La–Sb system

30 accepted literature values from 2 paper(s) (experimental 15, model 13, DFT 2); 2 calculated phase diagram(s). 12 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 (10) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	15
model	13
DFT	2

Accepted values by property group
Property group	Values
invariant reaction	22
formation	8

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
LaSb-12Gao.tdb	F. Gao, S.L. Wang, C.P. Wang, X.J. Liu, Calphad, 37, 158-62(2012). doi:10.1016/j.calphad.2012.01.002	`5689268b3e6623ac820acc40781c167233e3c9b4ed2ded51e72045770fd7435a`	viewer · TDB · JSON
LaSb-13Wan.tdb	J. Wang, C. Li, C. Guo, Z. Du, X. Zhao, J. Shen, Thermochim. Acta, 551, 104-9(2013). doi:10.1016/j.tca.2012.10.026	`301a2f87ebb4bfc15613a4d00cc85c517e16b5fa6961fba4095084816fc1e624`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
LaSb-12Gao.tdb	1813.13	LA3SB2 (x(Sb) 0.4) + LASB_B1 (x(Sb) 0.5) + LIQUID (x(Sb) 0.52009)
LaSb-12Gao.tdb	1813.13	LA3SB2 (x(Sb) 0.4) + LASB_B1 (x(Sb) 0.5) + LIQUID (x(Sb) 0.51988)
LaSb-12Gao.tdb	1813.13	LA3SB2 (x(Sb) 0.4) + LASB_B1 (x(Sb) 0.5) + LIQUID (x(Sb) 0.5202)
LaSb-12Gao.tdb	1733.32	LIQUID (x(Sb) 0.25461) + LA2SB (x(Sb) 0.33333) + LA3SB2 (x(Sb) 0.4)
LaSb-12Gao.tdb	1733.31	LIQUID (x(Sb) 0.25441) + LA2SB (x(Sb) 0.33333) + LA3SB2 (x(Sb) 0.4)
LaSb-12Gao.tdb	1382.8	LASB_B1 (x(Sb) 0.5) + LASB2 (x(Sb) 0.66667) + LIQUID (x(Sb) 0.73816)
LaSb-12Gao.tdb	1382.8	LASB_B1 (x(Sb) 0.5) + LASB2 (x(Sb) 0.66667) + LIQUID (x(Sb) 0.73835)
LaSb-12Gao.tdb	1382.79	LASB_B1 (x(Sb) 0.5) + LASB2 (x(Sb) 0.66667) + LIQUID (x(Sb) 0.7383)
LaSb-12Gao.tdb	1134	FCC_A1 (x(Sb) 0) + BCC_A2 (x(Sb) 0) + LIQUID (x(Sb) 0.02268)
LaSb-12Gao.tdb	1117.84	FCC_A1 (x(Sb) 0) + LIQUID (x(Sb) 0.02964) + LA2SB (x(Sb) 0.33333)
LaSb-12Gao.tdb	1117.83	FCC_A1 (x(Sb) 0) + LIQUID (x(Sb) 0.02973) + LA2SB (x(Sb) 0.33333)
LaSb-12Gao.tdb	902.41	LASB2 (x(Sb) 0.66667) + LIQUID (x(Sb) 0.9958) + RHOMBOHEDRAL_A7 (x(Sb) 1)
LaSb-12Gao.tdb	902.41	LASB2 (x(Sb) 0.66667) + LIQUID (x(Sb) 0.99584) + RHOMBOHEDRAL_A7 (x(Sb) 1)
LaSb-12Gao.tdb	902.41	LASB2 (x(Sb) 0.66667) + LIQUID (x(Sb) 0.99585) + RHOMBOHEDRAL_A7 (x(Sb) 1)
LaSb-12Gao.tdb	550	FCC_A1 (x(Sb) 0) + DHCP (x(Sb) 0) + LA2SB (x(Sb) 0.33333)
LaSb-13Wan.tdb	1894.39	LIQUID (x(Sb) 0.28859) + LA2SB (x(Sb) 0.33333) + LA3SB2 (x(Sb) 0.4)
LaSb-13Wan.tdb	1819.26	LA3SB2 (x(Sb) 0.4) + LASB_B1 (x(Sb) 0.5) + LIQUID (x(Sb) 0.5321)
LaSb-13Wan.tdb	1380.68	LASB_B1 (x(Sb) 0.5) + LASB2 (x(Sb) 0.66667) + LIQUID (x(Sb) 0.71873)
LaSb-13Wan.tdb	1380.68	LASB_B1 (x(Sb) 0.5) + LASB2 (x(Sb) 0.66667) + LIQUID (x(Sb) 0.71871)
LaSb-13Wan.tdb	1117	FCC_A1 (x(Sb) 0) + LIQUID (x(Sb) 0.04032) + LA2SB (x(Sb) 0.33333)
LaSb-13Wan.tdb	902.45	LASB2 (x(Sb) 0.66667) + LIQUID (x(Sb) 0.99589) + RHOMBOHEDRAL_A7 (x(Sb) 1)
LaSb-13Wan.tdb	902.45	LASB2 (x(Sb) 0.66667) + LIQUID (x(Sb) 0.99594) + RHOMBOHEDRAL_A7 (x(Sb) 1)
LaSb-13Wan.tdb	902.45	LASB2 (x(Sb) 0.66667) + LIQUID (x(Sb) 0.99596) + RHOMBOHEDRAL_A7 (x(Sb) 1)
LaSb-13Wan.tdb	550	FCC_A1 (x(Sb) 0) + DHCP (x(Sb) 0) + LA2SB (x(Sb) 0.33333)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull LaSb-12Gao

Invariant reactions (literature)

Invariant reactions reported in the literature for the La–Sb system (22)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1963	congruent melting: L <-> La3Sb2	L: Sb 0.4; La3Sb2: La 0.6, Sb 0.4	model	[1] Wang 2013	Table 1, p. 2, row 8 report
1963	congruent melting: L <-> La3Sb2	L: Sb 0.4; La3Sb2: La 0.6, Sb 0.4	experimental	[1] Wang 2013 cites Vogel 1954	Table 1, p. 2, row 7 report
1813.15	L + La3Sb2 ↔ LaSb	L: Sb 0.52; La3Sb2: Sb 0.4; LaSb: Sb 0.5	model	[2] Gao 2012	Table 1, p. 2, row 5 report
1813.15	L + La3Sb2 ↔ LaSb	L: Sb 0.53; La3Sb2: Sb 0.4; LaSb: Sb 0.5	experimental	[2] Gao 2012 cites Massalski 1990	Table 1, p. 2, row 6 report
1813	peritectic: L + La3Sb2 <-> LaSb	L: Sb 0.522; La3Sb2: La 0.6, Sb 0.4; LaSb: La 0.5, Sb 0.5	model	[1] Wang 2013	Table 1, p. 2, row 6 report
1813	peritectic: L + La3Sb2 <-> LaSb	L: Sb 0.53; La3Sb2: La 0.6, Sb 0.4; LaSb: La 0.5, Sb 0.5	experimental	[1] Wang 2013 cites Vogel 1954	Table 1, p. 2, row 5 report
1733.15	L + La3Sb2 ↔ La2Sb	L: Sb 0.254; La3Sb2: Sb 0.4; La2Sb: Sb 0.333	model	[2] Gao 2012	Table 1, p. 2, row 3 report
1733.15	L + La3Sb2 ↔ La2Sb	L: Sb 0.324; La3Sb2: Sb 0.4; La2Sb: Sb 0.333	experimental	[2] Gao 2012 cites Massalski 1990	Table 1, p. 2, row 4 report
1733	peritectic: L + La3Sb2 <-> La2Sb	L: Sb 0.324; La3Sb2: La 0.6, Sb 0.4; La2Sb: La 0.666667, Sb 0.333333	experimental	[1] Wang 2013 cites Vogel 1954	Table 1, p. 2, row 3 report
1733	peritectic: L + La3Sb2 <-> La2Sb	L: Sb 0.31; La3Sb2: La 0.6, Sb 0.4; La2Sb: La 0.666667, Sb 0.333333	model	[1] Wang 2013	Table 1, p. 2, row 4 report
1383.15	L + LaSb ↔ LaSb2	L: Sb 0.738; LaSb: Sb 0.5; LaSb2: Sb 0.667	model	[2] Gao 2012	Table 1, p. 2, row 7 report
1383.15	L + LaSb ↔ LaSb2	L: Sb 0.745; LaSb: Sb 0.5; LaSb2: Sb 0.667	experimental	[2] Gao 2012 cites Massalski 1990	Table 1, p. 2, row 8 report
1383	peritectic: L + LaSb <-> LaSb2	L: Sb 0.745; LaSb: La 0.5, Sb 0.5; LaSb2: La 0.333333, Sb 0.666667	experimental	[1] Wang 2013 cites Vogel 1954	Table 1, p. 2, row 9 report
1383	peritectic: L + LaSb <-> LaSb2	L: Sb 0.72; LaSb: La 0.5, Sb 0.5; LaSb2: La 0.333333, Sb 0.666667	model	[1] Wang 2013	Table 1, p. 2, row 10 report
1118.15	L ↔ (β-La) + La2Sb	L: Sb 0.03; (β-La): Sb 0; La2Sb: Sb 0.333	model	[2] Gao 2012	Table 1, p. 2, row 1 report
1118.15	L ↔ (β-La) + La2Sb	L: Sb 0.034; (β-La): Sb 0; La2Sb: Sb 0.333	experimental	[2] Gao 2012 cites Massalski 1990	Table 1, p. 2, row 2 report
1118	eutectic: L <-> Fcc.A1 (La) + La2Sb	L: Sb 0.034; La2Sb: La 0.666667, Sb 0.333333	experimental	[1] Wang 2013 cites Vogel 1954	Table 1, p. 2, row 1 report
1117	eutectic: L <-> Fcc.A1 (La) + La2Sb	L: Sb 0.04; La2Sb: La 0.666667, Sb 0.333333	model	[1] Wang 2013	Table 1, p. 2, row 2 report
903.15	L ↔ LaSb2 + (Sb)	L: Sb 0.996; LaSb2: Sb 0.667; (Sb): Sb 1	model	[2] Gao 2012	Table 1, p. 2, row 9 report
903.15	L ↔ LaSb2 + (Sb)	L: Sb 0.995; LaSb2: Sb 0.667; (Sb): Sb 1	experimental	[2] Gao 2012 cites Massalski 1990	Table 1, p. 2, row 10 report
903	eutectic: L <-> Rhomb(Sb) + LaSb2	L: Sb 0.995; LaSb2: La 0.333333, Sb 0.666667	experimental	[1] Wang 2013 cites Vogel 1954	Table 1, p. 2, row 11 report
902.5	eutectic: L <-> Rhomb(Sb) + LaSb2	L: Sb 0.996; LaSb2: La 0.333333, Sb 0.666667	model	[1] Wang 2013	Table 1, p. 2, row 12 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, La–Sb system (8)
Phase	Value	T (K)	Class	Source	Location
La2Sb	-142.089 kJ/mol (basis unstated)	298.15	experimental	[1] Wang 2013 cites Goryacheva 1971	Table 3, p. 3, row 3 report
La2Sb	-97.9 kJ/mol (basis unstated)	298.15	experimental	[1] Wang 2013 cites Borzone 1979 doi	Table 3, p. 3, row 2 report
La2Sb	-94 kJ/mol (basis unstated)	0	model	[1] Wang 2013 cites Colinet 1984 doi	Table 3, p. 3, row 4 report
La2Sb	-88.09 kJ/mol (basis unstated)	0	DFT	[1] Wang 2013	Table 3, p. 3, row 1 report
LaSb	-148.197 kJ/mol (basis unstated)	298.15	experimental	[1] Wang 2013 cites Goryacheva 1971	Table 3, p. 3, row 7 report
LaSb	-130.5 kJ/mol (basis unstated)	298.15	experimental	[1] Wang 2013 cites Borzone 1979 doi	Table 3, p. 3, row 6 report
LaSb	-123.511 kJ/mol (basis unstated)	0	DFT	[1] Wang 2013	Table 3, p. 3, row 5 report
LaSb	-118 kJ/mol (basis unstated)	0	model	[1] Wang 2013 cites Colinet 1984 doi	Table 3, p. 3, row 8 report

Sources

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

Jinsan Wang, Changrong Li, Cuiping Guo, Zhenmin Du, Xushan Zhao, Jianyun Shen, Thermodynamic assessment of the La–Sb and the Ho–Sb systems using the associate model, Thermochimica Acta 551, 104-109 (2013). doi:10.1016/j.tca.2012.10.026
F. Gao, S.L. Wang, C.P. Wang, X.J. Liu, Thermodynamic assessments of the Sb–La and Sb–Tb systems, Calphad 37, 158-162 (2012). doi:10.1016/j.calphad.2012.01.002

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}
}