Sb–Te system

42 accepted literature values from 1 paper(s) (experimental 19, model 22, unspecified 1); 3 calculated phase diagram(s). 1 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 (14) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	19
model	22
unspecified	1

Accepted values by property group
Property group	Values
invariant reaction	23
phase transition	11
formation	2
heat capacity / entropy / enthalpy	6

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
SbTe-14Guo.tdb	C. Guo, C. Li, Z. Du, J. Electron. Mater., 43, 4082-89(2014). doi:10.1007/s11664-014-3299-7	`9cb90c1c04c3cdc6d4b61a8e76d8af5845ef1c4a4163a50f3626f3d671abb80f`	viewer · TDB · JSON
SbTe-18Pet.tdb	M. Peters, unpublished, 2018.	`9e95ae4d75904602fb32b23b4b8ecc9d2ac6e26f618eef1b38c237c520340015`	viewer · TDB · JSON
SbTe-89Gho.tdb	G. Ghosh, H.L. Lukas, L. Delaey, Z. Metallkd., 80, 731-36 (1989). doi:10.1515/ijmr-1989-801009	`a84307cafa058316a5fc4dd004b633d51220442c542e1b8f9ed9a2bcd9fbce9e`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
SbTe-14Guo.tdb	831.5	ION (x(Te) 0.41226) + SBTE_GAMMA (x(Te) 0.48589) + SB2TE3_C33 (x(Te) 0.6)
SbTe-14Guo.tdb	821.56	RHOMBOHEDRAL_A7 (x(Te) 0.02798) + SB2TE_DELTA (x(Te) 0.16045) + LIQUID (x(Te) 0.24433)
SbTe-14Guo.tdb	820.38	ION (x(Te) 0.35135) + SB2TE_DELTA (x(Te) 0.39485) + SBTE_GAMMA (x(Te) 0.42566)
SbTe-14Guo.tdb	818.05	LIQUID (x(Te) 0.3103) + ION (x(Te) 0.31816) + SB2TE_DELTA (x(Te) 0.33903)
SbTe-14Guo.tdb	812.44	SB2TE3_C33 (x(Te) 0.6) + ION (x(Te) 0.79172) + LIQUID (x(Te) 0.80413)
SbTe-14Guo.tdb	812.44	SB2TE3_C33 (x(Te) 0.6) + ION (x(Te) 0.79191) + LIQUID (x(Te) 0.80435)
SbTe-14Guo.tdb	688.34	SB2TE3_C33 (x(Te) 0.6) + LIQUID (x(Te) 0.92576) + HEXAGONAL_A8 (x(Te) 0.99799)
SbTe-14Guo.tdb	688.34	SB2TE3_C33 (x(Te) 0.6) + LIQUID (x(Te) 0.92619) + HEXAGONAL_A8 (x(Te) 0.998)
SbTe-18Pet.tdb	829.44	LIQUID (x(Te) 0.39062) + SB4TE5 (x(Te) 0.55556) + SB2TE3_C33 (x(Te) 0.59157)
SbTe-18Pet.tdb	829.44	LIQUID (x(Te) 0.39014) + SB4TE5 (x(Te) 0.55556) + SB2TE3_C33 (x(Te) 0.59155)
SbTe-18Pet.tdb	818.25	RHOMBOHEDRAL_A7 (x(Te) 0.01263) + LIQUID (x(Te) 0.25739) + SB7TE3 (x(Te) 0.3)
SbTe-18Pet.tdb	818.25	RHOMBOHEDRAL_A7 (x(Te) 0.01261) + LIQUID (x(Te) 0.25696) + SB7TE3 (x(Te) 0.3)
SbTe-18Pet.tdb	815.62	SB7TE3 (x(Te) 0.3) + LIQUID (x(Te) 0.36175) + SB4TE5 (x(Te) 0.55556)
SbTe-18Pet.tdb	815.62	SB7TE3 (x(Te) 0.3) + LIQUID (x(Te) 0.36169) + SB4TE5 (x(Te) 0.55556)
SbTe-18Pet.tdb	693.58	SB2TE3_C33 (x(Te) 0.60009) + LIQUID (x(Te) 0.90238) + HEXAGONAL_A8 (x(Te) 1)
SbTe-89Gho.tdb	829.32	ION (x(Te) 0.36904) + SBTE_GAMMA (x(Te) 0.48965) + SB2TE3_C33 (x(Te) 0.59615)
SbTe-89Gho.tdb	820.73	RHOMBOHEDRAL_A7 (x(Te) 0.00791) + SB2TE_DELTA (x(Te) 0.15583) + ION (x(Te) 0.22738)
SbTe-89Gho.tdb	818.46	ION (x(Te) 0.3098) + SB2TE_DELTA (x(Te) 0.36753) + SBTE_GAMMA (x(Te) 0.4105)
SbTe-89Gho.tdb	694.67	SB2TE3_C33 (x(Te) 0.6) + ION (x(Te) 0.92665) + HEXAGONAL_A8 (x(Te) 1)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull SbTe-14Guo · CALPHAD hull SbTe-89Gho

Invariant reactions (literature)

Invariant reactions reported in the literature for the Sb–Te system (23)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
833	liq. + Sb2Te3 -> gamma	liq.: Te 0.4064; Sb2Te3: Te 0.6; gamma: Te 0.4859	model	[1] Guo 2014	Table II, p. 4, row 20 report
832	liq. + Sb2Te3 -> gamma	liq.: Te 0.4123; Sb2Te3: Te 0.6; gamma: Te 0.4859	model	[1] Guo 2014	Table II, p. 4, row 19 report
831	liq. + Sb2Te3 -> gamma	liq.: Te 0.41; Sb2Te3: Te 0.6; gamma: Te 0.55	experimental	[1] Guo 2014 cites NKh 1959	Table II, p. 4, row 16 report
831	liq. + Sb2Te3 -> gamma	liq.: Te 0.381; Sb2Te3: Te 0.59; gamma: Te 0.539	experimental	[1] Guo 2014 cites Bordas 1986 doi	Table II, p. 4, row 17 report
830	liq. + Sb2Te3 -> gamma	liq.: Te 0.367; Sb2Te3: Te 0.596; gamma: Te 0.49	model	[1] Guo 2014 cites Ghosh 1989 doi	Table II, p. 4, row 18 report
823	liq. + rhom(Sb) -> delta	liq.: Te 0.2556; rhom(Sb): Te 0.0281; delta: Te 0.1605	model	[1] Guo 2014	Table II, p. 4, row 4 report
823	liq. + rhom(Sb) -> delta	liq.: Te 0.247; rhom(Sb): Te 0.025; delta: Te 0.169	experimental	[1] Guo 2014 cites Bordas 1986 doi	Table II, p. 4, row 2 report
823	liq. + rhom(Sb) -> delta	liq.: Te 0.25; rhom(Sb): Te 0.01; delta: Te 0.18	experimental	[1] Guo 2014 cites NKh 1959	Table II, p. 4, row 1 report
822	liq. + rhom(Sb) -> delta	liq.: Te 0.2443; rhom(Sb): Te 0.0279; delta: Te 0.1605	model	[1] Guo 2014	Table II, p. 4, row 5 report
821	liq. + gamma -> delta	liq.: Te 0.35; gamma: Te 0.406; delta: Te 0.37	experimental	[1] Guo 2014 cites Bordas 1986 doi	Table II, p. 4, row 12 report
821	liq. + rhom(Sb) -> delta	liq.: Te 0.231; rhom(Sb): Te 0.013; delta: Te 0.164	model	[1] Guo 2014 cites Ghosh 1989 doi	Table II, p. 4, row 3 report
821	liq. + gamma -> delta	liq.: Te 0.3447; gamma: Te 0.4257; delta: Te 0.395	model	[1] Guo 2014	Table II, p. 4, row 15 report
821	liq. + gamma -> delta	liq.: Te 0.37; gamma: Te 0.42; delta: Te 0.39	experimental	[1] Guo 2014 cites NKh 1959	Table II, p. 4, row 11 report
820	liq. + gamma -> delta	liq.: Te 0.3514; gamma: Te 0.4257; delta: Te 0.3949	model	[1] Guo 2014	Table II, p. 4, row 14 report
819	liq. + gamma -> delta	liq.: Te 0.308; gamma: Te 0.411; delta: Te 0.368	model	[1] Guo 2014 cites Ghosh 1989 doi	Table II, p. 4, row 13 report
725	eutectic: liq. -> Sb2Te3 + hex(Te)	liq.: Te 0.9; Sb2Te3: Te 0.6; hex(Te): Te 1	experimental	[1] Guo 2014 cites Pelabon 1906	Table II, p. 4, row 31 report
719	eutectic: liq. -> Sb2Te3 + hex(Te)	liq.: Te 0.9; Sb2Te3: Te 0.6; hex(Te): Te 1	experimental	[1] Guo 2014 cites Fay 1902	Table II, p. 4, row 30 report
715	eutectic: liq. -> Sb2Te3 + hex(Te)	liq.: Te 0.9; Sb2Te3: Te 0.6; hex(Te): Te 1	experimental	[1] Guo 2014 cites Kimata 1915	Table II, p. 4, row 29 report
697	eutectic: liq. -> Sb2Te3 + hex(Te)	liq.: Te 0.89; Sb2Te3: Te 0.6; hex(Te): Te 1	experimental	[1] Guo 2014 cites Brown 1962 doi	Table II, p. 4, row 28 report
695	eutectic: liq. -> Sb2Te3 + hex(Te)	liq.: Te 0.9208; Sb2Te3: Te 0.6; hex(Te): Te 1	model	[1] Guo 2014	Table II, p. 4, row 33 report
695	eutectic: liq. -> Sb2Te3 + hex(Te)	liq.: Te 0.926; Sb2Te3: Te 0.6; hex(Te): Te 1	model	[1] Guo 2014 cites Ghosh 1989 doi	Table II, p. 4, row 32 report
693	eutectic: liq. -> Sb2Te3 + hex(Te)	liq.: Te 0.91; Sb2Te3: Te 0.6; hex(Te): Te 1	experimental	[1] Guo 2014 cites NKh 1959	Table II, p. 4, row 27 report
688	eutectic: liq. -> Sb2Te3 + hex(Te)	liq.: Te 0.9262; Sb2Te3: Te 0.6; hex(Te): Te 1	model	[1] Guo 2014	Table II, p. 4, row 34 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, Sb–Te system (2)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location	Quote
Sb2Te3	Sb2Te3	-14.9 kJ/mol-atom	298.15	experimental	-36.973 (mp-aaaaabuf)	-12.393 (oqmd-643311)	[1] Guo 2014 cites Ya 1961	Table III, p. 7, row 4 report
Sb2Te3	Sb2Te3	-12.33 kJ/mol-atom	298.15	experimental	-36.973 (mp-aaaaabuf)	-12.393 (oqmd-643311)	[1] Guo 2014 cites Vecher 1974	Table III, p. 7, row 5 report

Other properties

Phase transition (11)

Phase transition, Sb–Te system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	811 K	811	liq. -> delta liq.: Te 0.32; delta: Te 0.32	experimental	[1] Guo 2014 cites NKh 1959	Table II, p. 4, row 6 report
Phase transition	817 K	817	liq. -> delta liq.: Te 0.31; delta: Te 0.31	experimental	[1] Guo 2014 cites Bordas 1986 doi	Table II, p. 4, row 7 report
Phase transition	818 K	818	liq. -> delta liq.: Te 0.2927; delta: Te 0.2927	model	[1] Guo 2014	Table II, p. 4, row 10 report
Phase transition	818 K	818	liq. -> delta liq.: Te 0.3052; delta: Te 0.3052	model	[1] Guo 2014	Table II, p. 4, row 9 report
Phase transition	818 K	818	liq. -> delta liq.: Te 0.277; delta: Te 0.277	model	[1] Guo 2014 cites Ghosh 1989 doi	Table II, p. 4, row 8 report
Phase transition	889 K	889	liq. -> Sb2Te3 liq.: Te 0.6; Sb2Te3: Te 0.6	unspecified	[1] Guo 2014 cites Poretskaya 1963	Table II, p. 4, row 21 report
Phase transition	890 K	890	liq. -> Sb2Te3 liq.: Te 0.6; Sb2Te3: Te 0.6	model	[1] Guo 2014	Table II, p. 4, row 25 report
Phase transition	891 K	891	liq. -> Sb2Te3 liq.: Te 0.6; Sb2Te3: Te 0.6	model	[1] Guo 2014 cites Ghosh 1989 doi	Table II, p. 4, row 24 report
Phase transition	892 K	892	liq. -> Sb2Te3 liq.: Te 0.6; Sb2Te3: Te 0.6	experimental	[1] Guo 2014 cites Howlett 1964	Table II, p. 4, row 22 report
Phase transition	894 K	894	liq. -> Sb2Te3 liq.: Te 0.6; Sb2Te3: Te 0.6	experimental	[1] Guo 2014 cites Glazov 1971	Table II, p. 4, row 23 report
Phase transition	894 K	894	liq. -> Sb2Te3 liq.: Te 0.6; Sb2Te3: Te 0.6	model	[1] Guo 2014	Table II, p. 4, row 26 report

Heat capacity / entropy / enthalpy (6)

Heat capacity / entropy / enthalpy, Sb–Te system
Property	Value	Phases / composition	Class	Source	Location
Entropy printed: Entropy of fusion	22.5 J/mol-atom/K	Sb2Te3 alloy: Te 0.6	experimental	[1] Guo 2014 cites Howlett 1964	Table III, p. 7, row 12 report
Entropy printed: Entropy of fusion	22.5 J/mol-atom/K	Sb2Te3 alloy: Te 0.6	experimental	[1] Guo 2014 cites Howlett 1964	Table III, p. 7, row 15 report
Entropy printed: Entropy of fusion	23.37 J/mol-atom/K	Sb2Te3 alloy: Te 0.6	model	[1] Guo 2014	Table III, p. 7, row 10 report
Entropy printed: Entropy of fusion	23.48 J/mol-atom/K	Sb2Te3 alloy: Te 0.6	model	[1] Guo 2014	Table III, p. 7, row 14 report
Entropy printed: Entropy of fusion	23.37 J/mol-atom/K	Sb2Te3 alloy: Te 0.6	model	[1] Guo 2014	Table III, p. 7, row 13 report
Entropy printed: Entropy of fusion	23.48 J/mol-atom/K	Sb2Te3 alloy: Te 0.6	model	[1] Guo 2014	Table III, p. 7, row 11 report

Sources

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

Cuiping Guo, Changrong Li, Zhenmin Du, Thermodynamic Re-modeling of the Sb-Te System Using Associate and Ionic Models, Journal of Elec Materi 43, 4082-4089 (2014). doi:10.1007/s11664-014-3299-7

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}
}