# In–Pb system

> In–Pb system: 5 accepted literature values (invariant reaction 4, phase transition 1) and 3 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/IN-PB.html · Markdown: https://data.orchid-project.org/systems/IN-PB.md

5 accepted literature values from 1 paper(s) (experimental 3, model 2); 3 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/IN-PB.json) · [CSV](https://data.orchid-project.org/systems/IN-PB.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#IN-PB) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#IN-PB/InPb-04Dav.json) · [phases (6)](https://data.orchid-project.org/phases/pages/IN-PB.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/IN-PB.html) · [Markdown](https://data.orchid-project.org/systems/IN-PB.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 3 |
| model | 2 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 4 |
| phase transition | 1 |

## 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 |
|---|---|---|---|
| InPb-04Dav.tdb | N. David, K. El Aissaoui, J.M. Fiorani, J. Hertz, M. Vilasi, Thermochim. Acta, 413, 127-37 (2004). [doi:10.1016/j.tca.2003.10.020](https://doi.org/10.1016/j.tca.2003.10.020) | `fa3de4d2af4fda20a2e999122dbb48cddaea28a29e3b01a7104a357d9da8ae04` | [viewer](https://orchid-project.org/phase-diagrams/#IN-PB/InPb-04Dav.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/InPb-04Dav.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/InPb-04Dav.json) |
| InPb-86Nab.tdb | J.P. Nabot, PhD Thesis, Grenoble, 1986. | `df14085f845d9d7018d659168871a7bad1ee415045db9be2140202969457267e` | [viewer](https://orchid-project.org/phase-diagrams/#IN-PB/InPb-86Nab.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/InPb-86Nab.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/InPb-86Nab.json) |
| InPb-98Boa-LB.tdb | D. Boa, I. Ansara, Thermochim. Acta, 314, 79-86 (1998). [doi:10.1016/S0040-6031(98)00237-8](https://doi.org/10.1016/S0040-6031%2898%2900237-8) | `f26e4bea07c1978fd678e7e0d01cabd1bbe29cd65b140222866e7bc47fb5141f` | [viewer](https://orchid-project.org/phase-diagrams/#IN-PB/InPb-98Boa-LB.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/InPb-98Boa-LB.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/InPb-98Boa-LB.json) |

Table: Calculated three-phase invariants (model, mole fraction of the second component)

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| InPb-04Dav.tdb | 445.7 | LIQUID (x(Pb) 0.19961) + TET_ALPHA1_A6 (x(Pb) 0.25986) + FCC_A1 (x(Pb) 0.29005) |
| InPb-04Dav.tdb | 432.15 | LIQUID (x(Pb) 0.10187) + TETRAGONAL_A6 (x(Pb) 0.10456) + TET_ALPHA1_A6 (x(Pb) 0.13899) |
| InPb-04Dav.tdb | 304.15 | TETRAGONAL_A6 (x(Pb) 0.19282) + TET_ALPHA1_A6 (x(Pb) 0.26525) + FCC_A1 (x(Pb) 0.36514) |
| InPb-86Nab.tdb | 449.42 | LIQUID (x(Pb) 0.21148) + TET_ALPHA1_A6 (x(Pb) 0.28358) + FCC_A1 (x(Pb) 0.32859) |
| InPb-86Nab.tdb | 434.61 | LIQUID (x(Pb) 0.11387) + TETRAGONAL_A6 (x(Pb) 0.11969) + TET_ALPHA1_A6 (x(Pb) 0.15775) |
| InPb-98Boa-LB.tdb | 445.67 | LIQUID (x(Pb) 0.19135) + TET_ALPHA1_A6 (x(Pb) 0.27366) + FCC_A1 (x(Pb) 0.29732) |
| InPb-98Boa-LB.tdb | 431.25 | LIQUID (x(Pb) 0.09043) + TETRAGONAL_A6 (x(Pb) 0.10272) + TET_ALPHA1_A6 (x(Pb) 0.11316) |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/IN/IN-PB.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/IN/IN-PB.json) · [CALPHAD hull InPb-86Nab](https://data.orchid-project.org/hulls/calphad-sgte/IN/IN-PB--InPb-86Nab.json) · [CALPHAD hull InPb-98Boa-LB](https://data.orchid-project.org/hulls/calphad-sgte/IN/IN-PB--InPb-98Boa-LB.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the In–Pb system (4)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 445 | peritectic: Liquid+ (Pb) ⇔ β | L: Pb 0.195; (Pb): Pb 0.29; β: Pb 0.26 | experimental | [1] David 2004; _cites T 1990_ | Table 1, p. 2, row 3; `ORC-6R6TWBTM3M` |  |
| 445 | peritectic: Liquid+ (Pb) ⇔ β | L: Pb 0.198; (Pb): Pb 0.287; β: Pb 0.257 | model | [1] David 2004 | Table 1, p. 2, row 4; `ORC-W5VXZYQ2HG` |  |
| 432 | peritectic: Liquid+ β ⇔ (In) | L: Pb 0.102; β: Pb 0.139; (In): Pb 0.105 | model | [1] David 2004 | Table 1, p. 2, row 2; `ORC-73LOUJNZTY` |  |
| 432 | peritectic: Liquid+ β ⇔ (In) | L: Pb 0.1016; β: Pb 0.1267; (In): Pb 0.1156 | experimental | [1] David 2004; _cites T 1990_ | Table 1, p. 2, row 1; `ORC-RG4JKDMK2W` |  |

## Other properties

### Phase transition (1)

Table: Phase transition, In–Pb system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase transition | 429 K | 429 | congruent melting: Liquid ⇔ (In); _L: Pb 0.025; (In): Pb 0.025_ | experimental | [1] David 2004; _cites T 1990_ | Table 1, p. 2, row 5; `ORC-RKKNXBKXAZ` |  |

## Sources

Reporting papers the values were read from (a value cited from another work names that work in its row).

1. N David, Khadija El Aissaoui, J.M Fiorani, J Hertz, M Vilasi, Thermodynamic optimization of the In–Pb–Sn system based on new evaluations of the binary borders In–Pb and In–Sn, Thermochimica Acta 413, 127-137 (2004). [doi:10.1016/j.tca.2003.10.020](https://doi.org/10.1016/j.tca.2003.10.020)

## 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=\<id>, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).