{"artifacts":{"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5":{"artifact":"table","caption":"Comparison of data for the melting points of pure MgO and CaO and eutectic reaction, Liquid = (MgO) + (CaO), in the quasibinary system MgO-CaO; mol% CaO = 2 (at.% Ca).","label":"5","page":13}},"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","O"],"licence":"CC BY 4.0 (ORCHID data; quotes are short excerpts kept for verification, the publishers' copyright, not relicensed)","models":{},"note":"records[].locator.ref -> artifacts; records[].model -> models (full records: orchid-literature.jsonl.gz)","papers":{"doi:10.1007/bf02667878":{"authors":["B. Hallstedt"],"citation":"B. Hallstedt, Thermodynamic calculation of some subsystems of the Al-Ca-Mg-Si-O system, JPE 14, 662-675 (1993).","container":"JPE","doi":"10.1007/bf02667878","doi_url":"https://doi.org/10.1007/bf02667878","id":"doi:10.1007/bf02667878","kind":"corpus_paper","metadata_source":"crossref","roles":["cited_source","reporting_paper"],"source_kinds":["cited_work","journal_article"],"title":"Thermodynamic calculation of some subsystems of the Al-Ca-Mg-Si-O system","year":1993},"doi:10.1007/bf02669140":{"authors":["Y. Yin","BJB. Argent"],"citation":"Y. Yin, BJB. Argent, The phase diagrams and thermodynamics of the ZrO2-CaO-MgO and MgO-CaO systems, JPE 14, 588-600 (1993).","container":"JPE","doi":"10.1007/bf02669140","doi_url":"https://doi.org/10.1007/bf02669140","id":"doi:10.1007/bf02669140","kind":"cited_work","metadata_source":"crossref","roles":["cited_source"],"source_kinds":["cited_work"],"title":"The phase diagrams and thermodynamics of the ZrO2-CaO-MgO and MgO-CaO systems","year":1993},"doi:10.1007/bf02671244":{"citation":"W. Huang, M. Hillert, X. Wang, Thermodynamic assessment of the CaO–MgO–SiO2 system, Metall. Mater. Trans. A 26 (1995) 2293–2310, http://dx.doi.org/10.1007/ BF02671244.","doi":"10.1007/bf02671244","doi_url":"https://doi.org/10.1007/bf02671244","id":"doi:10.1007/bf02671244","kind":"cited_work","metadata_source":"printed_reference","roles":["cited_source"],"source_kinds":["cited_work"]},"doi:10.1016/0016-7037(87)90009-3":{"authors":["Milton Blander","Arthur D. Pelton"],"citation":"Milton Blander, Arthur D. Pelton, Thermodynamic analysis of binary liquid silicates and prediction of ternary solution properties by modified quasichemical equations, Geochimica et Cosmochimica Acta 51, 85-95 (1987).","container":"Geochimica et Cosmochimica Acta","doi":"10.1016/0016-7037(87)90009-3","doi_url":"https://doi.org/10.1016/0016-7037(87)90009-3","id":"doi:10.1016/0016-7037(87)90009-3","kind":"cited_work","metadata_source":"crossref","roles":["cited_source"],"source_kinds":["cited_work"],"title":"Thermodynamic analysis of binary liquid silicates and prediction of ternary solution properties by modified quasichemical equations","year":1987},"doi:10.1016/0364-5916(89)90006-0":{"citation":"M. Hillert, X. Wang, Thermodynamic calculation of the CaO–MgO system, Calphad 13 (1989) 267–271, http://dx.doi.org/10.1016/0364-5916(89)90006-0.","doi":"10.1016/0364-5916(89)90006-0","doi_url":"https://doi.org/10.1016/0364-5916(89)90006-0","id":"doi:10.1016/0364-5916(89)90006-0","kind":"cited_work","metadata_source":"printed_reference","roles":["cited_source"],"source_kinds":["cited_work"]},"doi:10.1016/0364-5916(92)90035-v":{"citation":"Z. Jin, Y. Du, A reassessment of the CaO–MgO system, Calphad 16 (1992) 33–36, http://dx.doi.org/10.1016/0364-5916(92)90035-V.","doi":"10.1016/0364-5916(92)90035-v","doi_url":"https://doi.org/10.1016/0364-5916(92)90035-v","id":"doi:10.1016/0364-5916(92)90035-v","kind":"cited_work","metadata_source":"printed_reference","roles":["cited_source"],"source_kinds":["cited_work"]},"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}},"part":1,"parts":1,"records":[{"chemical_system":"CA-MG-O","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","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":1,"fold_lso":2,"id":"ORC-ELUAFZNZPQ","locator":{"ref":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5","row":1},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","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","phases":[{"label":"L","model_phase":"LIQUID"},{"label":"(MgO)"},{"label":"(CaO)"}],"phases_dropped":[{"label":"Liquid","reason":"repeats phase 'L'"}],"phases_stored":["L","(MgO)","(CaO)","Liquid"],"pid":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5/r01#invariant_reaction","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":"Liquid = (MgO) + (CaO)","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-O","system":"CA-MG-O","temperature_K":2643.0,"temperature_printed":"2643","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":2643.0},{"chemical_system":"CA-MG-O","cited_sources":[{"doi":"10.1016/0016-7037(87)90009-3","first_author":"Blander","kind":"unknown","label":"19","paper":"doi:10.1016/0016-7037(87)90009-3","reference":"M. Blander, A.D. Pelton, Thermodynamic analysis of binary liquid silicates and prediction of ternary solution properties by modiﬁed quasichemical equations, Geochim. Cosmochim. Acta 51 (1987) 85–95, http://dx.doi.org/10.1016/00167037(87)90009-3.","status":"resolved","year":"1987"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"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":1,"fold_lso":2,"id":"ORC-XB5U6WBV4S","locator":{"ref":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5","row":2},"model_unlinked_reason":"cited calculation whose model is not a corpus TDB","observation_type":"invariant_reaction","origin":{"basis":"printed_source_other_calculation","class":"model_value","own_work_of_paper":false},"paper":"doi:10.1016/j.jeurceramsoc.2018.06.015","paper_id":"doi:10.1016/j.jeurceramsoc.2018.06.015","phases":[{"label":"L","model_phase":"LIQUID"},{"label":"(MgO)"},{"label":"(CaO)"}],"phases_dropped":[{"label":"Liquid","reason":"repeats phase 'L'"}],"phases_stored":["L","(MgO)","(CaO)","Liquid"],"pid":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5/r02#invariant_reaction","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":"Liquid = (MgO) + (CaO)","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-O","system":"CA-MG-O","temperature_K":2643.0,"temperature_printed":"2643","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":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":2643.0},{"chemical_system":"CA-MG-O","cited_sources":[{"doi":"10.1007/bf02667878","first_author":"Hallstedt","kind":"unknown","label":"5","paper":"doi:10.1007/bf02667878","reference":"B. Hallstedt, Thermodynamic calculation of some subsystems of the Al–Ca–Mg–Si–O system, J. Phase Equilib. 14 (1993) 662–675, http://dx.doi.org/10.1007/ bf02667878.","status":"resolved","year":"1993"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"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":1,"fold_lso":2,"id":"ORC-3ILOLK5QGN","locator":{"ref":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5","row":3},"model_unlinked_reason":"cited calculation whose model is not a corpus TDB","observation_type":"invariant_reaction","origin":{"basis":"printed_source_other_calculation","class":"model_value","measured_in":"doi:10.1007/bf02667878","own_work_of_paper":false},"paper":"doi:10.1016/j.jeurceramsoc.2018.06.015","paper_id":"doi:10.1016/j.jeurceramsoc.2018.06.015","phases":[{"label":"L","model_phase":"LIQUID"},{"label":"(MgO)"},{"label":"(CaO)"}],"phases_dropped":[{"label":"Liquid","reason":"repeats phase 'L'"}],"phases_stored":["L","(MgO)","(CaO)","Liquid"],"pid":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5/r03#invariant_reaction","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":"Liquid = (MgO) + (CaO)","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-O","system":"CA-MG-O","temperature_K":2647.0,"temperature_printed":"2647","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":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":2647.0},{"chemical_system":"CA-MG-O","cited_sources":[{"first_author":"Factsage","kind":"unknown","label":"54","reference":"Factsage, Software Package Factsage 7.1 with Integrated Database Ftoxid, Version of 2017, (2017) http://www.factsage.com/.","status":"resolved","year":"2017"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"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":1,"fold_lso":2,"id":"ORC-L74UHIA65E","locator":{"ref":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5","row":4},"model_unlinked_reason":"cited calculation whose model is not a corpus TDB","observation_type":"invariant_reaction","origin":{"basis":"printed_source_other_calculation","class":"model_value","own_work_of_paper":false},"paper":"doi:10.1016/j.jeurceramsoc.2018.06.015","paper_id":"doi:10.1016/j.jeurceramsoc.2018.06.015","phases":[{"label":"L","model_phase":"LIQUID"},{"label":"(MgO)"},{"label":"(CaO)"}],"phases_dropped":[{"label":"Liquid","reason":"repeats phase 'L'"}],"phases_stored":["L","(MgO)","(CaO)","Liquid"],"pid":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5/r04#invariant_reaction","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":"Liquid = (MgO) + (CaO)","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-O","system":"CA-MG-O","temperature_K":2647.0,"temperature_printed":"2647","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":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":2647.0},{"chemical_system":"CA-MG-O","cited_sources":[{"doi":"10.1016/0364-5916(89)90006-0","first_author":"Hillert","kind":"assessment","label":"21","paper":"doi:10.1016/0364-5916(89)90006-0","reference":"M. Hillert, X. Wang, Thermodynamic calculation of the CaO–MgO system, Calphad 13 (1989) 267–271, http://dx.doi.org/10.1016/0364-5916(89)90006-0.","status":"resolved","year":"1989"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"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":1,"fold_lso":2,"id":"ORC-IJGEQBDXJE","locator":{"ref":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5","row":5},"model_unlinked_reason":"cited calculation whose model is not a corpus TDB","observation_type":"invariant_reaction","origin":{"basis":"printed_source_other_calculation","class":"model_value","own_work_of_paper":false},"paper":"doi:10.1016/j.jeurceramsoc.2018.06.015","paper_id":"doi:10.1016/j.jeurceramsoc.2018.06.015","phases":[{"label":"L","model_phase":"LIQUID"},{"label":"(MgO)"},{"label":"(CaO)"}],"phases_dropped":[{"label":"Liquid","reason":"repeats phase 'L'"}],"phases_stored":["L","(MgO)","(CaO)","Liquid"],"pid":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5/r05#invariant_reaction","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":"Liquid = (MgO) + (CaO)","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-O","system":"CA-MG-O","temperature_K":2641.0,"temperature_printed":"2641","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":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":2641.0},{"chemical_system":"CA-MG-O","cited_sources":[{"doi":"10.1007/bf02671244","first_author":"Huang","kind":"assessment","label":"22","paper":"doi:10.1007/bf02671244","reference":"W. Huang, M. Hillert, X. Wang, Thermodynamic assessment of the CaO–MgO–SiO2 system, Metall. Mater. Trans. A 26 (1995) 2293–2310, http://dx.doi.org/10.1007/ BF02671244.","status":"resolved","year":"1995"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"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":1,"fold_lso":2,"id":"ORC-TFNJVEB4RZ","locator":{"ref":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5","row":6},"model_unlinked_reason":"cited calculation whose model is not a corpus TDB","observation_type":"invariant_reaction","origin":{"basis":"printed_source_other_calculation","class":"model_value","own_work_of_paper":false},"paper":"doi:10.1016/j.jeurceramsoc.2018.06.015","paper_id":"doi:10.1016/j.jeurceramsoc.2018.06.015","phases":[{"label":"L","model_phase":"LIQUID"},{"label":"(MgO)"},{"label":"(CaO)"}],"phases_dropped":[{"label":"Liquid","reason":"repeats phase 'L'"}],"phases_stored":["L","(MgO)","(CaO)","Liquid"],"pid":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5/r06#invariant_reaction","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":"Liquid = (MgO) + (CaO)","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-O","system":"CA-MG-O","temperature_K":2648.0,"temperature_printed":"2648","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":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":2648.0},{"chemical_system":"CA-MG-O","cited_sources":[{"doi":"10.1016/0364-5916(92)90035-v","first_author":"Jin","kind":"assessment","label":"23","paper":"doi:10.1016/0364-5916(92)90035-v","reference":"Z. Jin, Y. Du, A reassessment of the CaO–MgO system, Calphad 16 (1992) 33–36, http://dx.doi.org/10.1016/0364-5916(92)90035-V.","status":"resolved","year":"1992"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"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":1,"fold_lso":2,"id":"ORC-QLHBTSEAUS","locator":{"ref":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5","row":7},"model_unlinked_reason":"cited calculation whose model is not a corpus TDB","observation_type":"invariant_reaction","origin":{"basis":"printed_source_other_calculation","class":"model_value","own_work_of_paper":false},"paper":"doi:10.1016/j.jeurceramsoc.2018.06.015","paper_id":"doi:10.1016/j.jeurceramsoc.2018.06.015","phases":[{"label":"L","model_phase":"LIQUID"},{"label":"(MgO)"},{"label":"(CaO)"}],"phases_dropped":[{"label":"Liquid","reason":"repeats phase 'L'"}],"phases_stored":["L","(MgO)","(CaO)","Liquid"],"pid":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5/r07#invariant_reaction","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":"Liquid = (MgO) + (CaO)","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-O","system":"CA-MG-O","temperature_K":2641.0,"temperature_printed":"2641","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":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":2641.0},{"chemical_system":"CA-MG-O","cited_sources":[{"doi":"10.1007/bf02669140","first_author":"Yin","kind":"unknown","label":"24","paper":"doi:10.1007/bf02669140","reference":"Y. Yin, B.J.B. Argent, The phase diagrams and thermodynamics of the ZrO2–CaO–MgO and MgO–CaO systems, J. Phase Equilib. 14 (1993) 588–600, http://dx.doi.org/10.1007/BF02669140.","status":"resolved","year":"1993"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"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":1,"fold_lso":2,"id":"ORC-SAFSOEEYGN","locator":{"ref":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5","row":8},"model_unlinked_reason":"cited calculation whose model is not a corpus TDB","observation_type":"invariant_reaction","origin":{"basis":"printed_source_other_calculation","class":"model_value","own_work_of_paper":false},"paper":"doi:10.1016/j.jeurceramsoc.2018.06.015","paper_id":"doi:10.1016/j.jeurceramsoc.2018.06.015","phases":[{"label":"L","model_phase":"LIQUID"},{"label":"(MgO)"},{"label":"(CaO)"}],"phases_dropped":[{"label":"Liquid","reason":"repeats phase 'L'"}],"phases_stored":["L","(MgO)","(CaO)","Liquid"],"pid":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5/r08#invariant_reaction","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":"Liquid = (MgO) + (CaO)","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-O","system":"CA-MG-O","temperature_K":2632.0,"temperature_printed":"2632","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":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":2632.0},{"chemical_system":"CA-MG-O","cited_sources":[{"first_author":"Serena","kind":"assessment","label":"25","reference":"S. Serena, M.A. Sainz, S. de Aza, A. Caballero, Thermodynamic assessment of the system ZrO2–CaO–MgO using new experimental results: Calculation of the isoplethal section MgO·CaO–ZrO2, J. Eur. Ceram. Soc. 25 (2005) 681–693, http://dx. doi.org/10.1016/j.jeurceramsoc.2004.02.011.","status":"resolved","year":2005,"year_basis":"printed_parenthesised_year","year_read":"2004"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"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":1,"fold_lso":2,"id":"ORC-4ABABKBGXR","locator":{"ref":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5","row":9},"model_unlinked_reason":"cited calculation whose model is not a corpus TDB","observation_type":"invariant_reaction","origin":{"basis":"printed_source_other_calculation","class":"model_value","own_work_of_paper":false},"paper":"doi:10.1016/j.jeurceramsoc.2018.06.015","paper_id":"doi:10.1016/j.jeurceramsoc.2018.06.015","phases":[{"label":"L","model_phase":"LIQUID"},{"label":"(MgO)"},{"label":"(CaO)"}],"phases_dropped":[{"label":"Liquid","reason":"repeats phase 'L'"}],"phases_stored":["L","(MgO)","(CaO)","Liquid"],"pid":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5/r09#invariant_reaction","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":"Liquid = (MgO) + (CaO)","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-O","system":"CA-MG-O","temperature_K":2625.0,"temperature_printed":"2625","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":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":2625.0},{"chemical_system":"CA-MG-O","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":1,"fold_lso":2,"id":"ORC-NEBYE3BRAK","locator":{"ref":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5","row":10},"model_unlinked_reason":"reporting paper's own calculation, but no TDB linked to the table","observation_type":"invariant_reaction","origin":{"basis":"this_work+label_names_calculation","class":"model_value","measured_in":"doi:10.1016/j.jeurceramsoc.2018.06.015","own_work_of_paper":true},"paper":"doi:10.1016/j.jeurceramsoc.2018.06.015","paper_id":"doi:10.1016/j.jeurceramsoc.2018.06.015","phases":[{"label":"L","model_phase":"LIQUID"},{"label":"(MgO)"},{"label":"(CaO)"}],"phases_dropped":[{"label":"Liquid","reason":"repeats phase 'L'"}],"phases_stored":["L","(MgO)","(CaO)","Liquid"],"pid":"doi:10.1016/j.jeurceramsoc.2018.06.015/p13/tab-5/r10#invariant_reaction","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":"Liquid = (MgO) + (CaO)","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-O","system":"CA-MG-O","temperature_K":2643.0,"temperature_printed":"2643","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":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":2643.0}],"release":"orchid-literature 2026-10-23 (record store db-v2.1: invariant/general v2.1.19r, text+context fixup-20261022)","system":"CA-MG-O"}