{"artifacts":{"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2":{"artifact":"table","caption":"Invariant reactions in the Mg–Tb system","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":["MG","TB"],"licence":"CC BY 4.0 (ORCHID data; quotes are short excerpts kept for verification, the publishers' copyright, not relicensed)","models":{"M224d6cce":{"catalog_entry":{"license":"CC BY 4.0","name":"MgTb-06Guo.tdb","source_url":"https://doi.org/10.1016/j.calphad.2025.102833","tier":"bundled"},"link_basis":"reporting_paper_own_model","model_citation":"C. Guo, Z. Du, J. Alloys Compd., 422, 102-8(2006).","model_doi":"10.1016/j.jallcom.2005.11.060","reproduced_by_calculation":true,"tdb":"MgTb-06Guo.tdb","tdb_path":"databases/sgte-binary/MgTb-06Guo.tdb","tdb_sha256":"69acc44761df0f6c71ca54afa6acde7a7b2babc277a4b4056bbc38f7174c3d16"},"M2c2983eb":{"catalog_entry":{"license":"CC BY 4.0","name":"MgTb-06Guo.tdb","source_url":"https://doi.org/10.1016/j.calphad.2025.102833","tier":"bundled"},"link_basis":"reporting_paper_own_model","model_citation":"C. Guo, Z. Du, J. Alloys Compd., 422, 102-8(2006).","model_doi":"10.1016/j.jallcom.2005.11.060","reproduced_by_calculation":false,"tdb":"MgTb-06Guo.tdb","tdb_path":"databases/sgte-binary/MgTb-06Guo.tdb","tdb_sha256":"69acc44761df0f6c71ca54afa6acde7a7b2babc277a4b4056bbc38f7174c3d16"}},"note":"records[].locator.ref -> artifacts; records[].model -> models (full records: orchid-literature.jsonl.gz)","papers":{"doi:10.1016/j.jallcom.2005.11.060":{"authors":["Cuiping Guo","Zhenmin Du"],"citation":"Cuiping Guo, Zhenmin Du, Thermodynamic optimization of the Mg–Tb and Mg–Yb systems, Journal of Alloys and Compounds 422, 102-108 (2006).","container":"Journal of Alloys and Compounds","doi":"10.1016/j.jallcom.2005.11.060","doi_url":"https://doi.org/10.1016/j.jallcom.2005.11.060","id":"doi:10.1016/j.jallcom.2005.11.060","kind":"corpus_paper","metadata_source":"crossref","pdf_sha256_prefix":"73875c4adf791fe3","roles":["reporting_paper"],"source_kinds":["journal_article"],"title":"Thermodynamic optimization of the Mg–Tb and Mg–Yb systems","year":2006}},"part":1,"parts":1,"records":[{"chemical_system":"MG-TB","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":2,"fold_lso":4,"id":"ORC-JY6SDDQJ7Q","locator":{"ref":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2","row":1},"model":"M224d6cce","observation_type":"invariant_reaction","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1016/j.jallcom.2005.11.060","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2005.11.060","paper_id":"doi:10.1016/j.jallcom.2005.11.060","phase_compositions":[{"basis":"mole_fraction","composition":{"TB":0.0943},"composition_source":"printed","phase":"liq."},{"basis":"mole_fraction","composition":{"MG":0.833333,"TB":0.166667},"composition_source":"stoichiometric_model_phase","phase":"Mg5Tb"},{"basis":"mole_fraction","composition":{"TB":0.0196},"composition_source":"printed","phase":"hcp"}],"phases":[{"label":"liq.","model_phase":"LIQUID"},{"label":"Mg5Tb","model_phase":"MG5M","pearson_symbol":"cF448","prototype":"Cd45Sm11","structure_basis":"mapped_model_phase"},{"label":"hcp","model_phase":"HCP_A3","pearson_symbol":"hP2","prototype":"Mg","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2/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":"liq. -> Mg5Tb + hcp","type":"eutectic","type_basis":"derived_from_printed_reaction"},"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":"MG-TB","system":"MG-TB","temperature_K":803.0,"temperature_printed":"803","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","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-07},"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":803.0},{"chemical_system":"MG-TB","cited_sources":[{"first_author":"Saccone","kind":"unknown","label":"25","reference":"A. Saccone, S. Delfino, D. Maccio, R. Ferro, J. Phase Equilib. 14 (1993) 479.","status":"resolved","year":"1993"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":2,"fold_lso":4,"id":"ORC-SOSM3HTC57","locator":{"ref":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2","row":2},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.jallcom.2005.11.060","paper_id":"doi:10.1016/j.jallcom.2005.11.060","phase_compositions":[{"basis":"mole_fraction","composition":{"TB":0.095},"composition_source":"printed","phase":"liq."},{"basis":"mole_fraction","composition":{"MG":0.833333,"TB":0.166667},"composition_source":"stoichiometric_model_phase","phase":"Mg5Tb"},{"basis":"mole_fraction","composition":{"TB":0.04},"composition_source":"printed","phase":"hcp"}],"phases":[{"label":"liq.","model_phase":"LIQUID"},{"label":"Mg5Tb","model_phase":"MG5M","pearson_symbol":"cF448","prototype":"Cd45Sm11","structure_basis":"mapped_model_phase"},{"label":"hcp","model_phase":"HCP_A3","pearson_symbol":"hP2","prototype":"Mg","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2/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":"liq. -> Mg5Tb + hcp","type":"eutectic","type_basis":"derived_from_printed_reaction"},"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":"MG-TB","system":"MG-TB","temperature_K":803.0,"temperature_printed":"803","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","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-07},"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":803.0},{"chemical_system":"MG-TB","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":2,"fold_lso":4,"id":"ORC-YH26HCVZOW","locator":{"ref":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2","row":3},"model":"M224d6cce","observation_type":"invariant_reaction","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1016/j.jallcom.2005.11.060","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2005.11.060","paper_id":"doi:10.1016/j.jallcom.2005.11.060","phase_compositions":[{"basis":"mole_fraction","composition":{"TB":0.1092},"composition_source":"printed","phase":"liq."},{"basis":"mole_fraction","composition":{"MG":0.827586,"TB":0.172414},"composition_source":"stoichiometric_model_phase","phase":"Mg24Tb5"},{"basis":"mole_fraction","composition":{"MG":0.833333,"TB":0.166667},"composition_source":"stoichiometric_model_phase","phase":"Mg5Tb"}],"phases":[{"label":"liq.","model_phase":"LIQUID"},{"label":"Mg24Tb5","model_phase":"MG24TB5_A12","pearson_symbol":"cI58","prototype":"alpha-Mn","structure_basis":"mapped_model_phase"},{"label":"Mg5Tb","model_phase":"MG5M","pearson_symbol":"cF448","prototype":"Cd45Sm11","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2/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":"liq. + Mg24Tb5 -> Mg5Tb"},"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":"MG-TB","system":"MG-TB","temperature_K":818.0,"temperature_printed":"818","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","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-07},"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":818.0},{"chemical_system":"MG-TB","cited_sources":[{"first_author":"Saccone","kind":"unknown","label":"25","reference":"A. Saccone, S. Delfino, D. Maccio, R. Ferro, J. Phase Equilib. 14 (1993) 479.","status":"resolved","year":"1993"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":2,"fold_lso":4,"id":"ORC-FO4GA24PHK","locator":{"ref":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2","row":4},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.jallcom.2005.11.060","paper_id":"doi:10.1016/j.jallcom.2005.11.060","phase_compositions":[{"basis":"mole_fraction","composition":{"TB":0.105},"composition_source":"printed","phase":"liq."},{"basis":"mole_fraction","composition":{"MG":0.827586,"TB":0.172414},"composition_source":"stoichiometric_model_phase","phase":"Mg24Tb5"},{"basis":"mole_fraction","composition":{"MG":0.833333,"TB":0.166667},"composition_source":"stoichiometric_model_phase","phase":"Mg5Tb"}],"phases":[{"label":"liq.","model_phase":"LIQUID"},{"label":"Mg24Tb5","model_phase":"MG24TB5_A12","pearson_symbol":"cI58","prototype":"alpha-Mn","structure_basis":"mapped_model_phase"},{"label":"Mg5Tb","model_phase":"MG5M","pearson_symbol":"cF448","prototype":"Cd45Sm11","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2/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":"liq. + Mg24Tb5 -> Mg5Tb"},"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":"MG-TB","system":"MG-TB","temperature_K":818.0,"temperature_printed":"818","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","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-07},"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":818.0},{"chemical_system":"MG-TB","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":2,"fold_lso":4,"id":"ORC-XC2JK24RGF","locator":{"ref":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2","row":5},"model":"M224d6cce","observation_type":"invariant_reaction","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1016/j.jallcom.2005.11.060","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2005.11.060","paper_id":"doi:10.1016/j.jallcom.2005.11.060","phase_compositions":[{"basis":"mole_fraction","composition":{"TB":0.1215},"composition_source":"printed","phase":"liq."},{"basis":"mole_fraction","composition":{"TB":0.2103},"composition_source":"printed","phase":"Mg3Tb"},{"basis":"mole_fraction","composition":{"MG":0.827586,"TB":0.172414},"composition_source":"stoichiometric_model_phase","phase":"Mg24Tb5"}],"phases":[{"label":"liq.","model_phase":"LIQUID"},{"label":"Mg3Tb","model_phase":"MG3M_D03","pearson_symbol":"cF16","prototype":"BiF3","structure_basis":"mapped_model_phase"},{"label":"Mg24Tb5","model_phase":"MG24TB5_A12","pearson_symbol":"cI58","prototype":"alpha-Mn","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2/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":"liq. + Mg3Tb -> Mg24Tb5"},"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":"MG-TB","system":"MG-TB","temperature_K":828.0,"temperature_printed":"828","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","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-07},"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":828.0},{"chemical_system":"MG-TB","cited_sources":[{"first_author":"Saccone","kind":"unknown","label":"25","reference":"A. Saccone, S. Delfino, D. Maccio, R. Ferro, J. Phase Equilib. 14 (1993) 479.","status":"resolved","year":"1993"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":2,"fold_lso":4,"id":"ORC-3BMWYPWB3E","locator":{"ref":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2","row":6},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.jallcom.2005.11.060","paper_id":"doi:10.1016/j.jallcom.2005.11.060","phase_compositions":[{"basis":"mole_fraction","composition":{"TB":0.12},"composition_source":"printed","phase":"liq."},{"basis":"mole_fraction","composition":{"TB":0.22},"composition_source":"printed","phase":"Mg3Tb"},{"basis":"mole_fraction","composition":{"MG":0.827586,"TB":0.172414},"composition_source":"stoichiometric_model_phase","phase":"Mg24Tb5"}],"phases":[{"label":"liq.","model_phase":"LIQUID"},{"label":"Mg3Tb","model_phase":"MG3M_D03","pearson_symbol":"cF16","prototype":"BiF3","structure_basis":"mapped_model_phase"},{"label":"Mg24Tb5","model_phase":"MG24TB5_A12","pearson_symbol":"cI58","prototype":"alpha-Mn","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2/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":"liq. + Mg3Tb -> Mg24Tb5"},"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":"MG-TB","system":"MG-TB","temperature_K":828.0,"temperature_printed":"828","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","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-07},"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":828.0},{"chemical_system":"MG-TB","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":2,"fold_lso":4,"id":"ORC-RI543GA2I2","locator":{"ref":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2","row":7},"model":"M224d6cce","observation_type":"invariant_reaction","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1016/j.jallcom.2005.11.060","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2005.11.060","paper_id":"doi:10.1016/j.jallcom.2005.11.060","phase_compositions":[{"basis":"mole_fraction","composition":{"TB":0.1701},"composition_source":"printed","phase":"liq."},{"basis":"mole_fraction","composition":{"TB":0.3205},"composition_source":"printed","phase":"Mg2Tb"},{"basis":"mole_fraction","composition":{"TB":0.2335},"composition_source":"printed","phase":"Mg3Tb"}],"phases":[{"label":"liq.","model_phase":"LIQUID"},{"label":"Mg2Tb","model_phase":"MG2TB_C14","pearson_symbol":"hP12","prototype":"MgZn2","structure_basis":"mapped_model_phase"},{"label":"Mg3Tb","model_phase":"MG3M_D03","pearson_symbol":"cF16","prototype":"BiF3","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2/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":"liq. + Mg2Tb -> Mg3Tb"},"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":"MG-TB","system":"MG-TB","temperature_K":878.0,"temperature_printed":"878","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","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-05},"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":878.0},{"chemical_system":"MG-TB","cited_sources":[{"first_author":"Saccone","kind":"unknown","label":"25","reference":"A. Saccone, S. Delfino, D. Maccio, R. Ferro, J. Phase Equilib. 14 (1993) 479.","status":"resolved","year":"1993"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":2,"fold_lso":4,"id":"ORC-YNNI4UG355","locator":{"ref":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2","row":8},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.jallcom.2005.11.060","paper_id":"doi:10.1016/j.jallcom.2005.11.060","phase_compositions":[{"basis":"mole_fraction","composition":{"TB":0.17},"composition_source":"printed","phase":"liq."},{"basis":"mole_fraction","composition":{"TB":0.32},"composition_source":"printed","phase":"Mg2Tb"},{"basis":"mole_fraction","composition":{"TB":0.25},"composition_source":"printed","phase":"Mg3Tb"}],"phases":[{"label":"liq.","model_phase":"LIQUID"},{"label":"Mg2Tb","model_phase":"MG2TB_C14","pearson_symbol":"hP12","prototype":"MgZn2","structure_basis":"mapped_model_phase"},{"label":"Mg3Tb","model_phase":"MG3M_D03","pearson_symbol":"cF16","prototype":"BiF3","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2/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":"liq. + Mg2Tb -> Mg3Tb"},"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":"MG-TB","system":"MG-TB","temperature_K":878.0,"temperature_printed":"878","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","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":878.0},{"chemical_system":"MG-TB","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":2,"fold_lso":4,"id":"ORC-VRXWJIYHME","locator":{"ref":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2","row":9},"model":"M224d6cce","observation_type":"invariant_reaction","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1016/j.jallcom.2005.11.060","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2005.11.060","paper_id":"doi:10.1016/j.jallcom.2005.11.060","phase_compositions":[{"basis":"mole_fraction","composition":{"TB":0.2858},"composition_source":"printed","phase":"liq."},{"basis":"mole_fraction","composition":{"TB":0.4723},"composition_source":"printed","phase":"MgTb"},{"basis":"mole_fraction","composition":{"TB":0.3306},"composition_source":"printed","phase":"Mg2Tb"}],"phases":[{"label":"liq.","model_phase":"LIQUID"},{"label":"MgTb","model_phase":"B2_BCC","pearson_symbol":"cP2","prototype":"CsCl","structure_basis":"mapped_model_phase"},{"label":"Mg2Tb","model_phase":"MG2TB_C14","pearson_symbol":"hP12","prototype":"MgZn2","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2/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":"liq. + MgTb -> Mg2Tb"},"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":"MG-TB","system":"MG-TB","temperature_K":993.0,"temperature_printed":"993","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","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-05},"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":993.0},{"chemical_system":"MG-TB","cited_sources":[{"first_author":"Saccone","kind":"unknown","label":"25","reference":"A. Saccone, S. Delfino, D. Maccio, R. Ferro, J. Phase Equilib. 14 (1993) 479.","status":"resolved","year":"1993"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":2,"fold_lso":4,"id":"ORC-PMQ5LUEFTJ","locator":{"ref":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2","row":10},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.jallcom.2005.11.060","paper_id":"doi:10.1016/j.jallcom.2005.11.060","phase_compositions":[{"basis":"mole_fraction","composition":{"TB":0.27},"composition_source":"printed","phase":"liq."},{"basis":"mole_fraction","composition":{"TB":0.46},"composition_source":"printed","phase":"MgTb"},{"basis":"mole_fraction","composition":{"TB":0.33},"composition_source":"printed","phase":"Mg2Tb"}],"phases":[{"label":"liq.","model_phase":"LIQUID"},{"label":"MgTb","model_phase":"B2_BCC","pearson_symbol":"cP2","prototype":"CsCl","structure_basis":"mapped_model_phase"},{"label":"Mg2Tb","model_phase":"MG2TB_C14","pearson_symbol":"hP12","prototype":"MgZn2","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2/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":"liq. + MgTb -> Mg2Tb"},"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":"MG-TB","system":"MG-TB","temperature_K":993.0,"temperature_printed":"993","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","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":993.0},{"chemical_system":"MG-TB","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":2,"fold_lso":4,"id":"ORC-WPOR6LXSQQ","locator":{"ref":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2","row":11},"model":"M2c2983eb","observation_type":"invariant_reaction","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1016/j.jallcom.2005.11.060","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2005.11.060","paper_id":"doi:10.1016/j.jallcom.2005.11.060","phase_compositions":[{"basis":"mole_fraction","composition":{"TB":0.4697},"composition_source":"printed","phase":"liq."},{"basis":"mole_fraction","composition":{"TB":0.601},"composition_source":"printed","phase":"bcc(Tb)"},{"basis":"mole_fraction","composition":{"TB":0.513},"composition_source":"printed","phase":"MgTb"}],"phases":[{"label":"liq.","model_phase":"LIQUID"},{"label":"bcc(Tb)","model_phase":"BCC_A2","pearson_symbol":"cI2","prototype":"W","structure_basis":"mapped_model_phase"},{"label":"MgTb","model_phase":"B2_BCC","pearson_symbol":"cP2","prototype":"CsCl","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2/r11#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":"liq. + bcc(Tb) -> MgTb"},"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":"MG-TB","system":"MG-TB","temperature_K":1128.0,"temperature_printed":"1128","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","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-05},"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":1128.0},{"chemical_system":"MG-TB","cited_sources":[{"first_author":"Saccone","kind":"unknown","label":"25","reference":"A. Saccone, S. Delfino, D. Maccio, R. Ferro, J. Phase Equilib. 14 (1993) 479.","status":"resolved","year":"1993"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":2,"fold_lso":4,"id":"ORC-IOSSIKESOZ","locator":{"ref":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2","row":12},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.jallcom.2005.11.060","paper_id":"doi:10.1016/j.jallcom.2005.11.060","phase_compositions":[{"basis":"mole_fraction","composition":{"TB":0.47},"composition_source":"printed","phase":"liq."},{"basis":"mole_fraction","composition":{"TB":0.61},"composition_source":"printed","phase":"bcc(Tb)"},{"basis":"mole_fraction","composition":{"TB":0.5},"composition_source":"printed","phase":"MgTb"}],"phases":[{"label":"liq.","model_phase":"LIQUID"},{"label":"bcc(Tb)","model_phase":"BCC_A2","pearson_symbol":"cI2","prototype":"W","structure_basis":"mapped_model_phase"},{"label":"MgTb","model_phase":"B2_BCC","pearson_symbol":"cP2","prototype":"CsCl","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2/r12#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":"liq. + bcc(Tb) -> MgTb"},"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":"MG-TB","system":"MG-TB","temperature_K":1128.0,"temperature_printed":"1128","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","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":1128.0},{"chemical_system":"MG-TB","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":2,"fold_lso":4,"id":"ORC-GEJ2CQD52B","locator":{"ref":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2","row":13},"model":"M2c2983eb","observation_type":"invariant_reaction","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1016/j.jallcom.2005.11.060","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2005.11.060","paper_id":"doi:10.1016/j.jallcom.2005.11.060","phase_compositions":[{"basis":"mole_fraction","composition":{"TB":0.7559},"composition_source":"printed","phase":"bcc(Tb)"},{"basis":"mole_fraction","composition":{"TB":0.8982},"composition_source":"printed","phase":"hcp(Tb)"},{"basis":"mole_fraction","composition":{"TB":0.5248},"composition_source":"printed","phase":"MgTb"}],"phases":[{"label":"bcc(Tb)","model_phase":"BCC_A2","pearson_symbol":"cI2","prototype":"W","structure_basis":"mapped_model_phase"},{"label":"hcp(Tb)","model_phase":"HCP_A3","pearson_symbol":"hP2","prototype":"Mg","structure_basis":"mapped_model_phase"},{"label":"MgTb","model_phase":"B2_BCC","pearson_symbol":"cP2","prototype":"CsCl","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2/r13#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":"bcc(Tb) -> hcp(Tb) + MgTb"},"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":"MG-TB","system":"MG-TB","temperature_K":943.0,"temperature_printed":"943","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","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-05},"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":943.0},{"chemical_system":"MG-TB","cited_sources":[{"first_author":"Saccone","kind":"unknown","label":"25","reference":"A. Saccone, S. Delfino, D. Maccio, R. Ferro, J. Phase Equilib. 14 (1993) 479.","status":"resolved","year":"1993"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":2,"fold_lso":4,"id":"ORC-Z3W5OIZLPQ","locator":{"ref":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2","row":14},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.jallcom.2005.11.060","paper_id":"doi:10.1016/j.jallcom.2005.11.060","phase_compositions":[{"basis":"mole_fraction","composition":{"TB":0.72},"composition_source":"printed","phase":"bcc(Tb)"},{"basis":"mole_fraction","composition":{"TB":0.875},"composition_source":"printed","phase":"hcp(Tb)"},{"basis":"mole_fraction","composition":{"TB":0.52},"composition_source":"printed","phase":"MgTb"}],"phases":[{"label":"bcc(Tb)","model_phase":"BCC_A2","pearson_symbol":"cI2","prototype":"W","structure_basis":"mapped_model_phase"},{"label":"hcp(Tb)","model_phase":"HCP_A3","pearson_symbol":"hP2","prototype":"Mg","structure_basis":"mapped_model_phase"},{"label":"MgTb","model_phase":"B2_BCC","pearson_symbol":"cP2","prototype":"CsCl","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2005.11.060/p5/tab-2/r14#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":"bcc(Tb) -> hcp(Tb) + MgTb"},"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":"MG-TB","system":"MG-TB","temperature_K":943.0,"temperature_printed":"943","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","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":943.0}],"release":"orchid-literature 2026-10-23 (record store db-v2.1: invariant/general v2.1.19r, text+context fixup-20261022)","system":"MG-TB"}