# Au–Ni system > Au–Ni system: 9 accepted literature values (mixing / partial 6, phase transition 3) and 3 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote. HTML: https://data.orchid-project.org/systems/AU-NI.html · Markdown: https://data.orchid-project.org/systems/AU-NI.md 9 accepted literature values from 2 paper(s) (experimental 2, model 7); 3 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/AU-NI.json) · [CSV](https://data.orchid-project.org/systems/AU-NI.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#AU-NI) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#AU-NI/AuNi-05Fra.json) · [phases (4)](https://data.orchid-project.org/phases/pages/AU-NI.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/AU-NI.html) · [Markdown](https://data.orchid-project.org/systems/AU-NI.md) Table: Accepted values by evidence class | Evidence class | Values | |---|---:| | experimental | 2 | | model | 7 | Table: Accepted values by property group | Property group | Values | |---|---:| | phase transition | 3 | | mixing / partial | 6 | ## 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a calculated phase diagram | TDB file | Assessment | SHA-256 | Links | |---|---|---|---| | AuNi-05Fra.tdb | P. Franke, unpublished work, 2005. | `4fddd1656b2b994ea8c89f4d63b8332a06a3b83e0c9deb61344e468b23d2f472` | [viewer](https://orchid-project.org/phase-diagrams/#AU-NI/AuNi-05Fra.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AuNi-05Fra.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AuNi-05Fra.json) | | AuNi-05Wan-LB.tdb | J. Wang, X.-G. Lu, B. Sundman, X. Su, Calphad, 29, 263-68(2005). [doi:10.1016/j.calphad.2005.09.004](https://doi.org/10.1016/j.calphad.2005.09.004) | `5b08e4a5043680acf0d050c722ea2408141c98812f8d39c2672ed59c8f512b13` | [viewer](https://orchid-project.org/phase-diagrams/#AU-NI/AuNi-05Wan-LB.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AuNi-05Wan-LB.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AuNi-05Wan-LB.json) | | AuNi-99Mor.tdb | S. Morioka, M. Hasebe, J. Phase Equilib., 20, 244-57(1999). [doi:10.1361/105497199770335785](https://doi.org/10.1361/105497199770335785) | `2c3f71de4250cebd087a3184c2ea0c81095b70ab56625b1ea3074f5b5c68235d` | [viewer](https://orchid-project.org/phase-diagrams/#AU-NI/AuNi-99Mor.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AuNi-99Mor.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AuNi-99Mor.json) | Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/AU/AU-NI.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/AU/AU-NI.json) · [CALPHAD hull AuNi-05Wan-LB](https://data.orchid-project.org/hulls/calphad-sgte/AU/AU-NI--AuNi-05Wan-LB.json) · [CALPHAD hull AuNi-99Mor](https://data.orchid-project.org/hulls/calphad-sgte/AU/AU-NI--AuNi-99Mor.json) ## Other properties ### Phase transition (3) Table: Phase transition, Au–Ni system | Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote | |---|---:|---:|---|---|---|---|---| | Phase transition | 1214.3 K | 1214.3 | congruent transformation: Congruent point; _alloy: Au 0.574, Ni 0.426_ | model | [1] Wang 2005 | Table 2, p. 3, row 1; `ORC-45CZ4P7TXR` | | | Phase transition | 1224 K | 1224 | congruent transformation: Congruent point | experimental | [1] Wang 2005; _cites Esdaile 1971_ | Table 2, p. 3, row 2; `ORC-V6QIPUPBRV` | | | Phase transition | 1228 K | 1228 | congruent transformation: Congruent point; _alloy: Au 0.575, Ni 0.425_ | experimental | [1] Wang 2005; _cites Hansen 1958_ | Table 2, p. 3, row 3; `ORC-EAVFQ66C6J` | | ### Mixing / partial (6) Table: Mixing / partial, Au–Ni system | Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote | |---|---:|---:|---|---|---|---|---| | Enthalpy of mixing; _printed: \|ΔmixH\| (X_Ag = 0.5)_ | -0.134 kJ/mol (basis unstated) | 1750.15 | Liquid | model | [2] Morioka 1999 | Table 7, p. 14, row 1; `ORC-HBINRJQCF2` | | | Enthalpy of mixing; _printed: \|ΔmixH\| (X_Ag = 0.5)_ | 12.109 kJ/mol (basis unstated) | 1750.15 | Liquid | model | [2] Morioka 1999 | Table 7, p. 14, row 2; `ORC-IQWYQEVQB4` | | | Enthalpy of mixing; _printed: \|ΔmixH\| (X_Ag = 0.5)_ | 10 kJ/mol (basis unstated) | 1750.15 | Liquid | model | [2] Morioka 1999 | Table 7, p. 14, row 5; `ORC-U5SK34DIFO` | | | Enthalpy of mixing; _printed: \|ΔmixH\| (X_Ag = 0.5)_ | 9.666 kJ/mol (basis unstated) | 1750.15 | fcc | model | [2] Morioka 1999 | Table 7, p. 14, row 10; `ORC-4GJSQLS5LF` | | | Enthalpy of mixing; _printed: \|ΔmixH\| (X_Ag = 0.5)_ | 2.955 kJ/mol (basis unstated) | 1750.15 | fcc | model | [2] Morioka 1999 | Table 7, p. 14, row 6; `ORC-4NP2CR5FLK` | | | Enthalpy of mixing; _printed: \|ΔmixH\| (X_Ag = 0.5)_ | 7.065 kJ/mol (basis unstated) | 1750.15 | fcc | model | [2] Morioka 1999 | Table 7, p. 14, row 7; `ORC-I26RE4U2ZF` | | ## Sources Reporting papers the values were read from (a value cited from another work names that work in its row). 1. Jianhua Wang, Xiao-Gang Lu, Bo Sundman, Xuping Su, Thermodynamic assessment of the Au–Ni system, Calphad 29, 263-268 (2005). [doi:10.1016/j.calphad.2005.09.004](https://doi.org/10.1016/j.calphad.2005.09.004) 2. S. Morioka, M. Hasebe, Thermodynamic constraints to describe gibbs energies for binary alloys, JPE 20, 244-257 (1999). [doi:10.1361/105497199770335785](https://doi.org/10.1361/105497199770335785) ## 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/).