Au–Bi system

42 accepted literature values from 3 paper(s) (experimental 27, model 15); 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 · CSV · interactive explorer · interactive phase diagram · phases (6) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	27
model	15

Accepted values by property group
Property group	Values
invariant reaction	41
phase transition	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
AuBi-06Ser.tdb	C. Servant, E. Zoro, B. Legendre, Calphad, 30, 443-48(2006). doi:10.1016/j.calphad.2006.07.002	`211df8efcc0e760472d50337daae2fca1f13b26b574878c63509276ed3dcc76c`	viewer · TDB · JSON
AuBi-07Wan.tdb	J. Wang, F.G. Meng, H.S. Liu, L.B. Liu, Z.P. Jin, J. Electron. Mater., 36, 568-77(2007). doi:10.1007/s11664-007-0090-z	`2708fcbef3e06ed310bb44012c8dd75dd2cbf430191100a6d7c618eced307235`	viewer · TDB · JSON
AuBi-88Che-LB.tdb	P.-Y. Chevalier, Thermochim. Acta, 130, 15-24(1988). doi:10.1016/0040-6031(88)87046-1	`7247b351d3e4203e163fa11853f1b18683fa1275e7c792a1c90be8005e3f9384`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
AuBi-06Ser.tdb	650.71	FCC_A1 (x(Bi) 1.300e-4) + AU2BI_C15 (x(Bi) 0.33333) + LIQUID (x(Bi) 0.66744)
AuBi-06Ser.tdb	650.71	FCC_A1 (x(Bi) 1.300e-4) + AU2BI_C15 (x(Bi) 0.33333) + LIQUID (x(Bi) 0.66713)
AuBi-06Ser.tdb	514.03	AU2BI_C15 (x(Bi) 0.33333) + LIQUID (x(Bi) 0.85419) + RHOMBOHEDRAL_A7 (x(Bi) 1)
AuBi-06Ser.tdb	514.03	AU2BI_C15 (x(Bi) 0.33333) + LIQUID (x(Bi) 0.85465) + RHOMBOHEDRAL_A7 (x(Bi) 1)
AuBi-06Ser.tdb	383.12	FCC_A1 (x(Bi) 0) + AU2BI_C15 (x(Bi) 0.33333) + RHOMBOHEDRAL_A7 (x(Bi) 1)
AuBi-07Wan.tdb	651.15	FCC_A1 (x(Bi) 5.000e-5) + AU2BI_C15 (x(Bi) 0.33333) + LIQUID (x(Bi) 0.68091)
AuBi-07Wan.tdb	651.15	FCC_A1 (x(Bi) 5.000e-5) + AU2BI_C15 (x(Bi) 0.33333) + LIQUID (x(Bi) 0.68052)
AuBi-07Wan.tdb	651.15	FCC_A1 (x(Bi) 5.000e-5) + AU2BI_C15 (x(Bi) 0.33333) + LIQUID (x(Bi) 0.68053)
AuBi-07Wan.tdb	512.86	AU2BI_C15 (x(Bi) 0.33333) + LIQUID (x(Bi) 0.8667) + RHOMBOHEDRAL_A7 (x(Bi) 0.99641)
AuBi-07Wan.tdb	512.86	AU2BI_C15 (x(Bi) 0.33333) + LIQUID (x(Bi) 0.86722) + RHOMBOHEDRAL_A7 (x(Bi) 0.99643)
AuBi-07Wan.tdb	375.07	FCC_A1 (x(Bi) 0) + AU2BI_C15 (x(Bi) 0.33333) + RHOMBOHEDRAL_A7 (x(Bi) 0.99937)
AuBi-07Wan.tdb	375.07	FCC_A1 (x(Bi) 0) + AU2BI_C15 (x(Bi) 0.33333) + RHOMBOHEDRAL_A7 (x(Bi) 0.99937)
AuBi-07Wan.tdb	375.07	FCC_A1 (x(Bi) 0) + AU2BI_C15 (x(Bi) 0.33333) + RHOMBOHEDRAL_A7 (x(Bi) 0.99937)
AuBi-88Che-LB.tdb	647.32	FCC_A1 (x(Bi) 4.000e-5) + AU2BI_C15 (x(Bi) 0.33333) + LIQUID (x(Bi) 0.66678)
AuBi-88Che-LB.tdb	647.32	FCC_A1 (x(Bi) 4.000e-5) + AU2BI_C15 (x(Bi) 0.33333) + LIQUID (x(Bi) 0.66656)
AuBi-88Che-LB.tdb	514.32	AU2BI_C15 (x(Bi) 0.33333) + LIQUID (x(Bi) 0.86702) + RHOMBOHEDRAL_A7 (x(Bi) 1)
AuBi-88Che-LB.tdb	514.32	AU2BI_C15 (x(Bi) 0.33333) + LIQUID (x(Bi) 0.86763) + RHOMBOHEDRAL_A7 (x(Bi) 1)
AuBi-88Che-LB.tdb	349.81	FCC_A1 (x(Bi) 0) + AU2BI_C15 (x(Bi) 0.33333) + RHOMBOHEDRAL_A7 (x(Bi) 1)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull AuBi-06Ser · CALPHAD hull AuBi-88Che-LB

Invariant reactions (literature)

Invariant reactions reported in the literature for the Au–Bi system (41)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1337.58	congruent melting: Au(fcc) ⇌ Au(liq)	Au(liq): Bi 0	experimental	[1] Chevalier 1988 cites Okamoto 1983 doi	Table 2, p. 6, row 2 report
1337.58	congruent melting: Au(fcc) ⇌ Au(liq)	Au(liq): Bi 0	model	[1] Chevalier 1988	Table 2, p. 6, row 1 report
668	Fcc + L <-> Au2Bi	Au2Bi: Au 0.666667, Bi 0.333333	experimental	[2] Servant 2006 cites Wallbrecht 1981 doi	Table 1, p. 2, row 10 report
651	Fcc + L <-> Au2Bi	L: Bi 0.666; Au2Bi: Au 0.666667, Bi 0.333333	experimental	[2] Servant 2006 cites Evans 1983	Table 1, p. 2, row 8 report
651	peritectic: fcc + (L) ⇌ Au2Bi	L: Bi 0.666; Au2Bi: Au 0.666667, Bi 0.333333	experimental	[1] Chevalier 1988 cites Evans 1983	Table 2, p. 6, row 9 report
650.7	Fcc + L <-> Au2Bi	Au2Bi: Au 0.666667, Bi 0.333333	experimental	[2] Servant 2006 cites Zoro 2005	Table 1, p. 2, row 4 report
650.7	Fcc + L <-> Au2Bi	L: Bi 0.6671; Au2Bi: Au 0.666667, Bi 0.333333; fcc: Bi 1.320e-4	model	[2] Servant 2006	Table 1, p. 2, row 1 report
650.5	Fcc + L <-> Au2Bi	Au2Bi: Au 0.666667, Bi 0.333333	experimental	[2] Servant 2006 cites Evans 1983	Table 1, p. 2, row 5 report
647.8	peritectic: fcc + (L) ⇌ Au2Bi	fcc: Bi 4.400e-5; L: Bi 0.667; Au2Bi: Au 0.666667, Bi 0.333333	model	[1] Chevalier 1988	Table 2, p. 6, row 5 report
647.8	peritectic: fcc + (L) ⇌ Au2Bi	fcc: Bi 4.900e-5; L: Bi 0.667; Au2Bi: Au 0.666667, Bi 0.333333	model	[1] Chevalier 1988	Table 2, p. 6, row 6 report
647.8	Fcc + L <-> Au2Bi	L: Bi 0.667; Au2Bi: Au 0.666667, Bi 0.333333; fcc: Bi 4.400e-5	model	[2] Servant 2006 cites Chevalier 1988 doi	Table 1, p. 2, row 2 report
647.8	Fcc + L <-> Au2Bi	L: Bi 0.667; Au2Bi: Au 0.666667, Bi 0.333333; fcc: Bi 4.900e-5	model	[2] Servant 2006 cites Chevalier 1988 doi	Table 1, p. 2, row 3 report
646	Fcc + L <-> Au2Bi	L: Bi 0.68; Au2Bi: Au 0.666667, Bi 0.333333	experimental	[2] Servant 2006 cites Gather 1975	Table 1, p. 2, row 7 report
646	peritectic: fcc + (L) ⇌ Au2Bi	Au2Bi: Au 0.666667, Bi 0.333333	experimental	[1] Chevalier 1988 cites Jurriaanse 1948	Table 2, p. 6, row 10 report
646	peritectic: fcc + (L) ⇌ Au2Bi	L: Bi 0.68; Au2Bi: Au 0.666667, Bi 0.333333	experimental	[1] Chevalier 1988 cites Gather 1975	Table 2, p. 6, row 8 report
644	Fcc + L <-> Au2Bi	Au2Bi: Au 0.666667, Bi 0.333333	experimental	[2] Servant 2006 cites Hultgren 1973	Table 1, p. 2, row 9 report
644	Fcc + L <-> Au2Bi	L: Bi 0.669; Au2Bi: Au 0.666667, Bi 0.333333	experimental	[2] Servant 2006 cites Nathans 1962	Table 1, p. 2, row 6 report
644	peritectic: fcc + (L) ⇌ Au2Bi	L: Bi 0.669; Au2Bi: Au 0.666667, Bi 0.333333	experimental	[1] Chevalier 1988 cites Nathans 1962	Table 2, p. 6, row 7 report
520	L <-> Au2Bi + (Bi)	Au2Bi: Au 0.666667, Bi 0.333333	experimental	[2] Servant 2006 cites Wallbrecht 1981 doi	Table 1, p. 2, row 19 report
515.1	L <-> Au2Bi + (Bi)	Au2Bi: Au 0.666667, Bi 0.333333	experimental	[2] Servant 2006 cites Zoro 2005	Table 1, p. 2, row 13 report
514.4	eutectic: (L) ⇌ Au2Bi + Bi(rho)	L: Bi 0.868; Au2Bi: Au 0.666667, Bi 0.333333	model	[1] Chevalier 1988	Table 2, p. 6, row 11 report
514.4	L <-> Au2Bi + (Bi)	L: Bi 0.868; Au2Bi: Au 0.666667, Bi 0.333333	model	[2] Servant 2006 cites Chevalier 1988 doi	Table 1, p. 2, row 12 report
514.25	eutectic: (L) ⇌ Au2Bi + Bi(rho)	L: Bi 0.868; Au2Bi: Au 0.666667, Bi 0.333333	experimental	[1] Chevalier 1988 cites Nathans 1962	Table 2, p. 6, row 14 report
514.15	eutectic: (L) ⇌ Au2Bi + Bi(rho)	L: Bi 0.86; Au2Bi: Au 0.666667, Bi 0.333333	experimental	[1] Chevalier 1988 cites Vogel 1906 doi	Table 2, p. 6, row 12 report
514.1	L <-> Au2Bi + (Bi)	L: Bi 0.868; Au2Bi: Au 0.666667, Bi 0.333333	experimental	[2] Servant 2006 cites Nathans 1962	Table 1, p. 2, row 16 report
514	L <-> Au2Bi + (Bi)	L: Bi 0.864; Au2Bi: Au 0.666667, Bi 0.333333	experimental	[2] Servant 2006 cites Evans 1983	Table 1, p. 2, row 18 report
514	L <-> Au2Bi + (Bi)	L: Bi 0.8544; Au2Bi: Au 0.666667, Bi 0.333333	model	[2] Servant 2006	Table 1, p. 2, row 11 report
514	eutectic: (L) ⇌ Au2Bi + Bi(rho)	L: Bi 0.864; Au2Bi: Au 0.666667, Bi 0.333333	experimental	[1] Chevalier 1988 cites Evans 1983	Table 2, p. 6, row 16 report
514	L <-> Au2Bi + (Bi)	L: Bi 0.85; Au2Bi: Au 0.666667, Bi 0.333333	experimental	[2] Servant 2006 cites Gather 1975	Table 1, p. 2, row 17 report
514	eutectic: (L) ⇌ Au2Bi + Bi(rho)	L: Bi 0.85; Au2Bi: Au 0.666667, Bi 0.333333	experimental	[1] Chevalier 1988 cites Gather 1975	Table 2, p. 6, row 15 report
513.44	L <-> Au2Bi + (Bi)	L: Bi 0.81; Au2Bi: Au 0.666667, Bi 0.333333	experimental	[2] Servant 2006 cites Vogel 1906 doi	Table 1, p. 2, row 14 report
513	L <-> Au2Bi + (Bi)	L: Bi 0.8236; Au2Bi: Au 0.666667, Bi 0.333333	experimental	[2] Servant 2006 cites Hajicek 1948	Table 1, p. 2, row 15 report
513	eutectic: (L) ⇌ Au2Bi + Bi(rho)	L: Bi 0.8236; Au2Bi: Au 0.666667, Bi 0.333333	experimental	[1] Chevalier 1988 cites ref. 11	Table 2, p. 6, row 13 report
389	other: Au2Bi ⇌ fcc + Bi(rho)	Au2Bi: Au 0.666667, Bi 0.333333	experimental	[1] Chevalier 1988 cites Okamoto 1983 doi	Table 2, p. 6, row 19 report
389	Au2Bi <-> fcc + (Bi)	Au2Bi: Au 0.666667, Bi 0.333333	experimental	[2] Servant 2006 cites Okamoto 1983 doi	Table 1, p. 2, row 23 report
383.1	Au2Bi <-> fcc + (Bi)	Au2Bi: Au 0.666667, Bi 0.333333	model	[2] Servant 2006	Table 1, p. 2, row 20 report
382.7	Au2Bi <-> fcc + (Bi)	Au2Bi: Au 0.666667, Bi 0.333333	model	[2] Servant 2006 cites Chevalier 1988 doi	Table 1, p. 2, row 21 report
382.7	other: Au2Bi ⇌ fcc + Bi(rho)	Au2Bi: Au 0.666667, Bi 0.333333	model	[1] Chevalier 1988	Table 2, p. 6, row 17 report
349.8	Au2Bi <-> fcc + (Bi)	Au2Bi: Au 0.666667, Bi 0.333333	model	[2] Servant 2006 cites Chevalier 1988 doi	Table 1, p. 2, row 22 report
349.8	other: Au2Bi ⇌ fcc + Bi(rho)	Au2Bi: Au 0.666667, Bi 0.333333	model	[1] Chevalier 1988	Table 2, p. 6, row 18 report
	Au2Bi <-> fcc + (Bi)	Au2Bi: Au 0.666667, Bi 0.333333	experimental	[2] Servant 2006 cites Evans 1983	Table 1, p. 2, row 24 report

Other properties

Phase transition (1)

Phase transition, Au–Bi system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	389 K	389	other	model	[3] Wang 2007 cites Okamoto 1983 doi	p. 2 report	By thermodynamic calculation, Okamoto et al.14 also predicted the decomposition of Au2Bi phase at 389 K.

Sources

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

P.-Y. Chevalier, Thermodynamic evaluation of the Au-Bi system, Thermochimica Acta 130, 15-24 (1988). doi:10.1016/0040-6031(88)87046-1
C. Servant, E. Zoro, B. Legendre, Thermodynamic reassessment of the Au–Bi system, Calphad 30, 443-448 (2006). doi:10.1016/j.calphad.2006.07.002
J. Wang, F.G. Meng, H.S. Liu, L.B. Liu, Z.P. Jin, Thermodynamic Modeling of the Au-Bi-Sb Ternary System, Journal of Elec Materi 36, 568-577 (2007). doi:10.1007/s11664-007-0090-z

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}
}