# V–Zr system > V–Zr system: 53 accepted literature values (invariant reaction 46, formation 3, mixing / partial 3, crystal structure 1) and 5 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote. HTML: https://data.orchid-project.org/systems/V-ZR.html · Markdown: https://data.orchid-project.org/systems/V-ZR.md 53 accepted literature values from 3 paper(s) (experimental 23, model 29, unspecified 1); 5 calculated phase diagram(s). 1 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/V-ZR.json) · [CSV](https://data.orchid-project.org/systems/V-ZR.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#V-ZR) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#V-ZR/VZr-05Ser.json) · [phases (6)](https://data.orchid-project.org/phases/pages/V-ZR.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/V-ZR.html) · [Markdown](https://data.orchid-project.org/systems/V-ZR.md) Table: Accepted values by evidence class | Evidence class | Values | |---|---:| | experimental | 23 | | model | 29 | | unspecified | 1 | Table: Accepted values by property group | Property group | Values | |---|---:| | invariant reaction | 46 | | formation | 3 | | mixing / partial | 3 | | crystal structure | 1 | ## 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 | |---|---|---|---| | VZr-05Ser.tdb | C. Servant, J. Phase Equilib. Diffus., 26, 39-49(2005). [doi:10.1361/15477030522464](https://doi.org/10.1361/15477030522464) | `a133e5b6ad447e31172148da46941601f63d9a5e4c5ad459b8b255647e9fdff8` | [viewer](https://orchid-project.org/phase-diagrams/#V-ZR/VZr-05Ser.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/VZr-05Ser.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/VZr-05Ser.json) | | VZr-12Zha.tdb | X.-S. Zhao, G.-H. Yuan, M.-Y. Yao, Q. Yue, J.-Y. Shen, Calphad, 36, 163-68(2012). [doi:10.1016/j.calphad.2011.07.003](https://doi.org/10.1016/j.calphad.2011.07.003) | `d2ae83ad51b4411a7079fabe7d9f6dd39134ae0b02762c8424939cb7a20e1cdf` | [viewer](https://orchid-project.org/phase-diagrams/#V-ZR/VZr-12Zha.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/VZr-12Zha.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/VZr-12Zha.json) | | VZr-16Cui-1.tdb | J. Cui, C. Guo, L. Zou, C. Li, Z. Du, Calphad, 53, 122-29(2016). [doi:10.1016/j.calphad.2016.03.008](https://doi.org/10.1016/j.calphad.2016.03.008) | `89ebe6dfb309eac5bbf30dfd2f9a5b1b912ca00d878de4d3aa6de53da0e65559` | [viewer](https://orchid-project.org/phase-diagrams/#V-ZR/VZr-16Cui-1.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/VZr-16Cui-1.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/VZr-16Cui-1.json) | | VZr-16Cui-2.tdb | J. Cui, C. Guo, L. Zou, C. Li, Z. Du, Calphad, 55, 189-98(2016). [doi:10.1016/j.calphad.2016.09.003](https://doi.org/10.1016/j.calphad.2016.09.003) | `54a76005b6cc78622be85539127225d994465acb56822698ba603d47aa5decdd` | [viewer](https://orchid-project.org/phase-diagrams/#V-ZR/VZr-16Cui-2.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/VZr-16Cui-2.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/VZr-16Cui-2.json) | | VZr-98Kor-LB.tdb | J. Korb, K. Hack, COST 507, Final report round 2, 1998. | `6847bb5a2a797e43b2fa83fe3d3d56a190fcdff8b27883b28901fdde7ee096b0` | [viewer](https://orchid-project.org/phase-diagrams/#V-ZR/VZr-98Kor-LB.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/VZr-98Kor-LB.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/VZr-98Kor-LB.json) | Table: Calculated three-phase invariants (model, mole fraction of the second component) | TDB file | T (K) | Phases at the invariant | |---|---:|---| | VZr-05Ser.tdb | 1586.11 | BCC_A2 (x(Zr) 0.04914) + C15_LAVES (x(Zr) 0.33488) + LIQUID (x(Zr) 0.47769) | | VZr-05Ser.tdb | 1525.2 | C15_LAVES (x(Zr) 0.35226) + LIQUID (x(Zr) 0.5611) + BCC_A2 (x(Zr) 0.83063) | | VZr-05Ser.tdb | 1046.3 | C15_LAVES (x(Zr) 0.343) + BCC_A2 (x(Zr) 0.92182) + HCP_A3 (x(Zr) 0.96895) | | VZr-12Zha.tdb | 1573.17 | BCC_A2 (x(Zr) 0.05707) + C15_LAVES (x(Zr) 0.33956) + LIQUID (x(Zr) 0.47903) | | VZr-12Zha.tdb | 1537.98 | C15_LAVES (x(Zr) 0.34345) + LIQUID (x(Zr) 0.54827) + BCC_A2 (x(Zr) 0.83135) | | VZr-12Zha.tdb | 1050.04 | C15_LAVES (x(Zr) 0.34964) + BCC_A2 (x(Zr) 0.92871) + HCP_A3 (x(Zr) 0.99678) | | VZr-16Cui-1.tdb | 1586.45 | BCC_A2 (x(Zr) 0.07853) + C15_LAVES (x(Zr) 0.3354) + LIQUID (x(Zr) 0.41694) | | VZr-16Cui-1.tdb | 1536.78 | C15_LAVES (x(Zr) 0.34811) + LIQUID (x(Zr) 0.54294) + BCC_A2 (x(Zr) 0.82947) | | VZr-16Cui-1.tdb | 1069.97 | C15_LAVES (x(Zr) 0.35) + BCC_A2 (x(Zr) 0.93258) + HCP_A3 (x(Zr) 0.98) | | VZr-16Cui-2.tdb | 1585.03 | BCC_A2 (x(Zr) 0.075) + C15_LAVES (x(Zr) 0.33525) + LIQUID (x(Zr) 0.41998) | | VZr-16Cui-2.tdb | 1538.04 | C15_LAVES (x(Zr) 0.3553) + LIQUID (x(Zr) 0.54001) + BCC_A2 (x(Zr) 0.83349) | | VZr-16Cui-2.tdb | 1070.16 | C15_LAVES (x(Zr) 0.35002) + BCC_A2 (x(Zr) 0.95074) + HCP_A3 (x(Zr) 0.98761) | | VZr-98Kor-LB.tdb | 1552.75 | BCC_A2 (x(Zr) 0.04598) + V2ZR_C15 (x(Zr) 0.33333) + LIQUID (x(Zr) 0.49421) | | VZr-98Kor-LB.tdb | 1552.75 | BCC_A2 (x(Zr) 0.04598) + V2ZR_C15 (x(Zr) 0.33333) + LIQUID (x(Zr) 0.49414) | | VZr-98Kor-LB.tdb | 1510.2 | V2ZR_C15 (x(Zr) 0.33333) + LIQUID (x(Zr) 0.54752) + BCC_A2 (x(Zr) 0.83928) | | VZr-98Kor-LB.tdb | 1510.2 | V2ZR_C15 (x(Zr) 0.33333) + LIQUID (x(Zr) 0.54765) + BCC_A2 (x(Zr) 0.83935) | | VZr-98Kor-LB.tdb | 1062.92 | V2ZR_C15 (x(Zr) 0.33333) + BCC_A2 (x(Zr) 0.92701) + HCP_A3 (x(Zr) 0.95906) | | VZr-98Kor-LB.tdb | 1062.91 | V2ZR_C15 (x(Zr) 0.33333) + BCC_A2 (x(Zr) 0.92726) + HCP_A3 (x(Zr) 0.95919) | Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/V/V-ZR.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/V/V-ZR.json) · [CALPHAD hull VZr-05Ser](https://data.orchid-project.org/hulls/calphad-sgte/V/V-ZR--VZr-05Ser.json) · [CALPHAD hull VZr-12Zha](https://data.orchid-project.org/hulls/calphad-sgte/V/V-ZR--VZr-12Zha.json) · [CALPHAD hull VZr-16Cui-2](https://data.orchid-project.org/hulls/calphad-sgte/V/V-ZR--VZr-16Cui-2.json) · [CALPHAD hull VZr-98Kor-LB](https://data.orchid-project.org/hulls/calphad-sgte/V/V-ZR--VZr-98Kor-LB.json) ## Invariant reactions (literature) Table: Invariant reactions reported in the literature for the V–Zr system (46) | T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote | |---:|---|---|---|---|---|---| | 2013 | bcc-V + liquid -> V2Zr | bcc-V: Zr 0.02; V2Zr: V 0.666667, Zr 0.333333 | experimental | [1] Zhao 2012; _cites Rostoker 1954_ | Table 4, p. 5, row 4; `ORC-ULSH5LEJOG` | | | 1633 | eutectic: Liquid -> V2Zr + bcc-Zr | V2Zr: V 0.666667, Zr 0.333333 | experimental | [1] Zhao 2012; _cites Rostoker 1954_ | Table 4, p. 5, row 10; `ORC-5RZOOWLSVM` | | | 1597.15 | peritectic: L + bcc_A2 -> C15-Laves | | model | [2] Servant 2005 | Table 4, p. 5, row 2; `ORC-VYYKXSP2A5` | | | 1592.15 | peritectic: L + bcc_A2 -> C15-Laves | | model | [2] Servant 2005 | Table 5, p. 6, row 2; `ORC-IEMCZ5RXWV` | | | 1586.15 | peritectic: L + bcc_A2 -> C15-Laves | | model | [2] Servant 2005 | Table 5, p. 6, row 1; `ORC-2HBO2S2HTO` | | | 1586 | bcc-V + liquid -> V2Zr | bcc-V: Zr 0.049; liquid: Zr 0.478; V2Zr: Zr 0.335 | model | [1] Zhao 2012; _cites Servant 2005_ [doi](https://doi.org/10.1007/s11669-005-0056-x) | Table 4, p. 5, row 6; `ORC-H25DNSPGCO` | | | 1573.15 | peritectic: L + bcc_A2 -> C15-Laves | | experimental | [2] Servant 2005; _cites Smith 1990_ | Table 5, p. 6, row 3; `ORC-5KR7X2KGWY` | | | 1573.15 | peritectic: L + bcc_A2 -> C15-Laves | | experimental | [2] Servant 2005; _cites Williams 1955_ [doi](https://doi.org/10.1007/bf03377505) | Table 5, p. 6, row 5; `ORC-AX4O3CZXXR` | | | 1573.15 | peritectic: L + bcc_A2 -> C15-Laves | | experimental | [2] Servant 2005; _cites Smith 1990_ | Table 4, p. 5, row 3; `ORC-UB4RENO5KA` | | | 1573.15 | peritectic: L + bcc_A2 -> C15-Laves | | experimental | [2] Servant 2005; _cites Williams 1955_ [doi](https://doi.org/10.1007/bf03377505) | Table 4, p. 5, row 4; `ORC-UJ24ZLLW2D` | | | 1573 | bcc-V + liquid -> V2Zr | bcc-V: Zr 0.0571; liquid: Zr 0.479; V2Zr: Zr 0.3396 | model | [1] Zhao 2012 | Table 4, p. 5, row 1; `ORC-E5NB7NV56M` | | | 1573 | bcc-V + liquid -> V2Zr | V2Zr: V 0.666667, Zr 0.333333 | experimental | [1] Zhao 2012; _cites Williams 1955_ | Table 4, p. 5, row 3; `ORC-FAPGRPATPS` | | | 1573 | bcc-V + liquid -> V2Zr | bcc-V: Zr 0.05; liquid: Zr 0.48; V2Zr: Zr 0.333 | experimental | [1] Zhao 2012; _cites Massalski 1990_ | Table 4, p. 5, row 2; `ORC-UXETQF7AOQ` | | | 1572.15 | peritectic: L + bcc_A2 -> C15-Laves | | model | [2] Servant 2005 | Table 4, p. 5, row 1; `ORC-LU5QXXLHS6` | | | 1553 | bcc-V + liquid -> V2Zr | bcc-V: Zr 0.046; liquid: Zr 0.4941; V2Zr: Zr 0.3333 | model | [1] Zhao 2012; _cites COST507 1998_ | Table 4, p. 5, row 5; `ORC-323GQJNG64` | | | 1552.85 | peritectic: L + bcc_A2 -> C15-Laves | | experimental | [2] Servant 2005; _cites Korb 1998_ | Table 4, p. 5, row 5; `ORC-DVMHHQP6CK` | | | 1552.7 | peritectic: bcc-A2 +Liquid -> V2Zr | bcc-A2: Zr 0.046; Liquid: Zr 0.494; V2Zr: Zr 0.333 | model | [3] (ed.) 1998 | Table I, p. 320, row 1; `ORC-GBXFYBDOMX` | | | 1538.15 | eutectic: L -> C15-Laves + bcc_A2 | | experimental | [2] Servant 2005; _cites Smith 1990_ | Table 4, p. 5, row 8; `ORC-4WAM6ZQXP3` | | | 1538.15 | eutectic: L -> C15-Laves + bcc_A2 | | experimental | [2] Servant 2005; _cites Smith 1990_ | Table 5, p. 6, row 8; `ORC-PHW64TLRX4` | | | 1538 | eutectic: Liquid -> V2Zr + bcc-Zr | Liquid: Zr 0.57; V2Zr: Zr 0.35; bcc-Zr: Zr 0.835 | experimental | [1] Zhao 2012; _cites Massalski 1990_ | Table 4, p. 5, row 8; `ORC-374Q2XDWHY` | | | 1538 | eutectic: Liquid -> V2Zr + bcc-Zr | Liquid: Zr 0.5482; V2Zr: Zr 0.3435; bcc-Zr: Zr 0.8313 | model | [1] Zhao 2012 | Table 4, p. 5, row 7; `ORC-LION3OY2TO` | | | 1529.15 | eutectic: L -> C15-Laves + bcc_A2 | | model | [2] Servant 2005 | Table 4, p. 5, row 6; `ORC-CQTT6JG2OL` | | | 1528.15 | eutectic: L -> C15-Laves + bcc_A2 | | model | [2] Servant 2005 | Table 4, p. 5, row 7; `ORC-5IU2EB74ZD` | | | 1526.15 | eutectic: L -> C15-Laves + bcc_A2 | | model | [2] Servant 2005 | Table 5, p. 6, row 7; `ORC-JBJZT4IUSZ` | | | 1525.15 | eutectic: L -> C15-Laves + bcc_A2 | | model | [2] Servant 2005 | Table 5, p. 6, row 6; `ORC-APDX4R3J25` | | | 1525 | eutectic: Liquid -> V2Zr + bcc-Zr | Liquid: Zr 0.561; V2Zr: Zr 0.352; bcc-Zr: Zr 0.831 | model | [1] Zhao 2012; _cites Servant 2005_ [doi](https://doi.org/10.1007/s11669-005-0056-x) | Table 4, p. 5, row 12; `ORC-AWFGBX5Q6P` | | | 1510.35 | eutectic: L -> C15-Laves + bcc_A2 | | experimental | [2] Servant 2005; _cites Korb 1998_ | Table 4, p. 5, row 10; `ORC-ELAXWDYCDW` | | | 1510.2 | eutectic: Liquid -> V2Zr + bcc-A2 | Liquid: Zr 0.548; V2Zr: Zr 0.333; bcc-A2: Zr 0.839 | model | [3] (ed.) 1998 | Table I, p. 320, row 2; `ORC-AAYUZHYTXP` | | | 1510 | eutectic: Liquid -> V2Zr + bcc-Zr | Liquid: Zr 0.5477; V2Zr: Zr 0.3333; bcc-Zr: Zr 0.8393 | model | [1] Zhao 2012; _cites COST507 1998_ | Table 4, p. 5, row 11; `ORC-M3ITH3YOSH` | | | 1503 | eutectic: Liquid -> V2Zr + bcc-Zr | V2Zr: V 0.666667, Zr 0.333333 | experimental | [1] Zhao 2012; _cites Williams 1955_ | Table 4, p. 5, row 9; `ORC-3KQZCHQIIT` | | | 1500.15 | eutectic: L -> C15-Laves + bcc_A2 | | experimental | [2] Servant 2005; _cites Williams 1955_ [doi](https://doi.org/10.1007/bf03377505) | Table 5, p. 6, row 9; `ORC-SH4IUFQRXE` | | | 1500.15 | eutectic: L -> C15-Laves + bcc_A2 | | experimental | [2] Servant 2005; _cites Williams 1955_ [doi](https://doi.org/10.1007/bf03377505) | Table 4, p. 5, row 9; `ORC-VI6O7NOACV` | | | 1063.05 | eutectoid: bcc_A2 -> C15-Laves + cph_A3 | | experimental | [2] Servant 2005; _cites Korb 1998_ | Table 4, p. 5, row 15; `ORC-HVA4YK2NGG` | | | 1063 | bcc-Zr -> V2Zr + hcp-Zr | bcc-Zr: Zr 0.9273; V2Zr: Zr 0.3333; hcp-Zr: Zr 0.9592 | model | [1] Zhao 2012; _cites COST507 1998_ | Table 4, p. 5, row 16; `ORC-SHBNWBXMYS` | | | 1062.9 | eutectoid: bcc-A2 -> V2Zr + hcp-A3 | bcc-A2: Zr 0.927; V2Zr: Zr 0.333; hcp-A3: Zr 0.959 | model | [3] (ed.) 1998 | Table I, p. 320, row 3; `ORC-KAQRTQ2ZP6` | | | 1053.15 | eutectoid: bcc_A2 -> C15-Laves + cph_A3 | | experimental | [2] Servant 2005; _cites Williams 1955_ [doi](https://doi.org/10.1007/bf03377505) | Table 5, p. 6, row 13; `ORC-AFVBECTPQ7` | | | 1053.15 | eutectoid: bcc_A2 -> C15-Laves + cph_A3 | | experimental | [2] Servant 2005; _cites Williams 1955_ [doi](https://doi.org/10.1007/bf03377505) | Table 4, p. 5, row 14; `ORC-EKQ2ELDZ6E` | | | 1050.15 | eutectoid: bcc_A2 -> C15-Laves + cph_A3 | | experimental | [2] Servant 2005; _cites Smith 1990_ | Table 4, p. 5, row 13; `ORC-QPQOWBZQUS` | | | 1050 | bcc-Zr -> V2Zr + hcp-Zr | bcc-Zr: Zr 0.914; V2Zr: Zr 0.345; hcp-Zr: Zr 0.99 | experimental | [1] Zhao 2012; _cites Massalski 1990_ | Table 4, p. 5, row 14; `ORC-FDSTJ5UFVJ` | | | 1050 | bcc-Zr -> V2Zr + hcp-Zr | V2Zr: V 0.666667, Zr 0.333333 | experimental | [1] Zhao 2012; _cites Williams 1955_ | Table 4, p. 5, row 15; `ORC-HJM7PK3IFD` | | | 1050 | bcc-Zr -> V2Zr + hcp-Zr | bcc-Zr: Zr 0.9287; V2Zr: Zr 0.3496; hcp-Zr: Zr 0.9968 | model | [1] Zhao 2012 | Table 4, p. 5, row 13; `ORC-TGFQRAQIDV` | | | 1046.15 | eutectoid: bcc_A2 -> C15-Laves + cph_A3 | | model | [2] Servant 2005 | Table 5, p. 6, row 10; `ORC-UBP55LJ3OI` | | | 1046 | bcc-Zr -> V2Zr + hcp-Zr | bcc-Zr: Zr 0.922; V2Zr: Zr 0.343; hcp-Zr: Zr 0.969 | model | [1] Zhao 2012; _cites Servant 2005_ [doi](https://doi.org/10.1007/s11669-005-0056-x) | Table 4, p. 5, row 17; `ORC-YBULJUR7CU` | | | 1044.15 | eutectoid: bcc_A2 -> C15-Laves + cph_A3 | | experimental | [2] Servant 2005; _cites Smith 1990_ | Table 5, p. 6, row 12; `ORC-DIY2TW4MCV` | | | 1044.15 | eutectoid: bcc_A2 -> C15-Laves + cph_A3 | | model | [2] Servant 2005 | Table 5, p. 6, row 11; `ORC-IKTPUQ45QO` | | | 1043.15 | eutectoid: bcc_A2 -> C15-Laves + cph_A3 | | model | [2] Servant 2005 | Table 4, p. 5, row 11; `ORC-PCK2TEOFRW.9083bb` | | ## 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, V–Zr system (3) | Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote | |---|---|---:|---:|---|---:|---:|---|---|---| | Laves | | -5.181 kJ/mol (basis unstated) | 298.15 | model | | | [2] Servant 2005 | Table 1, p. 2, row 10; `ORC-ZWYT4YPA26.0b964f` | | | Laves | | -4.786 kJ/mol (basis unstated) | 298.15 | model | | | [2] Servant 2005 | Table 1, p. 2, row 8; `ORC-OQVJV6RD5B.791636` | | | Laves phase | | -4.681 kJ/mol (basis unstated) | 298.15 | model | | | [2] Servant 2005 | Table 1, p. 2, row 9; `ORC-NMB7WZBG6U.931a31` | | ## Other properties ### Mixing / partial (3) Table: Mixing / partial, V–Zr system | Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote | |---|---:|---:|---|---|---|---|---| | Enthalpy of mixing; _printed: ΔHmelting_ | -4.204 kJ/mol (basis unstated) | 298.15 | liquid; _alloy: V 0.5, Zr 0.5_ | model | [2] Servant 2005 | Table 1, p. 2, row 9; `ORC-NMB7WZBG6U.fb2c91` | | | Enthalpy of mixing; _printed: ΔHmelting_ | -4.35 kJ/mol (basis unstated) | 298.15 | liquid; _alloy: V 0.5, Zr 0.5_ | model | [2] Servant 2005 | Table 1, p. 2, row 8; `ORC-OQVJV6RD5B.d43fab` | | | Enthalpy of mixing; _printed: ΔHmelting_ | -3.92 kJ/mol (basis unstated) | 298.15 | liquid; _alloy: V 0.5, Zr 0.5_ | model | [2] Servant 2005 | Table 1, p. 2, row 10; `ORC-ZWYT4YPA26.bb4d27` | | ### Crystal structure (1) Table: Crystal structure, V–Zr system | Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote | |---|---:|---:|---|---|---|---|---| | Lattice a | 7.45 Å | 298.15 | V2Zr; _alloy: Zr 0.333333_ | unspecified | [1] Zhao 2012; _cites Finkel 1980_ | Table 1, p. 3, row 3; `ORC-DWHSTV4WBD` | | ## Sources Reporting papers the values were read from (a value cited from another work names that work in its row). 1. Xu-Shan Zhao, Gai-Huan Yuan, Mei-Yi Yao, Qiang Yue, Jian-Yun Shen, First-principles calculations and thermodynamic modeling of the V–Zr system, Calphad 36, 163-168 (2012). [doi:10.1016/j.calphad.2011.07.003](https://doi.org/10.1016/j.calphad.2011.07.003) 2. C. Servant, Thermodynamic Assessments of the Phase Diagrams of the Hafnium-Vanadium and Vanadium-Zirconium Systems, Journal of Phase Equilibria & Diffusion 26, 39-49 (2005). [doi:10.1361/15477030522464](https://doi.org/10.1361/15477030522464) 3. I. Ansara, A. T. Dinsdale, M. H. Rand (eds.), COST 507: Thermochemical database for light metal alloys, Volume 2, EUR 18499 EN, Office for Official Publications of the European Communities, Luxembourg (1998), ISBN 92-828-3902-8. ## 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=\, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).