# Pb–Si system > Pb–Si system: 9 accepted literature values (phase equilibrium 7, phase transition 2) and 1 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote. HTML: https://data.orchid-project.org/systems/PB-SI.html · Markdown: https://data.orchid-project.org/systems/PB-SI.md 9 accepted literature values from 1 paper(s) (experimental 7, model 2); 1 calculated phase diagram(s). 2 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV. Data: [JSON](https://data.orchid-project.org/literature/systems/PB-SI.json) · [CSV](https://data.orchid-project.org/systems/PB-SI.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#PB-SI) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#PB-SI/PbSi-84Ole-LB.json) · [phases (5)](https://data.orchid-project.org/phases/pages/PB-SI.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/PB-SI.html) · [Markdown](https://data.orchid-project.org/systems/PB-SI.md) Table: Accepted values by evidence class | Evidence class | Values | |---|---:| | experimental | 7 | | model | 2 | Table: Accepted values by property group | Property group | Values | |---|---:| | phase transition | 2 | | phase equilibrium | 7 | ## 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 | |---|---|---|---| | PbSi-84Ole-LB.tdb | R.W. Olesinski, G.J. Abbaschian, Bull. Alloy Phase Diag., 5, 271-73(1984). [doi:10.1007/BF02868551](https://doi.org/10.1007/BF02868551) | `56329a6426831a31fd7ef453fb689eb5f0777a80914f906785b011f3e05dee40` | [viewer](https://orchid-project.org/phase-diagrams/#PB-SI/PbSi-84Ole-LB.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/PbSi-84Ole-LB.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/PbSi-84Ole-LB.json) | Table: Calculated three-phase invariants (model, mole fraction of the second component) | TDB file | T (K) | Phases at the invariant | |---|---:|---| | PbSi-84Ole-LB.tdb | 1677.43 | LIQUID (x(Si) 0.02515) + LIQUID#2 (x(Si) 0.97485) + DIAMOND_A4 (x(Si) 0.99736) | | PbSi-84Ole-LB.tdb | 600.61 | LIQUID (x(Si) 0) + FCC_A1 (x(Si) 0) + DIAMOND_A4 (x(Si) 1) | Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/PB/PB-SI.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/PB/PB-SI.json) ## Other properties ### Phase transition (2) Table: Phase transition, Pb–Si system | Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote | |---|---:|---:|---|---|---|---|---| | Phase transition | 1670.15 K | 1670.15 | monotectic: Monotectic transformation; _Si-rich: Si 0.03; Pb-rich: Si 0.97_ | model | [1] Olesinski 1984; _cites ref. 60Thu_ | Table 2, p. 2, row 2; `ORC-ZLOTITBARG` | | | Phase transition | 1675.15 K | 1675.15 | monotectic: Monotectic transformation; _Si-rich: Si 0.025; Pb-rich: Si 0.975_ | model | [1] Olesinski 1984 | Table 2, p. 2, row 1; `ORC-IITFCQBH6S` | | ### Phase equilibrium (7) Table: Phase equilibrium, Pb–Si system | Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote | |---|---:|---:|---|---|---|---|---| | Phase composition | | 1323.15 | Pb-rich liquidus + L (Pb-rich liquidus); _Pb-rich liquidus: Pb 0.9978, Si 0.0022; L (Pb-rich liquidus): Pb 0.9978, Si 0.0022_ | experimental | [1] Olesinski 1984; _cites ref. 60Thu_ | Table 1, p. 2, row 7; `ORC-UM4SGBLASF` | | | Phase composition | | 1349.15 | Pb-rich liquidus + L (Pb-rich liquidus); _Pb-rich liquidus: Pb 0.9975, Si 0.0025; L (Pb-rich liquidus): Pb 0.9975, Si 0.0025_ | experimental | [1] Olesinski 1984; _cites ref. 60Thu_ | Table 1, p. 2, row 6; `ORC-FT2IAKGUAT` | | | Phase composition | | 1373.15 | Pb-rich liquidus + L (Pb-rich liquidus); _Pb-rich liquidus: Pb 0.9964, Si 0.0036; L (Pb-rich liquidus): Pb 0.9964, Si 0.0036_ | experimental | [1] Olesinski 1984; _cites ref. 60Thu_ | Table 1, p. 2, row 5; `ORC-4TIYUCQKBL` | | | Phase composition | | 1423.15 | Pb-rich liquidus + L (Pb-rich liquidus); _Pb-rich liquidus: Pb 0.9954, Si 0.0046; L (Pb-rich liquidus): Pb 0.9954, Si 0.0046_ | experimental | [1] Olesinski 1984; _cites ref. 60Thu_ | Table 1, p. 2, row 4; `ORC-Y32U5Z7QRX` | | | Phase composition | | 1475.15 | Pb-rich liquidus + L (Pb-rich liquidus); _Pb-rich liquidus: Pb 0.9926, Si 0.0074; L (Pb-rich liquidus): Pb 0.9926, Si 0.0074_ | experimental | [1] Olesinski 1984; _cites ref. 60Thu_ | Table 1, p. 2, row 3; `ORC-3U7ANAYJBR` | | | Phase composition | | 1523.15 | Pb-rich liquidus + L (Pb-rich liquidus); _Pb-rich liquidus: Pb 0.9888, Si 0.0112; L (Pb-rich liquidus): Pb 0.9888, Si 0.0112_ | experimental | [1] Olesinski 1984; _cites ref. 60Thu_ | Table 1, p. 2, row 2; `ORC-WW4OEZRSGH` | | | Phase composition | | 1693.15 | Si-rich liquidus + Pb-rich liquidus + L (Si-rich liquidus) + L (Pb-rich liquidus); _Si-rich liquidus: Pb 0.021, Si 0.979; Pb-rich liquidus: Pb 0.968, Si 0.032; L (Si-rich liquidus): Pb 0.021, Si 0.979; L (Pb-rich liquidus): Pb 0.968, Si 0.032_ | experimental | [1] Olesinski 1984; _cites Kirkwood 1961_ [doi](https://doi.org/10.1021/j100824a528) | Table 1, p. 2, row 1; `ORC-LKOLYLZKZZ` | | ## Sources Reporting papers the values were read from (a value cited from another work names that work in its row). 1. R. W. Olesinski, G. J. Abbaschian, The Pb−Si (Lead−Silicon) system, Bulletin of Alloy Phase Diagrams 5, 271-273 (1984). [doi:10.1007/bf02868551](https://doi.org/10.1007/bf02868551) ## Please cite - 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 - 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 the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work); 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). 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_literature_2026, author = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon}, title = {{ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature}}, version = {2026.10}, publisher = {Zenodo}, year = {2026}, doi = {10.5281/zenodo.23735569}, url = {https://doi.org/10.5281/zenodo.23735569}, note = {Version 1, machine-extracted} } @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/).