# In–Pt system

> In–Pt system: 30 accepted literature values (invariant reaction 29, phase transition 1) and 1 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

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

30 accepted literature values from 1 paper(s) (model 30); 1 calculated phase diagram(s). 9 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-PT.json) · [CSV](https://data.orchid-project.org/systems/IN-PT.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#IN-PT) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#IN-PT/InPt-09Lia.json) · [phases (15)](https://data.orchid-project.org/phases/pages/IN-PT.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/IN-PT.html) · [Markdown](https://data.orchid-project.org/systems/IN-PT.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| model | 30 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 29 |
| 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 |
|---|---|---|---|
| InPt-09Lia.tdb | Y. Liang, C. Guo, C. Li, Z. Du, J. Alloys Compd., 475, 220-26(2009). [doi:10.1016/j.jallcom.2008.07.086](https://doi.org/10.1016/j.jallcom.2008.07.086) | `15a3f542090db76bf057a054fce6245483f7a0b7db8718ba86034538b5e2a983` | [viewer](https://orchid-project.org/phase-diagrams/#IN-PT/InPt-09Lia.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/InPt-09Lia.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/InPt-09Lia.json) |

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

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| InPt-09Lia.tdb | 1731.33 | LIQUID (x(Pt) 0.7392) + L12_FCC (x(Pt) 0.7504) + FCC_A1 (x(Pt) 0.87676) |
| InPt-09Lia.tdb | 1432.01 | LIQUID (x(Pt) 0.57012) + IN2PT3_B82 (x(Pt) 0.63027) + L12_FCC (x(Pt) 0.7236) |
| InPt-09Lia.tdb | 1372.53 | LIQUID (x(Pt) 0.53894) + IN9PT13 (x(Pt) 0.58373) + IN2PT3_B82 (x(Pt) 0.61072) |
| InPt-09Lia.tdb | 1328.55 | LIQUID (x(Pt) 0.51221) + IN5PT6 (x(Pt) 0.55835) + IN9PT13 (x(Pt) 0.57875) |
| InPt-09Lia.tdb | 1302.87 | LIQUID (x(Pt) 0.49484) + INPT_HT (x(Pt) 0.5378) + IN5PT6 (x(Pt) 0.54652) |
| InPt-09Lia.tdb | 1302.87 | LIQUID (x(Pt) 0.49484) + INPT_HT (x(Pt) 0.5378) + IN5PT6 (x(Pt) 0.54652) |
| InPt-09Lia.tdb | 1302.57 | IN2PT_C1 (x(Pt) 0.33333) + LIQUID (x(Pt) 0.34941) + IN3PT2_D513 (x(Pt) 0.4) |
| InPt-09Lia.tdb | 1302.57 | IN2PT_C1 (x(Pt) 0.33333) + LIQUID (x(Pt) 0.34958) + IN3PT2_D513 (x(Pt) 0.4) |
| InPt-09Lia.tdb | 1302.57 | IN2PT_C1 (x(Pt) 0.33333) + LIQUID (x(Pt) 0.34928) + IN3PT2_D513 (x(Pt) 0.4) |
| InPt-09Lia.tdb | 1274.68 | IN2PT3_B82 (x(Pt) 0.61732) + INPT2 (x(Pt) 0.66667) + L12_FCC (x(Pt) 0.72674) |
| InPt-09Lia.tdb | 1269.37 | IN3PT2_D513 (x(Pt) 0.4) + LIQUID (x(Pt) 0.47234) + INPT_HT (x(Pt) 0.52162) |
| InPt-09Lia.tdb | 1269.37 | IN3PT2_D513 (x(Pt) 0.4) + LIQUID (x(Pt) 0.47231) + INPT_HT (x(Pt) 0.5216) |
| InPt-09Lia.tdb | 1217.05 | IN3PT2_D513 (x(Pt) 0.4) + INPT_HT (x(Pt) 0.52201) + IN5PT6 (x(Pt) 0.53278) |
| InPt-09Lia.tdb | 1217.05 | IN3PT2_D513 (x(Pt) 0.4) + INPT_HT (x(Pt) 0.52201) + IN5PT6 (x(Pt) 0.53278) |
| InPt-09Lia.tdb | 1168.76 | LIQUID (x(Pt) 0.22178) + IN7PT3_D8F (x(Pt) 0.3) + IN2PT_C1 (x(Pt) 0.33333) |
| InPt-09Lia.tdb | 1168.76 | LIQUID (x(Pt) 0.22185) + IN7PT3_D8F (x(Pt) 0.3) + IN2PT_C1 (x(Pt) 0.33333) |
| InPt-09Lia.tdb | 1123 | IN9PT13 (x(Pt) 0.58961) + IN2PT3_B82 (x(Pt) 0.60698) + INPT2 (x(Pt) 0.66667) |
| InPt-09Lia.tdb | 1123 | IN9PT13 (x(Pt) 0.58961) + IN2PT3_B82 (x(Pt) 0.60698) + INPT2 (x(Pt) 0.66667) |
| InPt-09Lia.tdb | 823.51 | IN9PT13 (x(Pt) 0.5908) + IN2PT3_ALPHA (x(Pt) 0.6) + INPT2 (x(Pt) 0.66667) |
| InPt-09Lia.tdb | 823.51 | IN9PT13 (x(Pt) 0.5908) + IN2PT3_ALPHA (x(Pt) 0.6) + INPT2 (x(Pt) 0.66667) |
| InPt-09Lia.tdb | 426.81 | TETRAGONAL_A6 (x(Pt) 0) + LIQUID (x(Pt) 0.00537) + IN7PT3_D8F (x(Pt) 0.3) |
| InPt-09Lia.tdb | 426.81 | TETRAGONAL_A6 (x(Pt) 0) + LIQUID (x(Pt) 0.00535) + IN7PT3_D8F (x(Pt) 0.3) |
| InPt-09Lia.tdb | 426.81 | TETRAGONAL_A6 (x(Pt) 0) + LIQUID (x(Pt) 0.00534) + IN7PT3_D8F (x(Pt) 0.3) |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/IN/IN-PT.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/IN/IN-PT.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the In–Pt system (29)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 1731 | liq. + fcc(Pt) -> InPt3 | liq.: Pt 0.739; fcc(Pt): Pt 0.8765; InPt3: Pt 0.7505 | model | [1] Liang 2009 | Table 2, p. 4, row 28; `ORC-A5I2B6G6K6` |  |
| 1731 | liq. + fcc(Pt) -> InPt3 | liq.: Pt 0.73; fcc(Pt): Pt 0.89; InPt3: Pt 0.75 | model | [1] Liang 2009; _cites Okamoto 2005_ [doi](https://doi.org/10.1007/s11669-005-0104-6) | Table 2, p. 4, row 29; `ORC-YDHGOXAIBV` |  |
| 1433 | liq. + InPt3 -> βIn2Pt3 | liq.: Pt 0.56; InPt3: Pt 0.71; βIn2Pt3: Pt 0.6 | model | [1] Liang 2009; _cites Okamoto 2005_ [doi](https://doi.org/10.1007/s11669-005-0104-6) | Table 2, p. 4, row 21; `ORC-47OQQWBPMU` |  |
| 1433 | liq. + InPt3 -> βIn2Pt3 | liq.: Pt 0.5704; InPt3: Pt 0.7238; βIn2Pt3: Pt 0.6305 | model | [1] Liang 2009 | Table 2, p. 4, row 20; `ORC-IIDAFVUHNS` |  |
| 1373 | liq. + βIn2Pt3 -> In9Pt13 | liq.: Pt 0.55; βIn2Pt3: Pt 0.58; In9Pt13: Pt 0.575 | model | [1] Liang 2009; _cites Okamoto 2005_ [doi](https://doi.org/10.1007/s11669-005-0104-6) | Table 2, p. 4, row 19; `ORC-7PSSSOUQJA` |  |
| 1373 | liq. + βIn2Pt3 -> In9Pt13 | liq.: Pt 0.5389; βIn2Pt3: Pt 0.6107; In9Pt13: Pt 0.5837 | model | [1] Liang 2009 | Table 2, p. 4, row 18; `ORC-QWLZIWMTUP` |  |
| 1337 | congruent melting: liq. -> In3Pt2 | liq.: Pt 0.4; In3Pt2: In 0.6, Pt 0.4 | model | [1] Liang 2009; _cites Okamoto 2005_ [doi](https://doi.org/10.1007/s11669-005-0104-6) | Table 2, p. 4, row 9; `ORC-EGGAZIQFP6` |  |
| 1337 | congruent melting: liq. -> In3Pt2 | liq.: Pt 0.4; In3Pt2: In 0.6, Pt 0.4 | model | [1] Liang 2009 | Table 2, p. 4, row 8; `ORC-HB27BH224P` |  |
| 1329 | liq. + In9Pt13 -> In5Pt6 | liq.: Pt 0.51; In9Pt13: Pt 0.55; In5Pt6: Pt 0.545 | model | [1] Liang 2009; _cites Okamoto 2005_ [doi](https://doi.org/10.1007/s11669-005-0104-6) | Table 2, p. 4, row 17; `ORC-NKO5MG36KM` |  |
| 1329 | liq. + In9Pt13 -> In5Pt6 | liq.: Pt 0.5122; In9Pt13: Pt 0.5788; In5Pt6: Pt 0.5584 | model | [1] Liang 2009 | Table 2, p. 4, row 16; `ORC-XATT24OJF2` |  |
| 1305 | congruent melting: liq. -> In2Pt | liq.: Pt 0.3333; In2Pt: In 0.666667, Pt 0.333333 | model | [1] Liang 2009 | Table 2, p. 4, row 5; `ORC-6UQI5IJO7W` |  |
| 1303 | liq. + In5Pt6 -> InPt | liq.: Pt 0.4948; In5Pt6: Pt 0.5465; InPt: Pt 0.5378 | model | [1] Liang 2009 | Table 2, p. 4, row 12; `ORC-4ZU3HPDSA2` |  |
| 1303 | liq. + In5Pt6 -> InPt | liq.: Pt 0.495; In5Pt6: Pt 0.53; InPt: Pt 0.51 | model | [1] Liang 2009; _cites Okamoto 2005_ [doi](https://doi.org/10.1007/s11669-005-0104-6) | Table 2, p. 4, row 13; `ORC-G5K3MYKBOA` |  |
| 1303 | eutectic: liq. -> In2Pt + In3Pt2 | In2Pt: In 0.666667, Pt 0.333333; In3Pt2: In 0.6, Pt 0.4 | model | [1] Liang 2009; _cites Okamoto 2005_ [doi](https://doi.org/10.1007/s11669-005-0104-6) | Table 2, p. 4, row 7; `ORC-HB3OBNC2YR` |  |
| 1303 | eutectic: liq. -> In2Pt + In3Pt2 | liq.: Pt 0.3494; In2Pt: In 0.666667, Pt 0.333333; In3Pt2: In 0.6, Pt 0.4 | model | [1] Liang 2009 | Table 2, p. 4, row 6; `ORC-ZGWCSNO3XU` |  |
| 1278 | βIn2Pt3 + InPt3 -> InPt2 | βIn2Pt3: Pt 0.61; InPt3: Pt 0.73; InPt2: In 0.333333, Pt 0.666667 | model | [1] Liang 2009; _cites Okamoto 2005_ [doi](https://doi.org/10.1007/s11669-005-0104-6) | Table 2, p. 4, row 27; `ORC-32D2RW2OV2` |  |
| 1278 | βIn2Pt3 + InPt3 -> InPt2 | βIn2Pt3: Pt 0.6177; InPt3: Pt 0.7268; InPt2: In 0.333333, Pt 0.666667 | model | [1] Liang 2009 | Table 2, p. 4, row 26; `ORC-WUVPPNWBDI` |  |
| 1269 | eutectic: liq. -> In3Pt2 + InPt | liq.: Pt 0.4723; In3Pt2: In 0.6, Pt 0.4; InPt: Pt 0.5216 | model | [1] Liang 2009 | Table 2, p. 4, row 10; `ORC-KMHWRHTYT4` |  |
| 1266 | eutectic: liq. -> In3Pt2 + InPt | liq.: Pt 0.47; In3Pt2: In 0.6, Pt 0.4; InPt: Pt 0.48 | model | [1] Liang 2009; _cites Okamoto 2005_ [doi](https://doi.org/10.1007/s11669-005-0104-6) | Table 2, p. 4, row 11; `ORC-D5TUBTKC5W` |  |
| 1217 | InPt -> In3Pt2 + In5Pt6 | InPt: Pt 0.5; In3Pt2: In 0.6, Pt 0.4; In5Pt6: Pt 0.51 | model | [1] Liang 2009; _cites Okamoto 2005_ [doi](https://doi.org/10.1007/s11669-005-0104-6) | Table 2, p. 4, row 15; `ORC-APZDLGVUPA` |  |
| 1217 | InPt -> In3Pt2 + In5Pt6 | InPt: Pt 0.522; In3Pt2: In 0.6, Pt 0.4; In5Pt6: Pt 0.5328 | model | [1] Liang 2009 | Table 2, p. 4, row 14; `ORC-FOJEQMHQIZ` |  |
| 1169 | liq. + In2Pt -> In7Pt3 | liq.: Pt 0.18; In2Pt: In 0.666667, Pt 0.333333; In7Pt3: In 0.7, Pt 0.3 | model | [1] Liang 2009; _cites Okamoto 2005_ [doi](https://doi.org/10.1007/s11669-005-0104-6) | Table 2, p. 4, row 4; `ORC-DAK4DHTCW3` |  |
| 1169 | liq. + In2Pt -> In7Pt3 | liq.: Pt 0.2218; In2Pt: In 0.666667, Pt 0.333333; In7Pt3: In 0.7, Pt 0.3 | model | [1] Liang 2009 | Table 2, p. 4, row 3; `ORC-Z3AULOTX5L` |  |
| 1123 | βIn2Pt3 -> In9Pt13 + InPt2 | βIn2Pt3: Pt 0.605; In9Pt13: Pt 0.59; InPt2: In 0.333333, Pt 0.666667 | model | [1] Liang 2009; _cites Okamoto 2005_ [doi](https://doi.org/10.1007/s11669-005-0104-6) | Table 2, p. 4, row 25; `ORC-64DN5BKPWL` |  |
| 1123 | βIn2Pt3 -> In9Pt13 + InPt2 | βIn2Pt3: Pt 0.607; In9Pt13: Pt 0.5896; InPt2: In 0.333333, Pt 0.666667 | model | [1] Liang 2009 | Table 2, p. 4, row 24; `ORC-W36L7QLBS3` |  |
| 823 | In9Pt13 + InPt2 -> αIn2Pt3 | In9Pt13: Pt 0.5908; InPt2: In 0.333333, Pt 0.666667; αIn2Pt3: In 0.4, Pt 0.6 | model | [1] Liang 2009 | Table 2, p. 4, row 22; `ORC-2VNSCM4V7M` |  |
| 823 | In9Pt13 + InPt2 -> αIn2Pt3 | In9Pt13: Pt 0.585; InPt2: In 0.333333, Pt 0.666667; αIn2Pt3: In 0.4, Pt 0.6 | model | [1] Liang 2009; _cites Okamoto 2005_ [doi](https://doi.org/10.1007/s11669-005-0104-6) | Table 2, p. 4, row 23; `ORC-RONKDEO3ZB` |  |
| 427 | eutectic: liq. -> tetra(In) + In7Pt3 | liq.: Pt 0.001; tetra(In): Pt 0; In7Pt3: In 0.7, Pt 0.3 | model | [1] Liang 2009; _cites Okamoto 2005_ [doi](https://doi.org/10.1007/s11669-005-0104-6) | Table 2, p. 4, row 2; `ORC-J62O62TRJX` |  |
| 427 | eutectic: liq. -> tetra(In) + In7Pt3 | liq.: Pt 0.0053; tetra(In): Pt 0; In7Pt3: In 0.7, Pt 0.3 | model | [1] Liang 2009 | Table 2, p. 4, row 1; `ORC-PCMWRI3MTH` |  |

## Other properties

### Phase transition (1)

Table: Phase transition, In–Pt system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase transition | 1312 K | 1312 | liq + In3Pt2 + In2Pt | model | [1] Liang 2009; _cites Okamoto 2005_ [doi](https://doi.org/10.1007/s11669-005-0104-6) | p. 4; `ORC-U7CSRSPR4F` | “The invariant reaction liq. + In3 Pt2 → In2 Pt at 1312 K was reviewed by Okamoto \[6\].” |

## Sources

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

1. Yu Liang, Cuiping Guo, Changrong Li, Zhenmin Du, Thermodynamic modeling of the In–Pt system, Journal of Alloys and Compounds 475, 220-226 (2009). [doi:10.1016/j.jallcom.2008.07.086](https://doi.org/10.1016/j.jallcom.2008.07.086)

## 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/).