# Cr–Hf system

> Cr–Hf system: 84 accepted literature values (crystal structure 84) and 2 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/CR-HF.html · Markdown: https://data.orchid-project.org/systems/CR-HF.md

84 accepted literature values from 1 paper(s) (experimental 8, DFT 60, unspecified 16); 2 calculated phase diagram(s).

Data: [JSON](https://data.orchid-project.org/literature/systems/CR-HF.json) · [CSV](https://data.orchid-project.org/systems/CR-HF.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#CR-HF) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#CR-HF/CrHf-10Pav-3SL.json) · [phases (6)](https://data.orchid-project.org/phases/pages/CR-HF.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/CR-HF.html) · [Markdown](https://data.orchid-project.org/systems/CR-HF.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 8 |
| DFT | 60 |
| unspecified | 16 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| crystal structure | 84 |

## 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 |
|---|---|---|---|
| CrHf-10Pav-3SL.tdb | J. Pavlu, J. Vrestal, M. Sob, Calphad, 34, 215-21(2010). [doi:10.1016/j.calphad.2010.03.003](https://doi.org/10.1016/j.calphad.2010.03.003) | `2f6ed12b7f156a6412f0b6fb9eeab10f74d000cbdb207ca6f56b3d8484771f8d` | [viewer](https://orchid-project.org/phase-diagrams/#CR-HF/CrHf-10Pav-3SL.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CrHf-10Pav-3SL.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CrHf-10Pav-3SL.json) |
| CrHf-10Pav.tdb | J. Pavlu, J. Vrestal, M. Sob, Calphad, 34, 215-21(2010). [doi:10.1016/j.calphad.2010.03.003](https://doi.org/10.1016/j.calphad.2010.03.003) | `8556f8a49f653998ed0dcdc4a70df9a760052f6e842ee877dd3396bb913bb607` | [viewer](https://orchid-project.org/phase-diagrams/#CR-HF/CrHf-10Pav.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CrHf-10Pav.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CrHf-10Pav.json) |

Table: Calculated three-phase invariants (model, mole fraction of the second component)

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| CrHf-10Pav-3SL.tdb | 1939.01 | BCC_A2 (x(Hf) 0.0189) + LIQUID (x(Hf) 0.14942) + C14_LAVES (x(Hf) 0.33326) |
| CrHf-10Pav-3SL.tdb | 1774.22 | C14_LAVES (x(Hf) 0.35631) + LIQUID (x(Hf) 0.63904) + BCC_A2 (x(Hf) 0.85644) |
| CrHf-10Pav-3SL.tdb | 1633.03 | C14_LAVES (x(Hf) 0.35397) + BCC_A2 (x(Hf) 0.88926) + HCP_A3 (x(Hf) 0.97669) |
| CrHf-10Pav-3SL.tdb | 1595.6 | C14_LAVES (x(Hf) 0.35263) + C15_LAVES (x(Hf) 0.35387) + HCP_A3 (x(Hf) 0.97844) |
| CrHf-10Pav-3SL.tdb | 1580.01 | BCC_A2 (x(Hf) 0.00497) + C15_LAVES (x(Hf) 0.3332) + C14_LAVES (x(Hf) 0.33333) |
| CrHf-10Pav.tdb | 1938.73 | BCC_A2 (x(Hf) 0.01892) + LIQUID (x(Hf) 0.14959) + C14_LAVES (x(Hf) 0.33343) |
| CrHf-10Pav.tdb | 1775.25 | C14_LAVES (x(Hf) 0.35856) + LIQUID (x(Hf) 0.63934) + BCC_A2 (x(Hf) 0.85653) |
| CrHf-10Pav.tdb | 1633.22 | C14_LAVES (x(Hf) 0.35536) + BCC_A2 (x(Hf) 0.88934) + HCP_A3 (x(Hf) 0.9767) |
| CrHf-10Pav.tdb | 1590.8 | C14_LAVES (x(Hf) 0.35355) + C15_LAVES (x(Hf) 0.35367) + HCP_A3 (x(Hf) 0.97868) |
| CrHf-10Pav.tdb | 1586.64 | BCC_A2 (x(Hf) 0.00513) + C15_LAVES (x(Hf) 0.3332) + C14_LAVES (x(Hf) 0.33335) |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/CR/CR-HF.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/CR/CR-HF.json) · [CALPHAD hull CrHf-10Pav-3SL](https://data.orchid-project.org/hulls/calphad-sgte/CR/CR-HF--CrHf-10Pav-3SL.json)

## Other properties

### Crystal structure (84)

Table: Crystal structure, Cr–Hf system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Lattice a | 5.0314 Å | 0 | Cr2Hf (C14); _alloy: Hf 0.333333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 32; `ORC-DAY45LDIMT.2a6e20` |  |
| Lattice a | 5.0314 Å |  | Cr2Hf (C14); _alloy: Hf 0.333333_ | unspecified | [1] Pavlů 2010 | Table 2, p. 3, row 3; `ORC-M2IPBZXRMS.cb9e27` |  |
| Lattice a | 7.0655 Å | 0 | Cr2Hf (C15); _alloy: Hf 0.333333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 33; `ORC-HDLCHW3JT3.218d5c` |  |
| Lattice a | 5.009 Å |  | Cr2Hf (C36); _alloy: Hf 0.333333_ | unspecified | [1] Pavlů 2010 | Table 2, p. 3, row 10; `ORC-JZRMRDQEUX.3c804c` |  |
| Lattice a | 5.009 Å | 0 | Cr2Hf (C36); _alloy: Hf 0.333333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 41; `ORC-Q7AHMRRW7I.4c8de1` |  |
| Lattice a | 6.0211 Å | 0 | Cr2Hf10 (C14); _alloy: Hf 0.833333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 37; `ORC-OPXTL7QJF2.24a4b2` |  |
| Lattice a | 6.0211 Å |  | Cr2Hf10 (C14); _alloy: Hf 0.833333_ | unspecified | [1] Pavlů 2010 | Table 2, p. 3, row 6; `ORC-P467VQSN4O.88693b` |  |
| Lattice a | 6.0138 Å | 0 | Cr2Hf10 (C36); _alloy: Hf 0.833333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 44; `ORC-RKDOLLV3MA.32cb24` |  |
| Lattice a | 6.0138 Å |  | Cr2Hf10 (C36); _alloy: Hf 0.833333_ | unspecified | [1] Pavlů 2010 | Table 2, p. 3, row 13; `ORC-TXXSFY7GQJ.00272c` |  |
| Lattice a | 6.2668 Å | 0 | Cr6Hf6 (C14); _alloy: Hf 0.5_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 34; `ORC-GEXHGXSZVR.3a9e1c` |  |
| Lattice a | 6.2668 Å |  | Cr6Hf6 (C14); _alloy: Hf 0.5_ | unspecified | [1] Pavlů 2010 | Table 2, p. 3, row 4; `ORC-STA2Y23TOP.2e8e52` |  |
| Lattice a | 6.2594 Å |  | Cr6Hf6 (C36); _alloy: Hf 0.5_ | unspecified | [1] Pavlů 2010 | Table 2, p. 3, row 11; `ORC-EG7DM5JE33.030112` |  |
| Lattice a | 6.2594 Å | 0 | Cr6Hf6 (C36); _alloy: Hf 0.5_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 42; `ORC-X2ETHLNQZX.2b6c7e` |  |
| Lattice a | 5.5285 Å |  | CrHf2 (C14); _alloy: Hf 0.666667_ | unspecified | [1] Pavlů 2010 | Table 2, p. 3, row 5; `ORC-4TFFGYVLT4.ff9e4b` |  |
| Lattice a | 5.5285 Å | 0 | CrHf2 (C14); _alloy: Hf 0.666667_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 35; `ORC-ANSSCCCMAT.a26d41` |  |
| Lattice a | 7.7745 Å | 0 | CrHf2 (C15); _alloy: Hf 0.666667_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 36; `ORC-NK5B42NCPL.2646f0` |  |
| Lattice a | 5.6155 Å | 0 | CrHf2 (C36); _alloy: Hf 0.666667_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 43; `ORC-GODBWQPOKC.62d1c1` |  |
| Lattice a | 5.6155 Å |  | CrHf2 (C36); _alloy: Hf 0.666667_ | unspecified | [1] Pavlů 2010 | Table 2, p. 3, row 12; `ORC-PWQ5D3HPII.43cc08` |  |
| Lattice a | 5.056 Å | 298.15 | Cr2Hf (C14); _alloy: Hf 0.333333_ | experimental | [1] Pavlů 2010; _cites Villars 1991_ | Table 2, p. 3, row 1; `ORC-FZSSTV4WJE.687785` |  |
| Lattice a | 7.14 Å | 298.15 | Cr2Hf (C15); _alloy: Hf 0.333333_ | experimental | [1] Pavlů 2010; _cites Villars 1991_ | Table 2, p. 3, row 29; `ORC-TAVZ7W2OYK.0a7cc9` |  |
| Lattice a | 5.064 Å | 298.15 | Cr2Hf (C36); _alloy: Hf 0.333333_ | experimental | [1] Pavlů 2010; _cites Villars 1991_ | Table 2, p. 3, row 8; `ORC-3S5OLCUOII.25381e` |  |
| Lattice c | 8.0561 Å | 0 | Cr2Hf (C14); _alloy: Hf 0.333333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 32; `ORC-DAY45LDIMT.c283f6` |  |
| Lattice c | 8.0561 Å |  | Cr2Hf (C14); _alloy: Hf 0.333333_ | unspecified | [1] Pavlů 2010 | Table 2, p. 3, row 3; `ORC-M2IPBZXRMS.b47752` |  |
| Lattice c | 16.2427 Å |  | Cr2Hf (C36); _alloy: Hf 0.333333_ | unspecified | [1] Pavlů 2010 | Table 2, p. 3, row 10; `ORC-JZRMRDQEUX.25707b` |  |
| Lattice c | 16.2427 Å | 0 | Cr2Hf (C36); _alloy: Hf 0.333333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 41; `ORC-Q7AHMRRW7I.c84b39` |  |
| Lattice c | 7.8344 Å | 0 | Cr2Hf10 (C14); _alloy: Hf 0.833333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 37; `ORC-OPXTL7QJF2.61c754` |  |
| Lattice c | 7.8344 Å |  | Cr2Hf10 (C14); _alloy: Hf 0.833333_ | unspecified | [1] Pavlů 2010 | Table 2, p. 3, row 6; `ORC-P467VQSN4O.4ff487` |  |
| Lattice c | 15.6956 Å | 0 | Cr2Hf10 (C36); _alloy: Hf 0.833333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 44; `ORC-RKDOLLV3MA.6cb84e` |  |
| Lattice c | 15.6956 Å |  | Cr2Hf10 (C36); _alloy: Hf 0.833333_ | unspecified | [1] Pavlů 2010 | Table 2, p. 3, row 13; `ORC-TXXSFY7GQJ.9d2eb0` |  |
| Lattice c | 6.3446 Å | 0 | Cr6Hf6 (C14); _alloy: Hf 0.5_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 34; `ORC-GEXHGXSZVR.440c27` |  |
| Lattice c | 6.3446 Å |  | Cr6Hf6 (C14); _alloy: Hf 0.5_ | unspecified | [1] Pavlů 2010 | Table 2, p. 3, row 4; `ORC-STA2Y23TOP.b47e89` |  |
| Lattice c | 12.7576 Å |  | Cr6Hf6 (C36); _alloy: Hf 0.5_ | unspecified | [1] Pavlů 2010 | Table 2, p. 3, row 11; `ORC-EG7DM5JE33.23d5cc` |  |
| Lattice c | 12.7576 Å | 0 | Cr6Hf6 (C36); _alloy: Hf 0.5_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 42; `ORC-X2ETHLNQZX.2babd8` |  |
| Lattice c | 8.6558 Å |  | CrHf2 (C14); _alloy: Hf 0.666667_ | unspecified | [1] Pavlů 2010 | Table 2, p. 3, row 5; `ORC-4TFFGYVLT4.fe2d03` |  |
| Lattice c | 8.6558 Å | 0 | CrHf2 (C14); _alloy: Hf 0.666667_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 35; `ORC-ANSSCCCMAT.023cf0` |  |
| Lattice c | 17.7111 Å | 0 | CrHf2 (C36); _alloy: Hf 0.666667_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 43; `ORC-GODBWQPOKC.2dc416` |  |
| Lattice c | 17.7111 Å |  | CrHf2 (C36); _alloy: Hf 0.666667_ | unspecified | [1] Pavlů 2010 | Table 2, p. 3, row 12; `ORC-PWQ5D3HPII.3508a0` |  |
| Lattice c | 8.21 Å | 298.15 | Cr2Hf (C14); _alloy: Hf 0.333333_ | experimental | [1] Pavlů 2010; _cites Villars 1991_ | Table 2, p. 3, row 1; `ORC-FZSSTV4WJE.63aae9` |  |
| Lattice c | 16.47 Å | 298.15 | Cr2Hf (C36); _alloy: Hf 0.333333_ | experimental | [1] Pavlů 2010; _cites Villars 1991_ | Table 2, p. 3, row 8; `ORC-3S5OLCUOII.833c5e` |  |
| lattice 4e z | 0.0945 not_printed | 0 | Cr2Hf (C36); _alloy: Hf 0.333333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 41; `ORC-Q7AHMRRW7I.78da7f` |  |
| lattice 4e z | 0.0895 not_printed | 0 | Cr2Hf10 (C36); _alloy: Hf 0.833333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 44; `ORC-RKDOLLV3MA.12335c` |  |
| lattice 4e z | 0.0638 not_printed | 0 | Cr6Hf6 (C36); _alloy: Hf 0.5_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 42; `ORC-X2ETHLNQZX.a4563a` |  |
| lattice 4e z | 0.06 not_printed | 0 | CrHf2 (C36); _alloy: Hf 0.666667_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 43; `ORC-GODBWQPOKC.1ffa71` |  |
| lattice 4f z | 0.0604 1 | 0 | Cr2Hf (C14); _alloy: Hf 0.333333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 32; `ORC-DAY45LDIMT.d10c8d` |  |
| lattice 4f z | 0.0702 not_printed | 0 | Cr2Hf10 (C14); _alloy: Hf 0.833333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 37; `ORC-OPXTL7QJF2.b1f70e` |  |
| lattice 4f z | 0.1223 not_printed | 0 | Cr6Hf6 (C14); _alloy: Hf 0.5_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 34; `ORC-GEXHGXSZVR.d1811e` |  |
| lattice 4f z | 0.0627 not_printed | 0 | CrHf2 (C14); _alloy: Hf 0.666667_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 35; `ORC-ANSSCCCMAT.85da9f` |  |
| lattice 4f z 1 | 0.8439 not_printed | 0 | Cr2Hf (C36); _alloy: Hf 0.333333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 41; `ORC-Q7AHMRRW7I.f0f24b` |  |
| lattice 4f z 1 | 0.8394 not_printed | 0 | Cr2Hf10 (C36); _alloy: Hf 0.833333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 44; `ORC-RKDOLLV3MA.620f69` |  |
| lattice 4f z 1 | 0.814 not_printed | 0 | Cr6Hf6 (C36); _alloy: Hf 0.5_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 42; `ORC-X2ETHLNQZX.a62aa2` |  |
| lattice 4f z 1 | 0.8585 not_printed | 0 | CrHf2 (C36); _alloy: Hf 0.666667_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 43; `ORC-GODBWQPOKC.5ee23c` |  |
| lattice 4f z 2 | 0.1234 not_printed | 0 | Cr2Hf (C36); _alloy: Hf 0.333333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 41; `ORC-Q7AHMRRW7I.bac897` |  |
| lattice 4f z 2 | 0.125 not_printed | 0 | Cr2Hf10 (C36); _alloy: Hf 0.833333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 44; `ORC-RKDOLLV3MA.a89d11` |  |
| lattice 4f z 2 | 0.1323 not_printed | 0 | Cr6Hf6 (C36); _alloy: Hf 0.5_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 42; `ORC-X2ETHLNQZX.7d21ae` |  |
| lattice 4f z 2 | 0.1266 not_printed | 0 | CrHf2 (C36); _alloy: Hf 0.666667_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 43; `ORC-GODBWQPOKC.d8f8f4` |  |
| lattice 6h x | 0.8315 not_printed | 0 | Cr2Hf (C14); _alloy: Hf 0.333333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 32; `ORC-DAY45LDIMT.e2555d` |  |
| lattice 6h x | 0.1647 not_printed | 0 | Cr2Hf (C36); _alloy: Hf 0.333333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 41; `ORC-Q7AHMRRW7I.0ecf84` |  |
| lattice 6h x | 0.8325 not_printed | 0 | Cr2Hf10 (C14); _alloy: Hf 0.833333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 37; `ORC-OPXTL7QJF2.73d1b9` |  |
| lattice 6h x | 0.1652 not_printed | 0 | Cr2Hf10 (C36); _alloy: Hf 0.833333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 44; `ORC-RKDOLLV3MA.ec82f5` |  |
| lattice 6h x | 0.8256 not_printed | 0 | Cr6Hf6 (C14); _alloy: Hf 0.5_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 34; `ORC-GEXHGXSZVR.823256` |  |
| lattice 6h x | 0.1568 not_printed | 0 | Cr6Hf6 (C36); _alloy: Hf 0.5_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 42; `ORC-X2ETHLNQZX.3898bc` |  |
| lattice 6h x | 0.8253 not_printed | 0 | CrHf2 (C14); _alloy: Hf 0.666667_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 35; `ORC-ANSSCCCMAT.f9889a` |  |
| lattice 6h x | 0.1603 not_printed | 0 | CrHf2 (C36); _alloy: Hf 0.666667_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 43; `ORC-GODBWQPOKC.b21db6` |  |
| lattice 6h y | 0.6631 not_printed | 0 | Cr2Hf (C14); _alloy: Hf 0.333333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 32; `ORC-DAY45LDIMT.6a3c99` |  |
| lattice 6h y | 0.3294 not_printed | 0 | Cr2Hf (C36); _alloy: Hf 0.333333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 41; `ORC-Q7AHMRRW7I.4c5869` |  |
| lattice 6h y | 0.665 not_printed | 0 | Cr2Hf10 (C14); _alloy: Hf 0.833333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 37; `ORC-OPXTL7QJF2.e3c662` |  |
| lattice 6h y | 0.3305 not_printed | 0 | Cr2Hf10 (C36); _alloy: Hf 0.833333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 44; `ORC-RKDOLLV3MA.2e77cb` |  |
| lattice 6h y | 0.6513 not_printed | 0 | Cr6Hf6 (C14); _alloy: Hf 0.5_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 34; `ORC-GEXHGXSZVR.766d88` |  |
| lattice 6h y | 0.3137 not_printed | 0 | Cr6Hf6 (C36); _alloy: Hf 0.5_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 42; `ORC-X2ETHLNQZX.d8b03e` |  |
| lattice 6h y | 0.6505 not_printed | 0 | CrHf2 (C14); _alloy: Hf 0.666667_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 35; `ORC-ANSSCCCMAT.a116d7` |  |
| lattice 6h y | 0.3207 not_printed | 0 | CrHf2 (C36); _alloy: Hf 0.666667_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 43; `ORC-GODBWQPOKC.536eb1` |  |
| lattice v atom | 1.47179 10^7 pm^3 | 0 | Cr2Hf (C14); _alloy: Hf 0.333333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 32; `ORC-DAY45LDIMT.30dcfa` |  |
| lattice v atom | 1.46966 10^7 pm^3 | 0 | Cr2Hf (C15); _alloy: Hf 0.333333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 33; `ORC-HDLCHW3JT3.72d52c` |  |
| lattice v atom | 1.47056 10^7 pm^3 | 0 | Cr2Hf (C36); _alloy: Hf 0.333333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 41; `ORC-Q7AHMRRW7I.823107` |  |
| lattice v atom | 2.04974 10^7 pm^3 | 0 | Cr2Hf10 (C14); _alloy: Hf 0.833333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 37; `ORC-OPXTL7QJF2.88fedc` |  |
| lattice v atom | 2.04832 10^7 pm^3 | 0 | Cr2Hf10 (C36); _alloy: Hf 0.833333_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 44; `ORC-RKDOLLV3MA.4918f5` |  |
| lattice v atom | 1.79822 10^7 pm^3 | 0 | Cr6Hf6 (C14); _alloy: Hf 0.5_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 34; `ORC-GEXHGXSZVR.38567f` |  |
| lattice v atom | 1.80365 10^7 pm^3 | 0 | Cr6Hf6 (C36); _alloy: Hf 0.5_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 42; `ORC-X2ETHLNQZX.dfc94d` |  |
| lattice v atom | 1.9093 10^7 pm^3 | 0 | CrHf2 (C14); _alloy: Hf 0.666667_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 35; `ORC-ANSSCCCMAT.d024ec` |  |
| lattice v atom | 1.95797 10^7 pm^3 | 0 | CrHf2 (C15); _alloy: Hf 0.666667_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 36; `ORC-NK5B42NCPL.759a04` |  |
| lattice v atom | 2.01529 10^7 pm^3 | 0 | CrHf2 (C36); _alloy: Hf 0.666667_ | DFT | [1] Pavlů 2010 | Table 2, p. 3, row 43; `ORC-GODBWQPOKC.633650` |  |
| lattice v atom | 1.51463 10^7 pm^3 | 298.15 | Cr2Hf (C14); _alloy: Hf 0.333333_ | experimental | [1] Pavlů 2010; _cites Villars 1991_ | Table 2, p. 3, row 1; `ORC-FZSSTV4WJE.a28f55` |  |
| lattice v atom | 1.51664 10^7 pm^3 | 298.15 | Cr2Hf (C15); _alloy: Hf 0.333333_ | experimental | [1] Pavlů 2010; _cites Villars 1991_ | Table 2, p. 3, row 29; `ORC-TAVZ7W2OYK.3175b1` |  |
| lattice v atom | 1.52405 10^7 pm^3 | 298.15 | Cr2Hf (C36); _alloy: Hf 0.333333_ | experimental | [1] Pavlů 2010; _cites Villars 1991_ | Table 2, p. 3, row 8; `ORC-3S5OLCUOII.f0c90a` |  |

## Sources

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

1. J. Pavlů, J. Vřešt’ál, M. Šob, Thermodynamic modeling of Laves phases in the Cr–Hf and Cr–Ti systems: Reassessment using first-principles results, Calphad 34, 215-221 (2010). [doi:10.1016/j.calphad.2010.03.003](https://doi.org/10.1016/j.calphad.2010.03.003)

## 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/).