851a95e116b3ebd4d98b0b7f107cc2a045","page":5,"pdf_sha256_prefix":"a73e5208e2ceb16d","seen":"p5 (printed 526) Table II Mg-Ca: the composition column header is 'Mg mol%' (100.00 for Mg-hcp melting, 66.00 for Mg2Ca, 27.00-28.83 and 88.60-89.61 for the eutectics): the unresolved values are mole percent; divided by 100.","verdict":"corrected"}}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":4,"fold_lso":0,"id":"ORC-MLYEGC2LIR","locator":{"ref":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii","row":9},"observation_type":"phase_transition","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"unresolved:source:doi:10-1179-cmq-2005-44-4-523#15","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1179/cmq.2005.44.4.523","paper_id":"doi:10.1179/cmq.2005.44.4.523","phase_compositions":[{"basis":"mole_fraction (converted from mole percent)","basis_stored":"unresolved","composition":{"MG":0.66},"composition_source":"printed","composition_stored":{"MG":66.0},"phase":"L"},{"basis":"mole_fraction","composition":{"MG":0.6666666667},"composition_source":"stoichiometry","phase":"Mg2Ca"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Mg2Ca","mapping_confidence":"confirmed","model_phase":"CAMG2_C14","pearson_symbol":"hP12","prototype":"MgZn2","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii/r02#transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","reaction":{"printed":"L -> Mg2Ca","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":984.0,"temperature_printed":"984.00","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"congruent melting","transition_kind_printed":"Congruent","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-11},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":16.0,"sigma_method":{"basis":"calibrated","ci95":[10.483565,26.208913],"class":"unknown","entry":"value_types/T_TRANSITION/classes/unknown","floor":16.0,"floor_unit":"K","n_pairs":274,"value":16.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":984.0},{"chemical_system":"CA-MG","conditions":{"kind":"not_applicable_own_calculation"},"corrections":[{"after":{"MG":0.66},"before":{"MG":66.0},"evidence":{"factor":0.01,"printed_header":"Mg mol%"},"field":"phase_compositions[L]","gate":"A1","rule":"composition_basis_read_from_page","visual_check":{"checked":"2026-10-24","image_sha256":"06102c61a3b6ff6c44568c746058c2851a95e116b3ebd4d98b0b7f107cc2a045","page":5,"pdf_sha256_prefix":"a73e5208e2ceb16d","seen":"p5 (printed 526) Table II Mg-Ca: the composition column header is 'Mg mol%' (100.00 for Mg-hcp melting, 66.00 for Mg2Ca, 27.00-28.83 and 88.60-89.61 for the eutectics): the unresolved values are mole percent; divided by 100.","verdict":"corrected"}}],"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":4,"fold_lso":0,"id":"ORC-64EU7ICZNR","locator":{"ref":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii","row":10},"model":"Ma1e4c1b9","observation_type":"phase_transition","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1179/cmq.2005.44.4.523","measured_in_basis":"reporting_paper_own_value","own_work_of_paper":true},"paper":"doi:10.1179/cmq.2005.44.4.523","paper_id":"doi:10.1179/cmq.2005.44.4.523","phase_compositions":[{"basis":"mole_fraction (converted from mole percent)","basis_stored":"unresolved","composition":{"MG":0.66},"composition_source":"printed","composition_stored":{"MG":66.0},"phase":"L"},{"basis":"mole_fraction","composition":{"MG":0.6666666667},"composition_source":"stoichiometry","phase":"Mg2Ca"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Mg2Ca","mapping_confidence":"confirmed","model_phase":"CAMG2_C14","pearson_symbol":"hP12","prototype":"MgZn2","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii/r03#transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","reaction":{"printed":"L -> Mg2Ca","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":984.58,"temperature_printed":"984.58","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"congruent melting","transition_kind_printed":"Congruent","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.005,"sigma_method":{"basis":"calibrated","ci95":[0.004448,0.004448],"class":"model_calculated","entry":"model/X_PHASE","floor":0.005,"floor_unit":"mole fraction","n_pairs":16730,"value":0.005},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-11},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":10.0,"sigma_method":{"basis":"prior","ci95":null,"class":"model_calculated","entry":"model/T_TRANSITION","floor":10.0,"floor_unit":"K","n_pairs":129,"value":10.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":984.58},{"chemical_system":"CA-MG","cited_sources":[{"kind":"unknown","label":"14","status":"unresolved"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":{"MG":0.27},"before":{"MG":27.0},"evidence":{"factor":0.01,"printed_header":"Mg mol%"},"field":"phase_compositions[L]","gate":"A1","rule":"composition_basis_read_from_page","visual_check":{"checked":"2026-10-24","image_sha256":"06102c61a3b6ff6c44568c746058c2851a95e116b3ebd4d98b0b7f107cc2a045","page":5,"pdf_sha256_prefix":"a73e5208e2ceb16d","seen":"p5 (printed 526) Table II Mg-Ca: the composition column header is 'Mg mol%' (100.00 for Mg-hcp melting, 66.00 for Mg2Ca, 27.00-28.83 and 88.60-89.61 for the eutectics): the unresolved values are mole percent; divided by 100.","verdict":"corrected"}}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":4,"fold_lso":0,"id":"ORC-J662VCYCVD","locator":{"ref":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii","row":14},"observation_type":"invariant_reaction","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"unresolved:source:doi:10-1179-cmq-2005-44-4-523#14","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1179/cmq.2005.44.4.523","paper_id":"doi:10.1179/cmq.2005.44.4.523","phase_compositions":[{"basis":"mole_fraction (converted from mole percent)","basis_stored":"unresolved","composition":{"MG":0.27},"composition_source":"printed","composition_stored":{"MG":27.0},"phase":"L"},{"basis":"mole_fraction","composition":{"MG":0.6666666667},"composition_source":"stoichiometry","phase":"Mg2Ca"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Mg2Ca","mapping_confidence":"confirmed","model_phase":"CAMG2_C14","pearson_symbol":"hP12","prototype":"MgZn2","structure_basis":"mapped_model_phase"},{"label":"Ca-fcc","mapping_confidence":"confirmed","model_phase":"FCC_A1","pearson_symbol":"cF4","prototype":"Cu","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii/r07#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Mg2Ca+ Ca-fcc","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":718.0,"temperature_printed":"718.00","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-11},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":718.0},{"chemical_system":"CA-MG","cited_sources":[{"kind":"unknown","label":"15","status":"unresolved"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":{"MG":0.286},"before":{"MG":28.6},"evidence":{"factor":0.01,"printed_header":"Mg mol%"},"field":"phase_compositions[L]","gate":"A1","rule":"composition_basis_read_from_page","visual_check":{"checked":"2026-10-24","image_sha256":"06102c61a3b6ff6c44568c746058c2851a95e116b3ebd4d98b0b7f107cc2a045","page":5,"pdf_sha256_prefix":"a73e5208e2ceb16d","seen":"p5 (printed 526) Table II Mg-Ca: the composition column header is 'Mg mol%' (100.00 for Mg-hcp melting, 66.00 for Mg2Ca, 27.00-28.83 and 88.60-89.61 for the eutectics): the unresolved values are mole percent; divided by 100.","verdict":"corrected"}}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":4,"fold_lso":0,"id":"ORC-477JRI7OVF","locator":{"ref":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii","row":15},"observation_type":"invariant_reaction","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"unresolved:source:doi:10-1179-cmq-2005-44-4-523#15","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1179/cmq.2005.44.4.523","paper_id":"doi:10.1179/cmq.2005.44.4.523","phase_compositions":[{"basis":"mole_fraction (converted from mole percent)","basis_stored":"unresolved","composition":{"MG":0.286},"composition_source":"printed","composition_stored":{"MG":28.6},"phase":"L"},{"basis":"mole_fraction","composition":{"MG":0.6666666667},"composition_source":"stoichiometry","phase":"Mg2Ca"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Mg2Ca","mapping_confidence":"confirmed","model_phase":"CAMG2_C14","pearson_symbol":"hP12","prototype":"MgZn2","structure_basis":"mapped_model_phase"},{"label":"Ca-fcc","mapping_confidence":"confirmed","model_phase":"FCC_A1","pearson_symbol":"cF4","prototype":"Cu","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii/r08#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Mg2Ca+ Ca-fcc","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":719.0,"temperature_printed":"719.00","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-11},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":719.0},{"chemical_system":"CA-MG","cited_sources":[{"kind":"unknown","label":"10","status":"unresolved"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":{"MG":0.266},"before":{"MG":26.6},"evidence":{"factor":0.01,"printed_header":"Mg mol%"},"field":"phase_compositions[L]","gate":"A1","rule":"composition_basis_read_from_page","visual_check":{"checked":"2026-10-24","image_sha256":"06102c61a3b6ff6c44568c746058c2851a95e116b3ebd4d98b0b7f107cc2a045","page":5,"pdf_sha256_prefix":"a73e5208e2ceb16d","seen":"p5 (printed 526) Table II Mg-Ca: the composition column header is 'Mg mol%' (100.00 for Mg-hcp melting, 66.00 for Mg2Ca, 27.00-28.83 and 88.60-89.61 for the eutectics): the unresolved values are mole percent; divided by 100.","verdict":"corrected"}}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":4,"fold_lso":0,"id":"ORC-THRYQ7KBZV","locator":{"ref":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii","row":16},"observation_type":"invariant_reaction","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"unresolved:source:doi:10-1179-cmq-2005-44-4-523#10","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1179/cmq.2005.44.4.523","paper_id":"doi:10.1179/cmq.2005.44.4.523","phase_compositions":[{"basis":"mole_fraction (converted from mole percent)","basis_stored":"unresolved","composition":{"MG":0.266},"composition_source":"printed","composition_stored":{"MG":26.6},"phase":"L"},{"basis":"mole_fraction","composition":{"MG":0.6666666667},"composition_source":"stoichiometry","phase":"Mg2Ca"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Mg2Ca","mapping_confidence":"confirmed","model_phase":"CAMG2_C14","pearson_symbol":"hP12","prototype":"MgZn2","structure_basis":"mapped_model_phase"},{"label":"Ca-fcc","mapping_confidence":"confirmed","model_phase":"FCC_A1","pearson_symbol":"cF4","prototype":"Cu","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii/r09#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Mg2Ca+ Ca-fcc","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":733.0,"temperature_printed":"733.00","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-11},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":733.0},{"chemical_system":"CA-MG","cited_sources":[{"kind":"unknown","label":"13","status":"unresolved"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":{"MG":0.27},"before":{"MG":27.0},"evidence":{"factor":0.01,"printed_header":"Mg mol%"},"field":"phase_compositions[L]","gate":"A1","rule":"composition_basis_read_from_page","visual_check":{"checked":"2026-10-24","image_sha256":"06102c61a3b6ff6c44568c746058c2851a95e116b3ebd4d98b0b7f107cc2a045","page":5,"pdf_sha256_prefix":"a73e5208e2ceb16d","seen":"p5 (printed 526) Table II Mg-Ca: the composition column header is 'Mg mol%' (100.00 for Mg-hcp melting, 66.00 for Mg2Ca, 27.00-28.83 and 88.60-89.61 for the eutectics): the unresolved values are mole percent; divided by 100.","verdict":"corrected"}}],"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":4,"fold_lso":0,"id":"ORC-5RWOUHQ3ET","locator":{"ref":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii","row":17},"observation_type":"invariant_reaction","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"unresolved:source:doi:10-1179-cmq-2005-44-4-523#13","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1179/cmq.2005.44.4.523","paper_id":"doi:10.1179/cmq.2005.44.4.523","phase_compositions":[{"basis":"mole_fraction (converted from mole percent)","basis_stored":"unresolved","composition":{"MG":0.27},"composition_source":"printed","composition_stored":{"MG":27.0},"phase":"L"},{"basis":"mole_fraction","composition":{"MG":0.6666666667},"composition_source":"stoichiometry","phase":"Mg2Ca"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Mg2Ca","mapping_confidence":"confirmed","model_phase":"CAMG2_C14","pearson_symbol":"hP12","prototype":"MgZn2","structure_basis":"mapped_model_phase"},{"label":"Ca-fcc","mapping_confidence":"confirmed","model_phase":"FCC_A1","pearson_symbol":"cF4","prototype":"Cu","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii/r10#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Mg2Ca+ Ca-fcc","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":718.0,"temperature_printed":"718.00","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-11},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":718.0},{"chemical_system":"CA-MG","conditions":{"kind":"not_applicable_own_calculation"},"corrections":[{"after":{"MG":0.2883},"before":{"MG":28.83},"evidence":{"factor":0.01,"printed_header":"Mg mol%"},"field":"phase_compositions[L]","gate":"A1","rule":"composition_basis_read_from_page","visual_check":{"checked":"2026-10-24","image_sha256":"06102c61a3b6ff6c44568c746058c2851a95e116b3ebd4d98b0b7f107cc2a045","page":5,"pdf_sha256_prefix":"a73e5208e2ceb16d","seen":"p5 (printed 526) Table II Mg-Ca: the composition column header is 'Mg mol%' (100.00 for Mg-hcp melting, 66.00 for Mg2Ca, 27.00-28.83 and 88.60-89.61 for the eutectics): the unresolved values are mole percent; divided by 100.","verdict":"corrected"}}],"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":4,"fold_lso":0,"id":"ORC-YR2EOZ5E5C","locator":{"ref":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii","row":18},"model":"Ma1e4c1b9","observation_type":"invariant_reaction","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1179/cmq.2005.44.4.523","measured_in_basis":"reporting_paper_own_value","own_work_of_paper":true},"paper":"doi:10.1179/cmq.2005.44.4.523","paper_id":"doi:10.1179/cmq.2005.44.4.523","phase_compositions":[{"basis":"mole_fraction (converted from mole percent)","basis_stored":"unresolved","composition":{"MG":0.2883},"composition_source":"printed","composition_stored":{"MG":28.83},"phase":"L"},{"basis":"mole_fraction","composition":{"MG":0.6666666667},"composition_source":"stoichiometry","phase":"Mg2Ca"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Mg2Ca","mapping_confidence":"confirmed","model_phase":"CAMG2_C14","pearson_symbol":"hP12","prototype":"MgZn2","structure_basis":"mapped_model_phase"},{"label":"Ca-fcc","mapping_confidence":"confirmed","model_phase":"FCC_A1","pearson_symbol":"cF4","prototype":"Cu","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii/r11#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Mg2Ca+ Ca-fcc","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":719.0,"temperature_printed":"719.00","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.005,"sigma_method":{"basis":"calibrated","ci95":[0.004448,0.004448],"class":"model_calculated","entry":"model/X_PHASE","floor":0.005,"floor_unit":"mole fraction","n_pairs":16730,"value":0.005},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-11},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.0,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.29954],"class":"model_calculated","entry":"model/T_INVARIANT","floor":4.0,"floor_unit":"K","n_pairs":14146,"value":4.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":719.0},{"chemical_system":"CA-MG","cited_sources":[{"kind":"unknown","label":"14","status":"unresolved"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":{"MG":0.895},"before":{"MG":89.5},"evidence":{"factor":0.01,"printed_header":"Mg mol%"},"field":"phase_compositions[L]","gate":"A1","rule":"composition_basis_read_from_page","visual_check":{"checked":"2026-10-24","image_sha256":"06102c61a3b6ff6c44568c746058c2851a95e116b3ebd4d98b0b7f107cc2a045","page":5,"pdf_sha256_prefix":"a73e5208e2ceb16d","seen":"p5 (printed 526) Table II Mg-Ca: the composition column header is 'Mg mol%' (100.00 for Mg-hcp melting, 66.00 for Mg2Ca, 27.00-28.83 and 88.60-89.61 for the eutectics): the unresolved values are mole percent; divided by 100.","verdict":"corrected"}}],"evidence_class":"unspecified","flags":{"calphad_check":"agrees","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"plausibility":{"calculation":"pycalphad binary topology (computed invariant)","dT_K":-0.397,"dx":{},"model":"CaMg-05Isl.tdb","result":"pass","tolerance":{"dT_K":25.0,"dx":0.05}},"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":4,"fold_lso":0,"id":"ORC-FEK2H4ESV3","locator":{"ref":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii","row":19},"observation_type":"invariant_reaction","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"unresolved:source:doi:10-1179-cmq-2005-44-4-523#14","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1179/cmq.2005.44.4.523","paper_id":"doi:10.1179/cmq.2005.44.4.523","phase_compositions":[{"basis":"mole_fraction (converted from mole percent)","basis_stored":"unresolved","composition":{"MG":0.895},"composition_source":"printed","composition_stored":{"MG":89.5},"phase":"L"},{"basis":"mole_fraction","composition":{"MG":0.6666666667},"composition_source":"stoichiometry","phase":"Mg2Ca"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Mg2Ca","mapping_confidence":"confirmed","model_phase":"CAMG2_C14","pearson_symbol":"hP12","prototype":"MgZn2","structure_basis":"mapped_model_phase"},{"label":"Mg-hcp","mapping_confidence":"confirmed","model_phase":"HCP_A3","pearson_symbol":"hP2","prototype":"Mg","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii/r12#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Mg2Ca+ Mg-hcp","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":789.5,"temperature_printed":"789.50","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-11},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":789.5},{"chemical_system":"CA-MG","cited_sources":[{"kind":"unknown","label":"15","status":"unresolved"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":{"MG":0.895},"before":{"MG":89.5},"evidence":{"factor":0.01,"printed_header":"Mg mol%"},"field":"phase_compositions[L]","gate":"A1","rule":"composition_basis_read_from_page","visual_check":{"checked":"2026-10-24","image_sha256":"06102c61a3b6ff6c44568c746058c2851a95e116b3ebd4d98b0b7f107cc2a045","page":5,"pdf_sha256_prefix":"a73e5208e2ceb16d","seen":"p5 (printed 526) Table II Mg-Ca: the composition column header is 'Mg mol%' (100.00 for Mg-hcp melting, 66.00 for Mg2Ca, 27.00-28.83 and 88.60-89.61 for the eutectics): the unresolved values are mole percent; divided by 100.","verdict":"corrected"}}],"evidence_class":"unspecified","flags":{"calphad_check":"agrees","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"plausibility":{"calculation":"pycalphad binary topology (computed invariant)","dT_K":0.103,"dx":{},"model":"CaMg-05Isl.tdb","result":"pass","tolerance":{"dT_K":25.0,"dx":0.05}},"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":4,"fold_lso":0,"id":"ORC-YAKVQMUT26","locator":{"ref":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii","row":20},"observation_type":"invariant_reaction","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"unresolved:source:doi:10-1179-cmq-2005-44-4-523#15","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1179/cmq.2005.44.4.523","paper_id":"doi:10.1179/cmq.2005.44.4.523","phase_compositions":[{"basis":"mole_fraction (converted from mole percent)","basis_stored":"unresolved","composition":{"MG":0.895},"composition_source":"printed","composition_stored":{"MG":89.5},"phase":"L"},{"basis":"mole_fraction","composition":{"MG":0.6666666667},"composition_source":"stoichiometry","phase":"Mg2Ca"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Mg2Ca","mapping_confidence":"confirmed","model_phase":"CAMG2_C14","pearson_symbol":"hP12","prototype":"MgZn2","structure_basis":"mapped_model_phase"},{"label":"Mg-hcp","mapping_confidence":"confirmed","model_phase":"HCP_A3","pearson_symbol":"hP2","prototype":"Mg","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii/r13#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Mg2Ca+ Mg-hcp","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":790.0,"temperature_printed":"790.00","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-11},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":790.0},{"chemical_system":"CA-MG","cited_sources":[{"kind":"unknown","label":"10","status":"unresolved"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":{"MG":0.886},"before":{"MG":88.6},"evidence":{"factor":0.01,"printed_header":"Mg mol%"},"field":"phase_compositions[L]","gate":"A1","rule":"composition_basis_read_from_page","visual_check":{"checked":"2026-10-24","image_sha256":"06102c61a3b6ff6c44568c746058c2851a95e116b3ebd4d98b0b7f107cc2a045","page":5,"pdf_sha256_prefix":"a73e5208e2ceb16d","seen":"p5 (printed 526) Table II Mg-Ca: the composition column header is 'Mg mol%' (100.00 for Mg-hcp melting, 66.00 for Mg2Ca, 27.00-28.83 and 88.60-89.61 for the eutectics): the unresolved values are mole percent; divided by 100.","verdict":"corrected"}}],"evidence_class":"unspecified","flags":{"calphad_check":"agrees","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"plausibility":{"calculation":"pycalphad binary topology (computed invariant)","dT_K":8.103,"dx":{},"model":"CaMg-05Isl.tdb","result":"pass","tolerance":{"dT_K":25.0,"dx":0.05}},"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":4,"fold_lso":0,"id":"ORC-DB5EXZOFTY","locator":{"ref":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii","row":21},"observation_type":"invariant_reaction","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"unresolved:source:doi:10-1179-cmq-2005-44-4-523#10","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1179/cmq.2005.44.4.523","paper_id":"doi:10.1179/cmq.2005.44.4.523","phase_compositions":[{"basis":"mole_fraction (converted from mole percent)","basis_stored":"unresolved","composition":{"MG":0.886},"composition_source":"printed","composition_stored":{"MG":88.6},"phase":"L"},{"basis":"mole_fraction","composition":{"MG":0.6666666667},"composition_source":"stoichiometry","phase":"Mg2Ca"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Mg2Ca","mapping_confidence":"confirmed","model_phase":"CAMG2_C14","pearson_symbol":"hP12","prototype":"MgZn2","structure_basis":"mapped_model_phase"},{"label":"Mg-hcp","mapping_confidence":"confirmed","model_phase":"HCP_A3","pearson_symbol":"hP2","prototype":"Mg","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii/r14#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Mg2Ca+ Mg-hcp","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":798.0,"temperature_printed":"798.00","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-11},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":798.0},{"chemical_system":"CA-MG","conditions":{"kind":"not_applicable_own_calculation"},"corrections":[{"after":{"MG":0.8961},"before":{"MG":89.61},"evidence":{"factor":0.01,"printed_header":"Mg mol%"},"field":"phase_compositions[L]","gate":"A1","rule":"composition_basis_read_from_page","visual_check":{"checked":"2026-10-24","image_sha256":"06102c61a3b6ff6c44568c746058c2851a95e116b3ebd4d98b0b7f107cc2a045","page":5,"pdf_sha256_prefix":"a73e5208e2ceb16d","seen":"p5 (printed 526) Table II Mg-Ca: the composition column header is 'Mg mol%' (100.00 for Mg-hcp melting, 66.00 for Mg2Ca, 27.00-28.83 and 88.60-89.61 for the eutectics): the unresolved values are mole percent; divided by 100.","verdict":"corrected"}}],"evidence_class":"model","flags":{"calphad_check":"agrees","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"plausibility":{"calculation":"pycalphad binary topology (computed invariant)","dT_K":-0.097,"dx":{},"model":"CaMg-05Isl.tdb","result":"pass","tolerance":{"dT_K":25.0,"dx":0.05}},"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":4,"fold_lso":0,"id":"ORC-RGZSS2BC3K","locator":{"ref":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii","row":22},"model":"Ma1e4c1b9","observation_type":"invariant_reaction","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1179/cmq.2005.44.4.523","measured_in_basis":"reporting_paper_own_value","own_work_of_paper":true},"paper":"doi:10.1179/cmq.2005.44.4.523","paper_id":"doi:10.1179/cmq.2005.44.4.523","phase_compositions":[{"basis":"mole_fraction (converted from mole percent)","basis_stored":"unresolved","composition":{"MG":0.8961},"composition_source":"printed","composition_stored":{"MG":89.61},"phase":"L"},{"basis":"mole_fraction","composition":{"MG":0.6666666667},"composition_source":"stoichiometry","phase":"Mg2Ca"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Mg2Ca","mapping_confidence":"confirmed","model_phase":"CAMG2_C14","pearson_symbol":"hP12","prototype":"MgZn2","structure_basis":"mapped_model_phase"},{"label":"Mg-hcp","mapping_confidence":"confirmed","model_phase":"HCP_A3","pearson_symbol":"hP2","prototype":"Mg","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1179/cmq.2005.44.4.523/p5/tab-ii/r15#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Mg2Ca+ Mg-hcp","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-MG","system":"CA-MG","temperature_K":789.8,"temperature_printed":"789.80","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.005,"sigma_method":{"basis":"calibrated","ci95":[0.004448,0.004448],"class":"model_calculated","entry":"model/X_PHASE","floor":0.005,"floor_unit":"mole fraction","n_pairs":16730,"value":0.005},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-11},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.0,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.29954],"class":"model_calculated","entry":"model/T_INVARIANT","floor":4.0,"floor_unit":"K","n_pairs":14146,"value":4.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":789.8},{"chemical_system":"CA-MG","citations_printed":["52"],"cited_sources":[{"first_author":"Davison","kind":"unknown","label":"52","reference":"J.E. Davison, J.F. Smith, Trans. Met. Soc. AIME 242 (1968) 2045–2049.","status":"resolved","year":"1968"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":298.15,"before":298.0,"evidence":{"printed":"298 K"},"field":"temperature_K","gate":"G1","rule":"standard_reference_temperature"},{"after":["Mg2Ca"],"before":[],"evidence":{"basis":"one_compound_in_quote","quote_page":11},"field":"phases","gate":"R3","rule":"state_phases_from_quote"}],"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"gate_failures":["phases_recovered_from_quote"],"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":1,"fold_lso":0,"gate_failures":[{"code":"phases_recovered_from_quote","detail":"phases read from the quote (one_compound_in_quote); not mapped to model phases","effect":"not_espei_ready","gate":"R3"}],"id":"ORC-3LFXR22QOA.15c12a","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1016/j.calphad.2005.08.006/p11/text-25"},"observation_type":"equilibrium_property","origin":{"class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2005.08.006","paper_id":"doi:10.1016/j.calphad.2005.08.006","phases":[{"label":"Mg2Ca","label_source":"quote"}],"pid":"doi:10.1016/j.calphad.2005.08.006/p11/text-25/s06#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"HM_FORM","property_group":"formation","property_printed":"enthalpy of formation","quote":"In this study, the calculated enthalpy of formation of Mg2 Ca intermetallic compound at 298 K is -12.70 kJ/g atom, which is in close agreement with King and Kleppa [51] and Davison and Smith [52] who reported this value as -13.5 kJ/g atom and -13.17 kJ/g atom, respectively.","quote_page":11,"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"running_text","source_system":"CA-MG","system":"CA-MG","temperature_K":298.15,"temperature_K_stored":298.0,"temperature_printed":"298 K","tool_release":"release v2 + tools dev copy record build","uncertainty":{"basis":"stated_default","note":"10% placeholder; none printed","value":1.317},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":3.5,"sigma_method":{"basis":"calibrated","ci95":[2.41122,4.298262],"class":"unknown","entry":"value_types/HM_FORM/classes/unknown","floor":3.5,"floor_unit":"kJ/mol-atom","n_pairs":290,"value":3.5},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"kJ/mol-atom","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol-atom","unit_basis":"printed_unit","unit_stored":"kJ/g atom","value":-13.17,"value_stored":-13.17},{"chemical_system":"CA-MG","citations_printed":["51"],"cited_sources":[{"doi":"10.1016/0001-6160(64)90056-2","first_author":"King","kind":"unknown","label":"51","paper":"doi:10.1016/0001-6160(64)90056-2","reference":"R.C. King, O.J. Kleppa, Acta Metall. 12 (1964) 87–97.","status":"resolved","year":"1964"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":298.15,"before":298.0,"evidence":{"printed":"298 K"},"field":"temperature_K","gate":"G1","rule":"standard_reference_temperature"},{"after":["Mg2Ca"],"before":[],"evidence":{"basis":"one_compound_in_quote","quote_page":11},"field":"phases","gate":"R3","rule":"state_phases_from_quote"}],"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"gate_failures":["phases_recovered_from_quote"],"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":1,"fold_lso":0,"gate_failures":[{"code":"phases_recovered_from_quote","detail":"phases read from the quote (one_compound_in_quote); not mapped to model phases","effect":"not_espei_ready","gate":"R3"}],"id":"ORC-3LFXR22QOA.709ed5","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1016/j.calphad.2005.08.006/p11/text-25"},"observation_type":"equilibrium_property","origin":{"class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2005.08.006","paper_id":"doi:10.1016/j.calphad.2005.08.006","phases":[{"label":"Mg2Ca","label_source":"quote"}],"pid":"doi:10.1016/j.calphad.2005.08.006/p11/text-25/s06#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"HM_FORM","property_group":"formation","property_printed":"enthalpy of formation","quote":"In this study, the calculated enthalpy of formation of Mg2 Ca intermetallic compound at 298 K is -12.70 kJ/g atom, which is in close agreement with King and Kleppa [51] and Davison and Smith [52] who reported this value as -13.5 kJ/g atom and -13.17 kJ/g atom, respectively.","quote_page":11,"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"running_text","source_system":"CA-MG","system":"CA-MG","temperature_K":298.15,"temperature_K_stored":298.0,"temperature_printed":"298 K","tool_release":"release v2 + tools dev copy record build","uncertainty":{"basis":"stated_default","note":"10% placeholder; none printed","value":1.35},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":3.5,"sigma_method":{"basis":"calibrated","ci95":[2.41122,4.298262],"class":"unknown","entry":"value_types/HM_FORM/classes/unknown","floor":3.5,"floor_unit":"kJ/mol-atom","n_pairs":290,"value":3.5},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"kJ/mol-atom","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol-atom","unit_basis":"printed_unit","unit_stored":"kJ/g atom","value":-13.5,"value_stored":-13.5},{"chemical_system":"CA-MG","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":false,"gate_failures":["state_phases_missing"],"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":2,"fold_lso":0,"gate_failures":[{"code":"state_phases_missing","detail":"INVARIANT_TEMPERATURE without the phases of its state (reactions_in_quote:0)","effect":"not_accepted","gate":"R3"}],"id":"ORC-VJCZ3B4JXF","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1016/j.intermet.2007.10.010/p14/text-06"},"observation_type":"phase_transition","origin":{"attribution_note":"no printed citation: the paper's own statement","class":"model_value","measured_in":"doi:10.1016/j.intermet.2007.10.010","own_work_of_paper":true},"paper":"doi:10.1016/j.intermet.2007.10.010","paper_id":"doi:10.1016/j.intermet.2007.10.010","pid":"doi:10.1016/j.intermet.2007.10.010/p14/text-06/s01#phase_transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","quote":"This sequence is in perfect agreement with the calculated equilibrium solidification calculation, indicating this ternary eutectic reaction E3 at 515   C.","quote_page":14,"reaction":{"type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"running_text","source_system":"CA-MG","system":"CA-MG","temperature_K":788.15,"temperature_printed":"515 C","tool_release":"release v2 + tools dev copy record build","transition_kind":"eutectic","transition_kind_printed":"eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.0,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.29954],"class":"model_calculated","entry":"model/T_INVARIANT","floor":4.0,"floor_unit":"K","n_pairs":14146,"value":4.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":788.15},{"chemical_system":"CA-MG","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","dropped_field_count":2,"espei_certified":false,"espei_ready":false,"extraction_accepted":false,"gate_failures":["state_phases_missing"],"has_dropped_fields":true,"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":2,"fold_lso":0,"gate_failures":[{"code":"state_phases_missing","detail":"TRANSITION_TEMPERATURE without the phases of its state (not_a_single_phase_transition)","effect":"not_accepted","gate":"R3"}],"id":"ORC-PTWOMRV25K","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1016/j.intermet.2007.10.010/p14/text-06"},"observation_type":"phase_transition","origin":{"attribution_note":"no printed citation: the paper's own statement","class":"model_value","measured_in":"doi:10.1016/j.intermet.2007.10.010","own_work_of_paper":true},"paper":"doi:10.1016/j.intermet.2007.10.010","paper_id":"doi:10.1016/j.intermet.2007.10.010","pid":"doi:10.1016/j.intermet.2007.10.010/p14/text-06/s06#phase_transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","quote":"The equilibrium solidification sequence of sample 3 starts also with the primary Ca2\u0003xMgxSn at 1085 \u0002 C and can be viewed in both Figs. 11 and 12.","quote_page":14,"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"running_text","source_system":"CA-MG","system":"CA-MG","temperature_K":1358.15,"temperature_printed":"1085 C","tool_release":"release v2 + tools dev copy record build","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":10.0,"sigma_method":{"basis":"prior","ci95":null,"class":"model_calculated","entry":"model/T_TRANSITION","floor":10.0,"floor_unit":"K","n_pairs":129,"value":10.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1358.15},{"chemical_system":"CA-MG","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":false,"gate_failures":["state_phases_missing"],"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":2,"fold_lso":0,"gate_failures":[{"code":"state_phases_missing","detail":"INVARIANT_TEMPERATURE without the phases of its state (reactions_in_quote:0)","effect":"not_accepted","gate":"R3"}],"id":"ORC-3VHLXKPIJ6.939009","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1016/j.intermet.2007.10.010/p14/text-06"},"observation_type":"phase_transition","origin":{"attribution_note":"no printed citation: the paper's own statement","class":"model_value","measured_in":"doi:10.1016/j.intermet.2007.10.010","own_work_of_paper":true},"paper":"doi:10.1016/j.intermet.2007.10.010","paper_id":"doi:10.1016/j.intermet.2007.10.010","pid":"doi:10.1016/j.intermet.2007.10.010/p14/text-06/s12#phase_transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","quote":"The reaction L / (Mg) þ Ca2\u0003xMgxSn starts 7 K lower at 633 \u0002 C and stretches down to 562.8 \u0002 C where some 6% of residual liquid finally solidify in the eutectic reaction E2: L 4 (Mg) þ Mg2Sn þ Ca2\u0003xMgxSn.","quote_page":14,"reaction":{"type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"running_text","source_system":"CA-MG","system":"CA-MG","temperature_K":835.95,"temperature_printed":"562.8 C","tool_release":"release v2 + tools dev copy record build","transition_kind":"eutectic","transition_kind_printed":"eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.0,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.29954],"class":"model_calculated","entry":"model/T_INVARIANT","floor":4.0,"floor_unit":"K","n_pairs":14146,"value":4.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":835.95},{"chemical_system":"CA-MG","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":false,"gate_failures":["state_phases_missing"],"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":2,"fold_lso":0,"gate_failures":[{"code":"state_phases_missing","detail":"INVARIANT_TEMPERATURE without the phases of its state (reactions_in_quote:0)","effect":"not_accepted","gate":"R3"}],"id":"ORC-OWCVDMTKUC","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1016/j.intermet.2007.10.010/p15/text-04"},"observation_type":"phase_transition","origin":{"attribution_note":"no printed citation: the paper's own statement","class":"model_value","measured_in":"doi:10.1016/j.intermet.2007.10.010","own_work_of_paper":true},"paper":"doi:10.1016/j.intermet.2007.10.010","paper_id":"doi:10.1016/j.intermet.2007.10.010","pid":"doi:10.1016/j.intermet.2007.10.010/p15/text-04/s15#phase_transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","quote":"After primary crystallization of Ca2\u0003xMgxSn the solidification terminates in the quasibinary eutectic L 4 Ca2\u0003xMgxSn þ Mg2Sn denoted as max2 at 770 \u0002 C in Fig. 13a.","quote_page":15,"reaction":{"type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"running_text","source_system":"CA-MG","system":"CA-MG","temperature_K":1043.15,"temperature_printed":"770 C","tool_release":"release v2 + tools dev copy record build","transition_kind":"eutectic","transition_kind_printed":"eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.0,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.29954],"class":"model_calculated","entry":"model/T_INVARIANT","floor":4.0,"floor_unit":"K","n_pairs":14146,"value":4.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1043.15},{"chemical_system":"CA-MG","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":false,"gate_failures":["state_phases_missing"],"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":2,"fold_lso":0,"gate_failures":[{"code":"state_phases_missing","detail":"INVARIANT_TEMPERATURE without the phases of its state (reactions_in_quote:0)","effect":"not_accepted","gate":"R3"}],"id":"ORC-EVW5OTD2CJ","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1016/j.intermet.2007.10.010/p15/text-05"},"observation_type":"phase_transition","origin":{"attribution_note":"no printed citation: the paper's own statement","class":"model_value","measured_in":"doi:10.1016/j.intermet.2007.10.010","own_work_of_paper":true},"paper":"doi:10.1016/j.intermet.2007.10.010","paper_id":"doi:10.1016/j.intermet.2007.10.010","pid":"doi:10.1016/j.intermet.2007.10.010/p15/text-05/s09#phase_transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","quote":"The primary and secondary solidifications are not much different until the ternary peritectic reaction P: L þ Ca2\u0003xMgxSn þ CaSn 4 Ca6.2Mg3.8Sn7 at 691 \u0002 C is encountered.","quote_page":15,"reaction":{"type":"peritectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"running_text","source_system":"CA-MG","system":"CA-MG","temperature_K":964.15,"temperature_printed":"691   C","tool_release":"release v2 + tools dev copy record build","transition_kind":"peritectic","transition_kind_printed":"peritectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.0,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.29954],"class":"model_calculated","entry":"model/T_INVARIANT","floor":4.0,"floor_unit":"K","n_pairs":14146,"value":4.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":964.15},{"chemical_system":"CA-MG","citations_printed":["43"],"cited_sources":[{"first_author":"Doman","kind":"unknown","label":"43","reference":"R.C. Doman, J.B. Barr, R.N. McNally, A.M. Alper, Phase Equilibria in the System CaO-MgO, J. Am. Ceram. Soc. 46 (1963) 313–316, http://dx.doi.org/10.1111/j. 1151-2916.1963.tb11737.x.","status":"resolved","year":"1963"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","dropped_field_count":1,"espei_certified":false,"espei_ready":false,"extraction_accepted":false,"gate_failures":["state_phases_missing"],"has_dropped_fields":true,"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":1,"fold_lso":0,"gate_failures":[{"code":"state_phases_missing","detail":"INVARIANT_TEMPERATURE without the phases of its state (reactions_in_quote:0)","effect":"not_accepted","gate":"R3"}],"id":"ORC-6VFCPDFAWQ","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1016/j.jeurceramsoc.2018.06.015/p15/text-05"},"observation_type":"phase_transition","origin":{"class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.jeurceramsoc.2018.06.015","paper_id":"doi:10.1016/j.jeurceramsoc.2018.06.015","pid":"doi:10.1016/j.jeurceramsoc.2018.06.015/p15/text-05/s05#phase_transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","quote":"Key data were obtained in 1963 by Doman et al. [43], most importantly the maximum solubilities at the eutectic temperature of 2643 K, given as 7.8 ± 1 wt.% CaO in (MgO) and 17 ± 3 wt.% MgO in (CaO) which are shown with the error bars in Fig. 10 and Table 5.","quote_page":15,"reaction":{"type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"running_text","source_system":"CA-MG","system":"CA-MG","temperature_K":2643.0,"temperature_printed":"2643 K","tool_release":"release v2 + tools dev copy record build","transition_kind":"eutectic","transition_kind_printed":"eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":2643.0},{"chemical_system":"CA-MG","citations_printed":["17"],"cited_sources":[{"kind":"unknown","label":"17","status":"unresolved"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":298.15,"before":298.0,"evidence":{"printed":"298 K"},"field":"temperature_K","gate":"G1","rule":"standard_reference_temperature"},{"after":["Mg2Ca"],"before":[],"evidence":{"basis":"one_compound_in_quote","quote_page":5},"field":"phases","gate":"R3","rule":"state_phases_from_quote"}],"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":false,"gate_failures":["phases_recovered_from_quote"],"review_state":"proposed","second_reader":"done","value_in_quote":true},"fold_lpo":4,"fold_lso":0,"gate_failures":[{"code":"phases_recovered_from_quote","detail":"phases read from the quote (one_compound_in_quote); not mapped to model phases","effect":"not_espei_ready","gate":"R3"}],"id":"ORC-RHTF5CPMWN.6b6f2c","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1179/cmq.2005.44.4.523/p5/text-36"},"observation_type":"equilibrium_property","origin":{"class":"experimental","own_work_of_paper":false},"paper":"doi:10.1179/cmq.2005.44.4.523","paper_id":"doi:10.1179/cmq.2005.44.4.523","phases":[{"label":"Mg2Ca","label_source":"quote"}],"pid":"doi:10.1179/cmq.2005.44.4.523/p5/text-36/s01#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"HM_FORM","property_group":"formation","property_printed":"enthalpy of formation","quote":"In this study the calculated enthalpy of formation of Mg2Ca intermetallic compound is -12.70 kJ/g-atom at 298 K which is in close agreement with the values proposed by Davison and Smith [18] and King and Kleppa [17] as -13.17 kJ/g-atom and -13.5 kJ/g-atom, respectively.","quote_page":5,"reader_agreement":"single_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"unconfirmed (single reader)","reader_tier":"preliminary_flash","readers":["gemini-3.8-flash"],"record_kind":"running_text","source_system":"CA-MG","system":"CA-MG","temperature_K":298.15,"temperature_K_stored":298.0,"temperature_printed":"298 K","tool_release":"release v2 + tools dev copy record build","uncertainty":{"basis":"stated_default","note":"10% placeholder; none printed","value":1.35},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":null,"sigma_effective_reason":"unit 'unspecified' not convertible to kJ/mol-atom","sigma_method":{"basis":"calibrated","ci95":[2.41122,4.298262],"class":"unknown","entry":"value_types/HM_FORM/classes/unknown","floor":3.5,"floor_unit":"kJ/mol-atom","n_pairs":290,"reason":"unit 'unspecified' not convertible to kJ/mol-atom","value":null},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"unspecified","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"unspecified","value":-13.5},{"chemical_system":"CA-MG","citations_printed":["18"],"cited_sources":[{"kind":"unknown","label":"18","status":"unresolved"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":298.15,"before":298.0,"evidence":{"printed":"298 K"},"field":"temperature_K","gate":"G1","rule":"standard_reference_temperature"},{"after":["Mg2Ca"],"before":[],"evidence":{"basis":"one_compound_in_quote","quote_page":5},"field":"phases","gate":"R3","rule":"state_phases_from_quote"}],"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":false,"gate_failures":["phases_recovered_from_quote"],"review_state":"proposed","second_reader":"done","value_in_quote":true},"fold_lpo":4,"fold_lso":0,"gate_failures":[{"code":"phases_recovered_from_quote","detail":"phases read from the quote (one_compound_in_quote); not mapped to model phases","effect":"not_espei_ready","gate":"R3"}],"id":"ORC-RHTF5CPMWN.89d872","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1179/cmq.2005.44.4.523/p5/text-36"},"observation_type":"equilibrium_property","origin":{"class":"experimental","own_work_of_paper":false},"paper":"doi:10.1179/cmq.2005.44.4.523","paper_id":"doi:10.1179/cmq.2005.44.4.523","phases":[{"label":"Mg2Ca","label_source":"quote"}],"pid":"doi:10.1179/cmq.2005.44.4.523/p5/text-36/s01#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"HM_FORM","property_group":"formation","property_printed":"enthalpy of formation","quote":"In this study the calculated enthalpy of formation of Mg2Ca intermetallic compound is -12.70 kJ/g-atom at 298 K which is in close agreement with the values proposed by Davison and Smith [18] and King and Kleppa [17] as -13.17 kJ/g-atom and -13.5 kJ/g-atom, respectively.","quote_page":5,"reader_agreement":"single_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"unconfirmed (single reader)","reader_tier":"preliminary_flash","readers":["gemini-3.8-flash"],"record_kind":"running_text","source_system":"CA-MG","system":"CA-MG","temperature_K":298.15,"temperature_K_stored":298.0,"temperature_printed":"298 K","tool_release":"release v2 + tools dev copy record build","uncertainty":{"basis":"stated_default","note":"10% placeholder; none printed","value":1.317},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":null,"sigma_effective_reason":"unit 'unspecified' not convertible to kJ/mol-atom","sigma_method":{"basis":"calibrated","ci95":[2.41122,4.298262],"class":"unknown","entry":"value_types/HM_FORM/classes/unknown","floor":3.5,"floor_unit":"kJ/mol-atom","n_pairs":290,"reason":"unit 'unspecified' not convertible to kJ/mol-atom","value":null},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"unspecified","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"unspecified","value":-13.17}],"release":"orchid-literature 2026-10-23 (record store db-v2.1: invariant/general v2.1.19r, text+context fixup-20261022)","system":"CA-MG"}