Au–Te system

28 accepted literature values from 2 paper(s) (experimental 25, model 3); 2 calculated phase diagram(s). 15 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 (6) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	25
model	3

Accepted values by property group
Property group	Values
invariant reaction	10
phase transition	7
formation	4
crystal structure	6
other property	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
AuTe-06Wan.tdb	J. Wang, X.-G. Lu, B. Sundman, X. Su, J. Alloys Compd., 407, 106-11(2006). doi:10.1016/j.jallcom.2005.05.038	`03172f4e43a2f653f818fbbdcc7f41e60472fa03e9582242975439feab85d909`	viewer · TDB · JSON
AuTe-94Feu-LB.tdb	Y. Feutelais, D. Mouani, J.R. Didry, B. Legendre, J. Phase Equilib., 15, 380-85(1994). doi:10.1007/BF02647557	`92fa89b9beed51a93a85bd15ff5130e9d40e9174624824aa1afbe8656d77bd8b`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
AuTe-06Wan.tdb	718.44	FCC_A1 (x(Te) 0) + LIQUID (x(Te) 0.53882) + AUTE2_C34 (x(Te) 0.66667)
AuTe-06Wan.tdb	718.43	FCC_A1 (x(Te) 0) + LIQUID (x(Te) 0.53953) + AUTE2_C34 (x(Te) 0.66667)
AuTe-06Wan.tdb	718.43	FCC_A1 (x(Te) 0) + LIQUID (x(Te) 0.53942) + AUTE2_C34 (x(Te) 0.66667)
AuTe-06Wan.tdb	689.88	AUTE2_C34 (x(Te) 0.66667) + LIQUID (x(Te) 0.87066) + HEXAGONAL_A8 (x(Te) 1)
AuTe-06Wan.tdb	689.88	AUTE2_C34 (x(Te) 0.66667) + LIQUID (x(Te) 0.87069) + HEXAGONAL_A8 (x(Te) 1)
AuTe-94Feu-LB.tdb	719.88	FCC_A1 (x(Te) 0) + LIQUID (x(Te) 0.54578) + AUTE2_C34 (x(Te) 0.66667)
AuTe-94Feu-LB.tdb	719.88	FCC_A1 (x(Te) 0) + LIQUID (x(Te) 0.54553) + AUTE2_C34 (x(Te) 0.66667)
AuTe-94Feu-LB.tdb	688.82	AUTE2_C34 (x(Te) 0.66667) + LIQUID (x(Te) 0.87187) + HEXAGONAL_A8 (x(Te) 1)
AuTe-94Feu-LB.tdb	315.22	FCC_A1 (x(Te) 0) + AUTE2_C34 (x(Te) 0.66667) + HEXAGONAL_A8 (x(Te) 1)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull AuTe-94Feu-LB

Invariant reactions (literature)

Invariant reactions reported in the literature for the Au–Te system (10)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
725	eutectic: Liquid = fcc (Au) + AuTe2	fcc (Au): Te 0; AuTe2: Te 0.666667	experimental	[1] Wang 2006 cites Pelabon 1909	Table 2, p. 3, row 4 report
721	eutectic: Liquid = fcc (Au) + AuTe2	fcc (Au): Te 0; AuTe2: Te 0.666667	experimental	[1] Wang 2006 cites Bergman 1977 doi	Table 2, p. 3, row 3 report
720	eutectic: Liquid = fcc (Au) + AuTe2	fcc (Au): Te 0; AuTe2: Te 0.666667	experimental	[1] Wang 2006 cites Pellini 1910	Table 2, p. 3, row 2 report
718.4	eutectic: Liquid = fcc (Au) + AuTe2	fcc (Au): Te 0; AuTe2: Te 0.666667	model	[1] Wang 2006	Table 2, p. 3, row 5 report
705	eutectic: Liquid = fcc (Au) + AuTe2	fcc (Au): Te 0; AuTe2: Te 0.666667	experimental	[1] Wang 2006 cites Rose 1908	Table 2, p. 3, row 1 report
690	eutectic: Liquid = hex (Te) + AuTe2	hex (Te): Te 1; AuTe2: Te 0.666667	experimental	[1] Wang 2006 cites Bergman 1977 doi	Table 2, p. 3, row 9 report
689.9	eutectic: Liquid = hex (Te) + AuTe2	hex (Te): Te 1; AuTe2: Te 0.666667	model	[1] Wang 2006	Table 2, p. 3, row 10 report
689	eutectic: Liquid = hex (Te) + AuTe2	hex (Te): Te 1; AuTe2: Te 0.666667	experimental	[1] Wang 2006 cites Pellini 1910	Table 2, p. 3, row 8 report
688	eutectic: Liquid = hex (Te) + AuTe2	hex (Te): Te 1; AuTe2: Te 0.666667	experimental	[1] Wang 2006 cites Pelabon 1909	Table 2, p. 3, row 7 report
670	eutectic: Liquid = hex (Te) + AuTe2	hex (Te): Te 1; AuTe2: Te 0.666667	experimental	[1] Wang 2006 cites Rose 1908	Table 2, p. 3, row 6 report

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–Te system (4)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location	Quote
AuTe2	AuTe2	-4.74 kJ/mol-atom	298.15	experimental	-8.675 (mp-aaaabdtz)	-8.029 (oqmd-6956)	[1] Wang 2006 cites Andon 1971 doi	p. 3 report	The data for enthalpy of formation of AuTe2 obtained from vapor pressure measurements by Andon et al. [21] and Veale and Barrett [13] are -4.74 and -3.91 kJ per mole atoms, respectively, at 298 K.
AuTe2	AuTe2	-3.91 kJ/mol-atom	298.15	experimental	-8.675 (mp-aaaabdtz)	-8.029 (oqmd-6956)	[1] Wang 2006 cites Veale 1967 doi	p. 3 report	The data for enthalpy of formation of AuTe2 obtained from vapor pressure measurements by Andon et al. [21] and Veale and Barrett [13] are -4.74 and -3.91 kJ per mole atoms, respectively, at 298 K.
AuTe2	AuTe2	-3 kJ/mol-atom	298.15	experimental	-8.675 (mp-aaaabdtz)	-8.029 (oqmd-6956)	[1] Wang 2006	p. 3 report	They obtained the enthalpy of formation of AuTe2 compound at 298 K (-3.0 kJ per mole of atoms) and the enthalpy of fusion (19.1 kJ per mole of atoms).
AuTe2	AuTe2	-2.5 kJ/mol-atom	728	experimental	-8.675 (mp-aaaabdtz)	-8.029 (oqmd-6956)	[1] Wang 2006 cites Bergman 1977 doi	p. 3 report	The enthalpy of formation of AuTe2 compound at 728 K is -2.5 kJ per mole of atoms and the enthalpy of fusion at 737 K is 18.6 kJ per mole of atoms, which were measured by direct reaction calorimetry [3].

Other properties

Phase transition (7)

Phase transition, Au–Te system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	708.15 K	708.15	AuTe2	experimental	[2] Feutelais 1994 cites Winkler 1964	p. 2 report	Later, [64Win] pointed out a crystalline transformation of the AuTe 2 compound at 435 ~
Phase transition	717.15 K	717.15	AuTe2	experimental	[2] Feutelais 1994 cites ref. 65Cab	p. 2 report	On the same compound, using high temperature X-ray powder diffraction, [65Cab] found at 444 ~ on only one occasion a diffraction pattern different from this one obtained at room temperature.
Phase transition	725 K	725	congruent melting: Liquid = AuTe2 L: Te 0.666667; AuTe2: Te 0.666667	experimental	[1] Wang 2006 cites Rose 1908	Table 2, p. 3, row 12 report
Phase transition	736 K	736	congruent melting: Liquid = AuTe2 L: Te 0.666667; AuTe2: Te 0.666667	experimental	[1] Wang 2006 cites Bergman 1977 doi	Table 2, p. 3, row 13 report
Phase transition	736.75 K	736.75	congruent transformation: 66.67 at.% Te alloy: Au 0.3333, Te 0.6667	experimental	[2] Feutelais 1994	Table I, p. 1, row 27 report
Phase transition	737 K	737	congruent melting: Liquid = AuTe2 L: Te 0.666667; AuTe2: Te 0.666667	experimental	[1] Wang 2006 cites Pellini 1910	Table 2, p. 3, row 11 report
Phase transition	738.4 K	738.4	congruent melting: Liquid = AuTe2 L: Te 0.666667; AuTe2: Te 0.666667	model	[1] Wang 2006	Table 2, p. 3, row 14 report

Crystal structure (6)

Crystal structure, Au–Te system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Lattice a	4.098 Å	298.15	Au alloy: Te 0.5	experimental	[2] Feutelais 1994	Table 3, p. 2, row 4 report
Lattice a	4.108 Å	298.15	Au alloy: Te 0.5	experimental	[2] Feutelais 1994	Table 3, p. 2, row 2 report
Lattice a	4.095 Å	298.15	Au alloy: Te 0.5	experimental	[2] Feutelais 1994	Table 3, p. 2, row 8 report
Lattice a	4.091 Å	298.15	Au alloy: Te 0.5	experimental	[2] Feutelais 1994	Table 3, p. 2, row 10 report
Lattice a	4.097 Å	298.15	Au alloy: Te 0.5	experimental	[2] Feutelais 1994	Table 3, p. 2, row 12 report
Lattice a	4.099 Å	298.15	Au alloy: Te 0.5	experimental	[2] Feutelais 1994	Table 3, p. 2, row 6 report

Other property (1)

Other property, Au–Te system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Other printed: enthalpy of fusion	18.6 kJ per mole of atoms	737		experimental	[1] Wang 2006 cites Bergman 1977 doi	p. 3 report	The enthalpy of formation of AuTe2 compound at 728 K is -2.5 kJ per mole of atoms and the enthalpy of fusion at 737 K is 18.6 kJ per mole of atoms, which were measured by direct reaction calorimetry [3].

Sources

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

Jianhua Wang, Xiao-gang Lu, Bo Sundman, Xuping Su, Thermodynamic reassessment of the Au–Te system, Journal of Alloys and Compounds 407, 106-111 (2006). doi:10.1016/j.jallcom.2005.05.038
Y. Feutelais, D. Mouani, J. R. Didry, B. Legendre, The gold-tellurium system, JPE 15, 380-385 (1994). doi:10.1007/bf02647557

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}
}