# La–Pb system > La–Pb system: 0 accepted literature values (none) and 1 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote. HTML: https://data.orchid-project.org/systems/LA-PB.html · Markdown: https://data.orchid-project.org/systems/LA-PB.md 0 accepted literature values from 0 paper(s); 1 calculated phase diagram(s). Data: [interactive phase diagram](https://orchid-project.org/phase-diagrams/#LA-PB/LaPb-09Idb.json) · [phases (12)](https://data.orchid-project.org/phases/pages/LA-PB.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/LA-PB.html) · [Markdown](https://data.orchid-project.org/systems/LA-PB.md) ## Calculated phase diagrams Binary phase diagrams calculated with pycalphad 0.11.2 from the SGTE binary collection (Hallstedt 2025, CC BY 4.0). Evidence class: model. Table: Assessments with a calculated phase diagram | TDB file | Assessment | SHA-256 | Links | |---|---|---|---| | LaPb-09Idb.tdb | M. Idbenali, C. Servant, N. Selhaoui, L. Bouirden, JEEP 2009. | `ee98d00c5114096133af647294719ccb4001f0e257ca5aede510eb6d18f67209` | [viewer](https://orchid-project.org/phase-diagrams/#LA-PB/LaPb-09Idb.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/LaPb-09Idb.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/LaPb-09Idb.json) | Table: Calculated three-phase invariants (model, mole fraction of the second component) | TDB file | T (K) | Phases at the invariant | |---|---:|---| | LaPb-09Idb.tdb | 1691.7 | LA5PB3_D88 (x(Pb) 0.375) + LA4PB3_D73 (x(Pb) 0.42857) + LIQUID (x(Pb) 0.43723) | | LaPb-09Idb.tdb | 1691.7 | LA5PB3_D88 (x(Pb) 0.375) + LA4PB3_D73 (x(Pb) 0.42857) + LIQUID (x(Pb) 0.43699) | | LaPb-09Idb.tdb | 1691.7 | LA5PB3_D88 (x(Pb) 0.375) + LA4PB3_D73 (x(Pb) 0.42857) + LIQUID (x(Pb) 0.43746) | | LaPb-09Idb.tdb | 1623.75 | LA4PB3_D73 (x(Pb) 0.42857) + LA5PB4 (x(Pb) 0.44444) + LIQUID (x(Pb) 0.51424) | | LaPb-09Idb.tdb | 1623.75 | LA4PB3_D73 (x(Pb) 0.42857) + LA5PB4 (x(Pb) 0.44444) + LIQUID (x(Pb) 0.51432) | | LaPb-09Idb.tdb | 1623.75 | LA4PB3_D73 (x(Pb) 0.42857) + LA5PB4 (x(Pb) 0.44444) + LIQUID (x(Pb) 0.51401) | | LaPb-09Idb.tdb | 1457.71 | LA5PB4 (x(Pb) 0.44444) + LA3PB4_HT (x(Pb) 0.57143) + LIQUID (x(Pb) 0.58729) | | LaPb-09Idb.tdb | 1457.71 | LA5PB4 (x(Pb) 0.44444) + LA3PB4_HT (x(Pb) 0.57143) + LIQUID (x(Pb) 0.58738) | | LaPb-09Idb.tdb | 1457.71 | LA5PB4 (x(Pb) 0.44444) + LA3PB4_HT (x(Pb) 0.57143) + LIQUID (x(Pb) 0.58725) | | LaPb-09Idb.tdb | 1371.23 | LAPB2 (x(Pb) 0.66667) + LIQUID (x(Pb) 0.67381) + LAPB3_L12 (x(Pb) 0.75) | | LaPb-09Idb.tdb | 1371.23 | LAPB2 (x(Pb) 0.66667) + LIQUID (x(Pb) 0.67375) + LAPB3_L12 (x(Pb) 0.75) | | LaPb-09Idb.tdb | 1371.23 | LAPB2 (x(Pb) 0.66667) + LIQUID (x(Pb) 0.67401) + LAPB3_L12 (x(Pb) 0.75) | | LaPb-09Idb.tdb | 1370.7 | LA3PB4_HT (x(Pb) 0.57143) + LIQUID (x(Pb) 0.65681) + LAPB2 (x(Pb) 0.66667) | | LaPb-09Idb.tdb | 1370.7 | LA3PB4_HT (x(Pb) 0.57143) + LIQUID (x(Pb) 0.65693) + LAPB2 (x(Pb) 0.66667) | | LaPb-09Idb.tdb | 1112.89 | FCC_A1 (x(Pb) 0.00897) + BCC_A2 (x(Pb) 0.0133) + LIQUID (x(Pb) 0.04619) | | LaPb-09Idb.tdb | 1045.83 | FCC_A1 (x(Pb) 0.01679) + LIQUID (x(Pb) 0.08048) + LA5PB3_D88 (x(Pb) 0.375) | | LaPb-09Idb.tdb | 1045.83 | FCC_A1 (x(Pb) 0.01676) + LIQUID (x(Pb) 0.08037) + LA5PB3_D88 (x(Pb) 0.375) | | LaPb-09Idb.tdb | 988.02 | LA5PB4 (x(Pb) 0.44444) + LA3PB4_LT (x(Pb) 0.57143) + LA3PB4_HT (x(Pb) 0.57143) | | LaPb-09Idb.tdb | 988.02 | LA3PB4_HT (x(Pb) 0.57143) + LA3PB4_LT (x(Pb) 0.57143) + LAPB2 (x(Pb) 0.66667) | | LaPb-09Idb.tdb | 588.3 | LAPB3_L12 (x(Pb) 0.75) + LIQUID (x(Pb) 0.98804) + FCC_A1 (x(Pb) 1) | | LaPb-09Idb.tdb | 588.3 | LAPB3_L12 (x(Pb) 0.75) + LIQUID (x(Pb) 0.9881) + FCC_A1 (x(Pb) 1) | | LaPb-09Idb.tdb | 548.74 | DHCP (x(Pb) 0) + FCC_A1 (x(Pb) 1.900e-4) + LA5PB3_D88 (x(Pb) 0.375) | | LaPb-09Idb.tdb | 548.74 | DHCP (x(Pb) 0) + FCC_A1 (x(Pb) 1.800e-4) + LA5PB3_D88 (x(Pb) 0.375) | | LaPb-09Idb.tdb | 548.74 | DHCP (x(Pb) 0) + FCC_A1 (x(Pb) 1.800e-4) + LA5PB3_D88 (x(Pb) 0.375) | Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/LA/LA-PB.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/LA/LA-PB.json) ## Please cite - R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735859 - R. Arróyave, J. Saal, D. Shin, ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD) (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735891 - 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 Also cite B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, https://doi.org/10.1016/j.calphad.2025.102833 (CC BY 4.0), and the original assessment named in each file; A. Jain et al., The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002, https://doi.org/10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501, https://doi.org/10.1007/s11837-013-0755-4 and S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010, https://doi.org/10.1038/npjcompumats.2015.10 (CC BY 4.0); the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work). 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. ```bibtex @misc{orchid_phase_diagrams_2026, author = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon}, title = {{ORCHID-Diagrams: calculated binary phase diagrams}}, version = {2026.10}, publisher = {Zenodo}, year = {2026}, doi = {10.5281/zenodo.23735859}, url = {https://doi.org/10.5281/zenodo.23735859} } @misc{orchid_hulls_2026, author = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon}, title = {{ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD)}}, version = {2026.10}, publisher = {Zenodo}, year = {2026}, doi = {10.5281/zenodo.23735891}, url = {https://doi.org/10.5281/zenodo.23735891} } @misc{orchid_data_2026, author = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon}, title = {{ORCHID data: umbrella record of the ORCHID datasets}}, version = {2026.10}, publisher = {Zenodo}, year = {2026}, doi = {10.5281/zenodo.23736065}, url = {https://doi.org/10.5281/zenodo.23736065}, note = {Version 1, machine-extracted} } ``` --- Derived data CC BY 4.0 ([licence](https://creativecommons.org/licenses/by/4.0/)): cite ORCHID ([CITATION.cff](https://data.orchid-project.org/CITATION.cff)) and the original sources. Quotes are short excerpts kept so that each value can be checked; they remain under the publishers' copyright and are not relicensed. Source papers, page images and full text are not redistributed. Field reference: [SCHEMA.md](https://data.orchid-project.org/literature/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt). Found an error? The report link of a value (Markdown: its id, ORC-..., in the Location column) opens a pre-filled GitHub issue, https://github.com/orchid-calphad/orchid-data/issues/new?template=report-value-error.yml&record_id=\, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).