Au–La system

43 accepted literature values from 1 paper(s) (experimental 9, model 10, DFT 24); 1 calculated phase diagram(s). 2 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 (11) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	9
model	10
DFT	24

Accepted values by property group
Property group	Values
invariant reaction	10
phase transition	8
formation	6
crystal structure	19

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
AuLa-11Don.tdb	H.Q. Dong, X.M. Tao, H.S. Liu, T. Laurila, M. Paulastro-Krockel, J. Alloys Compd., 509, 4439-44(2011). doi:10.1016/j.jallcom.2011.01.072	`7e2c02c7ae6c5d0b2ce49f6a696d13b9f4d58f4c7b99ec2a19e980ef9c86e024`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
AuLa-11Don.tdb	1418.8	AU2LA (x(La) 0.33333) + LIQUID (x(La) 0.39545) + AULA_B33 (x(La) 0.5)
AuLa-11Don.tdb	1418.8	AU2LA (x(La) 0.33333) + LIQUID (x(La) 0.3955) + AULA_B33 (x(La) 0.5)
AuLa-11Don.tdb	1418.8	AU2LA (x(La) 0.33333) + LIQUID (x(La) 0.39542) + AULA_B33 (x(La) 0.5)
AuLa-11Don.tdb	1402.15	AU51LA14 (x(La) 0.21538) + LIQUID (x(La) 0.26851) + AU2LA (x(La) 0.33333)
AuLa-11Don.tdb	1402.15	AU51LA14 (x(La) 0.21538) + LIQUID (x(La) 0.26862) + AU2LA (x(La) 0.33333)
AuLa-11Don.tdb	1174.59	LIQUID (x(La) 0.11584) + AU6LA (x(La) 0.14286) + AU51LA14 (x(La) 0.21538)
AuLa-11Don.tdb	1174.59	LIQUID (x(La) 0.11595) + AU6LA (x(La) 0.14286) + AU51LA14 (x(La) 0.21538)
AuLa-11Don.tdb	1134	LIQUID (x(La) 0.96871) + FCC_A1 (x(La) 1) + BCC_A2 (x(La) 1)
AuLa-11Don.tdb	1053.53	FCC_A1 (x(La) 0) + LIQUID (x(La) 0.06611) + AU6LA (x(La) 0.14286)
AuLa-11Don.tdb	1053.53	FCC_A1 (x(La) 0) + LIQUID (x(La) 0.06611) + AU6LA (x(La) 0.14286)
AuLa-11Don.tdb	1053.53	FCC_A1 (x(La) 0) + LIQUID (x(La) 0.06607) + AU6LA (x(La) 0.14286)
AuLa-11Don.tdb	941.33	AULA_B33 (x(La) 0.5) + AULA2_C37 (x(La) 0.66667) + LIQUID (x(La) 0.75851)
AuLa-11Don.tdb	941.33	AULA_B33 (x(La) 0.5) + AULA2_C37 (x(La) 0.66667) + LIQUID (x(La) 0.7585)
AuLa-11Don.tdb	932.92	AULA_B33 (x(La) 0.5) + AULA_B27 (x(La) 0.5) + AULA2_C37 (x(La) 0.66667)
AuLa-11Don.tdb	932.92	AU2LA (x(La) 0.33333) + AULA_B27 (x(La) 0.5) + AULA_B33 (x(La) 0.5)
AuLa-11Don.tdb	826.73	AULA2_C37 (x(La) 0.66667) + LIQUID (x(La) 0.83377) + FCC_A1 (x(La) 1)
AuLa-11Don.tdb	826.73	AULA2_C37 (x(La) 0.66667) + LIQUID (x(La) 0.83377) + FCC_A1 (x(La) 1)
AuLa-11Don.tdb	550	AULA2_C37 (x(La) 0.66667) + DHCP (x(La) 1) + FCC_A1 (x(La) 1)

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the Au–La system (10)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1421	L <=> βAuLa + Au2La	L: La 0.373; βAuLa: La 0.5; Au2La: La 0.333333	experimental	[1] Dong 2011 cites Massalski 1990	Table 3, p. 4, row 11 report
1419	L <=> βAuLa + Au2La	L: La 0.395; βAuLa: La 0.5; Au2La: La 0.333333	model	[1] Dong 2011	Table 3, p. 4, row 12 report
1402	L <=> Au2La + Au51La14	L: La 0.269; Au2La: La 0.333333; Au51La14: La 0.215385	model	[1] Dong 2011	Table 3, p. 4, row 14 report
1327	L <=> Au2La + Au51La14	L: La 0.31; Au2La: La 0.333333; Au51La14: La 0.215385	experimental	[1] Dong 2011 cites Massalski 1990	Table 3, p. 4, row 13 report
1175	L + Au51La14 <=> Au6La	L: La 0.116; Au51La14: La 0.215385; Au6La: La 0.142857	model	[1] Dong 2011	Table 3, p. 4, row 18 report
1054	L <=> Au6La + Au(fcc)	L: La 0.066; Au6La: La 0.142857	model	[1] Dong 2011	Table 3, p. 4, row 15 report
941	L + βAuLa <=> AuLa2	L: La 0.758; βAuLa: La 0.5; AuLa2: La 0.666667	model	[1] Dong 2011	Table 3, p. 4, row 10 report
938	L + βAuLa <=> AuLa2	L: La 0.751; βAuLa: La 0.5; AuLa2: La 0.666667	experimental	[1] Dong 2011 cites Massalski 1990	Table 3, p. 4, row 9 report
834	L <=> La(fcc) + AuLa2	L: La 0.84; AuLa2: La 0.666667	experimental	[1] Dong 2011 cites Massalski 1990	Table 3, p. 4, row 1 report
827	L <=> La(fcc) + AuLa2	L: La 0.834; AuLa2: La 0.666667	model	[1] Dong 2011	Table 3, p. 4, row 2 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–La system (6)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	Source	Location
Au2La		-81.5 kJ/mol-atom	0	DFT		[1] Dong 2011	Table 1, p. 3, row 7 report
Au51La14	Au51La14	-57.9 kJ/mol-atom ± 1.9	298.15	experimental	-64.007 (mp-aaacrqeg)	[1] Dong 2011	Table 1, p. 3, row 9 report
AuLa2		-56.6 kJ/mol-atom	0	DFT		[1] Dong 2011	Table 1, p. 3, row 1 report
AuLa6		-45.1 kJ/mol-atom	0	DFT		[1] Dong 2011	Table 1, p. 3, row 11 report
αAuLa		-82 kJ/mol-atom	0	DFT		[1] Dong 2011	Table 1, p. 3, row 3 report
βAuLa		-82.5 kJ/mol-atom	0	DFT		[1] Dong 2011	Table 1, p. 3, row 5 report

Other properties

Phase transition (8)

Phase transition, Au–La system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	933 K	933	βAuLa <=> αAuLa βAuLa: La 0.5; αAuLa: La 0.5	model	[1] Dong 2011	Table 3, p. 4, row 17 report
Phase transition	933 K	933	βAuLa <=> αAuLa βAuLa: La 0.5; αAuLa: La 0.5	experimental	[1] Dong 2011 cites Massalski 1990	Table 3, p. 4, row 16 report
Phase transition	1477 K	1477	L <=> Au51La14 L: La 0.215385; Au51La14: La 0.215385	model	[1] Dong 2011	Table 3, p. 4, row 8 report
Phase transition	1477 K	1477	L <=> Au51La14 L: La 0.215; Au51La14: La 0.215385	experimental	[1] Dong 2011 cites Massalski 1990	Table 3, p. 4, row 7 report
Phase transition	1487 K	1487	L <=> Au2La L: La 0.333; Au2La: La 0.333333	experimental	[1] Dong 2011 cites Massalski 1990	Table 3, p. 4, row 5 report
Phase transition	1490 K	1490	L <=> Au2La L: La 0.333333; Au2La: La 0.333333	model	[1] Dong 2011	Table 3, p. 4, row 6 report
Phase transition	1596 K	1596	L <=> βAuLa L: La 0.5; βAuLa: La 0.5	model	[1] Dong 2011	Table 3, p. 4, row 4 report
Phase transition	1598 K	1598	L <=> βAuLa L: La 0.5; βAuLa: La 0.5	experimental	[1] Dong 2011 cites Massalski 1990	Table 3, p. 4, row 3 report

Crystal structure (19)

Crystal structure, Au–La system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Lattice a printed: a	4.7 Å		Au2La alloy: La 0.333333	DFT	[1] Dong 2011 cites McMasters 1971 doi	Table 1, p. 3, row 8 report
Lattice a printed: Lattice parameter a	4.7 Å	0	Au2La alloy: La 0.333333	DFT	[1] Dong 2011	Table 1, p. 3, row 7 report
Lattice a printed: a	12.87 Å		Au51La14 alloy: La 0.215385	DFT	[1] Dong 2011 cites McMasters 1971 doi	Table 1, p. 3, row 10 report
Lattice a printed: a	7.397 Å	0	AuLa2 alloy: La 0.666667	DFT	[1] Dong 2011	Table 1, p. 3, row 1 report
Lattice a printed: a	7.52 Å		αAuLa alloy: La 0.5	DFT	[1] Dong 2011 cites McMasters 1971 doi	Table 1, p. 3, row 4 report
Lattice a printed: Lattice parameter a	7.52 Å	0	αAuLa alloy: La 0.5	DFT	[1] Dong 2011	Table 1, p. 3, row 3 report
Lattice a printed: a	3.95 Å		βAuLa alloy: La 0.5	DFT	[1] Dong 2011 cites McMasters 1971 doi	Table 1, p. 3, row 6 report
Lattice a printed: a	3.95 Å	0	βAuLa alloy: La 0.5	DFT	[1] Dong 2011	Table 1, p. 3, row 5 report
Lattice b printed: b	7.295 Å		Au2La alloy: La 0.333333	DFT	[1] Dong 2011 cites McMasters 1971 doi	Table 1, p. 3, row 8 report
Lattice b printed: b	7.295 Å	0	Au2La alloy: La 0.333333	DFT	[1] Dong 2011	Table 1, p. 3, row 7 report
Lattice b printed: b	4.69 Å		αAuLa alloy: La 0.5	DFT	[1] Dong 2011 cites McMasters 1971 doi	Table 1, p. 3, row 4 report
Lattice b printed: Lattice parameter b	4.69 Å	0	αAuLa alloy: La 0.5	DFT	[1] Dong 2011	Table 1, p. 3, row 3 report
Lattice b printed: b	11.2 Å		βAuLa alloy: La 0.5	DFT	[1] Dong 2011 cites McMasters 1971 doi	Table 1, p. 3, row 6 report
Lattice b printed: b	11.2 Å	0	βAuLa alloy: La 0.5	DFT	[1] Dong 2011	Table 1, p. 3, row 5 report
Lattice c printed: Lattice parameter c	8.155 Å	0	Au2La alloy: La 0.333333	DFT	[1] Dong 2011	Table 1, p. 3, row 7 report
Lattice c printed: c	9.388 Å		Au51La14 alloy: La 0.215385	DFT	[1] Dong 2011 cites McMasters 1971 doi	Table 1, p. 3, row 10 report
Lattice c printed: c	9.41 Å	0	AuLa2 alloy: La 0.666667	DFT	[1] Dong 2011	Table 1, p. 3, row 1 report
Lattice c printed: Lattice parameter c	5.96 Å	0	αAuLa alloy: La 0.5	DFT	[1] Dong 2011	Table 1, p. 3, row 3 report
Lattice c printed: c	4.78 Å	0	βAuLa alloy: La 0.5	DFT	[1] Dong 2011	Table 1, p. 3, row 5 report

Sources

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

H.Q. Dong, X.M. Tao, H.S. Liu, T. Laurila, M. Paulastro-Kröckel, Thermodynamic assessment of Au–La and Au–Er binary systems, Journal of Alloys and Compounds 509, 4439-4444 (2011). doi:10.1016/j.jallcom.2011.01.072

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}
}