Si–V system

129 accepted literature values from 3 paper(s) (experimental 43, model 45, DFT 21, unspecified 20); 4 calculated phase diagram(s). 4 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	43
model	45
DFT	21
unspecified	20

Accepted values by property group
Property group	Values
invariant reaction	12
phase transition	7
phase equilibrium	2
formation	66
crystal structure	42

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
SiV-08Zha.tdb	C. Zhang, Y. Du, W. Xiong, H. Xu, P. Nash, Y. Ouyang, R. Hu, Calphad, 32, 320-25(2008). doi:10.1016/j.calphad.2007.12.005	`d01d1621f6968f15e8ca1175cee9277ffbac8337f3e6073954f8c4df9ac13dde`	viewer · TDB · JSON
SiV-13Bro.tdb	P. Broz, A.U. Khan, H. Niu, X.-Q. Chen, D. Li, J. Vrestal, J. Bursik, P. Rogl, J. Solid State Chem., 199, 171-80(2013). doi:10.1016/j.jssc.2012.12.003	`cebc0d060764ec48b00e47cc9acbca2cfee88347e3418d0573b422776d4d710c`	viewer · TDB · JSON
SiV-18Luo.tdb	Q. Luo, K. Li, Q. Li, J. Mater. Sci. Technol., 34, 1592-1601(2018). doi:10.1016/j.jmst.2018.01.004	`0d98c164803523054de1cfded3e7f11063a581698511cbd28859742e852128d1`	viewer · TDB · JSON
SiV-98Ran-LB.tdb	M.H. Rand, N. Saunders, COST 507, Final report round 2, 1998.	`4c72cc6ebad4ef74850283ffbaadc85af4efe1b64235c1e5bef1928ea6ccfd5b`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
SiV-08Zha.tdb	2187.11	SI3V5_D8M (x(V) 0.625) + LIQUID (x(V) 0.7219) + SIV3_A15 (x(V) 0.75104)
SiV-08Zha.tdb	2187.11	SI3V5_D8M (x(V) 0.625) + LIQUID (x(V) 0.72178) + SIV3_A15 (x(V) 0.75101)
SiV-08Zha.tdb	2110.08	SIV3_A15 (x(V) 0.80069) + LIQUID (x(V) 0.89199) + BCC_A2 (x(V) 0.95201)
SiV-08Zha.tdb	1940.03	LIQUID (x(V) 0.43837) + SI5V6 (x(V) 0.54545) + SI3V5_D8M (x(V) 0.625)
SiV-08Zha.tdb	1940.03	LIQUID (x(V) 0.43852) + SI5V6 (x(V) 0.54545) + SI3V5_D8M (x(V) 0.625)
SiV-08Zha.tdb	1903.83	SI2V_C40 (x(V) 0.33333) + LIQUID (x(V) 0.42105) + SI5V6 (x(V) 0.54545)
SiV-08Zha.tdb	1903.83	SI2V_C40 (x(V) 0.33333) + LIQUID (x(V) 0.42075) + SI5V6 (x(V) 0.54545)
SiV-08Zha.tdb	1903.82	SI2V_C40 (x(V) 0.33333) + LIQUID (x(V) 0.42088) + SI5V6 (x(V) 0.54545)
SiV-08Zha.tdb	1667.84	DIAMOND_A4 (x(V) 0) + LIQUID (x(V) 0.05361) + SI2V_C40 (x(V) 0.33333)
SiV-08Zha.tdb	1667.83	DIAMOND_A4 (x(V) 0) + LIQUID (x(V) 0.05314) + SI2V_C40 (x(V) 0.33333)
SiV-08Zha.tdb	731.84	SI2V_C40 (x(V) 0.33333) + SI5V6 (x(V) 0.54545) + SI3V5_D8M (x(V) 0.625)
SiV-13Bro.tdb	2187.11	SI3V5_D8M (x(V) 0.625) + LIQUID (x(V) 0.7219) + SIV3_A15 (x(V) 0.75104)
SiV-13Bro.tdb	2187.11	SI3V5_D8M (x(V) 0.625) + LIQUID (x(V) 0.72178) + SIV3_A15 (x(V) 0.75101)
SiV-13Bro.tdb	2110.08	SIV3_A15 (x(V) 0.80069) + LIQUID (x(V) 0.89199) + BCC_A2 (x(V) 0.95201)
SiV-13Bro.tdb	1956.09	LIQUID (x(V) 0.44296) + SI5V6 (x(V) 0.54545) + SI3V5_D8M (x(V) 0.625)
SiV-13Bro.tdb	1956.09	LIQUID (x(V) 0.44306) + SI5V6 (x(V) 0.54545) + SI3V5_D8M (x(V) 0.625)
SiV-13Bro.tdb	1906.4	SI2V_C40 (x(V) 0.33333) + LIQUID (x(V) 0.41905) + SI5V6 (x(V) 0.54545)
SiV-13Bro.tdb	1906.4	SI2V_C40 (x(V) 0.33333) + LIQUID (x(V) 0.41882) + SI5V6 (x(V) 0.54545)
SiV-13Bro.tdb	1906.4	SI2V_C40 (x(V) 0.33333) + LIQUID (x(V) 0.41874) + SI5V6 (x(V) 0.54545)
SiV-13Bro.tdb	1667.84	DIAMOND_A4 (x(V) 0) + LIQUID (x(V) 0.05361) + SI2V_C40 (x(V) 0.33333)
SiV-13Bro.tdb	1667.83	DIAMOND_A4 (x(V) 0) + LIQUID (x(V) 0.05314) + SI2V_C40 (x(V) 0.33333)
SiV-13Bro.tdb	730.23	SI2V_C40 (x(V) 0.33333) + SI5V6 (x(V) 0.54545) + SI3V5_D8M (x(V) 0.625)
SiV-18Luo.tdb	2187.32	SI3V5_D8M (x(V) 0.625) + LIQUID (x(V) 0.73395) + SIV3_A15 (x(V) 0.75495)
SiV-18Luo.tdb	2187.32	SI3V5_D8M (x(V) 0.625) + LIQUID (x(V) 0.73366) + SIV3_A15 (x(V) 0.75488)
SiV-18Luo.tdb	2106.38	SIV3_A15 (x(V) 0.80058) + LIQUID (x(V) 0.8897) + BCC_A2 (x(V) 0.95271)
SiV-18Luo.tdb	1946.66	LIQUID (x(V) 0.43794) + SI5V6 (x(V) 0.54545) + SI3V5_D8M (x(V) 0.625)
SiV-18Luo.tdb	1946.66	LIQUID (x(V) 0.43805) + SI5V6 (x(V) 0.54545) + SI3V5_D8M (x(V) 0.625)
SiV-18Luo.tdb	1898.61	SI2V_C40 (x(V) 0.33333) + LIQUID (x(V) 0.41638) + SI5V6 (x(V) 0.54545)
SiV-18Luo.tdb	1898.61	SI2V_C40 (x(V) 0.33333) + LIQUID (x(V) 0.41632) + SI5V6 (x(V) 0.54545)
SiV-18Luo.tdb	1898.61	SI2V_C40 (x(V) 0.33333) + LIQUID (x(V) 0.41623) + SI5V6 (x(V) 0.54545)
SiV-18Luo.tdb	1670.24	DIAMOND_A4 (x(V) 0) + LIQUID (x(V) 0.04944) + SI2V_C40 (x(V) 0.33333)
SiV-18Luo.tdb	1670.24	DIAMOND_A4 (x(V) 0) + LIQUID (x(V) 0.04942) + SI2V_C40 (x(V) 0.33333)
SiV-18Luo.tdb	740.22	SI2V_C40 (x(V) 0.33333) + SI5V6 (x(V) 0.54545) + SI3V5_D8M (x(V) 0.625)
SiV-98Ran-LB.tdb	2190.76	SI3V5_D8M (x(V) 0.625) + LIQUID (x(V) 0.72739) + SIV3_A15 (x(V) 0.74769)
SiV-98Ran-LB.tdb	2190.76	SI3V5_D8M (x(V) 0.625) + LIQUID (x(V) 0.72709) + SIV3_A15 (x(V) 0.74761)
SiV-98Ran-LB.tdb	2081.08	SIV3_A15 (x(V) 0.7991) + LIQUID (x(V) 0.87945) + BCC_A2 (x(V) 0.901)
SiV-98Ran-LB.tdb	1943.06	LIQUID (x(V) 0.41256) + SI5V6 (x(V) 0.54545) + SI3V5_D8M (x(V) 0.625)
SiV-98Ran-LB.tdb	1943.06	LIQUID (x(V) 0.41266) + SI5V6 (x(V) 0.54545) + SI3V5_D8M (x(V) 0.625)
SiV-98Ran-LB.tdb	1923.95	SI2V_C40 (x(V) 0.33333) + LIQUID (x(V) 0.40264) + SI5V6 (x(V) 0.54545)
SiV-98Ran-LB.tdb	1923.95	SI2V_C40 (x(V) 0.33333) + LIQUID (x(V) 0.40257) + SI5V6 (x(V) 0.54545)
SiV-98Ran-LB.tdb	1923.95	SI2V_C40 (x(V) 0.33333) + LIQUID (x(V) 0.40248) + SI5V6 (x(V) 0.54545)
SiV-98Ran-LB.tdb	1675.08	DIAMOND_A4 (x(V) 0) + LIQUID (x(V) 0.03098) + SI2V_C40 (x(V) 0.33333)
SiV-98Ran-LB.tdb	1675.08	DIAMOND_A4 (x(V) 0) + LIQUID (x(V) 0.03057) + SI2V_C40 (x(V) 0.33333)
SiV-98Ran-LB.tdb	1434.65	SI2V_C40 (x(V) 0.33333) + SI5V6 (x(V) 0.54545) + SI3V5_D8M (x(V) 0.625)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull SiV-08Zha · CALPHAD hull SiV-13Bro · CALPHAD hull SiV-98Ran-LB

Invariant reactions (literature)

Invariant reactions reported in the literature for the Si–V system (12)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
2187.15	eutectic: L -> V5Si3 + V3Si	L: V 0.722; V5Si3: V 0.625; V3Si: V 0.751	unspecified	[1] Zhang 2008	Table 4, p. 4, row 12 report
2168.15	eutectic: L -> V5Si3 + V3Si	L: V 0.71; V5Si3: V 0.625; V3Si: V 0.745	experimental	[1] Zhang 2008 cites Jorda 1982 doi	Table 4, p. 4, row 11 report
2143.15	eutectic: L -> V3Si + (V)	L: V 0.87; V3Si: V 0.81; (V): V 0.93	experimental	[1] Zhang 2008 cites Jorda 1982 doi	Table 4, p. 4, row 15 report
2110.15	eutectic: L -> V3Si + (V)	L: V 0.892; V3Si: V 0.801; (V): V 0.952	unspecified	[1] Zhang 2008	Table 4, p. 4, row 16 report
1943.15	L + V5Si3 -> V6Si5	L: V 0.43; V5Si3: V 0.625; V6Si5: V 0.546	experimental	[1] Zhang 2008 cites Yu 1973	Table 4, p. 4, row 7 report
1940.15	L + V5Si3 -> V6Si5	L: V 0.438; V5Si3: V 0.625; V6Si5: V 0.546	unspecified	[1] Zhang 2008	Table 4, p. 4, row 8 report
1913.15	eutectic: L -> VSi2 + V6Si5	L: V 0.41; VSi2: V 0.334; V6Si5: V 0.546	experimental	[1] Zhang 2008 cites Yu 1973	Table 4, p. 4, row 5 report
1904.15	eutectic: L -> VSi2 + V6Si5	L: V 0.424; VSi2: V 0.334; V6Si5: V 0.546	unspecified	[1] Zhang 2008	Table 4, p. 4, row 6 report
1668.15	eutectic: L -> (Si) + VSi2	L: V 0.053; (Si): V 0; VSi2: V 0.334	unspecified	[1] Zhang 2008	Table 4, p. 4, row 2 report
1666.15	eutectic: L -> (Si) + VSi2	L: V 0.05; (Si): V 0; VSi2: V 0.334	experimental	[1] Zhang 2008	Table 4, p. 4, row 1 report
733.15	V6Si5 -> V5Si3 + VSi2	V6Si5: V 0.546; V5Si3: V 0.625; VSi2: V 0.334	model	[1] Zhang 2008 cites Zhang 2007 doi	Table 4, p. 4, row 17 report
732.15	V6Si5 -> V5Si3 + VSi2	V6Si5: V 0.546; V5Si3: V 0.625; VSi2: V 0.334	unspecified	[1] Zhang 2008	Table 4, p. 4, row 18 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, Si–V system (66)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location
Si2V	Si2V	-54.674 kJ/mol-atom		model	-42.137 (mp-aaaaapvz)	-45.955 (oqmd-16520)	[2] Luo 2018	Table 3, p. 5, row 23 report
Si2V	Si2V	-54.1 kJ/mol-atom		model	-42.137 (mp-aaaaapvz)	-45.955 (oqmd-16520)	[2] Luo 2018 cites Zhang 2008 doi	Table 3, p. 5, row 21 report
Si2V		-47 kJ/mol-atom	0	DFT			[2] Luo 2018 cites Broz 2013 doi	Table 3, p. 5, row 22 report
Si2V	Si2V	-44.4 kJ/mol-atom ± 1	298.15	experimental	-42.137 (mp-aaaaapvz)	-45.955 (oqmd-16520)	[2] Luo 2018 cites OHare 2000	Table 3, p. 5, row 24 report
Si2V	Si2V	-8.285 kJ/mol-atom		model	-42.137 (mp-aaaaapvz)	-45.955 (oqmd-16520)	[2] Luo 2018	Table 3, p. 5, row 25 report
Si3V	Si3V	6.3 kJ/mol-atom	0	unspecified		1.542 (oqmd-2031400)	[3] Broz 2013	Table 2, p. 6, row 19 report
Si3V	Si3V	54.3 kJ/mol-atom	0	model		1.542 (oqmd-2031400)	[3] Broz 2013 cites Zhang 2008 doi	Table 2, p. 6, row 20 report
Si3V5	Si3V5	-59 kJ/mol-atom ± 2	298.15	experimental	-53.719 (mp-aaabgjfz)	-55.174 (oqmd-31069)	[2] Luo 2018 cites Meschel 1998 doi	Table 3, p. 5, row 17 report
Si3V5		-57.6 kJ/mol-atom	0	DFT			[2] Luo 2018 cites Broz 2013 doi	Table 3, p. 5, row 16 report
Si3V5	Si3V5	-55.4 kJ/mol-atom		model	-53.719 (mp-aaabgjfz)	-55.174 (oqmd-31069)	[2] Luo 2018 cites Zhang 2008 doi	Table 3, p. 5, row 15 report
Si3V5	Si3V5	-43.584 kJ/mol-atom		model	-53.719 (mp-aaabgjfz)	-55.174 (oqmd-31069)	[2] Luo 2018	Table 3, p. 5, row 18 report
Si3V5	Si3V5	-17.465 kJ/mol-atom		model	-53.719 (mp-aaabgjfz)	-55.174 (oqmd-31069)	[2] Luo 2018	Table 3, p. 5, row 19 report
Si3V5	Si3V5	-10.955 kJ/mol-atom		model	-53.719 (mp-aaabgjfz)	-55.174 (oqmd-31069)	[2] Luo 2018	Table 3, p. 5, row 20 report
V3Si	SiV3	-46.4 kJ/mol-atom ± 1	298.15	experimental	-42.956 (mp-aaaaadut)	-45.324 (oqmd-4182)	[1] Zhang 2008 cites Meschel 1998 doi	Table 2, p. 3, row 12 report
V3Si	SiV3	-46.4 kJ/mol-atom ± 1	298.15	experimental	-42.956 (mp-aaaaadut)	-45.324 (oqmd-4182)	[3] Broz 2013 cites Meschel 1998 doi	Table 2, p. 6, row 12 report
V3Si		-45.23 kJ/mol-atom	298.15	DFT			[1] Zhang 2008 cites Zhang 2007 doi	Table 2, p. 3, row 22 report
V3Si	SiV3	-45.2 kJ/mol-atom		model	-42.956 (mp-aaaaadut)	-45.324 (oqmd-4182)	[3] Broz 2013 cites Zhang 2007 doi	Table 2, p. 6, row 15 report
V3Si	SiV3	-45.1 kJ/mol-atom ± 2	298.15	experimental	-42.956 (mp-aaaaadut)	-45.324 (oqmd-4182)	[3] Broz 2013 cites Eremenko 1975	Table 2, p. 6, row 10 report
V3Si	SiV3	-45.1 kJ/mol-atom ± 2	298.15	experimental	-42.956 (mp-aaaaadut)	-45.324 (oqmd-4182)	[1] Zhang 2008 cites Eremenko 1976	Table 2, p. 3, row 7 report
V3Si	SiV3	-44.5 kJ/mol-atom	0	unspecified	-42.956 (mp-aaaaadut)	-45.324 (oqmd-4182)	[3] Broz 2013	Table 2, p. 6, row 8 report
V3Si	SiV3	-44.3 kJ/mol-atom	0	model	-42.956 (mp-aaaaadut)	-45.324 (oqmd-4182)	[3] Broz 2013 cites Zhang 2008 doi	Table 2, p. 6, row 16 report
V3Si	SiV3	-41.8 kJ/mol-atom ± 1	298.15	experimental	-42.956 (mp-aaaaadut)	-45.324 (oqmd-4182)	[3] Broz 2013 cites P 2000	Table 2, p. 6, row 13 report
V3Si	SiV3	-41.75 kJ/mol-atom ± 1	298.15	experimental	-42.956 (mp-aaaaadut)	-45.324 (oqmd-4182)	[1] Zhang 2008 cites OHare 2000 doi	Table 2, p. 3, row 14 report
V3Si	SiV3	-38.8 kJ/mol-atom ± 1	298.15	experimental	-42.956 (mp-aaaaadut)	-45.324 (oqmd-4182)	[3] Broz 2013 cites Storms 1985	Table 2, p. 6, row 11 report
V3Si	SiV3	-38.75 kJ/mol-atom ± 1	298.15	experimental	-42.956 (mp-aaaaadut)	-45.324 (oqmd-4182)	[1] Zhang 2008 cites Storms 1985	Table 2, p. 3, row 10 report
V3Si	SiV3	-35.3 kJ/mol-atom ± 3	298.15	experimental	-42.956 (mp-aaaaadut)	-45.324 (oqmd-4182)	[3] Broz 2013 cites Gorelkin 1971	Table 2, p. 6, row 9 report
V3Si	SiV3	-35.25 kJ/mol-atom ± 3	298.15	experimental	-42.956 (mp-aaaaadut)	-45.324 (oqmd-4182)	[1] Zhang 2008 cites Gorelkin 1971	Table 2, p. 3, row 3 report
V3Si	SiV3	-33.9 kJ/mol-atom		model	-42.956 (mp-aaaaadut)	-45.324 (oqmd-4182)	[3] Broz 2013 cites Chen 2006 doi	Table 2, p. 6, row 14 report
V3Si	SiV3	-33.88 kJ/mol-atom	298.15	model	-42.956 (mp-aaaaadut)	-45.324 (oqmd-4182)	[1] Zhang 2008 cites Chen 2006 doi	Table 2, p. 3, row 18 report
V5Si3	Si3V5	-59 kJ/mol-atom ± 2	298.15	experimental	-53.719 (mp-aaabgjfz)	-55.174 (oqmd-31069)	[1] Zhang 2008 cites Meschel 1998 doi	Table 2, p. 3, row 11 report
V5Si3	Si3V5	-59 kJ/mol-atom ± 2	298.15	experimental	-53.719 (mp-aaabgjfz)	-55.174 (oqmd-31069)	[3] Broz 2013 cites Meschel 1998 doi	Table 2, p. 6, row 31 report
V5Si3	Si3V5	-58.1 kJ/mol-atom ± 3	298.15	experimental	-53.719 (mp-aaabgjfz)	-55.174 (oqmd-31069)	[3] Broz 2013 cites Gorelkin 1971	Table 2, p. 6, row 28 report
V5Si3	Si3V5	-58.1 kJ/mol-atom ± 3	298.15	experimental	-53.719 (mp-aaabgjfz)	-55.174 (oqmd-31069)	[1] Zhang 2008 cites Gorelkin 1971	Table 2, p. 3, row 2 report
V5Si3	Si3V5	-57.6 kJ/mol-atom	0	unspecified	-53.719 (mp-aaabgjfz)	-55.174 (oqmd-31069)	[3] Broz 2013	Table 2, p. 6, row 27 report
V5Si3	Si3V5	-55.4 kJ/mol-atom	0	model	-53.719 (mp-aaabgjfz)	-55.174 (oqmd-31069)	[3] Broz 2013 cites Zhang 2008 doi	Table 2, p. 6, row 34 report
V5Si3	Si3V5	-54.2 kJ/mol-atom ± 2	298.15	experimental	-53.719 (mp-aaabgjfz)	-55.174 (oqmd-31069)	[3] Broz 2013 cites Eremenko 1975	Table 2, p. 6, row 29 report
V5Si3	Si3V5	-54.2 kJ/mol-atom ± 2	298.15	experimental	-53.719 (mp-aaabgjfz)	-55.174 (oqmd-31069)	[1] Zhang 2008 cites Eremenko 1976	Table 2, p. 3, row 5 report
V5Si3		-53.73 kJ/mol-atom	298.15	DFT			[1] Zhang 2008 cites Zhang 2007 doi	Table 2, p. 3, row 20 report
V5Si3	Si3V5	-53.7 kJ/mol-atom		model	-53.719 (mp-aaabgjfz)	-55.174 (oqmd-31069)	[3] Broz 2013 cites Zhang 2007 doi	Table 2, p. 6, row 33 report
V5Si3	Si3V5	-50.5 kJ/mol-atom ± 1	298.15	experimental	-53.719 (mp-aaabgjfz)	-55.174 (oqmd-31069)	[3] Broz 2013 cites Storms 1985	Table 2, p. 6, row 30 report
V5Si3	Si3V5	-50.48 kJ/mol-atom ± 1	298.15	experimental	-53.719 (mp-aaabgjfz)	-55.174 (oqmd-31069)	[1] Zhang 2008 cites Storms 1985	Table 2, p. 3, row 9 report
V5Si3	Si3V5	-46 kJ/mol-atom		model	-53.719 (mp-aaabgjfz)	-55.174 (oqmd-31069)	[3] Broz 2013 cites Chen 2006 doi	Table 2, p. 6, row 32 report
V5Si3	Si3V5	-45.95 kJ/mol-atom	298.15	model	-53.719 (mp-aaabgjfz)	-55.174 (oqmd-31069)	[1] Zhang 2008 cites Chen 2006 doi	Table 2, p. 3, row 16 report
V6Si5	Si5V6	-52.8 kJ/mol-atom	0	model	-49.196 (mp-aaaaablo)	-51.21 (oqmd-31070)	[3] Broz 2013 cites Zhang 2008 doi	Table 2, p. 6, row 22 report
V6Si5	Si5V6	-52.7 kJ/mol-atom	0	unspecified	-49.196 (mp-aaaaablo)	-51.21 (oqmd-31070)	[3] Broz 2013	Table 2, p. 6, row 23 report
V6Si5		-51.22 kJ/mol-atom	298.15	DFT			[1] Zhang 2008 cites Zhang 2007 doi	Table 2, p. 3, row 21 report
V6Si5	Si5V6	-51.2 kJ/mol-atom		model	-49.196 (mp-aaaaablo)	-51.21 (oqmd-31070)	[3] Broz 2013 cites Chen 2006 doi	Table 2, p. 6, row 26 report
V6Si5	Si5V6	-50.7 kJ/mol-atom ± 2	298.15	experimental	-49.196 (mp-aaaaablo)	-51.21 (oqmd-31070)	[1] Zhang 2008 cites Eremenko 1976	Table 2, p. 3, row 6 report
V6Si5	Si5V6	-50.7 kJ/mol-atom ± 2	298.15	experimental	-49.196 (mp-aaaaablo)	-51.21 (oqmd-31070)	[3] Broz 2013 cites Eremenko 1975	Table 2, p. 6, row 24 report
V6Si5	Si5V6	-48.13 kJ/mol-atom	298.15	model	-49.196 (mp-aaaaablo)	-51.21 (oqmd-31070)	[1] Zhang 2008 cites Chen 2006 doi	Table 2, p. 3, row 17 report
V6Si5	Si5V6	-48.1 kJ/mol-atom		model	-49.196 (mp-aaaaablo)	-51.21 (oqmd-31070)	[3] Broz 2013 cites Chen 2006 doi	Table 2, p. 6, row 25 report
V6Si5	Si5V6	-44.1 kJ/mol-atom	0	unspecified	-49.196 (mp-aaaaablo)	-51.21 (oqmd-31070)	[3] Broz 2013	Table 2, p. 6, row 21 report
VSi2	Si2V	-54.1 kJ/mol-atom	0	model	-42.137 (mp-aaaaapvz)	-45.955 (oqmd-16520)	[3] Broz 2013 cites Zhang 2008 doi	Table 2, p. 6, row 42 report
VSi2	Si2V	-47 kJ/mol-atom	0	unspecified	-42.137 (mp-aaaaapvz)	-45.955 (oqmd-16520)	[3] Broz 2013	Table 2, p. 6, row 35 report
VSi2		-45.91 kJ/mol-atom	298.15	DFT			[1] Zhang 2008 cites Zhang 2007 doi	Table 2, p. 3, row 19 report
VSi2	Si2V	-45.9 kJ/mol-atom		model	-42.137 (mp-aaaaapvz)	-45.955 (oqmd-16520)	[3] Broz 2013 cites Zhang 2007 doi	Table 2, p. 6, row 41 report
VSi2	Si2V	-44.43 kJ/mol-atom ± 1	298.15	experimental	-42.137 (mp-aaaaapvz)	-45.955 (oqmd-16520)	[1] Zhang 2008 cites OHare 1999 doi	Table 2, p. 3, row 13 report
VSi2	Si2V	-44.4 kJ/mol-atom ± 1	298.15	experimental	-42.137 (mp-aaaaapvz)	-45.955 (oqmd-16520)	[3] Broz 2013 cites P 1999	Table 2, p. 6, row 39 report
VSi2	Si2V	-41.7 kJ/mol-atom ± 3	298.15	experimental	-42.137 (mp-aaaaapvz)	-45.955 (oqmd-16520)	[3] Broz 2013 cites Gorelkin 1971	Table 2, p. 6, row 36 report
VSi2	Si2V	-41.67 kJ/mol-atom ± 3	298.15	experimental	-42.137 (mp-aaaaapvz)	-45.955 (oqmd-16520)	[1] Zhang 2008 cites Gorelkin 1971	Table 2, p. 3, row 1 report
VSi2	Si2V	-41.5 kJ/mol-atom ± 2	298.15	experimental	-42.137 (mp-aaaaapvz)	-45.955 (oqmd-16520)	[1] Zhang 2008 cites Eremenko 1976	Table 2, p. 3, row 4 report
VSi2	Si2V	-41.5 kJ/mol-atom ± 2	298.15	experimental	-42.137 (mp-aaaaapvz)	-45.955 (oqmd-16520)	[3] Broz 2013 cites Eremenko 1975	Table 2, p. 6, row 37 report
VSi2	Si2V	-39.7 kJ/mol-atom ± 1	298.15	experimental	-42.137 (mp-aaaaapvz)	-45.955 (oqmd-16520)	[3] Broz 2013 cites Storms 1985	Table 2, p. 6, row 38 report
VSi2	Si2V	-39.67 kJ/mol-atom ± 1	298.15	experimental	-42.137 (mp-aaaaapvz)	-45.955 (oqmd-16520)	[1] Zhang 2008 cites Storms 1985	Table 2, p. 3, row 8 report
VSi2	Si2V	-29 kJ/mol-atom		model	-42.137 (mp-aaaaapvz)	-45.955 (oqmd-16520)	[3] Broz 2013 cites Chen 2006 doi	Table 2, p. 6, row 40 report
VSi2	Si2V	-29 kJ/mol-atom	298.15	model	-42.137 (mp-aaaaapvz)	-45.955 (oqmd-16520)	[1] Zhang 2008 cites Chen 2006 doi	Table 2, p. 3, row 15 report

Other properties

Phase transition (7)

Phase transition, Si–V system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	1665.15 K	1665.15	eutectic: V3Si97 alloy: Si 0.97, V 0.03	experimental	[1] Zhang 2008	Table 1, p. 2, row 3 report
Phase transition	1943.15 K	1943.15	L -> VSi2 L: V 0.334; VSi2: V 0.334	experimental	[1] Zhang 2008 cites Kalishevich 1968	Table 4, p. 4, row 3 report
Phase transition	1956.15 K	1956.15	L -> VSi2 L: V 0.334; VSi2: V 0.334	unspecified	[1] Zhang 2008	Table 4, p. 4, row 4 report
Phase transition	2194.15 K	2194.15	L -> V3Si L: V 0.75; V3Si: V 0.75	unspecified	[1] Zhang 2008	Table 4, p. 4, row 14 report
Phase transition	2198.15 K	2198.15	L -> V3Si L: V 0.75; V3Si: V 0.75	experimental	[1] Zhang 2008 cites Jorda 1982 doi	Table 4, p. 4, row 13 report
Phase transition	2260.15 K	2260.15	L -> V5Si3 L: V 0.625; V5Si3: V 0.625	unspecified	[1] Zhang 2008	Table 4, p. 4, row 10 report
Phase transition	2283.15 K	2283.15	L -> V5Si3 L: V 0.625; V5Si3: V 0.625	experimental	[1] Zhang 2008 cites Yu 1973	Table 4, p. 4, row 9 report

Phase equilibrium (2)

Phase equilibrium, Si–V system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase composition		1681.15	other: V7Si93 liquid: Si 0.93, V 0.07	experimental	[1] Zhang 2008	Table 1, p. 2, row 2 report
Phase composition		1683.15	other: V3Si97 liquid: Si 0.97, V 0.03	experimental	[1] Zhang 2008	Table 1, p. 2, row 4 report

Crystal structure (42)

Crystal structure, Si–V system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Lattice a printed: a	4.872 Å		Si2V alloy: Si 0.666667, V 0.333333	model	[2] Luo 2018	Table 3, p. 5, row 25 report
Lattice a printed: a	4.573 Å		Si2V alloy: Si 0.666667, V 0.333333	model	[2] Luo 2018 cites Zhang 2008 doi	Table 3, p. 5, row 21 report
Lattice a printed: a	4.578 Å		Si2V alloy: Si 0.666667, V 0.333333	model	[2] Luo 2018	Table 3, p. 5, row 23 report
Lattice a printed: a	4.563 Å	0	Si2V alloy: Si 0.666667, V 0.333333	DFT	[2] Luo 2018 cites Broz 2013 doi	Table 3, p. 5, row 22 report
Lattice a printed: a	9.49 Å		Si3V5 alloy: Si 0.375, V 0.625	model	[2] Luo 2018	Table 3, p. 5, row 18 report
Lattice a printed: a	9.395 Å	0	Si3V5 alloy: Si 0.375, V 0.625	DFT	[2] Luo 2018 cites Broz 2013 doi	Table 3, p. 5, row 16 report
Lattice a printed: a	9.383 Å		Si3V5 alloy: Si 0.375, V 0.625	model	[2] Luo 2018 cites Zhang 2008 doi	Table 3, p. 5, row 15 report
Lattice a printed: a	9.864 Å		Si3V5 alloy: Si 0.375, V 0.625	model	[2] Luo 2018	Table 3, p. 5, row 20 report
Lattice a	4.711 Å	0	V3Si alloy: V 0.75	DFT	[3] Broz 2013	Table 1, p. 3, row 39 report
Lattice a	9.395 Å	0	V5Si3 alloy: V 0.625	DFT	[3] Broz 2013	Table 1, p. 3, row 21 report
Lattice a	4.882 Å	0	V6Si5 alloy: V 0.545455	DFT	[3] Broz 2013	Table 1, p. 3, row 43 report
Lattice a	7.483 Å	0	V6Si5 alloy: V 0.545455	DFT	[3] Broz 2013	Table 1, p. 3, row 45 report
Lattice a	4.563 Å	0	VSi2 alloy: V 0.333333	DFT	[3] Broz 2013	Table 1, p. 3, row 36 report
Lattice a	4.725 Å	298.15	V3Si alloy: V 0.75	unspecified	[3] Broz 2013 cites Zhang 2008 doi	Table 1, p. 3, row 37 report
Lattice a	4.727 Å	298.15	V3Si alloy: V 0.75	model	[3] Broz 2013 cites Kanematsu 1986 doi	Table 1, p. 3, row 38 report
Lattice a	9.383 Å	298.15	V5Si3 alloy: V 0.625	unspecified	[3] Broz 2013 cites Zhang 2008 doi	Table 1, p. 3, row 19 report
Lattice a	0.94264 not_printed ± 4.000e-5	298.15	V5Si3 alloy: V 0.625	experimental	[3] Broz 2013 cites Khan 2012 doi	Table 1, p. 3, row 20 report
Lattice a	4.858 Å	298.15	V6Si5 alloy: V 0.545455	model	[3] Broz 2013 cites Zhang 2008 doi	Table 1, p. 3, row 42 report
Lattice a	7.501 Å	298.15	V6Si5 alloy: V 0.545455	model	[3] Broz 2013 cites Spinat 1970 doi	Table 1, p. 3, row 44 report
Lattice a	4.573 Å	298.15	VSi2 alloy: V 0.333333	unspecified	[3] Broz 2013 cites Zhang 2008 doi	Table 1, p. 3, row 35 report
Lattice b	16.012 Å	0	V6Si5 alloy: V 0.545455	DFT	[3] Broz 2013	Table 1, p. 3, row 43 report
Lattice b	15.897 Å	0	V6Si5 alloy: V 0.545455	DFT	[3] Broz 2013	Table 1, p. 3, row 45 report
Lattice b	15.966 Å	298.15	V6Si5 alloy: V 0.545455	model	[3] Broz 2013 cites Zhang 2008 doi	Table 1, p. 3, row 42 report
Lattice b	15.966 Å	298.15	V6Si5 alloy: V 0.545455	model	[3] Broz 2013 cites Spinat 1970 doi	Table 1, p. 3, row 44 report
Lattice c printed: c	6.736 Å		Si2V alloy: Si 0.666667, V 0.333333	model	[2] Luo 2018	Table 3, p. 5, row 25 report
Lattice c printed: c	6.374 Å		Si2V alloy: Si 0.666667, V 0.333333	model	[2] Luo 2018 cites Zhang 2008 doi	Table 3, p. 5, row 21 report
Lattice c printed: c	6.367 Å		Si2V alloy: Si 0.666667, V 0.333333	model	[2] Luo 2018	Table 3, p. 5, row 23 report
Lattice c printed: c	6.364 Å	0	Si2V alloy: Si 0.666667, V 0.333333	DFT	[2] Luo 2018 cites Broz 2013 doi	Table 3, p. 5, row 22 report
Lattice c printed: c	4.86 Å		Si3V5 alloy: Si 0.375, V 0.625	model	[2] Luo 2018	Table 3, p. 5, row 18 report
Lattice c printed: c	4.731 Å	0	Si3V5 alloy: Si 0.375, V 0.625	DFT	[2] Luo 2018 cites Broz 2013 doi	Table 3, p. 5, row 16 report
Lattice c printed: c	4.76 Å		Si3V5 alloy: Si 0.375, V 0.625	model	[2] Luo 2018 cites Zhang 2008 doi	Table 3, p. 5, row 15 report
Lattice c printed: c	4.812 Å		Si3V5 alloy: Si 0.375, V 0.625	model	[2] Luo 2018	Table 3, p. 5, row 20 report
Lattice c printed: c	4.682 Å		Si3V5 alloy: Si 0.375, V 0.625	model	[2] Luo 2018	Table 3, p. 5, row 19 report
Lattice c	4.731 Å	0	V5Si3 alloy: V 0.625	DFT	[3] Broz 2013	Table 1, p. 3, row 21 report
Lattice c	7.582 Å	0	V6Si5 alloy: V 0.545455	DFT	[3] Broz 2013	Table 1, p. 3, row 43 report
Lattice c	4.827 Å	0	V6Si5 alloy: V 0.545455	DFT	[3] Broz 2013	Table 1, p. 3, row 45 report
Lattice c	6.364 Å	0	VSi2 alloy: V 0.333333	DFT	[3] Broz 2013	Table 1, p. 3, row 36 report
Lattice c	4.76 Å	298.15	V5Si3 alloy: V 0.625	unspecified	[3] Broz 2013 cites Zhang 2008 doi	Table 1, p. 3, row 19 report
Lattice c	0.47585 not_printed ± 3.000e-5	298.15	V5Si3 alloy: V 0.625	experimental	[3] Broz 2013 cites Khan 2012 doi	Table 1, p. 3, row 20 report
Lattice c	7.501 Å	298.15	V6Si5 alloy: V 0.545455	model	[3] Broz 2013 cites Zhang 2008 doi	Table 1, p. 3, row 42 report
Lattice c	4.858 Å	298.15	V6Si5 alloy: V 0.545455	model	[3] Broz 2013 cites Spinat 1970 doi	Table 1, p. 3, row 44 report
Lattice c	6.374 Å	298.15	VSi2 alloy: V 0.333333	unspecified	[3] Broz 2013 cites Zhang 2008 doi	Table 1, p. 3, row 35 report

Sources

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

Chao Zhang, Yong Du, Wei Xiong, Honghui Xu, Philip Nash, Yifang Ouyang et al., Thermodynamic modeling of the V–Si system supported by key experiments, Calphad 32, 320-325 (2008). doi:10.1016/j.calphad.2007.12.005
Qun Luo, Kang Li, Qian Li, Thermodynamic investigation of phase equilibria in Al–Si–V system, Journal of Materials Science & Technology 34, 1592-1601 (2018). doi:10.1016/j.jmst.2018.01.004
P. Broz, A.U. Khan, H. Niu, X.-Q. Chen, D. Li, J. Vrestal et al., The system Ta–V–Si: Thermodynamic modeling, Journal of Solid State Chemistry 199, 171-180 (2013). doi:10.1016/j.jssc.2012.12.003

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}
}