{"artifacts":{"doi:10.1007/bf02667226/p2/tab-1":{"artifact":"table","caption":"Special Points of the Mg-Er Phase Diagram","label":"1","page":2}},"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":["ER","MG"],"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/bf02667226":{"authors":["H. Okamoto"],"citation":"H. Okamoto, Er-Lu (Erbium-Lutetium), JPE 13, 676-677 (1992).","container":"JPE","doi":"10.1007/bf02667226","doi_url":"https://doi.org/10.1007/bf02667226","id":"doi:10.1007/bf02667226","kind":"corpus_paper","metadata_source":"crossref","pdf_sha256_prefix":"970448bcd1cf4287","roles":["reporting_paper"],"source_kinds":["journal_article"],"title":"Er-Lu (Erbium-Lutetium)","year":1992}},"part":1,"parts":1,"records":[{"chemical_system":"ER-MG","conditions":{"kind":"own_work_origin_unspecified"},"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"from_evaluation_paper":true,"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":0,"fold_lso":0,"id":"ORC-S6W372CLYZ","locator":{"ref":"doi:10.1007/bf02667226/p2/tab-1","row":1},"observation_type":"phase_transition","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"doi:10.1007/bf02667226","measured_in_basis":"no_citation_printed","own_work_of_paper":true},"paper":"doi:10.1007/bf02667226","paper_id":"doi:10.1007/bf02667226","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":1.0},"composition_source":"printed","phase":"Mg"}],"phases":[{"label":"L","mapping_confidence":"proposed","model_phase":"LIQUID"},{"label":"Mg"}],"pid":"doi:10.1007/bf02667226/p2/tab-1/r-unplaced-eb62b318#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","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":"ER-MG","system":"ER-MG","temperature_K":923.15,"temperature_printed":"650","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":0.005},"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":923.15},{"chemical_system":"ER-MG","conditions":{"kind":"own_work_origin_unspecified"},"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":false,"from_evaluation_paper":true,"gate_failures":["composition_outside_unit_interval"],"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":0,"fold_lso":0,"gate_failures":[{"code":"composition_outside_unit_interval","detail":"stored as a mole fraction outside [0, 1]: Mg24Er5 MG=-0.72 (raw percentage or mass-to-mole conversion error)","effect":"not_accepted","gate":"A1"}],"id":"ORC-NP64VDLFBR","locator":{"ref":"doi:10.1007/bf02667226/p2/tab-1","row":2},"observation_type":"invariant_reaction","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"doi:10.1007/bf02667226","measured_in_basis":"no_citation_printed","own_work_of_paper":true},"paper":"doi:10.1007/bf02667226","paper_id":"doi:10.1007/bf02667226","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.895},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction","composition":{"MG":0.931},"composition_source":"printed","phase":"(Mg)"},{"basis":"unresolved","composition":{"MG":-0.72},"composition_source":"printed","phase":"Mg24Er5"}],"phases":[{"label":"L"},{"label":"(Mg)"},{"label":"Mg24Er5"}],"pid":"doi:10.1007/bf02667226/p2/tab-1/r-unplaced-f4cc58e5#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 -> (Mg) + Mg24Er5","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"],"record_kind":"invariant_table","source_system":"ER-MG","system":"ER-MG","temperature_K":843.15,"temperature_printed":"570","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":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":0.005},"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":843.15},{"chemical_system":"ER-MG","conditions":{"kind":"own_work_origin_unspecified"},"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"from_evaluation_paper":true,"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":0,"fold_lso":0,"id":"ORC-UVMAON5UEC","locator":{"ref":"doi:10.1007/bf02667226/p2/tab-1","row":3},"observation_type":"invariant_reaction","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"doi:10.1007/bf02667226","measured_in_basis":"no_citation_printed","own_work_of_paper":true},"paper":"doi:10.1007/bf02667226","paper_id":"doi:10.1007/bf02667226","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.85},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction","composition":{"MG":0.667},"composition_source":"printed","phase":"Mg2Er"},{"basis":"mole_fraction","composition":{"MG":0.828},"composition_source":"printed","phase":"Mg24Er5"}],"phases":[{"label":"L"},{"label":"Mg2Er"},{"label":"Mg24Er5"}],"pid":"doi:10.1007/bf02667226/p2/tab-1/r02#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 + Mg2Er -> Mg24Er5","type":"peritectic"},"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":"ER-MG","system":"ER-MG","temperature_K":873.15,"temperature_printed":"600","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"peritectic","transition_kind_printed":"Peritectic","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":0.005},"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":873.15},{"chemical_system":"ER-MG","conditions":{"kind":"own_work_origin_unspecified"},"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"from_evaluation_paper":true,"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":0,"fold_lso":0,"id":"ORC-ZXXFKIHGOL","locator":{"ref":"doi:10.1007/bf02667226/p2/tab-1","row":4},"observation_type":"invariant_reaction","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"doi:10.1007/bf02667226","measured_in_basis":"no_citation_printed","own_work_of_paper":true},"paper":"doi:10.1007/bf02667226","paper_id":"doi:10.1007/bf02667226","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.8},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction","composition":{"MG":0.5},"composition_source":"printed","phase":"MgEr"},{"basis":"mole_fraction","composition":{"MG":0.667},"composition_source":"printed","phase":"Mg2Er"}],"phases":[{"label":"L"},{"label":"MgEr"},{"label":"Mg2Er"}],"pid":"doi:10.1007/bf02667226/p2/tab-1/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 + MgEr -> Mg2Er","type":"peritectic"},"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":"ER-MG","system":"ER-MG","temperature_K":943.15,"temperature_printed":"670","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"peritectic","transition_kind_printed":"Peritectic","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":0.005},"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":943.15},{"chemical_system":"ER-MG","conditions":{"kind":"own_work_origin_unspecified"},"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"from_evaluation_paper":true,"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":0,"fold_lso":0,"id":"ORC-BNB6NDHJ5Q","locator":{"ref":"doi:10.1007/bf02667226/p2/tab-1","row":5},"observation_type":"invariant_reaction","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"doi:10.1007/bf02667226","measured_in_basis":"no_citation_printed","own_work_of_paper":true},"paper":"doi:10.1007/bf02667226","paper_id":"doi:10.1007/bf02667226","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.63},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction","composition":{"MG":0.43},"composition_source":"printed","phase":"\"(βEr)\""},{"basis":"mole_fraction","composition":{"MG":0.5},"composition_source":"printed","phase":"MgEr"}],"phases":[{"label":"L"},{"label":"\"(βEr)\""},{"label":"MgEr"}],"pid":"doi:10.1007/bf02667226/p2/tab-1/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 + \"(βEr)\" -> MgEr","type":"peritectic"},"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":"ER-MG","system":"ER-MG","temperature_K":1103.15,"temperature_printed":"830","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"peritectic","transition_kind_printed":"Peritectic","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":0.005},"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":1103.15},{"chemical_system":"ER-MG","conditions":{"kind":"own_work_origin_unspecified"},"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"from_evaluation_paper":true,"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":0,"fold_lso":0,"id":"ORC-JYFU532AON","locator":{"ref":"doi:10.1007/bf02667226/p2/tab-1","row":6},"observation_type":"invariant_reaction","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"doi:10.1007/bf02667226","measured_in_basis":"no_citation_printed","own_work_of_paper":true},"paper":"doi:10.1007/bf02667226","paper_id":"doi:10.1007/bf02667226","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.305},"composition_source":"printed","phase":"\"(βEr)\""},{"basis":"mole_fraction","composition":{"MG":0.5},"composition_source":"printed","phase":"MgEr"},{"basis":"mole_fraction","composition":{"MG":0.13},"composition_source":"printed","phase":"(Er)"}],"phases":[{"label":"\"(βEr)\""},{"label":"MgEr"},{"label":"(Er)"}],"pid":"doi:10.1007/bf02667226/p2/tab-1/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":"\"(βEr)\" -> MgEr + (Er)","type":"eutectoid"},"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":"ER-MG","system":"ER-MG","temperature_K":953.15,"temperature_printed":"680","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"eutectoid","transition_kind_printed":"Eutectoid","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":0.005},"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":953.15},{"chemical_system":"ER-MG","conditions":{"kind":"own_work_origin_unspecified"},"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"from_evaluation_paper":true,"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":0,"fold_lso":0,"id":"ORC-XOCAAL34TY","locator":{"ref":"doi:10.1007/bf02667226/p2/tab-1","row":7},"observation_type":"invariant_reaction","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"doi:10.1007/bf02667226","measured_in_basis":"no_citation_printed","own_work_of_paper":true},"paper":"doi:10.1007/bf02667226","paper_id":"doi:10.1007/bf02667226","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.28},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction","composition":{"MG":0.1},"composition_source":"printed","phase":"(Er)"},{"basis":"mole_fraction","composition":{"MG":0.17},"composition_source":"printed","phase":"\"(βEr)\""}],"phases":[{"label":"L"},{"label":"(Er)"},{"label":"\"(βEr)\""}],"pid":"doi:10.1007/bf02667226/p2/tab-1/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 + (Er) -> \"(βEr)\"","type":"peritectic"},"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":"ER-MG","system":"ER-MG","temperature_K":1498.15,"temperature_printed":"1225","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19p","transition_kind":"peritectic","transition_kind_printed":"Peritectic","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":0.005},"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":1498.15},{"chemical_system":"ER-MG","conditions":{"kind":"own_work_origin_unspecified"},"evidence_class":"unspecified","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"from_evaluation_paper":true,"review_state":"extracted","row_state":"settled","source_disputed":true,"state_fully_specified":true},"fold_lpo":0,"fold_lso":0,"id":"ORC-A4GWIB7JSY","locator":{"ref":"doi:10.1007/bf02667226/p2/tab-1","row":8},"observation_type":"phase_transition","origin":{"basis":"no_printed_or_resolvable_source_kind","class":"unspecified","measured_in":"doi:10.1007/bf02667226","measured_in_basis":"no_citation_printed","own_work_of_paper":true},"paper":"doi:10.1007/bf02667226","paper_id":"doi:10.1007/bf02667226","phase_compositions":[{"basis":"mole_fraction","composition":{"MG":0.0},"composition_source":"printed","phase":"Er"}],"phases":[{"label":"L","mapping_confidence":"proposed","model_phase":"LIQUID"},{"label":"Er"}],"pid":"doi:10.1007/bf02667226/p2/tab-1/r07#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 -> Er","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":"ER-MG","system":"ER-MG","temperature_K":1802.15,"temperature_printed":"1529","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":0.005},"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":1802.15}],"release":"orchid-literature 2026-10-23 (record store db-v2.1: invariant/general v2.1.19r, text+context fixup-20261022)","system":"ER-MG"}