Au system

22 accepted literature values from 7 paper(s) (experimental 13, model 5, DFT 1, unspecified 3); 0 calculated phase diagram(s).

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Accepted values by evidence class
Evidence class	Values
experimental	13
model	5
DFT	1
unspecified	3

Accepted values by property group
Property group	Values
phase transition	2
formation	6
crystal structure	14

Formation enthalpies

Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from dft_parity.json.

Enthalpies of formation, Au system (6)
Phase	Value	T (K)	Class	Source	Location
(Au)	-22.594 kJ/mol-atom	298.15	experimental	[1] Murray 1987 cites Ferro 1966	Table 4, p. 8, row 7 report
(Au)	-9.623 kJ/mol-atom	298.15	experimental	[1] Murray 1987 cites Predel 1970 doi	Table 4, p. 8, row 10 report
(Au)	-8.033 kJ/mol-atom	773.15	experimental	[1] Murray 1987 cites Predel 1970 doi	Table 4, p. 8, row 9 report
(Au)	-4.393 kJ/mol-atom	298.15	experimental	[1] Murray 1987 cites Predel 1970 doi	Table 4, p. 8, row 8 report
fcc(Au)	-15.268 kJ/mol (basis unstated)		model	[2] Liu 2003	Table 3, p. 5, row 2 report
fcc(Au)	-14.411 kJ/mol (basis unstated)	298.15	experimental	[2] Liu 2003 cites Carpenter 1967	Table 3, p. 5, row 1 report

Other properties

Phase transition (2)

Phase transition, Au system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	1335.35 K	1335.35	Au	experimental	[1] Murray 1987 cites ref. 00Hey	p. 1 report	Minor modifications in these temperatures m a y be necessary in the future because the melting points of A1 and Au assumed by [00Hey] to be 655 and 1062.2 ~ respectively, are now accepted as 660.452 and 1064.43 ~ [Melt]9
Phase transition	1337.58 K	1337.58	Au	experimental	[1] Murray 1987	p. 1 report	Minor modifications in these temperatures m a y be necessary in the future because the melting points of A1 and Au assumed by [00Hey] to be 655 and 1062.2 ~ respectively, are now accepted as 660.452 and 1064.43 ~ [Melt]9

Crystal structure (14)

Crystal structure, Au system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Lattice a	4.157 Å		Au Au: Au 1	DFT	[3] Shen 2021	Table 3, p. 6, row 2 report
Lattice a	4.0781 Å	298.15	(Au) (Au): Au 1	unspecified	[1] Murray 1987	Table 3, p. 6, row 40 report
Lattice a	4.0784 Å	298.15	(Au) (Au): Au 1	unspecified	[1] Murray 1987	Table 3, p. 6, row 41 report
Lattice a	4.0784 Å	298.15	Au Au: Au 1	model	[4] Moustaine 2016 cites Gschneidner 1986	Table 1, p. 3, row 1 report
Lattice a	4.0784 Å	298.15	Au Au: Au 1	unspecified	[3] Shen 2021	Table 3, p. 6, row 1 report
Lattice a	4.09 Å	298.15	Au	experimental	[5] Feutelais 1994	Table 3, p. 2, row 5 report
Lattice a	4.093 Å	298.15	Au	experimental	[5] Feutelais 1994	Table 3, p. 2, row 1 report
Lattice a	4.0784 Å	298.15	Au	model	[6] Dong 2013 cites Gschneidner 1987	Table 1, p. 2, row 1 report
Lattice a	4.086 Å	298.15	Au	experimental	[5] Feutelais 1994	Table 3, p. 2, row 9 report
Lattice a	4.089 Å	298.15	Au	experimental	[5] Feutelais 1994	Table 3, p. 2, row 11 report
Lattice a	4.087 Å	298.15	Au	experimental	[5] Feutelais 1994	Table 3, p. 2, row 3 report
Lattice a	4.09 Å	298.15	Au	experimental	[5] Feutelais 1994	Table 3, p. 2, row 7 report
Lattice a	4.072 Å	298.15	Au-fcc alloy: Au 1	model	[7] Ghasemi 2014 cites Liu 2003 doi	Table 1, p. 2, row 1 report
Lattice a	4.072 Å	298.15	Au-fcc	model	[7] Ghasemi 2014 cites Liu 2003 doi	Table 1, p. 2, row 20 report

Sources

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

J. L. Murray, H. Okamoto, T. B. Massalski, The Al−Au (Aluminum-gold) system, Bulletin of Alloy Phase Diagrams 8, 20-30 (1987). doi:10.1007/bf02868887
H.S. Liu, K. Ishida, Z.P. Jin, Y. Du, Thermodynamic assessment of the Au–Zn binary system, Intermetallics 11, 987-994 (2003). doi:10.1016/s0966-9795(03)00115-8
Chen Shen, Kun Hu, Ling Fan, Hongbin Zhang, Thermodynamic Reassessment of the Au-In Binary System Supported with First-Principles Calculations, J. Phase Equilib. Diffus. 42, 479-488 (2021). doi:10.1007/s11669-021-00910-z
D. Moustaine, K. Mahdouk, Thermodynamic reassessment of the cerium gold binary system, Journal of Alloys and Compounds 683, 599-609 (2016). doi:10.1016/j.jallcom.2016.05.116
Y. Feutelais, D. Mouani, J. R. Didry, B. Legendre, The gold-tellurium system, JPE 15, 380-385 (1994). doi:10.1007/bf02647557
H.Q. Dong, X.M. Tao, T. Laurila, V. Vuorinen, M. Paulasto-Kröckel, Thermodynamic modeling of Au–Ce–Sn ternary system, Calphad 42, 38-50 (2013). doi:10.1016/j.calphad.2013.07.013
M. Ghasemi, B. Sundman, S.G. Fries, J. Johansson, The thermodynamic assessment of the Au–In–Ga system, Journal of Alloys and Compounds 600, 178-185 (2014). doi:10.1016/j.jallcom.2014.02.071

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 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_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}
}