{"artifacts":{"doi:10.1016/j.calphad.2013.01.007/p3/tab-5":{"artifact":"table","caption":"The calculated invariant reactions in the Pb–Eu system compared with the literature data [16].","label":"5","page":3}},"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":["EU","PB"],"licence":"CC BY 4.0 (ORCHID data; quotes are short excerpts kept for verification, the publishers' copyright, not relicensed)","models":{"M0f61eca0":{"catalog_entry":{"license":"CC BY 4.0","name":"EuPb-13Wan.tdb","source_url":"https://doi.org/10.1016/j.calphad.2025.102833","tier":"bundled"},"link_basis":"reporting_paper_own_model","model_citation":"D. Wang, Y. Yu, X.J. Liu, C.P. Wang, Calphad, 41, 20-25(2013).","model_doi":"10.1016/j.calphad.2013.01.007","reproduced_by_calculation":true,"tdb":"EuPb-13Wan.tdb","tdb_path":"databases/sgte-binary/EuPb-13Wan.tdb","tdb_sha256":"f6d7b9cda66ca056479d79ae04d74b04e68aa0493e79d1fae3a2bcd97fdaf1a4"},"M58254287":{"catalog_entry":{"license":"CC BY 4.0","name":"EuPb-13Wan.tdb","source_url":"https://doi.org/10.1016/j.calphad.2025.102833","tier":"bundled"},"link_basis":"reporting_paper_own_model","model_citation":"D. Wang, Y. Yu, X.J. Liu, C.P. Wang, Calphad, 41, 20-25(2013).","model_doi":"10.1016/j.calphad.2013.01.007","reproduced_by_calculation":false,"tdb":"EuPb-13Wan.tdb","tdb_path":"databases/sgte-binary/EuPb-13Wan.tdb","tdb_sha256":"f6d7b9cda66ca056479d79ae04d74b04e68aa0493e79d1fae3a2bcd97fdaf1a4"}},"note":"records[].locator.ref -> artifacts; records[].model -> models (full records: orchid-literature.jsonl.gz)","papers":{"doi:10.1016/j.calphad.2013.01.007":{"authors":["D. Wang","Y. Yu","X.J. Liu","C.P. Wang"],"citation":"D. Wang, Y. Yu, X.J. Liu, C.P. Wang, Thermodynamic assessment of the Eu–Pb and Lu–Pb systems, Calphad 41, 20-25 (2013).","container":"Calphad","doi":"10.1016/j.calphad.2013.01.007","doi_url":"https://doi.org/10.1016/j.calphad.2013.01.007","id":"doi:10.1016/j.calphad.2013.01.007","kind":"corpus_paper","metadata_source":"crossref","pdf_sha256_prefix":"8ce86a1d182c6fce","roles":["reporting_paper"],"source_kinds":["journal_article"],"title":"Thermodynamic assessment of the Eu–Pb and Lu–Pb systems","year":2013},"ref:286634b84c256572":{"citation":"O.D Mcmasters, K.A Gscheidner Jr., J. Less-Common Met. 13 (1967) 193–199.","id":"ref:286634b84c256572","kind":"cited_work","metadata_source":"printed_reference","roles":["cited_source"],"source_kinds":["cited_work"],"year":1967}},"part":1,"parts":1,"records":[{"chemical_system":"EU-PB","cited_sources":[{"kind":"experimental","label":"16","reference":"O.D Mcmasters, K.A Gscheidner Jr., J. Less-Common Met. 13 (1967) 193–199.","status":"resolved","year":"1967"}],"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":3,"fold_lso":2,"id":"ORC-56K3Y7EZV6","locator":{"ref":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5","row":11},"observation_type":"phase_transition","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"ref:286634b84c256572","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2013.01.007","paper_id":"doi:10.1016/j.calphad.2013.01.007","phase_compositions":[{"basis":"mole_fraction","composition":{"PB":0.5},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction","composition":{"PB":0.5},"composition_source":"printed","phase":"βEuPb"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"βEuPb","mapping_confidence":"confirmed","model_phase":"EUPB_HT","pearson_symbol":"?","prototype":"(EuPb)","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5/r-unplaced-10d7bc84#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 ↔ βEuPb"},"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-3.1-pro-preview","gemini-3.8-flash"],"record_kind":"invariant_table","source_system":"EU-PB","system":"EU-PB","temperature_K":1353.15,"temperature_printed":"1080 ± 2","temperature_uncertainty":{"basis":"printed","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":0.05,"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":{"kind":"plus_minus_coverage_not_stated","taken_as":"1 sigma","value":2.0},"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":1353.15},{"chemical_system":"EU-PB","cited_sources":[{"kind":"experimental","label":"16","reference":"O.D Mcmasters, K.A Gscheidner Jr., J. Less-Common Met. 13 (1967) 193–199.","status":"resolved","year":"1967"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"agrees","espei_certified":true,"espei_certified_basis":"pycalphad_invariant_agreement","espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"plausibility":{"calculation":"pycalphad binary topology (computed invariant)","dT_K":-6.141,"dx":{"Eu2Pb":0.0128,"L":-0.0053},"model":"EuPb-13Wan.tdb","result":"pass","tolerance":{"dT_K":25.0,"dx":0.05}},"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":2,"id":"ORC-4XLHTQTGBI","locator":{"ref":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5","row":1},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"ref:286634b84c256572","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2013.01.007","paper_id":"doi:10.1016/j.calphad.2013.01.007","phase_compositions":[{"basis":"mole_fraction","composition":{"PB":0.055},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction","composition":{"PB":0.0},"composition_source":"printed","phase":"(Eu)"},{"basis":"mole_fraction","composition":{"PB":0.33},"composition_source":"printed","phase":"Eu2Pb"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"(Eu)","mapping_confidence":"confirmed","model_phase":"BCC_A2","pearson_symbol":"cI2","prototype":"W","structure_basis":"mapped_model_phase"},{"label":"Eu2Pb","mapping_confidence":"confirmed","model_phase":"EU2PB_C37","pearson_symbol":"oP12","prototype":"Co2Si","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5/r01#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 ↔ (Eu) + Eu2Pb"},"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-3.1-pro-preview","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"EU-PB","system":"EU-PB","temperature_K":1043.15,"temperature_printed":"770 ± 2","temperature_uncertainty":{"basis":"printed","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":{"kind":"plus_minus_coverage_not_stated","taken_as":"1 sigma","value":2.0},"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1043.15},{"chemical_system":"EU-PB","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"agrees","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"plausibility":{"calculation":"pycalphad binary topology (computed invariant)","dT_K":-0.141,"dx":{"Eu2Pb":-0.0002,"L":-0.0001},"model":"EuPb-13Wan.tdb","result":"pass","tolerance":{"dT_K":25.0,"dx":0.05}},"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":2,"id":"ORC-TWZTDLDXKG","locator":{"ref":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5","row":2},"model":"M0f61eca0","observation_type":"invariant_reaction","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1016/j.calphad.2013.01.007","measured_in_basis":"reporting_paper_own_value","own_work_of_paper":true},"paper":"doi:10.1016/j.calphad.2013.01.007","paper_id":"doi:10.1016/j.calphad.2013.01.007","phase_compositions":[{"basis":"mole_fraction","composition":{"PB":0.0602},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction","composition":{"PB":0.0},"composition_source":"printed","phase":"(Eu)"},{"basis":"mole_fraction","composition":{"PB":0.317},"composition_source":"printed","phase":"Eu2Pb"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"(Eu)","mapping_confidence":"confirmed","model_phase":"BCC_A2","pearson_symbol":"cI2","prototype":"W","structure_basis":"mapped_model_phase"},{"label":"Eu2Pb","mapping_confidence":"confirmed","model_phase":"EU2PB_C37","pearson_symbol":"oP12","prototype":"Co2Si","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5/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 ↔ (Eu) + Eu2Pb"},"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-3.1-pro-preview","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"EU-PB","system":"EU-PB","temperature_K":1049.15,"temperature_printed":"776","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":0.005},"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":1049.15},{"chemical_system":"EU-PB","cited_sources":[{"kind":"experimental","label":"16","reference":"O.D Mcmasters, K.A Gscheidner Jr., J. Less-Common Met. 13 (1967) 193–199.","status":"resolved","year":"1967"}],"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":3,"fold_lso":2,"id":"ORC-4MXVF5QWB7","locator":{"ref":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5","row":3},"observation_type":"phase_transition","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"ref:286634b84c256572","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2013.01.007","paper_id":"doi:10.1016/j.calphad.2013.01.007","phase_compositions":[{"basis":"mole_fraction","composition":{"PB":0.333},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction","composition":{"PB":0.333},"composition_source":"printed","phase":"Eu2Pb"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Eu2Pb","mapping_confidence":"confirmed","model_phase":"EU2PB_C37","pearson_symbol":"oP12","prototype":"Co2Si","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5/r03#transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","reaction":{"printed":"L ↔ Eu2Pb"},"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-3.1-pro-preview","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"EU-PB","system":"EU-PB","temperature_K":1523.15,"temperature_printed":"1250 ± 3","temperature_uncertainty":{"basis":"printed","value":3.0},"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":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":{"kind":"plus_minus_coverage_not_stated","taken_as":"1 sigma","value":3.0},"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":1523.15},{"chemical_system":"EU-PB","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":3,"fold_lso":2,"id":"ORC-IPZEIIPS6U","locator":{"ref":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5","row":4},"model":"M0f61eca0","observation_type":"phase_transition","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1016/j.calphad.2013.01.007","measured_in_basis":"reporting_paper_own_value","own_work_of_paper":true},"paper":"doi:10.1016/j.calphad.2013.01.007","paper_id":"doi:10.1016/j.calphad.2013.01.007","phase_compositions":[{"basis":"mole_fraction","composition":{"PB":0.333},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction","composition":{"PB":0.333},"composition_source":"printed","phase":"Eu2Pb"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Eu2Pb","mapping_confidence":"confirmed","model_phase":"EU2PB_C37","pearson_symbol":"oP12","prototype":"Co2Si","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5/r04#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 ↔ Eu2Pb"},"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-3.1-pro-preview","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"EU-PB","system":"EU-PB","temperature_K":1520.75,"temperature_printed":"1247.6","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":0.0005},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":10.0,"sigma_method":{"basis":"prior","ci95":null,"class":"model_calculated","entry":"model/T_TRANSITION","floor":10.0,"floor_unit":"K","n_pairs":129,"value":10.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1520.75},{"chemical_system":"EU-PB","cited_sources":[{"kind":"experimental","label":"16","reference":"O.D Mcmasters, K.A Gscheidner Jr., J. Less-Common Met. 13 (1967) 193–199.","status":"resolved","year":"1967"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"agrees","espei_certified":true,"espei_certified_basis":"pycalphad_invariant_agreement","espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"plausibility":{"calculation":"pycalphad binary topology (computed invariant)","dT_K":5.6,"dx":{"Eu2Pb":0.0001,"Eu5Pb3":-0.0},"model":"EuPb-13Wan.tdb","result":"pass","tolerance":{"dT_K":25.0,"dx":0.05}},"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":2,"id":"ORC-Q33J2277WQ","locator":{"ref":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5","row":5},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"ref:286634b84c256572","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2013.01.007","paper_id":"doi:10.1016/j.calphad.2013.01.007","phase_compositions":[{"basis":"mole_fraction","composition":{"PB":0.333},"composition_source":"printed","phase":"Eu2Pb"},{"basis":"mole_fraction","composition":{"PB":0.375},"composition_source":"printed","phase":"Eu5Pb3"}],"phases":[{"label":"Eu2Pb","mapping_confidence":"confirmed","model_phase":"EU2PB_C37","pearson_symbol":"oP12","prototype":"Co2Si","structure_basis":"mapped_model_phase"},{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Eu5Pb3","mapping_confidence":"confirmed","model_phase":"EU5PB3_D8M","pearson_symbol":"tI32","prototype":"Si3W5","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5/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":"Eu2Pb + L ↔ Eu5Pb3"},"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-3.1-pro-preview","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"EU-PB","system":"EU-PB","temperature_K":1418.15,"temperature_printed":"1145 ± 3","temperature_uncertainty":{"basis":"printed","value":3.0},"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":{"kind":"plus_minus_coverage_not_stated","taken_as":"1 sigma","value":3.0},"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":1418.15},{"chemical_system":"EU-PB","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"agrees","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"plausibility":{"calculation":"pycalphad binary topology (computed invariant)","dT_K":-0.2,"dx":{"Eu2Pb":0.0001,"Eu5Pb3":-0.0,"L":0.0001},"model":"EuPb-13Wan.tdb","result":"pass","tolerance":{"dT_K":25.0,"dx":0.05}},"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":2,"id":"ORC-I4HKSAWC72","locator":{"ref":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5","row":6},"model":"M0f61eca0","observation_type":"invariant_reaction","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1016/j.calphad.2013.01.007","measured_in_basis":"reporting_paper_own_value","own_work_of_paper":true},"paper":"doi:10.1016/j.calphad.2013.01.007","paper_id":"doi:10.1016/j.calphad.2013.01.007","phase_compositions":[{"basis":"mole_fraction","composition":{"PB":0.333},"composition_source":"printed","phase":"Eu2Pb"},{"basis":"mole_fraction","composition":{"PB":0.415},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction","composition":{"PB":0.375},"composition_source":"printed","phase":"Eu5Pb3"}],"phases":[{"label":"Eu2Pb","mapping_confidence":"confirmed","model_phase":"EU2PB_C37","pearson_symbol":"oP12","prototype":"Co2Si","structure_basis":"mapped_model_phase"},{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Eu5Pb3","mapping_confidence":"confirmed","model_phase":"EU5PB3_D8M","pearson_symbol":"tI32","prototype":"Si3W5","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5/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":"Eu2Pb + L ↔ Eu5Pb3"},"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-3.1-pro-preview","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"EU-PB","system":"EU-PB","temperature_K":1412.35,"temperature_printed":"1139.2","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":0.0005},"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":0.005},"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":1412.35},{"chemical_system":"EU-PB","cited_sources":[{"kind":"experimental","label":"16","reference":"O.D Mcmasters, K.A Gscheidner Jr., J. Less-Common Met. 13 (1967) 193–199.","status":"resolved","year":"1967"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"agrees","espei_certified":true,"espei_certified_basis":"pycalphad_invariant_agreement","espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"plausibility":{"calculation":"pycalphad binary topology (computed invariant)","dT_K":-16.669,"dx":{"Eu5Pb3":0.0,"L":-0.0137,"βEuPb":0.0123},"model":"EuPb-13Wan.tdb","result":"pass","tolerance":{"dT_K":25.0,"dx":0.05}},"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":2,"id":"ORC-M7ULEAYK6Y","locator":{"ref":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5","row":7},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"ref:286634b84c256572","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2013.01.007","paper_id":"doi:10.1016/j.calphad.2013.01.007","phase_compositions":[{"basis":"mole_fraction","composition":{"PB":0.445},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction","composition":{"PB":0.375},"composition_source":"printed","phase":"Eu5Pb3"},{"basis":"mole_fraction","composition":{"PB":0.5},"composition_source":"printed","phase":"βEuPb"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Eu5Pb3","mapping_confidence":"confirmed","model_phase":"EU5PB3_D8M","pearson_symbol":"tI32","prototype":"Si3W5","structure_basis":"mapped_model_phase"},{"label":"βEuPb","mapping_confidence":"confirmed","model_phase":"EUPB_HT","pearson_symbol":"?","prototype":"(EuPb)","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5/r07#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L ↔ Eu5Pb3 + βEuPb"},"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-3.1-pro-preview","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"EU-PB","system":"EU-PB","temperature_K":1304.15,"temperature_printed":"1031 ± 2","temperature_uncertainty":{"basis":"printed","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":{"kind":"plus_minus_coverage_not_stated","taken_as":"1 sigma","value":2.0},"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":1304.15},{"chemical_system":"EU-PB","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"agrees","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"plausibility":{"calculation":"pycalphad binary topology (computed invariant)","dT_K":0.031,"dx":{"Eu5Pb3":0.0,"L":0.0003,"βEuPb":0.0123},"model":"EuPb-13Wan.tdb","result":"pass","tolerance":{"dT_K":25.0,"dx":0.05}},"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":2,"id":"ORC-DJZUKIGBC7","locator":{"ref":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5","row":8},"model":"M0f61eca0","observation_type":"invariant_reaction","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1016/j.calphad.2013.01.007","measured_in_basis":"reporting_paper_own_value","own_work_of_paper":true},"paper":"doi:10.1016/j.calphad.2013.01.007","paper_id":"doi:10.1016/j.calphad.2013.01.007","phase_compositions":[{"basis":"mole_fraction","composition":{"PB":0.459},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction","composition":{"PB":0.375},"composition_source":"printed","phase":"Eu5Pb3"},{"basis":"mole_fraction","composition":{"PB":0.5},"composition_source":"printed","phase":"βEuPb"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"Eu5Pb3","mapping_confidence":"confirmed","model_phase":"EU5PB3_D8M","pearson_symbol":"tI32","prototype":"Si3W5","structure_basis":"mapped_model_phase"},{"label":"βEuPb","mapping_confidence":"confirmed","model_phase":"EUPB_HT","pearson_symbol":"?","prototype":"(EuPb)","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5/r08#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L ↔ Eu5Pb3 + βEuPb"},"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-3.1-pro-preview","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"EU-PB","system":"EU-PB","temperature_K":1320.85,"temperature_printed":"1047.7","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":0.0005},"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":0.005},"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":1320.85},{"chemical_system":"EU-PB","cited_sources":[{"kind":"experimental","label":"16","reference":"O.D Mcmasters, K.A Gscheidner Jr., J. Less-Common Met. 13 (1967) 193–199.","status":"resolved","year":"1967"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"agrees","espei_certified":true,"espei_certified_basis":"pycalphad_invariant_agreement","espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"plausibility":{"calculation":"pycalphad binary topology (computed invariant)","dT_K":-5.688,"dx":{"Eu5Pb3":0.0,"αEuPb":0.0061,"βEuPb":0.0089},"model":"EuPb-13Wan.tdb","result":"pass","tolerance":{"dT_K":25.0,"dx":0.05}},"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":2,"id":"ORC-Z7BO7BHNR5","locator":{"ref":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5","row":9},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"ref:286634b84c256572","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2013.01.007","paper_id":"doi:10.1016/j.calphad.2013.01.007","phase_compositions":[{"basis":"mole_fraction","composition":{"PB":0.5},"composition_source":"printed","phase":"βEuPb"},{"basis":"mole_fraction","composition":{"PB":0.375},"composition_source":"printed","phase":"Eu5Pb3"},{"basis":"mole_fraction","composition":{"PB":0.5},"composition_source":"printed","phase":"αEuPb"}],"phases":[{"label":"βEuPb","mapping_confidence":"confirmed","model_phase":"EUPB_HT","pearson_symbol":"?","prototype":"(EuPb)","structure_basis":"mapped_model_phase"},{"label":"Eu5Pb3","mapping_confidence":"confirmed","model_phase":"EU5PB3_D8M","pearson_symbol":"tI32","prototype":"Si3W5","structure_basis":"mapped_model_phase"},{"label":"αEuPb","mapping_confidence":"confirmed","model_phase":"EUPB_L10","pearson_symbol":"tP4","prototype":"AuCu","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5/r09#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"βEuPb ↔ Eu5Pb3 + αEuPb"},"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-3.1-pro-preview","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"EU-PB","system":"EU-PB","temperature_K":1130.15,"temperature_printed":"857","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":0.005},"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":1130.15},{"chemical_system":"EU-PB","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"agrees","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"plausibility":{"calculation":"pycalphad binary topology (computed invariant)","dT_K":0.012,"dx":{"Eu5Pb3":0.0,"αEuPb":0.0001,"βEuPb":-0.0001},"model":"EuPb-13Wan.tdb","result":"pass","tolerance":{"dT_K":25.0,"dx":0.05}},"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":2,"id":"ORC-BNQXN53TBE","locator":{"ref":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5","row":10},"model":"M0f61eca0","observation_type":"invariant_reaction","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1016/j.calphad.2013.01.007","measured_in_basis":"reporting_paper_own_value","own_work_of_paper":true},"paper":"doi:10.1016/j.calphad.2013.01.007","paper_id":"doi:10.1016/j.calphad.2013.01.007","phase_compositions":[{"basis":"mole_fraction","composition":{"PB":0.491},"composition_source":"printed","phase":"βEuPb"},{"basis":"mole_fraction","composition":{"PB":0.375},"composition_source":"printed","phase":"Eu5Pb3"},{"basis":"mole_fraction","composition":{"PB":0.494},"composition_source":"printed","phase":"αEuPb"}],"phases":[{"label":"βEuPb","mapping_confidence":"confirmed","model_phase":"EUPB_HT","pearson_symbol":"?","prototype":"(EuPb)","structure_basis":"mapped_model_phase"},{"label":"Eu5Pb3","mapping_confidence":"confirmed","model_phase":"EU5PB3_D8M","pearson_symbol":"tI32","prototype":"Si3W5","structure_basis":"mapped_model_phase"},{"label":"αEuPb","mapping_confidence":"confirmed","model_phase":"EUPB_L10","pearson_symbol":"tP4","prototype":"AuCu","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5/r10#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"βEuPb ↔ Eu5Pb3 + αEuPb"},"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-3.1-pro-preview","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"EU-PB","system":"EU-PB","temperature_K":1135.85,"temperature_printed":"862.7","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":0.0005},"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":0.005},"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":1135.85},{"chemical_system":"EU-PB","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":3,"fold_lso":2,"id":"ORC-4KBUS5C7W6","locator":{"ref":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5","row":12},"model":"M0f61eca0","observation_type":"phase_transition","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1016/j.calphad.2013.01.007","measured_in_basis":"reporting_paper_own_value","own_work_of_paper":true},"paper":"doi:10.1016/j.calphad.2013.01.007","paper_id":"doi:10.1016/j.calphad.2013.01.007","phase_compositions":[{"basis":"mole_fraction","composition":{"PB":0.5},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction","composition":{"PB":0.5},"composition_source":"printed","phase":"βEuPb"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"βEuPb","mapping_confidence":"confirmed","model_phase":"EUPB_HT","pearson_symbol":"?","prototype":"(EuPb)","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5/r12#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 ↔ βEuPb"},"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-3.1-pro-preview","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"EU-PB","system":"EU-PB","temperature_K":1343.15,"temperature_printed":"1070","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":0.05,"sigma_method":{"basis":"calibrated","ci95":[0.004448,0.004448],"class":"model_calculated","entry":"model/X_PHASE","floor":0.005,"floor_unit":"mole fraction","n_pairs":16730,"value":0.005},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":0.05},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":10.0,"sigma_method":{"basis":"prior","ci95":null,"class":"model_calculated","entry":"model/T_TRANSITION","floor":10.0,"floor_unit":"K","n_pairs":129,"value":10.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"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":1343.15},{"chemical_system":"EU-PB","cited_sources":[{"kind":"experimental","label":"16","reference":"O.D Mcmasters, K.A Gscheidner Jr., J. Less-Common Met. 13 (1967) 193–199.","status":"resolved","year":"1967"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"agrees","espei_certified":true,"espei_certified_basis":"pycalphad_invariant_agreement","espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"plausibility":{"calculation":"pycalphad binary topology (computed invariant)","dT_K":-4.024,"dx":{"αEuPb":0.0002,"βEuPb":0.0003},"model":"EuPb-13Wan.tdb","result":"pass","tolerance":{"dT_K":25.0,"dx":0.05}},"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":2,"id":"ORC-EB443A24EP","locator":{"ref":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5","row":13},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"ref:286634b84c256572","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2013.01.007","paper_id":"doi:10.1016/j.calphad.2013.01.007","phase_compositions":[{"basis":"mole_fraction","composition":{"PB":0.5},"composition_source":"printed","phase":"βEuPb"},{"basis":"mole_fraction","composition":{"PB":0.5},"composition_source":"printed","phase":"αEuPb"}],"phases":[{"label":"βEuPb","mapping_confidence":"confirmed","model_phase":"EUPB_HT","pearson_symbol":"?","prototype":"(EuPb)","structure_basis":"mapped_model_phase"},{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"αEuPb","mapping_confidence":"confirmed","model_phase":"EUPB_L10","pearson_symbol":"tP4","prototype":"AuCu","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5/r13#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"βEuPb + L ↔ αEuPb"},"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-3.1-pro-preview","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"EU-PB","system":"EU-PB","temperature_K":1143.15,"temperature_printed":"870 ± 3","temperature_uncertainty":{"basis":"printed","value":3.0},"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":0.05,"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":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":{"kind":"plus_minus_coverage_not_stated","taken_as":"1 sigma","value":3.0},"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":1143.15},{"chemical_system":"EU-PB","cited_sources":[{"kind":"experimental","label":"16","reference":"O.D Mcmasters, K.A Gscheidner Jr., J. Less-Common Met. 13 (1967) 193–199.","status":"resolved","year":"1967"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"agrees","espei_certified":true,"espei_certified_basis":"pycalphad_invariant_agreement","espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"plausibility":{"calculation":"pycalphad binary topology (computed invariant)","dT_K":1.074,"dx":{"EuPb3":0.0,"L":0.0011,"αEuPb":0.0},"model":"EuPb-13Wan.tdb","result":"pass","tolerance":{"dT_K":25.0,"dx":0.05}},"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":2,"id":"ORC-JKJU7PWOTJ","locator":{"ref":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5","row":15},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"ref:286634b84c256572","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2013.01.007","paper_id":"doi:10.1016/j.calphad.2013.01.007","phase_compositions":[{"basis":"mole_fraction","composition":{"PB":0.635},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction","composition":{"PB":0.5},"composition_source":"printed","phase":"αEuPb"},{"basis":"mole_fraction","composition":{"PB":0.75},"composition_source":"printed","phase":"EuPb3"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"αEuPb","mapping_confidence":"confirmed","model_phase":"EUPB_L10","pearson_symbol":"tP4","prototype":"AuCu","structure_basis":"mapped_model_phase"},{"label":"EuPb3","mapping_confidence":"confirmed","model_phase":"EUPB3_L12","pearson_symbol":"cP4","prototype":"AuCu3","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5/r15#invariant","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L ↔ αEuPb + EuPb3"},"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-3.1-pro-preview","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"EU-PB","system":"EU-PB","temperature_K":990.15,"temperature_printed":"717 ± 2","temperature_uncertainty":{"basis":"printed","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":{"kind":"plus_minus_coverage_not_stated","taken_as":"1 sigma","value":2.0},"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":990.15},{"chemical_system":"EU-PB","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"agrees","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"plausibility":{"calculation":"pycalphad binary topology (computed invariant)","dT_K":-0.026,"dx":{"EuPb3":0.0,"L":0.0001,"αEuPb":0.0},"model":"EuPb-13Wan.tdb","result":"pass","tolerance":{"dT_K":25.0,"dx":0.05}},"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":2,"id":"ORC-NQ3NDZ6UW3","locator":{"ref":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5","row":16},"model":"M0f61eca0","observation_type":"invariant_reaction","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1016/j.calphad.2013.01.007","measured_in_basis":"reporting_paper_own_value","own_work_of_paper":true},"paper":"doi:10.1016/j.calphad.2013.01.007","paper_id":"doi:10.1016/j.calphad.2013.01.007","phase_compositions":[{"basis":"mole_fraction","composition":{"PB":0.634},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction","composition":{"PB":0.5},"composition_source":"printed","phase":"αEuPb"},{"basis":"mole_fraction","composition":{"PB":0.75},"composition_source":"printed","phase":"EuPb3"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"αEuPb","mapping_confidence":"confirmed","model_phase":"EUPB_L10","pearson_symbol":"tP4","prototype":"AuCu","structure_basis":"mapped_model_phase"},{"label":"EuPb3","mapping_confidence":"confirmed","model_phase":"EUPB3_L12","pearson_symbol":"cP4","prototype":"AuCu3","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5/r16#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 ↔ αEuPb + EuPb3"},"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-3.1-pro-preview","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"EU-PB","system":"EU-PB","temperature_K":989.05,"temperature_printed":"715.9","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":0.0005},"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":0.005},"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":989.05},{"chemical_system":"EU-PB","cited_sources":[{"kind":"experimental","label":"16","reference":"O.D Mcmasters, K.A Gscheidner Jr., J. Less-Common Met. 13 (1967) 193–199.","status":"resolved","year":"1967"}],"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":3,"fold_lso":2,"id":"ORC-FCVCDKSTPN","locator":{"ref":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5","row":17},"observation_type":"phase_transition","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"ref:286634b84c256572","measured_in_basis":"cited_work","own_work_of_paper":false},"paper":"doi:10.1016/j.calphad.2013.01.007","paper_id":"doi:10.1016/j.calphad.2013.01.007","phase_compositions":[{"basis":"mole_fraction","composition":{"PB":0.75},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction","composition":{"PB":0.75},"composition_source":"printed","phase":"EuPb3"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"EuPb3","mapping_confidence":"confirmed","model_phase":"EUPB3_L12","pearson_symbol":"cP4","prototype":"AuCu3","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5/r18#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 ↔ EuPb3"},"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-3.1-pro-preview","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"EU-PB","system":"EU-PB","temperature_K":1061.15,"temperature_printed":"788","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":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":1061.15},{"chemical_system":"EU-PB","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":3,"fold_lso":2,"id":"ORC-H2P7EDQ72F","locator":{"ref":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5","row":18},"model":"M58254287","observation_type":"phase_transition","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1016/j.calphad.2013.01.007","measured_in_basis":"reporting_paper_own_value","own_work_of_paper":true},"paper":"doi:10.1016/j.calphad.2013.01.007","paper_id":"doi:10.1016/j.calphad.2013.01.007","phase_compositions":[{"basis":"mole_fraction","composition":{"PB":0.75},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction","composition":{"PB":0.75},"composition_source":"printed","phase":"EuPb3"}],"phases":[{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"EuPb3","mapping_confidence":"confirmed","model_phase":"EUPB3_L12","pearson_symbol":"cP4","prototype":"AuCu3","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5/r19#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 ↔ EuPb3"},"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-3.1-pro-preview","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"EU-PB","system":"EU-PB","temperature_K":1065.65,"temperature_printed":"792.5","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":0.005},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":10.0,"sigma_method":{"basis":"prior","ci95":null,"class":"model_calculated","entry":"model/T_TRANSITION","floor":10.0,"floor_unit":"K","n_pairs":129,"value":10.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1065.65},{"chemical_system":"EU-PB","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"agrees","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"plausibility":{"calculation":"pycalphad binary topology (computed invariant)","dT_K":-0.024,"dx":{"L":-0.0002,"αEuPb":0.0002,"βEuPb":0.0003},"model":"EuPb-13Wan.tdb","result":"pass","tolerance":{"dT_K":25.0,"dx":0.05}},"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":2,"id":"ORC-QXCIBLPOIE","locator":{"ref":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5","row":14},"model":"M0f61eca0","observation_type":"invariant_reaction","origin":{"basis":"this_work+paper_text_states_calculated","class":"model_value","measured_in":"doi:10.1016/j.calphad.2013.01.007","measured_in_basis":"reporting_paper_own_value","own_work_of_paper":true},"paper":"doi:10.1016/j.calphad.2013.01.007","paper_id":"doi:10.1016/j.calphad.2013.01.007","phase_compositions":[{"basis":"mole_fraction","composition":{"PB":0.5},"composition_source":"printed","phase":"βEuPb"},{"basis":"mole_fraction","composition":{"PB":0.591},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction","composition":{"PB":0.5},"composition_source":"printed","phase":"αEuPb"}],"phases":[{"label":"βEuPb","mapping_confidence":"confirmed","model_phase":"EUPB_HT","pearson_symbol":"?","prototype":"(EuPb)","structure_basis":"mapped_model_phase"},{"label":"L","mapping_confidence":"confirmed","model_phase":"LIQUID"},{"label":"αEuPb","mapping_confidence":"confirmed","model_phase":"EUPB_L10","pearson_symbol":"tP4","prototype":"AuCu","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.calphad.2013.01.007/p3/tab-5/r31#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":"βEuPb + L ↔ αEuPb"},"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-3.1-pro-preview","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"EU-PB","system":"EU-PB","temperature_K":1147.15,"temperature_printed":"874","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":0.0005},"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":0.005},"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":1147.15}],"release":"orchid-literature 2026-10-23 (record store db-v2.1: invariant/general v2.1.19r, text+context fixup-20261022)","system":"EU-PB"}