# Al–Pt system

> Al–Pt system: 44 accepted literature values (crystal structure 23, invariant reaction 15, phase transition 6) and 2 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

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

44 accepted literature values from 1 paper(s) (experimental 10, model 34); 2 calculated phase diagram(s). 33 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/AL-PT.json) · [CSV](https://data.orchid-project.org/systems/AL-PT.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#AL-PT) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#AL-PT/AlPt-00Wu.json) · [phases (14)](https://data.orchid-project.org/phases/pages/AL-PT.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/AL-PT.html) · [Markdown](https://data.orchid-project.org/systems/AL-PT.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 10 |
| model | 34 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 15 |
| phase transition | 6 |
| crystal structure | 23 |

## 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 |
|---|---|---|---|
| AlPt-00Wu.tdb | K. Wu, Z. Jin, J. Phase Equilib., 21, 221-26(2000). [doi:10.1361/105497100770340011](https://doi.org/10.1361/105497100770340011) | `ff7e2a521050dadbd49c60beb539c345c2e43ccec440c7dfb4d82f331b890d40` | [viewer](https://orchid-project.org/phase-diagrams/#AL-PT/AlPt-00Wu.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlPt-00Wu.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlPt-00Wu.json) |
| AlPt-16Liu.tdb | X.L. Liu, G. Lindwall, R. Otis, H.Kim, Z.-K. Liu, Calphad, 55, 88-102(2016). [doi:10.1016/j.calphad.2016.08.002](https://doi.org/10.1016/j.calphad.2016.08.002) | `98460d9947af8257d6bbb5cc65eb642767b26b2dc42544ab8cd8fd73b752e833` | [viewer](https://orchid-project.org/phase-diagrams/#AL-PT/AlPt-16Liu.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlPt-16Liu.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlPt-16Liu.json) |

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

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| AlPt-00Wu.tdb | 1766.41 | AL3PT2_D513 (x(Pt) 0.4) + LIQUID (x(Pt) 0.44062) + ALPT_B20 (x(Pt) 0.5) |
| AlPt-00Wu.tdb | 1766.41 | AL3PT2_D513 (x(Pt) 0.4) + LIQUID (x(Pt) 0.44047) + ALPT_B20 (x(Pt) 0.5) |
| AlPt-00Wu.tdb | 1766.41 | AL3PT2_D513 (x(Pt) 0.4) + LIQUID (x(Pt) 0.44069) + ALPT_B20 (x(Pt) 0.5) |
| AlPt-00Wu.tdb | 1764.92 | ALPT3_L12 (x(Pt) 0.75) + LIQUID (x(Pt) 0.79645) + FCC_A1 (x(Pt) 0.81759) |
| AlPt-00Wu.tdb | 1764.92 | ALPT3_L12 (x(Pt) 0.75) + LIQUID (x(Pt) 0.79656) + FCC_A1 (x(Pt) 0.81769) |
| AlPt-00Wu.tdb | 1695.72 | ALPT_B20 (x(Pt) 0.5) + LIQUID (x(Pt) 0.58188) + AL3PT5 (x(Pt) 0.625) |
| AlPt-00Wu.tdb | 1679.96 | AL3PT5 (x(Pt) 0.625) + LIQUID (x(Pt) 0.67388) + ALPT3_L12 (x(Pt) 0.74983) |
| AlPt-00Wu.tdb | 1677.09 | LIQUID (x(Pt) 0.31238) + AL2PT_C1 (x(Pt) 0.33333) + AL3PT2_D513 (x(Pt) 0.4) |
| AlPt-00Wu.tdb | 1677.09 | LIQUID (x(Pt) 0.31259) + AL2PT_C1 (x(Pt) 0.33333) + AL3PT2_D513 (x(Pt) 0.4) |
| AlPt-00Wu.tdb | 1400.12 | LIQUID (x(Pt) 0.17564) + AL21PT8 (x(Pt) 0.27586) + AL2PT_C1 (x(Pt) 0.33333) |
| AlPt-00Wu.tdb | 1400.12 | LIQUID (x(Pt) 0.17586) + AL21PT8 (x(Pt) 0.27586) + AL2PT_C1 (x(Pt) 0.33333) |
| AlPt-00Wu.tdb | 1400.11 | LIQUID (x(Pt) 0.17572) + AL21PT8 (x(Pt) 0.27586) + AL2PT_C1 (x(Pt) 0.33333) |
| AlPt-00Wu.tdb | 1082.2 | LIQUID (x(Pt) 0.0471) + AL21PT5 (x(Pt) 0.19231) + AL21PT8 (x(Pt) 0.27586) |
| AlPt-00Wu.tdb | 1082.2 | LIQUID (x(Pt) 0.04711) + AL21PT5 (x(Pt) 0.19231) + AL21PT8 (x(Pt) 0.27586) |
| AlPt-00Wu.tdb | 1082.2 | LIQUID (x(Pt) 0.04703) + AL21PT5 (x(Pt) 0.19231) + AL21PT8 (x(Pt) 0.27586) |
| AlPt-00Wu.tdb | 928.07 | FCC_A1 (x(Pt) 7.000e-5) + LIQUID (x(Pt) 0.00767) + AL21PT5 (x(Pt) 0.19231) |
| AlPt-00Wu.tdb | 928.07 | FCC_A1 (x(Pt) 7.000e-5) + LIQUID (x(Pt) 0.00761) + AL21PT5 (x(Pt) 0.19231) |
| AlPt-16Liu.tdb | 1820.68 | FCC_4SL#2 (x(Pt) 0.7633) + LIQUID (x(Pt) 0.81515) + FCC_4SL (x(Pt) 0.87074) |
| AlPt-16Liu.tdb | 1820.68 | FCC_4SL (x(Pt) 0.7633) + LIQUID (x(Pt) 0.81515) + FCC_4SL#2 (x(Pt) 0.87074) |
| AlPt-16Liu.tdb | 1820.68 | FCC_4SL (x(Pt) 0.7633) + LIQUID (x(Pt) 0.81515) + FCC_4SL#2 (x(Pt) 0.87074) |
| AlPt-16Liu.tdb | 1762.63 | AL3PT2_D513 (x(Pt) 0.4) + LIQUID (x(Pt) 0.43654) + B2_BCC (x(Pt) 0.49818) |
| AlPt-16Liu.tdb | 1762.63 | AL3PT2_D513 (x(Pt) 0.4) + LIQUID (x(Pt) 0.43654) + B2_BCC (x(Pt) 0.49818) |
| AlPt-16Liu.tdb | 1701.88 | AL3PT5 (x(Pt) 0.625) + LIQUID (x(Pt) 0.6296) + FCC_4SL (x(Pt) 0.72612) |
| AlPt-16Liu.tdb | 1701.88 | AL3PT5 (x(Pt) 0.625) + LIQUID (x(Pt) 0.6296) + FCC_4SL (x(Pt) 0.72612) |
| AlPt-16Liu.tdb | 1700.35 | B2_BCC (x(Pt) 0.55566) + LIQUID (x(Pt) 0.61176) + AL3PT5 (x(Pt) 0.625) |
| AlPt-16Liu.tdb | 1654.35 | LIQUID (x(Pt) 0.28976) + AL2PT_C1 (x(Pt) 0.33333) + AL3PT2_D513 (x(Pt) 0.4) |
| AlPt-16Liu.tdb | 1654.35 | LIQUID (x(Pt) 0.29006) + AL2PT_C1 (x(Pt) 0.33333) + AL3PT2_D513 (x(Pt) 0.4) |
| AlPt-16Liu.tdb | 1621.35 | AL3PT5 (x(Pt) 0.625) + ALPT2 (x(Pt) 0.66667) + FCC_4SL (x(Pt) 0.73249) |
| AlPt-16Liu.tdb | 1564.86 | AL3PT2_D513 (x(Pt) 0.4) + B2_BCC (x(Pt) 0.49987) + ALPT_B20 (x(Pt) 0.5) |
| AlPt-16Liu.tdb | 1534.5 | ALPT_B20 (x(Pt) 0.5) + B2_BCC (x(Pt) 0.51742) + AL3PT5 (x(Pt) 0.625) |
| AlPt-16Liu.tdb | 1406.74 | LIQUID (x(Pt) 0.16163) + AL21PT8 (x(Pt) 0.27586) + AL2PT_C1 (x(Pt) 0.33333) |
| AlPt-16Liu.tdb | 1406.74 | LIQUID (x(Pt) 0.16155) + AL21PT8 (x(Pt) 0.27586) + AL2PT_C1 (x(Pt) 0.33333) |
| AlPt-16Liu.tdb | 1406.74 | LIQUID (x(Pt) 0.1617) + AL21PT8 (x(Pt) 0.27586) + AL2PT_C1 (x(Pt) 0.33333) |
| AlPt-16Liu.tdb | 1324.83 | ALPT2 (x(Pt) 0.66667) + FCC_4SL (x(Pt) 0.74825) + FCC_4SL#2 (x(Pt) 0.74825) |
| AlPt-16Liu.tdb | 1085.55 | LIQUID (x(Pt) 0.04183) + AL21PT5 (x(Pt) 0.19231) + AL21PT8 (x(Pt) 0.27586) |
| AlPt-16Liu.tdb | 1085.55 | LIQUID (x(Pt) 0.04192) + AL21PT5 (x(Pt) 0.19231) + AL21PT8 (x(Pt) 0.27586) |
| AlPt-16Liu.tdb | 1085.55 | LIQUID (x(Pt) 0.04179) + AL21PT5 (x(Pt) 0.19231) + AL21PT8 (x(Pt) 0.27586) |
| AlPt-16Liu.tdb | 928.58 | FCC_A1 (x(Pt) 0) + LIQUID (x(Pt) 0.00713) + AL21PT5 (x(Pt) 0.19231) |
| AlPt-16Liu.tdb | 928.58 | FCC_4SL (x(Pt) 0) + LIQUID (x(Pt) 0.00705) + AL21PT5 (x(Pt) 0.19231) |
| AlPt-16Liu.tdb | 928.58 | FCC_A1 (x(Pt) 0) + LIQUID (x(Pt) 0.00705) + AL21PT5 (x(Pt) 0.19231) |
| AlPt-16Liu.tdb | 928.58 | FCC_4SL (x(Pt) 0) + LIQUID (x(Pt) 0.00705) + AL21PT5 (x(Pt) 0.19231) |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/AL/AL-PT.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/AL/AL-PT.json) · [CALPHAD hull AlPt-00Wu](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-PT--AlPt-00Wu.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Al–Pt system (15)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 1780 | eutectic: L -> AlPt3 + (Pt) | L: Pt 0.795; AlPt3: Pt 0.764; (Pt): Pt 0.857 | experimental | [1] Wu 2000; _cites Huch 1964_ [doi](https://doi.org/10.1002/zaac.19643290116) | Table 3, p. 3, row 1; `ORC-LF627RDYHH` |  |
| 1775 | L—AlPt3 + (Pt) | L: Pt 0.801; AlPt3: Pt 0.766; (Pt): Pt 0.821 | model | [1] Wu 2000 | Table 3, p. 3, row 2; `ORC-TQRWLUCRAW` |  |
| 1766 | L—Al3Pt2 + AlPt | L: Pt 0.441; Al3Pt2: Pt 0.399; AlPt: Pt 0.5 | model | [1] Wu 2000 | Table 3, p. 3, row 4; `ORC-J6MNF52XQJ` |  |
| 1741 | eutectic: L -> Al3Pt2 + AlPt | L: Pt 0.447; Al3Pt2: Pt 0.4; AlPt: Pt 0.5 | experimental | [1] Wu 2000; _cites Huch 1964_ [doi](https://doi.org/10.1002/zaac.19643290116) | Table 3, p. 3, row 3; `ORC-XFERZN6DSL` |  |
| 1738 | L + AlPt3 -> Al3Pt5 | L: Pt 0.623; AlPt3: Pt 0.673; Al3Pt5: Pt 0.625 | experimental | [1] Wu 2000; _cites Huch 1964_ [doi](https://doi.org/10.1002/zaac.19643290116) | Table 3, p. 3, row 5; `ORC-PB3WMA32LN` |  |
| 1736 | L + AlPt3—Al3Pt5 | L: Pt 0.624; AlPt3: Pt 0.642; Al3Pt5: Pt 0.625 | model | [1] Wu 2000 | Table 3, p. 3, row 6; `ORC-HKNNJDEY22` |  |
| 1695 | L—AlPt + Al3Pt5 | L: Pt 0.582; AlPt: Pt 0.5; Al3Pt5: Pt 0.625 | model | [1] Wu 2000 | Table 3, p. 3, row 7; `ORC-N6XVHCUH3Q` |  |
| 1679 | L + Al3Pt2 -> Al2Pt | L: Pt 0.318; Al3Pt2: Pt 0.4; Al2Pt: Pt 0.333 | experimental | [1] Wu 2000; _cites Huch 1964_ [doi](https://doi.org/10.1002/zaac.19643290116) | Table 3, p. 3, row 8; `ORC-42YT45H36E` |  |
| 1677 | L + Al3Pt2—Al2Pt | L: Pt 0.312; Al3Pt2: Pt 0.399; Al2Pt: Pt 0.333 | model | [1] Wu 2000 | Table 3, p. 3, row 9; `ORC-OQ2FHZMP6D` |  |
| 1400 | L + Al2Pt—Al21Pt8 | L: Pt 0.175; Al2Pt: Pt 0.333; Al21Pt8: Pt 0.276 | model | [1] Wu 2000 | Table 3, p. 3, row 11; `ORC-E5KUVAIGU6` |  |
| 1400 | L + Al2Pt -> Al21Pt8 | L: Pt 0.188; Al2Pt: Pt 0.326; Al21Pt8: Pt 0.275 | experimental | [1] Wu 2000; _cites Huch 1964_ [doi](https://doi.org/10.1002/zaac.19643290116) | Table 3, p. 3, row 10; `ORC-GH3PRGBOPR` |  |
| 1082 | L + Al21Pt8—Al21Pt5 | L: Pt 0.05; Al21Pt8: Pt 0.276; Al21Pt5: Pt 0.192 | model | [1] Wu 2000 | Table 3, p. 3, row 13; `ORC-6SC4DQCQUE` |  |
| 1079 | L + Al21Pt8 -> Al21Pt5 | L: Pt 0.031; Al21Pt8: Pt 0.275; Al21Pt5: Pt 0.192 | experimental | [1] Wu 2000; _cites Huch 1964_ [doi](https://doi.org/10.1002/zaac.19643290116) | Table 3, p. 3, row 12; `ORC-YCZURTD2XD` |  |
| 930 | eutectic: L -> (Al) + Al21Pt5 | L: Pt 0.004; (Al): Pt 0; Al21Pt5: Pt 0.192 | experimental | [1] Wu 2000; _cites Huch 1964_ [doi](https://doi.org/10.1002/zaac.19643290116) | Table 3, p. 3, row 14; `ORC-ZJJZ7SNQQL` |  |
| 928 | L—(Al) + Al21Pt5 | L: Pt 0.007; (Al): Pt 0; Al21Pt5: Pt 0.192 | model | [1] Wu 2000 | Table 3, p. 3, row 15; `ORC-7I47DELRK4` |  |

## Other properties

### Phase transition (6)

Table: Phase transition, Al–Pt system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase transition | 1795 K | 1795 | L—Al3Pt2; _Al3Pt2: Pt 0.4_ | model | [1] Wu 2000 | Table 3, p. 3, row 21; `ORC-IKC2B2C7A5` |  |
| Phase transition | 1800 K | 1800 | L -> Al3Pt2; _Al3Pt2: Pt 0.4_ | experimental | [1] Wu 2000; _cites Huch 1964_ [doi](https://doi.org/10.1002/zaac.19643290116) | Table 3, p. 3, row 20; `ORC-BFLFLMJHZC` |  |
| Phase transition | 1826 K | 1826 | L—AlPt; _AlPt: Pt 0.5_ | model | [1] Wu 2000 | Table 3, p. 3, row 19; `ORC-AIKVCLKWAQ` |  |
| Phase transition | 1827 K | 1827 | L -> AlPt; _AlPt: Pt 0.5_ | experimental | [1] Wu 2000; _cites Huch 1964_ [doi](https://doi.org/10.1002/zaac.19643290116) | Table 3, p. 3, row 18; `ORC-2FKXMSBFCM` |  |
| Phase transition | 1829 K | 1829 | L -> AlPt3; _L: Pt 0.732; AlPt3: Pt 0.75_ | experimental | [1] Wu 2000; _cites Huch 1964_ [doi](https://doi.org/10.1002/zaac.19643290116) | Table 3, p. 3, row 16; `ORC-LZAFFINNDU` |  |
| Phase transition | 1835 K | 1835 | L—AlPt3; _L: Pt 0.742; AlPt3: Pt 0.75_ | model | [1] Wu 2000 | Table 3, p. 3, row 17; `ORC-KPCOGJLJZD` |  |

### Crystal structure (23)

Table: Crystal structure, Al–Pt system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Lattice a | 3.87 Å |  | AlPt3(HT); _alloy: Pt 0.75_ | model | [1] Wu 2000 | Table 1, p. 2, row 20; `ORC-7OODOGX7UM` |  |
| Lattice a | 3.876 Å |  | AlPt3(HT); _alloy: Pt 0.75_ | model | [1] Wu 2000 | Table 1, p. 2, row 21; `ORC-BCLMNBYC7M` |  |
| Lattice a | 19.32 Å | 298.15 | Al21Pt5; _Al21Pt5: Al 0.808, Pt 0.192_ | model | [1] Wu 2000 | Table 1, p. 2, row 2; `ORC-HV5MLHXSLY` |  |
| Lattice a | 19.23 Å | 298.15 | Al21Pt5; _Al21Pt5: Al 0.808, Pt 0.192_ | model | [1] Wu 2000 | Table 1, p. 2, row 1; `ORC-OGVQ45P2WH` |  |
| Lattice a | 12.964 Å | 298.15 | Al21Pt8; _Al21Pt8: Al 0.73, Pt 0.27_ | model | [1] Wu 2000 | Table 1, p. 2, row 4; `ORC-FO2JNNFVTN.178fe0` |  |
| Lattice a | 12.97 Å | 298.15 | Al21Pt8; _Al21Pt8: Al 0.73, Pt 0.27_ | model | [1] Wu 2000 | Table 1, p. 2, row 3; `ORC-GU5A4HC2UI.6792cc` |  |
| Lattice a | 5.92 Å | 298.15 | Al2Pt; _Al2Pt: Al 0.68, Pt 0.32_ | model | [1] Wu 2000 | Table 1, p. 2, row 8; `ORC-7QYB4JQCIX` |  |
| Lattice a | 5.992 Å | 298.15 | Al2Pt; _alloy: Pt 0.333333_ | model | [1] Wu 2000 | Table 1, p. 2, row 5; `ORC-HA2K7SACIZ` |  |
| Lattice a | 5.91 Å | 298.15 | Al2Pt; _Al2Pt: Al 0.67, Pt 0.33_ | model | [1] Wu 2000 | Table 1, p. 2, row 7; `ORC-NRPWH6MB6G` |  |
| Lattice a | 5.91 Å | 298.15 | Al2Pt; _alloy: Pt 0.333333_ | model | [1] Wu 2000 | Table 1, p. 2, row 6; `ORC-WRVKBSEXYQ` |  |
| Lattice a | 4.208 Å | 298.15 | Al3Pt2; _Al3Pt2: Al 0.6, Pt 0.4_ | model | [1] Wu 2000 | Table 1, p. 2, row 9; `ORC-AIHUQ2YPOV.848400` |  |
| Lattice a | 4.2 Å | 298.15 | Al3Pt2; _Al3Pt2: Al 0.6, Pt 0.4_ | model | [1] Wu 2000 | Table 1, p. 2, row 12; `ORC-RJEZGFKWAY.c6bbc4` |  |
| Lattice a | 4.22 Å | 298.15 | Al3Pt2; _Al3Pt2: Al 0.6, Pt 0.4_ | model | [1] Wu 2000 | Table 1, p. 2, row 10; `ORC-U3YYH36DLM.e86d71` |  |
| Lattice a | 5.41 Å | 298.15 | Al3Pt5; _alloy: Pt 0.625_ | model | [1] Wu 2000 | Table 1, p. 2, row 18; `ORC-OTPOVH57ND.18430a` |  |
| Lattice a | 3.871 Å | 298.15 | Al3Pt5; _Al3Pt5: Al 0.272, Pt 0.728_ | model | [1] Wu 2000 | Table 1, p. 2, row 17; `ORC-YIJYA3AKUB` |  |
| Lattice a | 4.864 Å | 298.15 | AlPt; _AlPt: Al 0.5, Pt 0.5_ | model | [1] Wu 2000 | Table 1, p. 2, row 14; `ORC-6RSUTYXDH2` |  |
| Lattice a | 4.86 Å | 298.15 | AlPt; _AlPt: Al 0.5, Pt 0.5_ | model | [1] Wu 2000 | Table 1, p. 2, row 13; `ORC-SR3EI4Z72S` |  |
| Lattice b | 10.7 Å | 298.15 | Al3Pt5; _alloy: Pt 0.625_ | model | [1] Wu 2000 | Table 1, p. 2, row 18; `ORC-OTPOVH57ND.7fca57` |  |
| Lattice c | 10.684 Å | 298.15 | Al21Pt8; _Al21Pt8: Al 0.73, Pt 0.27_ | model | [1] Wu 2000 | Table 1, p. 2, row 4; `ORC-FO2JNNFVTN.4c50ac` |  |
| Lattice c | 10.66 Å | 298.15 | Al21Pt8; _Al21Pt8: Al 0.73, Pt 0.27_ | model | [1] Wu 2000 | Table 1, p. 2, row 3; `ORC-GU5A4HC2UI.619d24` |  |
| Lattice c | 5.172 Å | 298.15 | Al3Pt2; _Al3Pt2: Al 0.6, Pt 0.4_ | model | [1] Wu 2000 | Table 1, p. 2, row 9; `ORC-AIHUQ2YPOV.40bb33` |  |
| Lattice c | 5.17 Å | 298.15 | Al3Pt2; _Al3Pt2: Al 0.6, Pt 0.4_ | model | [1] Wu 2000 | Table 1, p. 2, row 12; `ORC-RJEZGFKWAY.a7e1be` |  |
| Lattice c | 3.95 Å | 298.15 | Al3Pt5; _alloy: Pt 0.625_ | model | [1] Wu 2000 | Table 1, p. 2, row 18; `ORC-OTPOVH57ND.1076f7` |  |

## Sources

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

1. Kaisheng Wu, Zhanpeng Jin, Thermodynamic assessment of the Al-Pt binary system, JPE 21, 221-226 (2000). [doi:10.1361/105497100770340011](https://doi.org/10.1361/105497100770340011)

## 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/).