Au–Ru system

20 accepted literature values from 1 paper(s) (model 19, unspecified 1); 2 calculated phase diagram(s). 7 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (4) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
model	19
unspecified	1

Accepted values by property group
Property group	Values
phase equilibrium	19
crystal structure	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.

Assessments with a calculated phase diagram
TDB file	Assessment	SHA-256	Links
AuRu-84Oka.tdb	H. Okamoto, T.B. Massalski, Bull. Alloy Phase Diag., 5, 388-90(1984). doi:10.1007/BF02872961	`431b1a82358b61e6ee676da8df7f791a00877be21eb3c1a2380fec6ddb3c8a23`	viewer · TDB · JSON
AuRu-98Spe-LB.tdb	P.J. Spencer, unpublished, 1998.	`21a44838d8ab9cbaa565e03b39cecf89179d6020af95af2e52c40c61493594e9`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
AuRu-84Oka.tdb	2371.94	LIQUID (x(Ru) 0.33567) + LIQUID#2 (x(Ru) 0.66433) + HCP_A3 (x(Ru) 0.99997)
AuRu-84Oka.tdb	1339.45	LIQUID (x(Ru) 0.00626) + FCC_A1 (x(Ru) 0.00816) + HCP_A3 (x(Ru) 0.99995)
AuRu-98Spe-LB.tdb	2372.36	LIQUID (x(Ru) 0.33417) + LIQUID#2 (x(Ru) 0.66583) + HCP_A3 (x(Ru) 0.99997)
AuRu-98Spe-LB.tdb	1338.96	LIQUID (x(Ru) 0.00623) + FCC_A1 (x(Ru) 0.00769) + HCP_A3 (x(Ru) 0.99995)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull AuRu-84Oka

Other properties

Phase equilibrium (19)

Phase equilibrium, Au–Ru system
Property	T (K)	Phases / composition	Class	Source	Location
Phase composition	1339.15	L (L/L + (Ru)) + L L (L/L + (Ru)): Au 0.998, Ru 0.002; L: Au 0.998, Ru 0.002	model	[1] Okamoto 1984	Table 4, p. 3, row 10 report
Phase composition	1473.15	L (L/L + (Ru)) + L L (L/L + (Ru)): Au 0.996, Ru 0.004; L: Au 0.996, Ru 0.004	model	[1] Okamoto 1984	Table 4, p. 3, row 9 report
Phase composition	1873.15	L (L/L + (Ru)) + L L (L/L + (Ru)): Au 0.981, Ru 0.019; L: Au 0.981, Ru 0.019	model	[1] Okamoto 1984	Table 4, p. 3, row 8 report
Phase composition	2273.15	L (L/L + (Ru)) + L L (L/L + (Ru)): Au 0.945, Ru 0.055; L: Au 0.945, Ru 0.055	model	[1] Okamoto 1984	Table 4, p. 3, row 7 report
Phase composition	2285.15	L1 (L1/L1 + L2) + L2 (L2/L1 + L2) + L (L/L + (Ru)) + L1 + L2 + L L1 (L1/L1 + L2): Au 0.726, Ru 0.274; L2 (L2/L1 + L2): Au 0.274, Ru 0.726; L (L/L + (Ru)): Au 0.274, Ru 0.726; L1: Au 0.726, Ru 0.274; L2: Au 0.274, Ru 0.726; L: Au 0.274, Ru 0.726	model	[1] Okamoto 1984	Table 4, p. 3, row 6 report
Phase composition	2373.15	L1 (L1/L1 + L2) + L2 (L2/L1 + L2) + L (L/L + (Ru)) + L1 + L2 + L L1 (L1/L1 + L2): Au 0.664, Ru 0.336; L2 (L2/L1 + L2): Au 0.336, Ru 0.664; L (L/L + (Ru)): Au 0.895, Ru 0.105; L1: Au 0.664, Ru 0.336; L2: Au 0.336, Ru 0.664; L: Au 0.895, Ru 0.105	model	[1] Okamoto 1984	Table 4, p. 3, row 5 report
Phase composition	2414.15	L1 (L1/L1 + L2) + L2 (L2/L1 + L2) + L (L/L + (Ru)) + L1 + L2 + L L1 (L1/L1 + L2): Au 0.881, Ru 0.119; L2 (L2/L1 + L2): Au 0.119, Ru 0.881; L (L/L + (Ru)): Au 0.119, Ru 0.881; L1: Au 0.881, Ru 0.119; L2: Au 0.119, Ru 0.881; L: Au 0.119, Ru 0.881	model	[1] Okamoto 1984	Table 4, p. 3, row 14 report
Phase composition	2423.15	L1 (L1/L1 + L2) + L2 (L2/L1 + L2) + L (L/L + (Ru)) + L1 + L2 + L L1 (L1/L1 + L2): Au 0.61, Ru 0.39; L2 (L2/L1 + L2): Au 0.39, Ru 0.61; L (L/L + (Ru)): Au 0.1, Ru 0.9; L1: Au 0.61, Ru 0.39; L2: Au 0.39, Ru 0.61; L: Au 0.1, Ru 0.9	model	[1] Okamoto 1984	Table 4, p. 3, row 4 report
Phase composition	2453.15	L1 (L1/L1 + L2) + L2 (L2/L1 + L2) + L (L/L + (Ru)) + L1 + L2 + L L1 (L1/L1 + L2): Au 0.556, Ru 0.444; L2 (L2/L1 + L2): Au 0.444, Ru 0.556; L (L/L + (Ru)): Au 0.08, Ru 0.92; L1: Au 0.556, Ru 0.444; L2: Au 0.444, Ru 0.556; L: Au 0.08, Ru 0.92	model	[1] Okamoto 1984	Table 4, p. 3, row 3 report
Phase composition	2473.15	L (L/L + (Ru)) + L + L1 (L1/L1 + L2) + L2 (L2/L1 + L2) + L1 + L2 L (L/L + (Ru)): Au 0.911, Ru 0.089; L: Au 0.911, Ru 0.089; L1 (L1/L1 + L2): Au 0.87, Ru 0.13; L2 (L2/L1 + L2): Au 0.13, Ru 0.87; L1: Au 0.87, Ru 0.13; L2: Au 0.13, Ru 0.87	model	[1] Okamoto 1984	Table 4, p. 3, row 2 report
Phase composition	2496.15	L1 (L1/L1 + L2) + L2 (L2/L1 + L2) + L (L/L + (Ru)) + L1 + L2 + L L1 (L1/L1 + L2): Au 0.906, Ru 0.094; L2 (L2/L1 + L2): Au 0.061, Ru 0.939; L (L/L + (Ru)): Au 0.061, Ru 0.939; L1: Au 0.906, Ru 0.094; L2: Au 0.061, Ru 0.939; L: Au 0.061, Ru 0.939	model	[1] Okamoto 1984	Table 4, p. 3, row 19 report
Phase composition	2523.15	L1 (L1/L1 + L2) + L2 (L2/L1 + L2) + L (L/L + (Ru)) + L1 + L2 + L L1 (L1/L1 + L2): Au 0.902, Ru 0.098; L2 (L2/L1 + L2): Au 0.064, Ru 0.936; L (L/L + (Ru)): Au 0.043, Ru 0.957; L1: Au 0.902, Ru 0.098; L2: Au 0.064, Ru 0.936; L: Au 0.043, Ru 0.957	model	[1] Okamoto 1984	Table 4, p. 3, row 18 report
Phase composition	2573.15	L (L/L + (Ru)) + L + L1 (L1/L1 + L2) + L2 (L2/L1 + L2) + L1 + L2 L (L/L + (Ru)): Au 0.016, Ru 0.984; L: Au 0.016, Ru 0.984; L1 (L1/L1 + L2): Au 0.895, Ru 0.105; L2 (L2/L1 + L2): Au 0.069, Ru 0.931; L1: Au 0.895, Ru 0.105; L2: Au 0.069, Ru 0.931	model	[1] Okamoto 1984	Table 4, p. 3, row 1 report
Phase composition	2873.15	L1 (L1/L1 + L2) + L2 (L2/L1 + L2) + L1 + L2 L1 (L1/L1 + L2): Au 0.843, Ru 0.157; L2 (L2/L1 + L2): Au 0.108, Ru 0.892; L1: Au 0.843, Ru 0.157; L2: Au 0.108, Ru 0.892	model	[1] Okamoto 1984	Table 4, p. 3, row 13 report
Phase composition	3073.15	L1 (L1/L1 + L2) + L2 (L2/L1 + L2) + L1 + L2 L1 (L1/L1 + L2): Au 0.798, Ru 0.202; L2 (L2/L1 + L2): Au 0.143, Ru 0.857; L1: Au 0.798, Ru 0.202; L2: Au 0.143, Ru 0.857	model	[1] Okamoto 1984	Table 4, p. 3, row 12 report
Phase composition	3123.15	L1 (L1/L1 + L2) + L2 (L2/L1 + L2) + L1 + L2 L1 (L1/L1 + L2): Au 0.599, Ru 0.401; L2 (L2/L1 + L2): Au 0.401, Ru 0.599; L1: Au 0.599, Ru 0.401; L2: Au 0.401, Ru 0.599	model	[1] Okamoto 1984	Table 4, p. 3, row 11 report
Phase composition	3273.15	L1 (L1/L1 + L2) + L2 (L2/L1 + L2) + L1 + L2 L1 (L1/L1 + L2): Au 0.741, Ru 0.259; L2 (L2/L1 + L2): Au 0.188, Ru 0.812; L1: Au 0.741, Ru 0.259; L2: Au 0.188, Ru 0.812	model	[1] Okamoto 1984	Table 4, p. 3, row 17 report
Phase composition	3473.15	L1 (L1/L1 + L2) + L2 (L2/L1 + L2) + L1 + L2 L1 (L1/L1 + L2): Au 0.666, Ru 0.334; L2 (L2/L1 + L2): Au 0.253, Ru 0.747; L1: Au 0.666, Ru 0.334; L2: Au 0.253, Ru 0.747	model	[1] Okamoto 1984	Table 4, p. 3, row 16 report
Phase composition	3673.15	L1 (L1/L1 + L2) + L2 (L2/L1 + L2) + L1 + L2 L1 (L1/L1 + L2): Au 0.529, Ru 0.471; L2 (L2/L1 + L2): Au 0.377, Ru 0.623; L1: Au 0.529, Ru 0.471; L2: Au 0.377, Ru 0.623	model	[1] Okamoto 1984	Table 4, p. 3, row 15 report

Crystal structure (1)

Crystal structure, Au–Ru system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Lattice a	4.0784 Å	298.15	(Au)	unspecified	[1] Okamoto 1984	Table 2, p. 2, row 1 report

Sources

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

H. Okamoto, T. B. Massalski, The Au-Ru (Gold-Ruthenium) system, Bulletin of Alloy Phase Diagrams 5, 388-390 (1984). doi:10.1007/bf02872961

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). doi:10.5281/zenodo.23735569
R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). doi: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). doi: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). doi: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.

@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}
}