Ge–V system

54 accepted literature values from 2 paper(s) (experimental 24, model 27, unspecified 3); 2 calculated phase diagram(s). 5 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 (9) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	24
model	27
unspecified	3

Accepted values by property group
Property group	Values
invariant reaction	30
formation	24

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
GeV-08Wan.tdb	C.P. Wang, A.Q. Zheng, X.J. Liu, Intermetallics, 16, 544-49(2008). doi:10.1016/j.intermet.2008.01.002	`e22a7c5ff3693ca326887d163e4b54b071911898548782e51b0436813c5d6ec8`	viewer · TDB · JSON
GeV-11Yua.tdb	X. Yuan, W. Sun, Y. Chung, H. Xu, S. Liu, Y. Du, P. Nash, D. Zeng, Thermochim. Acta, 513, 100-105(2011). doi:10.1016/j.tca.2010.11.018	`b27275b455d680ffa71d2d7243a85e8100e803585aed9464270046f24075b47a`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
GeV-08Wan.tdb	2164	GE3V5_D8M (x(V) 0.625) + LIQUID (x(V) 0.70268) + GEV3_A15 (x(V) 0.75)
GeV-08Wan.tdb	2164	GE3V5_D8M (x(V) 0.625) + LIQUID (x(V) 0.70268) + GEV3_A15 (x(V) 0.75)
GeV-08Wan.tdb	2164	GE3V5_D8M (x(V) 0.625) + LIQUID (x(V) 0.70281) + GEV3_A15 (x(V) 0.75)
GeV-08Wan.tdb	2036.08	GEV3_A15 (x(V) 0.75) + LIQUID (x(V) 0.86805) + BCC_A2 (x(V) 0.95323)
GeV-08Wan.tdb	2036.08	GEV3_A15 (x(V) 0.75) + LIQUID (x(V) 0.86819) + BCC_A2 (x(V) 0.95328)
GeV-08Wan.tdb	1873.72	LIQUID (x(V) 0.43086) + GE8V11 (x(V) 0.57895) + GE3V5_D8M (x(V) 0.625)
GeV-08Wan.tdb	1873.72	LIQUID (x(V) 0.43091) + GE8V11 (x(V) 0.57895) + GE3V5_D8M (x(V) 0.625)
GeV-08Wan.tdb	1231.45	LIQUID (x(V) 0.03841) + GE31V17 (x(V) 0.35417) + GE8V11 (x(V) 0.57895)
GeV-08Wan.tdb	1231.45	LIQUID (x(V) 0.03846) + GE31V17 (x(V) 0.35417) + GE8V11 (x(V) 0.57895)
GeV-08Wan.tdb	1231.45	LIQUID (x(V) 0.03839) + GE31V17 (x(V) 0.35417) + GE8V11 (x(V) 0.57895)
GeV-08Wan.tdb	1200.82	DIAMOND_A4 (x(V) 0) + LIQUID (x(V) 0.02823) + GE31V17 (x(V) 0.35417)
GeV-08Wan.tdb	1200.82	DIAMOND_A4 (x(V) 0) + LIQUID (x(V) 0.02817) + GE31V17 (x(V) 0.35417)
GeV-08Wan.tdb	1200.82	DIAMOND_A4 (x(V) 0) + LIQUID (x(V) 0.02813) + GE31V17 (x(V) 0.35417)
GeV-11Yua.tdb	2167.55	GE3V5_D8M (x(V) 0.625) + LIQUID (x(V) 0.69425) + GEV3_A15 (x(V) 0.75)
GeV-11Yua.tdb	2167.55	GE3V5_D8M (x(V) 0.625) + LIQUID (x(V) 0.69415) + GEV3_A15 (x(V) 0.75)
GeV-11Yua.tdb	2167.55	GE3V5_D8M (x(V) 0.625) + LIQUID (x(V) 0.69447) + GEV3_A15 (x(V) 0.75)
GeV-11Yua.tdb	2041.65	GEV3_A15 (x(V) 0.75) + LIQUID (x(V) 0.89776) + BCC_A2 (x(V) 0.95697)
GeV-11Yua.tdb	2041.65	GEV3_A15 (x(V) 0.75) + LIQUID (x(V) 0.89782) + BCC_A2 (x(V) 0.957)
GeV-11Yua.tdb	1894.8	LIQUID (x(V) 0.41076) + GE8V11 (x(V) 0.57895) + GE3V5_D8M (x(V) 0.625)
GeV-11Yua.tdb	1894.8	LIQUID (x(V) 0.41082) + GE8V11 (x(V) 0.57895) + GE3V5_D8M (x(V) 0.625)
GeV-11Yua.tdb	1233.33	LIQUID (x(V) 0.0381) + GE31V17 (x(V) 0.35417) + GE8V11 (x(V) 0.57895)
GeV-11Yua.tdb	1233.33	LIQUID (x(V) 0.0382) + GE31V17 (x(V) 0.35417) + GE8V11 (x(V) 0.57895)
GeV-11Yua.tdb	1233.33	LIQUID (x(V) 0.03807) + GE31V17 (x(V) 0.35417) + GE8V11 (x(V) 0.57895)
GeV-11Yua.tdb	1203.82	DIAMOND_A4 (x(V) 0) + LIQUID (x(V) 0.02506) + GE31V17 (x(V) 0.35417)
GeV-11Yua.tdb	1203.82	DIAMOND_A4 (x(V) 0) + LIQUID (x(V) 0.02491) + GE31V17 (x(V) 0.35417)
GeV-11Yua.tdb	1203.82	DIAMOND_A4 (x(V) 0) + LIQUID (x(V) 0.02485) + GE31V17 (x(V) 0.35417)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull GeV-08Wan

Invariant reactions (literature)

Invariant reactions reported in the literature for the Ge–V system (30)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
2235.15	congruent melting: L -> V5Ge3	L: Ge 0.375; V5Ge3: Ge 0.375	model	[1] Wang 2008	Table 4, p. 4, row 10 report
2204.15	congruent melting: L -> V5Ge3	L: Ge 0.375; V5Ge3: Ge 0.375	model	[2] Yuan 2011	Table 6, p. 5, row 7 report
2203.15	congruent melting: L -> V5Ge3	L: Ge 0.375; V5Ge3: Ge 0.375	experimental	[2] Yuan 2011 cites Savitskii 1974	Table 6, p. 5, row 8 report
2203.15	congruent melting: L -> V5Ge3	L: Ge 0.375; V5Ge3: Ge 0.375	experimental	[1] Wang 2008 cites Smith 1989	Table 4, p. 4, row 9 report
2193.15	congruent melting: L -> V3Ge	L: Ge 0.25; V3Ge: Ge 0.25	model	[1] Wang 2008	Table 4, p. 4, row 6 report
2193.15	congruent melting: L -> V3Ge	L: Ge 0.25; V3Ge: Ge 0.25	model	[2] Yuan 2011	Table 6, p. 5, row 3 report
2193.15	congruent melting: L -> V3Ge	L: Ge 0.25; V3Ge: Ge 0.25	experimental	[2] Yuan 2011 cites Waterstrat 1980	Table 6, p. 5, row 4 report
2193.15	congruent melting: L -> V3Ge	L: Ge 0.25; V3Ge: Ge 0.25	experimental	[1] Wang 2008 cites Smith 1989	Table 4, p. 4, row 5 report
2183.15	congruent melting: L -> (V)	L: Ge 0; (V): Ge 0	model	[1] Wang 2008	Table 4, p. 4, row 2 report
2183.15	congruent melting: L -> (V)	L: Ge 0; (V): Ge 0	experimental	[1] Wang 2008 cites Smith 1989	Table 4, p. 4, row 1 report
2167.15	eutectic: L -> V3Ge + V5Ge3	L: Ge 0.306; V3Ge: Ge 0.25; V5Ge3: Ge 0.375	model	[2] Yuan 2011	Table 6, p. 5, row 5 report
2164.15	eutectic: L -> V5Ge3 + V3Ge	L: Ge 0.301; V5Ge3: Ge 0.375; V3Ge: Ge 0.25	model	[1] Wang 2008	Table 4, p. 4, row 8 report
2149.15	eutectic: L -> V3Ge + V5Ge3	L: Ge 0.307; V3Ge: Ge 0.25; V5Ge3: Ge 0.375	experimental	[2] Yuan 2011 cites Svechnikov 1974	Table 6, p. 5, row 6 report
2073.15	eutectic: L -> V5Ge3 + V3Ge	V5Ge3: Ge 0.375; V3Ge: Ge 0.25	experimental	[1] Wang 2008 cites Smith 1989	Table 4, p. 4, row 7 report
2042.15	eutectic: L -> (V) + V3Ge	L: Ge 0.102; (V): Ge 0.043; V3Ge: Ge 0.25	model	[2] Yuan 2011	Table 6, p. 5, row 1 report
2036.15	eutectic: L -> V3Ge + (V)	L: Ge 0.133; V3Ge: Ge 0.25; (V): Ge 0.047	model	[1] Wang 2008	Table 4, p. 4, row 4 report
2033.15	eutectic: L -> V3Ge + (V)	L: Ge 0.16; V3Ge: Ge 0.25; (V): Ge 0.045	experimental	[1] Wang 2008 cites Smith 1989	Table 4, p. 4, row 3 report
2032.15	eutectic: L -> (V) + V3Ge	L: Ge 0.14; (V): Ge 0.045; V3Ge: Ge 0.25	experimental	[2] Yuan 2011 cites Svechnikov 1974	Table 6, p. 5, row 2 report
1895.15	L + V5Ge3 -> V11Ge8	L: Ge 0.589; V5Ge3: Ge 0.375; V11Ge8: Ge 0.421	model	[2] Yuan 2011	Table 6, p. 5, row 9 report
1874.15	peritectic: L + V5Ge3 -> V11Ge8	L: Ge 0.541; V5Ge3: Ge 0.375; V11Ge8: Ge 0.421	model	[1] Wang 2008	Table 4, p. 4, row 12 report
1873.15	peritectic: L + V5Ge3 -> V11Ge8	V5Ge3: Ge 0.375; V11Ge8: Ge 0.421	experimental	[1] Wang 2008 cites Smith 1989	Table 4, p. 4, row 11 report
1848.15	L + V5Ge3 -> V11Ge8	L: Ge 0.54; V5Ge3: Ge 0.375; V11Ge8: Ge 0.421	experimental	[2] Yuan 2011 cites Savitskii 1974	Table 6, p. 5, row 10 report
1234.25	L + V11Ge8 -> V17Ge31	L: Ge 0.962; V11Ge8: Ge 0.421; V17Ge31: Ge 0.646	model	[2] Yuan 2011	Table 6, p. 5, row 11 report
1233.15	peritectic: L + V11Ge8 -> V17Ge31	L: Ge 0.95; V11Ge8: Ge 0.421; V17Ge31: Ge 0.646	experimental	[1] Wang 2008 cites Smith 1989	Table 4, p. 4, row 13 report
1233.15	L + V11Ge8 -> V17Ge31	L: Ge 0.958; V11Ge8: Ge 0.421; V17Ge31: Ge 0.646	experimental	[2] Yuan 2011	Table 6, p. 5, row 12 report
1232.15	peritectic: L + V11Ge8 -> V17Ge31	L: Ge 0.961; V11Ge8: Ge 0.421; V17Ge31: Ge 0.646	model	[1] Wang 2008	Table 4, p. 4, row 14 report
1203.85	eutectic: L -> V17Ge31 + Ge	L: Ge 0.971; V17Ge31: Ge 0.646; Ge: Ge 1	experimental	[2] Yuan 2011	Table 6, p. 5, row 14 report
1203.85	eutectic: L -> V17Ge31 + Ge	L: Ge 0.975; V17Ge31: Ge 0.646; Ge: Ge 1	model	[2] Yuan 2011	Table 6, p. 5, row 13 report
1203.15	eutectic: L -> (Ge) + V17Ge31	L: Ge 1; (Ge): Ge 0.98; V17Ge31: Ge 0.646	experimental	[1] Wang 2008 cites Smith 1989	Table 4, p. 4, row 15 report
1201.15	eutectic: L -> (Ge) + V17Ge31	L: Ge 1; (Ge): Ge 0.972; V17Ge31: Ge 0.646	model	[1] Wang 2008	Table 4, p. 4, row 16 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, Ge–V system (24)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location
V11Ge8	Ge8V11	-51.6 kJ/mol-atom	1301.15	experimental	-33.7 (mp-aaacqgbd)		[2] Yuan 2011 cites Conclusions	Table 3, p. 2, row 5 report
V11Ge8	Ge8V11	-46.6 kJ/mol-atom	1073.15	experimental	-33.7 (mp-aaacqgbd)		[2] Yuan 2011 cites Eremenko 1976	Table 3, p. 2, row 9 report
V11Ge8	Ge8V11	-46.5 kJ/mol-atom	298.15	model	-33.7 (mp-aaacqgbd)		[2] Yuan 2011 cites Wang 2008 doi	Table 3, p. 2, row 17 report
V11Ge8	Ge8V11	-46.1 kJ/mol-atom	298.15	model	-33.7 (mp-aaacqgbd)		[2] Yuan 2011	Table 3, p. 2, row 21 report
V11Ge8	Ge8V11	-45.5 kJ/mol-atom		unspecified	-33.7 (mp-aaacqgbd)		[2] Yuan 2011	Table 3, p. 2, row 23 report
V11Ge8	Ge8V11	-45.5 kJ/mol-atom	298.15	experimental	-33.7 (mp-aaacqgbd)		[2] Yuan 2011 cites Zarembo 2000 doi	Table 3, p. 2, row 3 report
V11Ge8	Ge8V11	-39.9 kJ/mol-atom	298.15	model	-33.7 (mp-aaacqgbd)		[2] Yuan 2011 cites Smith 1981 doi	Table 3, p. 2, row 13 report
V17Ge31	Ge31V17	-35 kJ/mol-atom	298.15	model	-19.309 (mp-aaabmsmp)		[2] Yuan 2011	Table 3, p. 2, row 22 report
V17Ge31	Ge31V17	-35 kJ/mol-atom		unspecified	-19.309 (mp-aaabmsmp)		[2] Yuan 2011	Table 3, p. 2, row 23 report
V17Ge31	Ge31V17	-35 kJ/mol-atom	298.15	experimental	-19.309 (mp-aaabmsmp)		[2] Yuan 2011 cites Zarembo 2000 doi	Table 3, p. 2, row 4 report
V17Ge31	Ge31V17	-32.4 kJ/mol-atom	298.15	model	-19.309 (mp-aaabmsmp)		[2] Yuan 2011 cites Wang 2008 doi	Table 3, p. 2, row 18 report
V17Ge31	Ge31V17	-26.8 kJ/mol-atom	1073.15	experimental	-19.309 (mp-aaabmsmp)		[2] Yuan 2011 cites Eremenko 1976	Table 3, p. 2, row 10 report
V17Ge31	Ge31V17	-26.2 kJ/mol-atom	298.15	model	-19.309 (mp-aaabmsmp)		[2] Yuan 2011 cites Smith 1981 doi	Table 3, p. 2, row 14 report
V3Ge	GeV3	-44.8 kJ/mol-atom	1073.15	experimental	-32.325 (mp-aaaaabuz)	-32.616 (oqmd-3829)	[2] Yuan 2011 cites Eremenko 1976	Table 3, p. 2, row 7 report
V3Ge	GeV3	-36 kJ/mol-atom	298.15	model	-32.325 (mp-aaaaabuz)	-32.616 (oqmd-3829)	[2] Yuan 2011	Table 3, p. 2, row 19 report
V3Ge	GeV3	-35.3 kJ/mol-atom	298.15	model	-32.325 (mp-aaaaabuz)	-32.616 (oqmd-3829)	[2] Yuan 2011 cites Smith 1981 doi	Table 3, p. 2, row 11 report
V3Ge	GeV3	-35.1 kJ/mol-atom	298.15	model	-32.325 (mp-aaaaabuz)	-32.616 (oqmd-3829)	[2] Yuan 2011 cites Wang 2008 doi	Table 3, p. 2, row 15 report
V5Ge3	Ge3V5	-47.7 kJ/mol-atom	1073.15	experimental	-35.723 (mp-aaackxaz)	-28.796 (oqmd-8433)	[2] Yuan 2011 cites Eremenko 1976	Table 3, p. 2, row 8 report
V5Ge3	Ge3V5	-45.9 kJ/mol-atom	298.15	experimental	-35.723 (mp-aaackxaz)	-28.796 (oqmd-8433)	[2] Yuan 2011 cites Zarembo 2000 doi	Table 3, p. 2, row 2 report
V5Ge3	Ge3V5	-45.9 kJ/mol-atom		unspecified	-35.723 (mp-aaackxaz)	-28.796 (oqmd-8433)	[2] Yuan 2011	Table 3, p. 2, row 23 report
V5Ge3	Ge3V5	-45.1 kJ/mol-atom	298.15	model	-35.723 (mp-aaackxaz)	-28.796 (oqmd-8433)	[2] Yuan 2011 cites Wang 2008 doi	Table 3, p. 2, row 16 report
V5Ge3	Ge3V5	-44.3 kJ/mol-atom	298.15	experimental	-35.723 (mp-aaackxaz)	-28.796 (oqmd-8433)	[2] Yuan 2011 cites Kleppa 1990	Table 3, p. 2, row 6 report
V5Ge3	Ge3V5	-43.8 kJ/mol-atom	298.15	model	-35.723 (mp-aaackxaz)	-28.796 (oqmd-8433)	[2] Yuan 2011	Table 3, p. 2, row 20 report
V5Ge3	Ge3V5	-41.5 kJ/mol-atom	298.15	model	-35.723 (mp-aaackxaz)	-28.796 (oqmd-8433)	[2] Yuan 2011 cites Smith 1981 doi	Table 3, p. 2, row 12 report

Sources

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

C.P. Wang, A.Q. Zheng, X.J. Liu, Thermodynamic assessments of the V–Ge and V–Pt systems, Intermetallics 16, 544-549 (2008). doi:10.1016/j.intermet.2008.01.002
Xiaoming Yuan, Weihua Sun, Yoonsung Chung, Honghui Xu, Shuhong Liu, Yong Du et al., Heat contents of the intermetallics V3Ge and V5Ge3 and thermodynamic modeling of the Ge–V system, Thermochimica Acta 513, 100-105 (2011). doi:10.1016/j.tca.2010.11.018

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}
}