# Si–V system

> Si–V system: 129 accepted literature values (formation 66, crystal structure 42, invariant reaction 12, phase transition 7) and 4 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/SI-V.html · Markdown: https://data.orchid-project.org/systems/SI-V.md

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](https://data.orchid-project.org/literature/systems/SI-V.json) · [CSV](https://data.orchid-project.org/systems/SI-V.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#SI-V) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#SI-V/SiV-08Zha.json) · [phases (9)](https://data.orchid-project.org/phases/pages/SI-V.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/SI-V.html) · [Markdown](https://data.orchid-project.org/systems/SI-V.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 43 |
| model | 45 |
| DFT | 21 |
| unspecified | 20 |

Table: 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.

Table: 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](https://doi.org/10.1016/j.calphad.2007.12.005) | `d01d1621f6968f15e8ca1175cee9277ffbac8337f3e6073954f8c4df9ac13dde` | [viewer](https://orchid-project.org/phase-diagrams/#SI-V/SiV-08Zha.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/SiV-08Zha.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/SiV-08Zha.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](https://doi.org/10.1016/j.jssc.2012.12.003) | `cebc0d060764ec48b00e47cc9acbca2cfee88347e3418d0573b422776d4d710c` | [viewer](https://orchid-project.org/phase-diagrams/#SI-V/SiV-13Bro.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/SiV-13Bro.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/SiV-13Bro.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](https://doi.org/10.1016/j.jmst.2018.01.004) | `0d98c164803523054de1cfded3e7f11063a581698511cbd28859742e852128d1` | [viewer](https://orchid-project.org/phase-diagrams/#SI-V/SiV-18Luo.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/SiV-18Luo.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/SiV-18Luo.json) |
| SiV-98Ran-LB.tdb | M.H. Rand, N. Saunders, COST 507, Final report round 2, 1998. | `4c72cc6ebad4ef74850283ffbaadc85af4efe1b64235c1e5bef1928ea6ccfd5b` | [viewer](https://orchid-project.org/phase-diagrams/#SI-V/SiV-98Ran-LB.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/SiV-98Ran-LB.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/SiV-98Ran-LB.json) |

Table: 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](https://data.orchid-project.org/hulls/dft-mp/SI/SI-V.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/SI/SI-V.json) · [CALPHAD hull SiV-08Zha](https://data.orchid-project.org/hulls/calphad-sgte/SI/SI-V--SiV-08Zha.json) · [CALPHAD hull SiV-13Bro](https://data.orchid-project.org/hulls/calphad-sgte/SI/SI-V--SiV-13Bro.json) · [CALPHAD hull SiV-98Ran-LB](https://data.orchid-project.org/hulls/calphad-sgte/SI/SI-V--SiV-98Ran-LB.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Si–V system (12)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 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; `ORC-PGU46YRFQH` |  |
| 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](https://doi.org/10.1016/0022-5088%2882%2990126-6) | Table 4, p. 4, row 11; `ORC-32UQKUXCS4` |  |
| 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](https://doi.org/10.1016/0022-5088%2882%2990126-6) | Table 4, p. 4, row 15; `ORC-7J3SZ3QMWY` |  |
| 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; `ORC-AEWIBF6YF3` |  |
| 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; `ORC-7OGQT57CAQ` |  |
| 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; `ORC-6SMD23LOSF` |  |
| 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; `ORC-IFUAEGAQYL` |  |
| 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; `ORC-7CJKQWD6T5` |  |
| 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; `ORC-WJIVE6EEEM` |  |
| 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; `ORC-OGZHAEJNXO` |  |
| 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](https://doi.org/10.1007/s10853-007-1865-6) | Table 4, p. 4, row 17; `ORC-ZETX4FEOCV` |  |
| 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; `ORC-3YI2O7UC74` |  |

## 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](https://data.orchid-project.org/literature/dft_parity.json).

Table: 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 | Quote |
|---|---|---:|---:|---|---:|---:|---|---|---|
| Si2V | [Si2V](https://data.orchid-project.org/compounds/Si2V.html) | -54.674 kJ/mol-atom |  | model | -42.137 (mp-aaaaapvz) | -45.955 (oqmd-16520) | [2] Luo 2018 | Table 3, p. 5, row 23; `ORC-MYXDZSOOKG` |  |
| Si2V | [Si2V](https://data.orchid-project.org/compounds/Si2V.html) | -54.1 kJ/mol-atom |  | model | -42.137 (mp-aaaaapvz) | -45.955 (oqmd-16520) | [2] Luo 2018; _cites Zhang 2008_ [doi](https://doi.org/10.1016/j.calphad.2007.12.005) | Table 3, p. 5, row 21; `ORC-2YCSLZ6MEB` |  |
| Si2V |  | -47 kJ/mol-atom | 0 | DFT |  |  | [2] Luo 2018; _cites Broz 2013_ [doi](https://doi.org/10.1016/j.jssc.2012.12.003) | Table 3, p. 5, row 22; `ORC-2RO2CPZLGD` |  |
| Si2V | [Si2V](https://data.orchid-project.org/compounds/Si2V.html) | -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; `ORC-YYTBKWC54S` |  |
| Si2V | [Si2V](https://data.orchid-project.org/compounds/Si2V.html) | -8.285 kJ/mol-atom |  | model | -42.137 (mp-aaaaapvz) | -45.955 (oqmd-16520) | [2] Luo 2018 | Table 3, p. 5, row 25; `ORC-S42MPJBDNY` |  |
| Si3V | [Si3V](https://data.orchid-project.org/compounds/Si3V.html) | 6.3 kJ/mol-atom | 0 | unspecified |  | 1.542 (oqmd-2031400) | [3] Broz 2013 | Table 2, p. 6, row 19; `ORC-5MMOK5QZYV.edf8ae` |  |
| Si3V | [Si3V](https://data.orchid-project.org/compounds/Si3V.html) | 54.3 kJ/mol-atom | 0 | model |  | 1.542 (oqmd-2031400) | [3] Broz 2013; _cites Zhang 2008_ [doi](https://doi.org/10.1016/j.calphad.2007.12.005) | Table 2, p. 6, row 20; `ORC-JO4R7F2VDG.9363b1` |  |
| Si3V5 | [Si3V5](https://data.orchid-project.org/compounds/Si3V5.html) | -59 kJ/mol-atom ± 2 | 298.15 | experimental | -53.719 (mp-aaabgjfz) | -55.174 (oqmd-31069) | [2] Luo 2018; _cites Meschel 1998_ [doi](https://doi.org/10.1016/s0925-8388%2897%2900528-8) | Table 3, p. 5, row 17; `ORC-UQXKCAW45X` |  |
| Si3V5 |  | -57.6 kJ/mol-atom | 0 | DFT |  |  | [2] Luo 2018; _cites Broz 2013_ [doi](https://doi.org/10.1016/j.jssc.2012.12.003) | Table 3, p. 5, row 16; `ORC-JHB4TPZQRJ` |  |
| Si3V5 | [Si3V5](https://data.orchid-project.org/compounds/Si3V5.html) | -55.4 kJ/mol-atom |  | model | -53.719 (mp-aaabgjfz) | -55.174 (oqmd-31069) | [2] Luo 2018; _cites Zhang 2008_ [doi](https://doi.org/10.1016/j.calphad.2007.12.005) | Table 3, p. 5, row 15; `ORC-JGGCTCCSK2` |  |
| Si3V5 | [Si3V5](https://data.orchid-project.org/compounds/Si3V5.html) | -43.584 kJ/mol-atom |  | model | -53.719 (mp-aaabgjfz) | -55.174 (oqmd-31069) | [2] Luo 2018 | Table 3, p. 5, row 18; `ORC-TE5W2GWK2K` |  |
| Si3V5 | [Si3V5](https://data.orchid-project.org/compounds/Si3V5.html) | -17.465 kJ/mol-atom |  | model | -53.719 (mp-aaabgjfz) | -55.174 (oqmd-31069) | [2] Luo 2018 | Table 3, p. 5, row 19; `ORC-2EVC7CW2S4` |  |
| Si3V5 | [Si3V5](https://data.orchid-project.org/compounds/Si3V5.html) | -10.955 kJ/mol-atom |  | model | -53.719 (mp-aaabgjfz) | -55.174 (oqmd-31069) | [2] Luo 2018 | Table 3, p. 5, row 20; `ORC-DY7B3NTYOU` |  |
| V3Si | [SiV3](https://data.orchid-project.org/compounds/SiV3.html) | -46.4 kJ/mol-atom ± 1 | 298.15 | experimental | -42.956 (mp-aaaaadut) | -45.324 (oqmd-4182) | [1] Zhang 2008; _cites Meschel 1998_ [doi](https://doi.org/10.1016/s0925-8388%2897%2900528-8) | Table 2, p. 3, row 12; `ORC-FFDVWGNDKF` |  |
| V3Si | [SiV3](https://data.orchid-project.org/compounds/SiV3.html) | -46.4 kJ/mol-atom ± 1 | 298.15 | experimental | -42.956 (mp-aaaaadut) | -45.324 (oqmd-4182) | [3] Broz 2013; _cites Meschel 1998_ [doi](https://doi.org/10.1016/s0925-8388%2897%2900528-8) | Table 2, p. 6, row 12; `ORC-JFNS7AKBWK.a2ca06` |  |
| V3Si |  | -45.23 kJ/mol-atom | 298.15 | DFT |  |  | [1] Zhang 2008; _cites Zhang 2007_ [doi](https://doi.org/10.1007/s10853-007-1865-6) | Table 2, p. 3, row 22; `ORC-5HU4OWBS3U` |  |
| V3Si | [SiV3](https://data.orchid-project.org/compounds/SiV3.html) | -45.2 kJ/mol-atom |  | model | -42.956 (mp-aaaaadut) | -45.324 (oqmd-4182) | [3] Broz 2013; _cites Zhang 2007_ [doi](https://doi.org/10.1007/s10853-007-1865-6) | Table 2, p. 6, row 15; `ORC-YMWCYBTRLO.4a04d0` |  |
| V3Si | [SiV3](https://data.orchid-project.org/compounds/SiV3.html) | -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; `ORC-BY2HU6MQNL.f33902` |  |
| V3Si | [SiV3](https://data.orchid-project.org/compounds/SiV3.html) | -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; `ORC-QEXAHZ3ONW` |  |
| V3Si | [SiV3](https://data.orchid-project.org/compounds/SiV3.html) | -44.5 kJ/mol-atom | 0 | unspecified | -42.956 (mp-aaaaadut) | -45.324 (oqmd-4182) | [3] Broz 2013 | Table 2, p. 6, row 8; `ORC-COBEAP4KVX.e19e0d` |  |
| V3Si | [SiV3](https://data.orchid-project.org/compounds/SiV3.html) | -44.3 kJ/mol-atom | 0 | model | -42.956 (mp-aaaaadut) | -45.324 (oqmd-4182) | [3] Broz 2013; _cites Zhang 2008_ [doi](https://doi.org/10.1016/j.calphad.2007.12.005) | Table 2, p. 6, row 16; `ORC-GVGTUTJRCF.95795b` |  |
| V3Si | [SiV3](https://data.orchid-project.org/compounds/SiV3.html) | -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; `ORC-NOQRPZOKOH.e98002` |  |
| V3Si | [SiV3](https://data.orchid-project.org/compounds/SiV3.html) | -41.75 kJ/mol-atom ± 1 | 298.15 | experimental | -42.956 (mp-aaaaadut) | -45.324 (oqmd-4182) | [1] Zhang 2008; _cites OHare 2000_ [doi](https://doi.org/10.1006/jcht.1999.0612) | Table 2, p. 3, row 14; `ORC-YLRSGGKRSG` |  |
| V3Si | [SiV3](https://data.orchid-project.org/compounds/SiV3.html) | -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; `ORC-Z4WCXIXYJK.f41241` |  |
| V3Si | [SiV3](https://data.orchid-project.org/compounds/SiV3.html) | -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; `ORC-WHRZQGJ3HU` |  |
| V3Si | [SiV3](https://data.orchid-project.org/compounds/SiV3.html) | -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; `ORC-B6H7GTR3L3.2cbd17` |  |
| V3Si | [SiV3](https://data.orchid-project.org/compounds/SiV3.html) | -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; `ORC-73PREVCNJL` |  |
| V3Si | [SiV3](https://data.orchid-project.org/compounds/SiV3.html) | -33.9 kJ/mol-atom |  | model | -42.956 (mp-aaaaadut) | -45.324 (oqmd-4182) | [3] Broz 2013; _cites Chen 2006_ [doi](https://doi.org/10.1016/j.calphad.2006.04.004) | Table 2, p. 6, row 14; `ORC-3TPLMBAZBR.227fc0` |  |
| V3Si | [SiV3](https://data.orchid-project.org/compounds/SiV3.html) | -33.88 kJ/mol-atom | 298.15 | model | -42.956 (mp-aaaaadut) | -45.324 (oqmd-4182) | [1] Zhang 2008; _cites Chen 2006_ [doi](https://doi.org/10.1016/j.calphad.2006.04.004) | Table 2, p. 3, row 18; `ORC-YFEOZOHFTZ` |  |
| V5Si3 | [Si3V5](https://data.orchid-project.org/compounds/Si3V5.html) | -59 kJ/mol-atom ± 2 | 298.15 | experimental | -53.719 (mp-aaabgjfz) | -55.174 (oqmd-31069) | [1] Zhang 2008; _cites Meschel 1998_ [doi](https://doi.org/10.1016/s0925-8388%2897%2900528-8) | Table 2, p. 3, row 11; `ORC-FWJ6LQCKTR` |  |
| V5Si3 | [Si3V5](https://data.orchid-project.org/compounds/Si3V5.html) | -59 kJ/mol-atom ± 2 | 298.15 | experimental | -53.719 (mp-aaabgjfz) | -55.174 (oqmd-31069) | [3] Broz 2013; _cites Meschel 1998_ [doi](https://doi.org/10.1016/s0925-8388%2897%2900528-8) | Table 2, p. 6, row 31; `ORC-MYA4FGX3D5.8f3b25` |  |
| V5Si3 | [Si3V5](https://data.orchid-project.org/compounds/Si3V5.html) | -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; `ORC-2V7Y755FUX.a9ae17` |  |
| V5Si3 | [Si3V5](https://data.orchid-project.org/compounds/Si3V5.html) | -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; `ORC-3A7QRR27QX` |  |
| V5Si3 | [Si3V5](https://data.orchid-project.org/compounds/Si3V5.html) | -57.6 kJ/mol-atom | 0 | unspecified | -53.719 (mp-aaabgjfz) | -55.174 (oqmd-31069) | [3] Broz 2013 | Table 2, p. 6, row 27; `ORC-P5SMKPU56G.ace4e3` |  |
| V5Si3 | [Si3V5](https://data.orchid-project.org/compounds/Si3V5.html) | -55.4 kJ/mol-atom | 0 | model | -53.719 (mp-aaabgjfz) | -55.174 (oqmd-31069) | [3] Broz 2013; _cites Zhang 2008_ [doi](https://doi.org/10.1016/j.calphad.2007.12.005) | Table 2, p. 6, row 34; `ORC-BDUK6IC4KH.2f633d` |  |
| V5Si3 | [Si3V5](https://data.orchid-project.org/compounds/Si3V5.html) | -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; `ORC-PUUXIOFR6P.73dd16` |  |
| V5Si3 | [Si3V5](https://data.orchid-project.org/compounds/Si3V5.html) | -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; `ORC-QV6JF2J44N` |  |
| V5Si3 |  | -53.73 kJ/mol-atom | 298.15 | DFT |  |  | [1] Zhang 2008; _cites Zhang 2007_ [doi](https://doi.org/10.1007/s10853-007-1865-6) | Table 2, p. 3, row 20; `ORC-3SHN2OB64J` |  |
| V5Si3 | [Si3V5](https://data.orchid-project.org/compounds/Si3V5.html) | -53.7 kJ/mol-atom |  | model | -53.719 (mp-aaabgjfz) | -55.174 (oqmd-31069) | [3] Broz 2013; _cites Zhang 2007_ [doi](https://doi.org/10.1007/s10853-007-1865-6) | Table 2, p. 6, row 33; `ORC-W2FCAIZHFR.f2c9dc` |  |
| V5Si3 | [Si3V5](https://data.orchid-project.org/compounds/Si3V5.html) | -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; `ORC-N7SXCG3K4J.03a9c0` |  |
| V5Si3 | [Si3V5](https://data.orchid-project.org/compounds/Si3V5.html) | -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; `ORC-INMUSS56OX` |  |
| V5Si3 | [Si3V5](https://data.orchid-project.org/compounds/Si3V5.html) | -46 kJ/mol-atom |  | model | -53.719 (mp-aaabgjfz) | -55.174 (oqmd-31069) | [3] Broz 2013; _cites Chen 2006_ [doi](https://doi.org/10.1016/j.calphad.2006.04.004) | Table 2, p. 6, row 32; `ORC-2PYZXLH7DF.e64460` |  |
| V5Si3 | [Si3V5](https://data.orchid-project.org/compounds/Si3V5.html) | -45.95 kJ/mol-atom | 298.15 | model | -53.719 (mp-aaabgjfz) | -55.174 (oqmd-31069) | [1] Zhang 2008; _cites Chen 2006_ [doi](https://doi.org/10.1016/j.calphad.2006.04.004) | Table 2, p. 3, row 16; `ORC-ICJ34P5ZPO` |  |
| V6Si5 | [Si5V6](https://data.orchid-project.org/compounds/Si5V6.html) | -52.8 kJ/mol-atom | 0 | model | -49.196 (mp-aaaaablo) | -51.21 (oqmd-31070) | [3] Broz 2013; _cites Zhang 2008_ [doi](https://doi.org/10.1016/j.calphad.2007.12.005) | Table 2, p. 6, row 22; `ORC-RDHUSWQ6RO.7ca1c1` |  |
| V6Si5 | [Si5V6](https://data.orchid-project.org/compounds/Si5V6.html) | -52.7 kJ/mol-atom | 0 | unspecified | -49.196 (mp-aaaaablo) | -51.21 (oqmd-31070) | [3] Broz 2013 | Table 2, p. 6, row 23; `ORC-FZ7K66SEY7.1b7578` |  |
| V6Si5 |  | -51.22 kJ/mol-atom | 298.15 | DFT |  |  | [1] Zhang 2008; _cites Zhang 2007_ [doi](https://doi.org/10.1007/s10853-007-1865-6) | Table 2, p. 3, row 21; `ORC-KP72AHKTW2` |  |
| V6Si5 | [Si5V6](https://data.orchid-project.org/compounds/Si5V6.html) | -51.2 kJ/mol-atom |  | model | -49.196 (mp-aaaaablo) | -51.21 (oqmd-31070) | [3] Broz 2013; _cites Chen 2006_ [doi](https://doi.org/10.1016/j.calphad.2006.04.004) | Table 2, p. 6, row 26; `ORC-DGB6VGUJK7.b97a31` |  |
| V6Si5 | [Si5V6](https://data.orchid-project.org/compounds/Si5V6.html) | -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; `ORC-5U2CRXZVLS` |  |
| V6Si5 | [Si5V6](https://data.orchid-project.org/compounds/Si5V6.html) | -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; `ORC-6LNQ3YT4SG.f6f47d` |  |
| V6Si5 | [Si5V6](https://data.orchid-project.org/compounds/Si5V6.html) | -48.13 kJ/mol-atom | 298.15 | model | -49.196 (mp-aaaaablo) | -51.21 (oqmd-31070) | [1] Zhang 2008; _cites Chen 2006_ [doi](https://doi.org/10.1016/j.calphad.2006.04.004) | Table 2, p. 3, row 17; `ORC-NYSZ5LL7KH` |  |
| V6Si5 | [Si5V6](https://data.orchid-project.org/compounds/Si5V6.html) | -48.1 kJ/mol-atom |  | model | -49.196 (mp-aaaaablo) | -51.21 (oqmd-31070) | [3] Broz 2013; _cites Chen 2006_ [doi](https://doi.org/10.1016/j.calphad.2006.04.004) | Table 2, p. 6, row 25; `ORC-RR7YCNGK2U.d5d036` |  |
| V6Si5 | [Si5V6](https://data.orchid-project.org/compounds/Si5V6.html) | -44.1 kJ/mol-atom | 0 | unspecified | -49.196 (mp-aaaaablo) | -51.21 (oqmd-31070) | [3] Broz 2013 | Table 2, p. 6, row 21; `ORC-L4MCHEX5G6.9eda7d` |  |
| VSi2 | [Si2V](https://data.orchid-project.org/compounds/Si2V.html) | -54.1 kJ/mol-atom | 0 | model | -42.137 (mp-aaaaapvz) | -45.955 (oqmd-16520) | [3] Broz 2013; _cites Zhang 2008_ [doi](https://doi.org/10.1016/j.calphad.2007.12.005) | Table 2, p. 6, row 42; `ORC-5NXXAZCV3G.f997db` |  |
| VSi2 | [Si2V](https://data.orchid-project.org/compounds/Si2V.html) | -47 kJ/mol-atom | 0 | unspecified | -42.137 (mp-aaaaapvz) | -45.955 (oqmd-16520) | [3] Broz 2013 | Table 2, p. 6, row 35; `ORC-PR2BW2XU6M.8ea770` |  |
| VSi2 |  | -45.91 kJ/mol-atom | 298.15 | DFT |  |  | [1] Zhang 2008; _cites Zhang 2007_ [doi](https://doi.org/10.1007/s10853-007-1865-6) | Table 2, p. 3, row 19; `ORC-WQDQE3WMWA` |  |
| VSi2 | [Si2V](https://data.orchid-project.org/compounds/Si2V.html) | -45.9 kJ/mol-atom |  | model | -42.137 (mp-aaaaapvz) | -45.955 (oqmd-16520) | [3] Broz 2013; _cites Zhang 2007_ [doi](https://doi.org/10.1007/s10853-007-1865-6) | Table 2, p. 6, row 41; `ORC-JRV4VLE5B5.f68ba6` |  |
| VSi2 | [Si2V](https://data.orchid-project.org/compounds/Si2V.html) | -44.43 kJ/mol-atom ± 1 | 298.15 | experimental | -42.137 (mp-aaaaapvz) | -45.955 (oqmd-16520) | [1] Zhang 2008; _cites OHare 1999_ [doi](https://doi.org/10.1006/jcht.1999.0579) | Table 2, p. 3, row 13; `ORC-TN3VW5X7D4` |  |
| VSi2 | [Si2V](https://data.orchid-project.org/compounds/Si2V.html) | -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; `ORC-S6OKYNP3SZ.f8c408` |  |
| VSi2 | [Si2V](https://data.orchid-project.org/compounds/Si2V.html) | -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; `ORC-XZLTNIIPM3.9ff47c` |  |
| VSi2 | [Si2V](https://data.orchid-project.org/compounds/Si2V.html) | -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; `ORC-EVKJ5NDESF` |  |
| VSi2 | [Si2V](https://data.orchid-project.org/compounds/Si2V.html) | -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; `ORC-SHZN2FNXY6` |  |
| VSi2 | [Si2V](https://data.orchid-project.org/compounds/Si2V.html) | -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; `ORC-WLDYUZIK3T.d8121c` |  |
| VSi2 | [Si2V](https://data.orchid-project.org/compounds/Si2V.html) | -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; `ORC-S2UGGDAQ7Q.ef55e3` |  |
| VSi2 | [Si2V](https://data.orchid-project.org/compounds/Si2V.html) | -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; `ORC-YC3TG34YZ3` |  |
| VSi2 | [Si2V](https://data.orchid-project.org/compounds/Si2V.html) | -29 kJ/mol-atom |  | model | -42.137 (mp-aaaaapvz) | -45.955 (oqmd-16520) | [3] Broz 2013; _cites Chen 2006_ [doi](https://doi.org/10.1016/j.calphad.2006.04.004) | Table 2, p. 6, row 40; `ORC-4Y3CJJQB5F.d39aab` |  |
| VSi2 | [Si2V](https://data.orchid-project.org/compounds/Si2V.html) | -29 kJ/mol-atom | 298.15 | model | -42.137 (mp-aaaaapvz) | -45.955 (oqmd-16520) | [1] Zhang 2008; _cites Chen 2006_ [doi](https://doi.org/10.1016/j.calphad.2006.04.004) | Table 2, p. 3, row 15; `ORC-JJ45LQ5ECG` |  |

## Other properties

### Phase transition (7)

Table: Phase transition, Si–V system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| 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; `ORC-EXA2IIJYNM` |  |
| 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; `ORC-CU3XYZJYTA` |  |
| 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; `ORC-ERAEL2CMZO` |  |
| 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; `ORC-EP4RHQQ6J5` |  |
| 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](https://doi.org/10.1016/0022-5088%2882%2990126-6) | Table 4, p. 4, row 13; `ORC-EIYVTQI5ZT` |  |
| 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; `ORC-7BMFN5HZMU` |  |
| 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; `ORC-5EHIFKM64N` |  |

### Phase equilibrium (2)

Table: 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; `ORC-Y6VNBZ5YVJ` |  |
| Phase composition |  | 1683.15 | other: V3Si97; _liquid: Si 0.97, V 0.03_ | experimental | [1] Zhang 2008 | Table 1, p. 2, row 4; `ORC-QBD7WXU7XC` |  |

### Crystal structure (42)

Table: Crystal structure, Si–V system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| 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; `ORC-ARHZUQUIVQ.cf9cdf` |  |
| Lattice a; _printed: a_ | 4.573 Å |  | Si2V; _alloy: Si 0.666667, V 0.333333_ | model | [2] Luo 2018; _cites Zhang 2008_ [doi](https://doi.org/10.1016/j.calphad.2007.12.005) | Table 3, p. 5, row 21; `ORC-PVPCCSRZWC.aec657` |  |
| 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; `ORC-T7JXWBHVL5.ca364e` |  |
| Lattice a; _printed: a_ | 4.563 Å | 0 | Si2V; _alloy: Si 0.666667, V 0.333333_ | DFT | [2] Luo 2018; _cites Broz 2013_ [doi](https://doi.org/10.1016/j.jssc.2012.12.003) | Table 3, p. 5, row 22; `ORC-W42XXH445F.fa7df8` |  |
| 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; `ORC-4JWKLO43JG.d0dd56` |  |
| Lattice a; _printed: a_ | 9.395 Å | 0 | Si3V5; _alloy: Si 0.375, V 0.625_ | DFT | [2] Luo 2018; _cites Broz 2013_ [doi](https://doi.org/10.1016/j.jssc.2012.12.003) | Table 3, p. 5, row 16; `ORC-4SWOUJHJLY.95bca1` |  |
| Lattice a; _printed: a_ | 9.383 Å |  | Si3V5; _alloy: Si 0.375, V 0.625_ | model | [2] Luo 2018; _cites Zhang 2008_ [doi](https://doi.org/10.1016/j.calphad.2007.12.005) | Table 3, p. 5, row 15; `ORC-CMUXFEVZTS.b6a53f` |  |
| 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; `ORC-OQ5OKHYTLK.19ee11` |  |
| Lattice a | 4.711 Å | 0 | V3Si; _alloy: V 0.75_ | DFT | [3] Broz 2013 | Table 1, p. 3, row 39; `ORC-6LBXCWDGUI` |  |
| Lattice a | 9.395 Å | 0 | V5Si3; _alloy: V 0.625_ | DFT | [3] Broz 2013 | Table 1, p. 3, row 21; `ORC-XTJRL73TU3.19f17a` |  |
| Lattice a | 4.882 Å | 0 | V6Si5; _alloy: V 0.545455_ | DFT | [3] Broz 2013 | Table 1, p. 3, row 43; `ORC-4QCPKRA2EI.d3d33b` |  |
| Lattice a | 7.483 Å | 0 | V6Si5; _alloy: V 0.545455_ | DFT | [3] Broz 2013 | Table 1, p. 3, row 45; `ORC-DEGVX3G5NU.d17044` |  |
| Lattice a | 4.563 Å | 0 | VSi2; _alloy: V 0.333333_ | DFT | [3] Broz 2013 | Table 1, p. 3, row 36; `ORC-7NEZTN4DBG.153c36` |  |
| Lattice a | 4.725 Å | 298.15 | V3Si; _alloy: V 0.75_ | unspecified | [3] Broz 2013; _cites Zhang 2008_ [doi](https://doi.org/10.1016/j.calphad.2007.12.005) | Table 1, p. 3, row 37; `ORC-3DVMS3V7XG` |  |
| Lattice a | 4.727 Å | 298.15 | V3Si; _alloy: V 0.75_ | model | [3] Broz 2013; _cites Kanematsu 1986_ [doi](https://doi.org/10.2320/matertrans1960.27.225) | Table 1, p. 3, row 38; `ORC-HPUUNUXFBY` |  |
| Lattice a | 9.383 Å | 298.15 | V5Si3; _alloy: V 0.625_ | unspecified | [3] Broz 2013; _cites Zhang 2008_ [doi](https://doi.org/10.1016/j.calphad.2007.12.005) | Table 1, p. 3, row 19; `ORC-42G4WDT2LW.0c96a6` |  |
| Lattice a | 0.94264 not_printed ± 4.000e-5 | 298.15 | V5Si3; _alloy: V 0.625_ | experimental | [3] Broz 2013; _cites Khan 2012_ [doi](https://doi.org/10.1016/j.jssc.2011.12.024) | Table 1, p. 3, row 20; `ORC-I7V4JKSTCI.7420d2` |  |
| Lattice a | 4.858 Å | 298.15 | V6Si5; _alloy: V 0.545455_ | model | [3] Broz 2013; _cites Zhang 2008_ [doi](https://doi.org/10.1016/j.calphad.2007.12.005) | Table 1, p. 3, row 42; `ORC-MNZLFTZKHC.82388e` |  |
| Lattice a | 7.501 Å | 298.15 | V6Si5; _alloy: V 0.545455_ | model | [3] Broz 2013; _cites Spinat 1970_ [doi](https://doi.org/10.3406/bulmi.1970.6423) | Table 1, p. 3, row 44; `ORC-WNI2INOMN6.702055` |  |
| Lattice a | 4.573 Å | 298.15 | VSi2; _alloy: V 0.333333_ | unspecified | [3] Broz 2013; _cites Zhang 2008_ [doi](https://doi.org/10.1016/j.calphad.2007.12.005) | Table 1, p. 3, row 35; `ORC-J6AWJTO77K.f0570d` |  |
| Lattice b | 16.012 Å | 0 | V6Si5; _alloy: V 0.545455_ | DFT | [3] Broz 2013 | Table 1, p. 3, row 43; `ORC-4QCPKRA2EI.e762a5` |  |
| Lattice b | 15.897 Å | 0 | V6Si5; _alloy: V 0.545455_ | DFT | [3] Broz 2013 | Table 1, p. 3, row 45; `ORC-DEGVX3G5NU.12ba8d` |  |
| Lattice b | 15.966 Å | 298.15 | V6Si5; _alloy: V 0.545455_ | model | [3] Broz 2013; _cites Zhang 2008_ [doi](https://doi.org/10.1016/j.calphad.2007.12.005) | Table 1, p. 3, row 42; `ORC-MNZLFTZKHC.bcd4aa` |  |
| Lattice b | 15.966 Å | 298.15 | V6Si5; _alloy: V 0.545455_ | model | [3] Broz 2013; _cites Spinat 1970_ [doi](https://doi.org/10.3406/bulmi.1970.6423) | Table 1, p. 3, row 44; `ORC-WNI2INOMN6.129e62` |  |
| 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; `ORC-ARHZUQUIVQ.896926` |  |
| Lattice c; _printed: c_ | 6.374 Å |  | Si2V; _alloy: Si 0.666667, V 0.333333_ | model | [2] Luo 2018; _cites Zhang 2008_ [doi](https://doi.org/10.1016/j.calphad.2007.12.005) | Table 3, p. 5, row 21; `ORC-PVPCCSRZWC.768b70` |  |
| 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; `ORC-T7JXWBHVL5.4bf547` |  |
| Lattice c; _printed: c_ | 6.364 Å | 0 | Si2V; _alloy: Si 0.666667, V 0.333333_ | DFT | [2] Luo 2018; _cites Broz 2013_ [doi](https://doi.org/10.1016/j.jssc.2012.12.003) | Table 3, p. 5, row 22; `ORC-W42XXH445F.7915d0` |  |
| 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; `ORC-4JWKLO43JG.cf872f` |  |
| Lattice c; _printed: c_ | 4.731 Å | 0 | Si3V5; _alloy: Si 0.375, V 0.625_ | DFT | [2] Luo 2018; _cites Broz 2013_ [doi](https://doi.org/10.1016/j.jssc.2012.12.003) | Table 3, p. 5, row 16; `ORC-4SWOUJHJLY.4c2011` |  |
| Lattice c; _printed: c_ | 4.76 Å |  | Si3V5; _alloy: Si 0.375, V 0.625_ | model | [2] Luo 2018; _cites Zhang 2008_ [doi](https://doi.org/10.1016/j.calphad.2007.12.005) | Table 3, p. 5, row 15; `ORC-CMUXFEVZTS.21b2df` |  |
| 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; `ORC-OQ5OKHYTLK.f53dd5` |  |
| 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; `ORC-RHGUAAQELX.a1ac92` |  |
| Lattice c | 4.731 Å | 0 | V5Si3; _alloy: V 0.625_ | DFT | [3] Broz 2013 | Table 1, p. 3, row 21; `ORC-XTJRL73TU3.6ec2cd` |  |
| Lattice c | 7.582 Å | 0 | V6Si5; _alloy: V 0.545455_ | DFT | [3] Broz 2013 | Table 1, p. 3, row 43; `ORC-4QCPKRA2EI.7ad35c` |  |
| Lattice c | 4.827 Å | 0 | V6Si5; _alloy: V 0.545455_ | DFT | [3] Broz 2013 | Table 1, p. 3, row 45; `ORC-DEGVX3G5NU.1017df` |  |
| Lattice c | 6.364 Å | 0 | VSi2; _alloy: V 0.333333_ | DFT | [3] Broz 2013 | Table 1, p. 3, row 36; `ORC-7NEZTN4DBG.368791` |  |
| Lattice c | 4.76 Å | 298.15 | V5Si3; _alloy: V 0.625_ | unspecified | [3] Broz 2013; _cites Zhang 2008_ [doi](https://doi.org/10.1016/j.calphad.2007.12.005) | Table 1, p. 3, row 19; `ORC-42G4WDT2LW.09a705` |  |
| Lattice c | 0.47585 not_printed ± 3.000e-5 | 298.15 | V5Si3; _alloy: V 0.625_ | experimental | [3] Broz 2013; _cites Khan 2012_ [doi](https://doi.org/10.1016/j.jssc.2011.12.024) | Table 1, p. 3, row 20; `ORC-I7V4JKSTCI.08bcec` |  |
| Lattice c | 7.501 Å | 298.15 | V6Si5; _alloy: V 0.545455_ | model | [3] Broz 2013; _cites Zhang 2008_ [doi](https://doi.org/10.1016/j.calphad.2007.12.005) | Table 1, p. 3, row 42; `ORC-MNZLFTZKHC.1eb357` |  |
| Lattice c | 4.858 Å | 298.15 | V6Si5; _alloy: V 0.545455_ | model | [3] Broz 2013; _cites Spinat 1970_ [doi](https://doi.org/10.3406/bulmi.1970.6423) | Table 1, p. 3, row 44; `ORC-WNI2INOMN6.a78964` |  |
| Lattice c | 6.374 Å | 298.15 | VSi2; _alloy: V 0.333333_ | unspecified | [3] Broz 2013; _cites Zhang 2008_ [doi](https://doi.org/10.1016/j.calphad.2007.12.005) | Table 1, p. 3, row 35; `ORC-J6AWJTO77K.2c3496` |  |

## Sources

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

1. 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](https://doi.org/10.1016/j.calphad.2007.12.005)
2. 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](https://doi.org/10.1016/j.jmst.2018.01.004)
3. 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](https://doi.org/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). https://doi.org/10.5281/zenodo.23735569
- R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). https://doi.org/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). https://doi.org/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). https://doi.org/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.

```bibtex
@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}
}
```

---

Derived data CC BY 4.0 ([licence](https://creativecommons.org/licenses/by/4.0/)): cite ORCHID ([CITATION.cff](https://data.orchid-project.org/CITATION.cff)) and the original sources. Quotes are short excerpts kept so that each value can be checked; they remain under the publishers' copyright and are not relicensed. Source papers, page images and full text are not redistributed. Field reference: [SCHEMA.md](https://data.orchid-project.org/literature/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt). Found an error? The report link of a value (Markdown: its id, ORC-..., in the Location column) opens a pre-filled GitHub issue, https://github.com/orchid-calphad/orchid-data/issues/new?template=report-value-error.yml&record_id=\<id>, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).