# Ni–Pr system

> Ni–Pr system: 141 accepted literature values (invariant reaction 107, phase transition 34) and 2 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/NI-PR.html · Markdown: https://data.orchid-project.org/systems/NI-PR.md

141 accepted literature values from 3 paper(s) (experimental 91, model 38, unspecified 12); 2 calculated phase diagram(s). 30 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/NI-PR.json) · [CSV](https://data.orchid-project.org/systems/NI-PR.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#NI-PR) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#NI-PR/NiPr-05Hua.json) · [phases (12)](https://data.orchid-project.org/phases/pages/NI-PR.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/NI-PR.html) · [Markdown](https://data.orchid-project.org/systems/NI-PR.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 91 |
| model | 38 |
| unspecified | 12 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 107 |
| phase transition | 34 |

## 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 |
|---|---|---|---|
| NiPr-05Hua.tdb | M. Huang, T.A. Lograsso, J. Alloys Compd., 395, 75-79(2005). [doi:10.1016/j.jallcom.2004.11.039](https://doi.org/10.1016/j.jallcom.2004.11.039) | `cc5105330c14229b6062efcfb029974533cd719dd63110a8b6de7717a43d9345` | [viewer](https://orchid-project.org/phase-diagrams/#NI-PR/NiPr-05Hua.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NiPr-05Hua.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NiPr-05Hua.json) |
| NiPr-15Rah.tdb | Z. Rahou, K. Mahdouk, D. Moustain, S. Otmani, S. Kardellass, A. Iddaoudi, N. Selhaoui, J. Alloys Compd., 620, 204-9(2015). [doi:10.1016/j.jallcom.2014.09.116](https://doi.org/10.1016/j.jallcom.2014.09.116) | `a55bd7afc9e01e38c7a8dee2a3a9e424193990461edbe50a25c25e54f84e0f53` | [viewer](https://orchid-project.org/phase-diagrams/#NI-PR/NiPr-15Rah.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NiPr-15Rah.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NiPr-15Rah.json) |

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

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| NiPr-05Hua.tdb | 1552.84 | FCC_A1 (x(Pr) 3.000e-5) + LIQUID (x(Pr) 0.08428) + NI5PR_D2D (x(Pr) 0.16667) |
| NiPr-05Hua.tdb | 1552.84 | FCC_A1 (x(Pr) 3.000e-5) + LIQUID (x(Pr) 0.08426) + NI5PR_D2D (x(Pr) 0.16667) |
| NiPr-05Hua.tdb | 1435.38 | NI5PR_D2D (x(Pr) 0.16667) + NI7PR2 (x(Pr) 0.22222) + LIQUID (x(Pr) 0.28668) |
| NiPr-05Hua.tdb | 1435.38 | NI5PR_D2D (x(Pr) 0.16667) + NI7PR2 (x(Pr) 0.22222) + LIQUID (x(Pr) 0.28665) |
| NiPr-05Hua.tdb | 1302.27 | NI7PR2 (x(Pr) 0.22222) + NI3PR (x(Pr) 0.25) + LIQUID (x(Pr) 0.33371) |
| NiPr-05Hua.tdb | 1302.27 | NI7PR2 (x(Pr) 0.22222) + NI3PR (x(Pr) 0.25) + LIQUID (x(Pr) 0.33363) |
| NiPr-05Hua.tdb | 1302.27 | NI7PR2 (x(Pr) 0.22222) + NI3PR (x(Pr) 0.25) + LIQUID (x(Pr) 0.33373) |
| NiPr-05Hua.tdb | 1203.99 | NI7PR2 (x(Pr) 0.22222) + BCC_A2 (x(Pr) 1) + LIQUID (x(Pr) 1) |
| NiPr-05Hua.tdb | 1193.69 | NI3PR (x(Pr) 0.25) + NI2PR_C15 (x(Pr) 0.33333) + LIQUID (x(Pr) 0.36555) |
| NiPr-05Hua.tdb | 1193.68 | NI3PR (x(Pr) 0.25) + NI2PR_C15 (x(Pr) 0.33333) + LIQUID (x(Pr) 0.36581) |
| NiPr-05Hua.tdb | 1193.68 | NI3PR (x(Pr) 0.25) + NI2PR_C15 (x(Pr) 0.33333) + LIQUID (x(Pr) 0.36586) |
| NiPr-05Hua.tdb | 1053.04 | LIQUID (x(Pr) 0.89) + BCC_A2 (x(Pr) 0.99503) + DHCP (x(Pr) 0.99997) |
| NiPr-05Hua.tdb | 1053.04 | LIQUID (x(Pr) 0.89001) + BCC_A2 (x(Pr) 0.99503) + DHCP (x(Pr) 0.99997) |
| NiPr-05Hua.tdb | 1006.22 | NI2PR_C15 (x(Pr) 0.33333) + LIQUID (x(Pr) 0.44287) + NIPR_B33 (x(Pr) 0.5) |
| NiPr-05Hua.tdb | 1006.22 | NI2PR_C15 (x(Pr) 0.33333) + LIQUID (x(Pr) 0.44286) + NIPR_B33 (x(Pr) 0.5) |
| NiPr-05Hua.tdb | 1006.22 | NI2PR_C15 (x(Pr) 0.33333) + LIQUID (x(Pr) 0.44294) + NIPR_B33 (x(Pr) 0.5) |
| NiPr-05Hua.tdb | 832.2 | NI3PR7_D102 (x(Pr) 0.7) + LIQUID (x(Pr) 0.72806) + NIPR3_D011 (x(Pr) 0.75) |
| NiPr-05Hua.tdb | 832.2 | NI3PR7_D102 (x(Pr) 0.7) + LIQUID (x(Pr) 0.72805) + NIPR3_D011 (x(Pr) 0.75) |
| NiPr-05Hua.tdb | 832.19 | NI3PR7_D102 (x(Pr) 0.7) + LIQUID (x(Pr) 0.72838) + NIPR3_D011 (x(Pr) 0.75) |
| NiPr-05Hua.tdb | 832.19 | NI3PR7_D102 (x(Pr) 0.7) + LIQUID (x(Pr) 0.72864) + NIPR3_D011 (x(Pr) 0.75) |
| NiPr-05Hua.tdb | 826.88 | NIPR3_D011 (x(Pr) 0.75) + LIQUID (x(Pr) 0.78854) + DHCP (x(Pr) 0.99999) |
| NiPr-05Hua.tdb | 826.88 | NIPR3_D011 (x(Pr) 0.75) + LIQUID (x(Pr) 0.78846) + DHCP (x(Pr) 0.99999) |
| NiPr-05Hua.tdb | 823.97 | NIPR_B33 (x(Pr) 0.5) + LIQUID (x(Pr) 0.65934) + NI3PR7_D102 (x(Pr) 0.7) |
| NiPr-15Rah.tdb | 1553.24 | FCC_A1 (x(Pr) 0) + LIQUID (x(Pr) 0.08234) + NI5PR_D2D (x(Pr) 0.16667) |
| NiPr-15Rah.tdb | 1553.24 | FCC_A1 (x(Pr) 0) + LIQUID (x(Pr) 0.08224) + NI5PR_D2D (x(Pr) 0.16667) |
| NiPr-15Rah.tdb | 1553.24 | FCC_A1 (x(Pr) 0) + LIQUID (x(Pr) 0.08219) + NI5PR_D2D (x(Pr) 0.16667) |
| NiPr-15Rah.tdb | 1434.47 | NI5PR_D2D (x(Pr) 0.16667) + NI7PR2 (x(Pr) 0.22222) + LIQUID (x(Pr) 0.30014) |
| NiPr-15Rah.tdb | 1434.47 | NI5PR_D2D (x(Pr) 0.16667) + NI7PR2 (x(Pr) 0.22222) + LIQUID (x(Pr) 0.3001) |
| NiPr-15Rah.tdb | 1302.41 | NI7PR2 (x(Pr) 0.22222) + NI3PR (x(Pr) 0.25) + LIQUID (x(Pr) 0.34389) |
| NiPr-15Rah.tdb | 1302.41 | NI7PR2 (x(Pr) 0.22222) + NI3PR (x(Pr) 0.25) + LIQUID (x(Pr) 0.34382) |
| NiPr-15Rah.tdb | 1302.41 | NI7PR2 (x(Pr) 0.22222) + NI3PR (x(Pr) 0.25) + LIQUID (x(Pr) 0.34391) |
| NiPr-15Rah.tdb | 1193.9 | NI3PR (x(Pr) 0.25) + NI2PR_C15 (x(Pr) 0.33333) + LIQUID (x(Pr) 0.37398) |
| NiPr-15Rah.tdb | 1193.89 | NI3PR (x(Pr) 0.25) + NI2PR_C15 (x(Pr) 0.33333) + LIQUID (x(Pr) 0.37416) |
| NiPr-15Rah.tdb | 1193.89 | NI3PR (x(Pr) 0.25) + NI2PR_C15 (x(Pr) 0.33333) + LIQUID (x(Pr) 0.37421) |
| NiPr-15Rah.tdb | 1068 | LIQUID (x(Pr) 0.93371) + BCC_A2 (x(Pr) 1) + DHCP (x(Pr) 1) |
| NiPr-15Rah.tdb | 1068 | LIQUID (x(Pr) 0.93393) + DHCP (x(Pr) 1) + BCC_A2 (x(Pr) 1) |
| NiPr-15Rah.tdb | 1005.8 | NI2PR_C15 (x(Pr) 0.33333) + LIQUID (x(Pr) 0.44825) + NIPR_B33 (x(Pr) 0.5) |
| NiPr-15Rah.tdb | 1005.8 | NI2PR_C15 (x(Pr) 0.33333) + LIQUID (x(Pr) 0.44822) + NIPR_B33 (x(Pr) 0.5) |
| NiPr-15Rah.tdb | 1005.8 | NI2PR_C15 (x(Pr) 0.33333) + LIQUID (x(Pr) 0.44831) + NIPR_B33 (x(Pr) 0.5) |
| NiPr-15Rah.tdb | 833.25 | NI3PR7_D102 (x(Pr) 0.7) + LIQUID (x(Pr) 0.73116) + NIPR3_D011 (x(Pr) 0.75) |
| NiPr-15Rah.tdb | 833.25 | NI3PR7_D102 (x(Pr) 0.7) + LIQUID (x(Pr) 0.73147) + NIPR3_D011 (x(Pr) 0.75) |
| NiPr-15Rah.tdb | 833.25 | NI3PR7_D102 (x(Pr) 0.7) + LIQUID (x(Pr) 0.73084) + NIPR3_D011 (x(Pr) 0.75) |
| NiPr-15Rah.tdb | 827.08 | NIPR3_D011 (x(Pr) 0.75) + LIQUID (x(Pr) 0.79157) + DHCP (x(Pr) 1) |
| NiPr-15Rah.tdb | 827.08 | NIPR3_D011 (x(Pr) 0.75) + LIQUID (x(Pr) 0.7915) + DHCP (x(Pr) 1) |
| NiPr-15Rah.tdb | 821.52 | NIPR_B33 (x(Pr) 0.5) + LIQUID (x(Pr) 0.64868) + NI3PR7_D102 (x(Pr) 0.7) |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/NI/NI-PR.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/NI/NI-PR.json) · [CALPHAD hull NiPr-05Hua](https://data.orchid-project.org/hulls/calphad-sgte/NI/NI-PR--NiPr-05Hua.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Ni–Pr system (107)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 1658.15 | congruent melting: Liquid -> Ni5Pr | Liquid: Ni 0.833333, Pr 0.166667; Ni5Pr: Ni 0.833333, Pr 0.166667 | experimental | [1] Huang 2005; _cites Pan 1984_ | Table 2, p. 4, row 7; `ORC-2PMEIFPIFB` |  |
| 1658.15 | congruent melting: Liquid -> Ni5Pr | Liquid: Ni 0.833333, Pr 0.166667; Ni5Pr: Ni 0.833333, Pr 0.166667 | experimental | [1] Huang 2005 | Table 2, p. 4, row 6; `ORC-AKDY6WQ73W` |  |
| 1658.15 | congruent melting: Liquid -> Ni5Pr | Liquid: Pr 0.1667; Ni5Pr: Ni 0.833333, Pr 0.166667 | model | [1] Huang 2005 | Table 2, p. 4, row 5; `ORC-V257CXPSQG` |  |
| 1638.15 | congruent melting: Liquid -> Ni5Pr | Liquid: Ni 0.833333, Pr 0.166667; Ni5Pr: Ni 0.833333, Pr 0.166667 | experimental | [1] Huang 2005; _cites Vogel 1947_ | Table 2, p. 4, row 8; `ORC-55UJH5LJM5` |  |
| 1555 | eutectic: liq. -> Ni5Pr + fcc(Ni) | L: Pr 0.0917 | model | [2] Du 1999 | Table 8, p. 6, row 1; `ORC-FGLYIKKCGF` |  |
| 1555 | eutectic: Liquid -> Ni5Pr + fcc (Ni) | Liquid: Pr 0.092; Ni5Pr: Pr 0.166667 | experimental | [3] Rahou 2015; _cites Borzone 2001_ [doi](https://doi.org/10.1016/s0925-8388%2800%2901382-7) | Table 4, p. 3, row 5; `ORC-HQDHPHDSQC` |  |
| 1553.15 | eutectic: Liquid -> Ni5Pr + fcc (Ni) | Liquid: Pr 0.11; Ni5Pr: Ni 0.833333, Pr 0.166667 | experimental | [1] Huang 2005; _cites Pan 1984_ | Table 2, p. 4, row 3; `ORC-MLDQD7MNLJ` |  |
| 1553.15 | eutectic: Liquid -> Ni5Pr + fcc (Ni) | Ni5Pr: Ni 0.833333, Pr 0.166667 | experimental | [1] Huang 2005 | Table 2, p. 4, row 2; `ORC-SQPIIL4T4N` |  |
| 1553.15 | eutectic: Liquid -> Ni5Pr + fcc (Ni) | Liquid: Pr 0.0843; Ni5Pr: Ni 0.833333, Pr 0.166667 | model | [1] Huang 2005 | Table 2, p. 4, row 1; `ORC-XASAPJJAIS` |  |
| 1553 | eutectic: Liquid -> Ni5Pr + fcc (Ni) | Liquid: Pr 0.084; Ni5Pr: Pr 0.166667 | experimental | [3] Rahou 2015; _cites Colinet 1986_ [doi](https://doi.org/10.1007/bf02643852) | Table 4, p. 3, row 3; `ORC-IZ5GQIGVZC` |  |
| 1553 | eutectic: Liquid -> Ni5Pr + fcc (Ni) | Liquid: Pr 0.083; Ni5Pr: Pr 0.166667 | model | [3] Rahou 2015 | Table 4, p. 3, row 1; `ORC-KS6YYDDJ3H` |  |
| 1553 | eutectic: Liquid -> Ni5Pr + fcc (Ni) | Liquid: Pr 0.11; Ni5Pr: Pr 0.166667 | experimental | [3] Rahou 2015; _cites Pan 1984_ | Table 4, p. 3, row 2; `ORC-OLFH2EMFJE` |  |
| 1553 | eutectic: liq. -> Ni5Pr + fcc(Ni) | L: Pr 0.11 | unspecified | [2] Du 1999; _cites Pan 1989_ [doi](https://doi.org/10.1007/bf02877506) | Table 8, p. 6, row 2; `ORC-Q5THXMI32Q` |  |
| 1543.15 | eutectic: Liquid -> Ni5Pr + fcc (Ni) | Liquid: Pr 0.09; Ni5Pr: Ni 0.833333, Pr 0.166667 | experimental | [1] Huang 2005; _cites Vogel 1947_ | Table 2, p. 4, row 4; `ORC-NDQMBJ5C5F` |  |
| 1543 | eutectic: Liquid -> Ni5Pr + fcc (Ni) | Liquid: Pr 0.09; Ni5Pr: Pr 0.166667 | experimental | [3] Rahou 2015; _cites Vogel 1947_ [doi](https://doi.org/10.1515/ijmr-1947-380401) | Table 4, p. 3, row 4; `ORC-43VILRHQTN` |  |
| 1435.15 | Liquid + Ni5Pr -> Ni7Pr2 | Liquid: Pr 0.2867; Ni5Pr: Ni 0.833333, Pr 0.166667; Ni7Pr2: Ni 0.777778, Pr 0.222222 | model | [1] Huang 2005 | Table 2, p. 4, row 9; `ORC-5T2WQOZ52L` |  |
| 1435.15 | Liquid + Ni5Pr -> Ni7Pr2 | Ni5Pr: Ni 0.833333, Pr 0.166667; Ni7Pr2: Ni 0.777778, Pr 0.222222 | experimental | [1] Huang 2005 | Table 2, p. 4, row 10; `ORC-YYCH3OT6ED` |  |
| 1435 | peritectic: Liquid + Ni5Pr -> Ni7Pr2 | Liquid: Pr 0.3; Ni5Pr: Pr 0.166667; Ni7Pr2: Pr 0.222222 | model | [3] Rahou 2015 | Table 4, p. 3, row 10; `ORC-MWHCEAECX4` |  |
| 1435 | peritectic: Liquid + Ni5Pr -> Ni7Pr2 | Liquid: Pr 0.287; Ni5Pr: Pr 0.166667; Ni7Pr2: Pr 0.222222 | experimental | [3] Rahou 2015; _cites Colinet 1986_ [doi](https://doi.org/10.1007/bf02643852) | Table 4, p. 3, row 14; `ORC-QYBXS4KPNH` |  |
| 1434 | peritectic: Liquid + Ni5Pr -> Ni7Pr2 | Liquid: Pr 0.299; Ni5Pr: Pr 0.166667; Ni7Pr2: Pr 0.222222 | experimental | [3] Rahou 2015; _cites Borzone 2001_ [doi](https://doi.org/10.1016/s0925-8388%2800%2901382-7) | Table 4, p. 3, row 13; `ORC-TO76O6GDEP` |  |
| 1434 | liq. + Ni5Pr -> Ni7Pr2 | L: Pr 0.2994 | model | [2] Du 1999 | Table 8, p. 6, row 5; `ORC-XLLT3KKHA6` |  |
| 1433.15 | Liquid + Ni5Pr -> Ni7Pr2 | Liquid: Pr 0.3; Ni5Pr: Ni 0.833333, Pr 0.166667; Ni7Pr2: Ni 0.777778, Pr 0.222222 | experimental | [1] Huang 2005; _cites Pan 1984_ | Table 2, p. 4, row 11; `ORC-K5SLMOSZFG` |  |
| 1433 | peritectic: Liquid + Ni5Pr -> Ni7Pr2 | Liquid: Pr 0.3; Ni5Pr: Pr 0.166667; Ni7Pr2: Pr 0.222222 | experimental | [3] Rahou 2015; _cites Pan 1984_ | Table 4, p. 3, row 11; `ORC-23ORWZPNTA` |  |
| 1433 | liq. + Ni5Pr -> Ni7Pr2 | L: Pr 0.29 | unspecified | [2] Du 1999; _cites Pan 1989_ [doi](https://doi.org/10.1007/bf02877506) | Table 8, p. 6, row 6; `ORC-KKTRBBWCF5` |  |
| 1373.15 | Liquid + Ni5Pr -> Ni7Pr2 | Ni5Pr: Ni 0.833333, Pr 0.166667; Ni7Pr2: Ni 0.777778, Pr 0.222222 | experimental | [1] Huang 2005; _cites Vogel 1947_ | Table 2, p. 4, row 12; `ORC-MYOO2LP2AO` |  |
| 1373 | peritectic: Liquid + Ni5Pr -> Ni7Pr2 | Ni5Pr: Pr 0.166667; Ni7Pr2: Pr 0.222222 | experimental | [3] Rahou 2015; _cites Vogel 1947_ [doi](https://doi.org/10.1515/ijmr-1947-380401) | Table 4, p. 3, row 12; `ORC-Z4JCM3WO66` |  |
| 1302.15 | Liquid + Ni7Pr2 -> Ni3Pr | Ni7Pr2: Ni 0.777778, Pr 0.222222; Ni3Pr: Ni 0.75, Pr 0.25 | experimental | [1] Huang 2005 | Table 2, p. 4, row 14; `ORC-MEU6ZMYRB2` |  |
| 1302.15 | Liquid + Ni7Pr2 -> Ni3Pr | Liquid: Pr 0.3337; Ni7Pr2: Ni 0.777778, Pr 0.222222; Ni3Pr: Ni 0.75, Pr 0.25 | model | [1] Huang 2005 | Table 2, p. 4, row 13; `ORC-NAI5AQFSCI` |  |
| 1302 | peritectic: Liquid + Ni7Pr2 -> Ni3Pr | Liquid: Pr 0.344; Ni7Pr2: Pr 0.222222; Ni3Pr: Pr 0.25 | model | [3] Rahou 2015 | Table 4, p. 3, row 15; `ORC-5OBLR5MSEV` |  |
| 1302 | peritectic: Liquid + Ni7Pr2 -> Ni3Pr | Liquid: Pr 0.334; Ni7Pr2: Pr 0.222222; Ni3Pr: Pr 0.25 | experimental | [3] Rahou 2015; _cites Colinet 1986_ [doi](https://doi.org/10.1007/bf02643852) | Table 4, p. 3, row 19; `ORC-IMHOO7L325` |  |
| 1283.15 | Liquid + Ni7Pr2 -> Ni3Pr | Liquid: Pr 0.35; Ni7Pr2: Ni 0.777778, Pr 0.222222; Ni3Pr: Ni 0.75, Pr 0.25 | experimental | [1] Huang 2005; _cites Pan 1984_ | Table 2, p. 4, row 15; `ORC-BTXDGR6XW4` |  |
| 1283 | peritectic: Liquid + Ni7Pr2 -> Ni3Pr | Liquid: Pr 0.331; Ni7Pr2: Pr 0.222222; Ni3Pr: Pr 0.25 | experimental | [3] Rahou 2015; _cites Borzone 2001_ [doi](https://doi.org/10.1016/s0925-8388%2800%2901382-7) | Table 4, p. 3, row 17; `ORC-2SV6PO3M6P` |  |
| 1283 | liq. + Ni7Pr2 -> Ni3Pr | L: Pr 0.35 | unspecified | [2] Du 1999; _cites Pan 1989_ [doi](https://doi.org/10.1007/bf02877506) | Table 8, p. 6, row 8; `ORC-6Y54JNFAFV` |  |
| 1283 | peritectic: Liquid + Ni7Pr2 -> Ni3Pr | Liquid: Pr 0.35; Ni7Pr2: Pr 0.222222; Ni3Pr: Pr 0.25 | experimental | [3] Rahou 2015; _cites Pan 1984_ | Table 4, p. 3, row 16; `ORC-G7C4EOV6MU` |  |
| 1283 | liq. + Ni7Pr2 -> Ni3Pr | L: Pr 0.3313 | model | [2] Du 1999 | Table 8, p. 6, row 7; `ORC-SAA2TXLEPO` |  |
| 1245.15 | Liquid + Ni7Pr2 -> Ni3Pr | Ni7Pr2: Ni 0.777778, Pr 0.222222; Ni3Pr: Ni 0.75, Pr 0.25 | experimental | [1] Huang 2005; _cites Vogel 1947_ | Table 2, p. 4, row 16; `ORC-OHAVREFWJ2` |  |
| 1245 | peritectic: Liquid + Ni7Pr2 -> Ni3Pr | Ni7Pr2: Pr 0.222222; Ni3Pr: Pr 0.25 | experimental | [3] Rahou 2015; _cites Vogel 1947_ [doi](https://doi.org/10.1515/ijmr-1947-380401) | Table 4, p. 3, row 18; `ORC-DTIJMDSI4Q` |  |
| 1194.15 | Liquid + Ni3Pr -> Ni2Pr | Liquid: Pr 0.3658; Ni3Pr: Ni 0.75, Pr 0.25; Ni2Pr: Ni 0.666667, Pr 0.333333 | model | [1] Huang 2005 | Table 2, p. 4, row 17; `ORC-TD6LKMIM3K` |  |
| 1194.15 | Liquid + Ni3Pr -> Ni2Pr | Ni3Pr: Ni 0.75, Pr 0.25; Ni2Pr: Ni 0.666667, Pr 0.333333 | experimental | [1] Huang 2005 | Table 2, p. 4, row 18; `ORC-XOGE4FFYZQ` |  |
| 1194 | peritectic: Liquid + Ni3Pr -> Ni2Pr | Liquid: Pr 0.366; Ni3Pr: Pr 0.25; Ni2Pr: Pr 0.333333 | experimental | [3] Rahou 2015; _cites Colinet 1986_ [doi](https://doi.org/10.1007/bf02643852) | Table 4, p. 3, row 24; `ORC-35YGNUNLLF` |  |
| 1194 | peritectic: Liquid + Ni3Pr -> Ni2Pr | Liquid: Pr 0.374; Ni3Pr: Pr 0.25; Ni2Pr: Pr 0.333333 | model | [3] Rahou 2015 | Table 4, p. 3, row 20; `ORC-3BBONOKCUG` |  |
| 1183.15 | Liquid + Ni3Pr -> Ni2Pr | Liquid: Pr 0.38; Ni3Pr: Ni 0.75, Pr 0.25; Ni2Pr: Ni 0.666667, Pr 0.333333 | experimental | [1] Huang 2005; _cites Pan 1984_ | Table 2, p. 4, row 19; `ORC-KP2DHU2XNH` |  |
| 1183 | liq. + Ni3Pr -> Ni2Pr | L: Pr 0.392 | model | [2] Du 1999 | Table 8, p. 6, row 9; `ORC-5FZRJQHSRN` |  |
| 1183 | peritectic: Liquid + Ni3Pr -> Ni2Pr | Liquid: Pr 0.392; Ni3Pr: Pr 0.25; Ni2Pr: Pr 0.333333 | experimental | [3] Rahou 2015; _cites Borzone 2001_ [doi](https://doi.org/10.1016/s0925-8388%2800%2901382-7) | Table 4, p. 3, row 22; `ORC-AUSYLIGWSG` |  |
| 1183 | peritectic: Liquid + Ni3Pr -> Ni2Pr | Liquid: Pr 0.38; Ni3Pr: Pr 0.25; Ni2Pr: Pr 0.333333 | experimental | [3] Rahou 2015; _cites Pan 1984_ | Table 4, p. 3, row 21; `ORC-BPLRV26EJJ` |  |
| 1183 | liq. + Ni3Pr -> Ni2Pr | L: Pr 0.38 | unspecified | [2] Du 1999; _cites Pan 1989_ [doi](https://doi.org/10.1007/bf02877506) | Table 8, p. 6, row 10; `ORC-TPVTHWJBDJ` |  |
| 1154 | peritectic: Liquid + Ni3Pr -> Ni2Pr | Ni3Pr: Pr 0.25; Ni2Pr: Pr 0.333333 | experimental | [3] Rahou 2015; _cites Vogel 1947_ [doi](https://doi.org/10.1515/ijmr-1947-380401) | Table 4, p. 3, row 23; `ORC-KDGEGPQVAU` |  |
| 1153.15 | Liquid + Ni3Pr -> Ni2Pr | Ni3Pr: Ni 0.75, Pr 0.25; Ni2Pr: Ni 0.666667, Pr 0.333333 | experimental | [1] Huang 2005; _cites Vogel 1947_ | Table 2, p. 4, row 20; `ORC-KBJUQLBNMN` |  |
| 1068.15 | Liquid + bcc (Pr) -> dhcp (Pr) |  | experimental | [1] Huang 2005; _cites Pan 1984_ | Table 2, p. 4, row 49; `ORC-V7I4UIOE24` |  |
| 1053.15 | Liquid + bcc (Pr) -> dhcp (Pr) | Liquid: Pr 0.89 | model | [1] Huang 2005 | Table 2, p. 4, row 47; `ORC-4FTU6XFDLT` |  |
| 1053.15 | Liquid + bcc (Pr) -> dhcp (Pr) |  | experimental | [1] Huang 2005 | Table 2, p. 4, row 48; `ORC-GSS2IRM5ZW` |  |
| 1039.15 | congruent melting: Liquid -> NiPr | Liquid: Ni 0.5, Pr 0.5; NiPr: Ni 0.5, Pr 0.5 | experimental | [1] Huang 2005; _cites Huang_ | Table 2, p. 4, row 26; `ORC-2Q6HEO2756` |  |
| 1039.15 | congruent melting: Liquid -> NiPr | Liquid: Pr 0.5; NiPr: Ni 0.5, Pr 0.5 | model | [1] Huang 2005 | Table 2, p. 4, row 25; `ORC-KLH45ZQMXA` |  |
| 1006.15 | eutectic: Liquid -> Ni2Pr + NiPr | Liquid: Pr 0.4429; Ni2Pr: Ni 0.666667, Pr 0.333333; NiPr: Ni 0.5, Pr 0.5 | model | [1] Huang 2005 | Table 2, p. 4, row 21; `ORC-T2V3XBJJSP` |  |
| 1006 | eutectic: Liquid -> Ni2Pr + NiPr | Liquid: Pr 0.448; Ni2Pr: Pr 0.333333; NiPr: Pr 0.5 | model | [3] Rahou 2015 | Table 4, p. 3, row 25; `ORC-7DJRP3HBMI` |  |
| 1006 | eutectic: Liquid -> Ni2Pr + NiPr | Liquid: Pr 0.443; Ni2Pr: Pr 0.333333; NiPr: Pr 0.5 | experimental | [3] Rahou 2015; _cites Colinet 1986_ [doi](https://doi.org/10.1007/bf02643852) | Table 4, p. 3, row 29; `ORC-VMCZWOBPPS` |  |
| 1005.15 | eutectic: Liquid -> Ni2Pr + NiPr | Liquid: Pr 0.45; Ni2Pr: Ni 0.666667, Pr 0.333333; NiPr: Ni 0.5, Pr 0.5 | experimental | [1] Huang 2005; _cites Huang_ | Table 2, p. 4, row 22; `ORC-EW3BOL6KJY` |  |
| 1005 | eutectic: Liquid -> Ni2Pr + NiPr | Liquid: Pr 0.45; Ni2Pr: Pr 0.333333; NiPr: Pr 0.5 | experimental | [3] Rahou 2015; _cites Huang 2005_ [doi](https://doi.org/10.1007/s11669-005-0107-3) | Table 4, p. 3, row 26; `ORC-M7IBWAHBAH` |  |
| 1003.15 | congruent melting: Liquid -> NiPr | Liquid: Ni 0.5, Pr 0.5; NiPr: Ni 0.5, Pr 0.5 | experimental | [1] Huang 2005; _cites Vogel 1947_ | Table 2, p. 4, row 28; `ORC-55FASQTDDX` |  |
| 1003.15 | congruent melting: Liquid -> NiPr | Liquid: Ni 0.5, Pr 0.5; NiPr: Ni 0.5, Pr 0.5 | experimental | [1] Huang 2005; _cites Pan 1984_ | Table 2, p. 4, row 27; `ORC-JLP53IIEOC` |  |
| 978.15 | eutectic: Liquid -> Ni2Pr + NiPr | Liquid: Pr 0.47; Ni2Pr: Ni 0.666667, Pr 0.333333; NiPr: Ni 0.5, Pr 0.5 | experimental | [1] Huang 2005; _cites Vogel 1947_ | Table 2, p. 4, row 24; `ORC-35MNRGYGVJ` |  |
| 978 | eutectic: Liquid -> Ni2Pr + NiPr | Liquid: Pr 0.47; Ni2Pr: Pr 0.333333; NiPr: Pr 0.5 | experimental | [3] Rahou 2015; _cites Vogel 1947_ [doi](https://doi.org/10.1515/ijmr-1947-380401) | Table 4, p. 3, row 28; `ORC-TY7ARI7IJB` |  |
| 953.15 | eutectic: Liquid -> Ni2Pr + NiPr | Liquid: Pr 0.47; Ni2Pr: Ni 0.666667, Pr 0.333333; NiPr: Ni 0.5, Pr 0.5 | experimental | [1] Huang 2005; _cites Pan 1984_ | Table 2, p. 4, row 23; `ORC-P6MIUTSVNW` |  |
| 953 | eutectic: Liquid -> Ni2Pr + NiPr | Liquid: Pr 0.47; Ni2Pr: Pr 0.333333; NiPr: Pr 0.5 | experimental | [3] Rahou 2015; _cites Pan 1984_ | Table 4, p. 3, row 27; `ORC-ESHU3PIWIU` |  |
| 953 | eutectic: liq. -> NiPr + Ni2Pr | L: Pr 0.47 | unspecified | [2] Du 1999; _cites Pan 1989_ [doi](https://doi.org/10.1007/bf02877506) | Table 8, p. 6, row 12; `ORC-WJKXVRBNNW` |  |
| 952 | eutectic: Liquid -> Ni2Pr + NiPr | Liquid: Pr 0.419; Ni2Pr: Pr 0.333333; NiPr: Pr 0.5 | experimental | [3] Rahou 2015; _cites Borzone 2001_ [doi](https://doi.org/10.1016/s0925-8388%2800%2901382-7) | Table 4, p. 3, row 30; `ORC-BIHPTBZ2UV` |  |
| 952 | eutectic: liq. -> NiPr + Ni2Pr | L: Pr 0.4194 | model | [2] Du 1999 | Table 8, p. 6, row 11; `ORC-X72BBN7YZF` |  |
| 839.15 | congruent melting: Liquid -> Ni3Pr7 | Liquid: Ni 0.3, Pr 0.7; Ni3Pr7: Ni 0.3, Pr 0.7 | experimental | [1] Huang 2005; _cites Huang_ | Table 2, p. 4, row 33; `ORC-L7HFIK4A3C` |  |
| 839.15 | congruent melting: Liquid -> Ni3Pr7 | Liquid: Pr 0.7; Ni3Pr7: Ni 0.3, Pr 0.7 | model | [1] Huang 2005 | Table 2, p. 4, row 32; `ORC-VEO5BTZHHN` |  |
| 835.15 | congruent melting: Liquid -> NiPr3 | Liquid: Pr 0.75; NiPr3: Ni 0.25, Pr 0.75 | model | [1] Huang 2005 | Table 2, p. 4, row 38; `ORC-HT3QWDDZBT` |  |
| 835.15 | congruent melting: Liquid -> NiPr3 | Liquid: Ni 0.25, Pr 0.75; NiPr3: Ni 0.25, Pr 0.75 | experimental | [1] Huang 2005; _cites Huang_ | Table 2, p. 4, row 39; `ORC-PAB7TGLGAS` |  |
| 833 | eutectic: Liquid -> Ni3Pr7 + NiPr3 | Liquid: Pr 0.731; Ni3Pr7: Pr 0.7; NiPr3: Pr 0.75 | model | [3] Rahou 2015 | Table 4, p. 3, row 43; `ORC-7IIB5MGFD2` |  |
| 832.15 | eutectic: Liquid -> Ni3Pr7 + NiPr3 | Liquid: Pr 0.7284; Ni3Pr7: Ni 0.3, Pr 0.7; NiPr3: Ni 0.25, Pr 0.75 | model | [1] Huang 2005 | Table 2, p. 4, row 35; `ORC-SOOABAGRKO` |  |
| 832 | eutectic: Liquid -> Ni3Pr7 + NiPr3 | Liquid: Pr 0.728; Ni3Pr7: Pr 0.7; NiPr3: Pr 0.75 | experimental | [3] Rahou 2015; _cites Colinet 1986_ [doi](https://doi.org/10.1007/bf02643852) | Table 4, p. 3, row 47; `ORC-CAUP6STKSA` |  |
| 830.15 | eutectic: Liquid -> Ni3Pr7 + NiPr3 | Liquid: Pr 0.72; Ni3Pr7: Ni 0.3, Pr 0.7; NiPr3: Ni 0.25, Pr 0.75 | experimental | [1] Huang 2005; _cites Huang_ | Table 2, p. 4, row 36; `ORC-EN7OYZZNQH` |  |
| 830 | eutectic: Liquid -> Ni3Pr7 + NiPr3 | Liquid: Pr 0.72; Ni3Pr7: Pr 0.7; NiPr3: Pr 0.75 | experimental | [3] Rahou 2015; _cites Huang 2005_ [doi](https://doi.org/10.1007/s11669-005-0107-3) | Table 4, p. 3, row 44; `ORC-XE3PGJIN4A` |  |
| 827.15 | eutectic: Liquid -> NiPr3 + dhcp (Pr) | Liquid: Pr 0.77; NiPr3: Ni 0.25, Pr 0.75 | experimental | [1] Huang 2005; _cites Huang_ | Table 2, p. 4, row 44; `ORC-E3HIEVAXFE` |  |
| 827.15 | eutectic: Liquid -> NiPr3 + dhcp (Pr) | Liquid: Pr 0.77; NiPr3: Ni 0.25, Pr 0.75 | experimental | [1] Huang 2005 | Table 2, p. 4, row 43; `ORC-K2AQ3VBPZM` |  |
| 827.15 | eutectic: Liquid -> NiPr3 + dhcp (Pr) | Liquid: Pr 0.7885; NiPr3: Ni 0.25, Pr 0.75 | model | [1] Huang 2005 | Table 2, p. 4, row 42; `ORC-P4Q3KAVIJV` |  |
| 827 | eutectic: Liquid -> NiPr3 + dhcp (Pr) | Liquid: Pr 0.792; NiPr3: Pr 0.75 | model | [3] Rahou 2015 | Table 4, p. 3, row 53; `ORC-53ZCBZQ7ON` |  |
| 827 | eutectic: Liquid -> NiPr3 + dhcp (Pr) | Liquid: Pr 0.788; NiPr3: Pr 0.75 | experimental | [3] Rahou 2015; _cites Colinet 1986_ [doi](https://doi.org/10.1007/bf02643852) | Table 4, p. 3, row 55; `ORC-72SK5UXBHJ` |  |
| 827 | eutectic: Liquid -> NiPr3 + dhcp (Pr) | Liquid: Pr 0.77; NiPr3: Pr 0.75 | experimental | [3] Rahou 2015; _cites Huang 2005_ [doi](https://doi.org/10.1007/s11669-005-0107-3) | Table 4, p. 3, row 54; `ORC-OM55C25FAI` |  |
| 823.15 | eutectic: Liquid -> NiPr + Ni3Pr7 | Liquid: Pr 0.6591; NiPr: Ni 0.5, Pr 0.5; Ni3Pr7: Ni 0.3, Pr 0.7 | model | [1] Huang 2005 | Table 2, p. 4, row 29; `ORC-4UMCMYPCLB` |  |
| 823.15 | eutectic: Liquid -> NiPr + Ni3Pr7 | Liquid: Pr 0.65; NiPr: Ni 0.5, Pr 0.5; Ni3Pr7: Ni 0.3, Pr 0.7 | experimental | [1] Huang 2005; _cites Huang_ | Table 2, p. 4, row 30; `ORC-CGUTCZXR7M` |  |
| 823 | eutectic: Liquid -> NiPr + Ni3Pr7 | Liquid: Pr 0.659; NiPr: Pr 0.5; Ni3Pr7: Pr 0.7 | experimental | [3] Rahou 2015; _cites Colinet 1986_ [doi](https://doi.org/10.1007/bf02643852) | Table 4, p. 3, row 36; `ORC-M7Y36AQYJY` |  |
| 823 | eutectic: Liquid -> NiPr + Ni3Pr7 | Liquid: Pr 0.65; NiPr: Pr 0.5; Ni3Pr7: Pr 0.7 | experimental | [3] Rahou 2015; _cites Huang 2005_ [doi](https://doi.org/10.1007/s11669-005-0107-3) | Table 4, p. 3, row 35; `ORC-NUASBN5ABQ` |  |
| 822 | eutectic: Liquid -> NiPr + Ni3Pr7 | Liquid: Pr 0.649; NiPr: Pr 0.5; Ni3Pr7: Pr 0.7 | model | [3] Rahou 2015 | Table 4, p. 3, row 34; `ORC-AH75NLO5UL` |  |
| 808.15 | congruent melting: Liquid -> Ni3Pr7 | Liquid: Ni 0.3, Pr 0.7; Ni3Pr7: Ni 0.3, Pr 0.7 | experimental | [1] Huang 2005; _cites Pan 1984_ | Table 2, p. 4, row 34; `ORC-63MMWTTKT3` |  |
| 803.15 | congruent melting: Liquid -> NiPr3 | Liquid: Ni 0.25, Pr 0.75; NiPr3: Ni 0.25, Pr 0.75 | experimental | [1] Huang 2005; _cites Vogel 1947_ | Table 2, p. 4, row 41; `ORC-RBLLTNZOBG` |  |
| 798.15 | congruent melting: Liquid -> NiPr3 | Liquid: Ni 0.25, Pr 0.75; NiPr3: Ni 0.25, Pr 0.75 | experimental | [1] Huang 2005; _cites Pan 1984_ | Table 2, p. 4, row 40; `ORC-OEXXE7GLKW` |  |
| 783.15 | eutectic: Liquid -> NiPr + Ni3Pr7 | Liquid: Pr 0.675; NiPr: Ni 0.5, Pr 0.5; Ni3Pr7: Ni 0.3, Pr 0.7 | experimental | [1] Huang 2005; _cites Pan 1984_ | Table 2, p. 4, row 31; `ORC-HNOH42LQIL` |  |
| 783 | eutectic: liq. -> NiPr + Ni3Pr7 | L: Pr 0.675 | unspecified | [2] Du 1999; _cites Pan 1989_ [doi](https://doi.org/10.1007/bf02877506) | Table 8, p. 6, row 16; `ORC-3QKTZBFYHE` |  |
| 783 | eutectic: liq. -> NiPr + Ni3Pr7 | L: Pr 0.6751 | model | [2] Du 1999 | Table 8, p. 6, row 15; `ORC-Q7WU2PV7Q3` |  |
| 783 | eutectic: Liquid -> NiPr + Ni3Pr7 | Liquid: Pr 0.675; NiPr: Pr 0.5; Ni3Pr7: Pr 0.7 | experimental | [3] Rahou 2015; _cites Borzone 2001_ [doi](https://doi.org/10.1016/s0925-8388%2800%2901382-7) | Table 4, p. 3, row 38; `ORC-QXSVYV7GS5` |  |
| 783 | eutectic: Liquid -> NiPr + Ni3Pr7 | Liquid: Pr 0.67; NiPr: Pr 0.5; Ni3Pr7: Pr 0.7 | experimental | [3] Rahou 2015; _cites Pan 1984_ | Table 4, p. 3, row 37; `ORC-TY5QDXOJRD` |  |
| 777 | eutectic: liq. -> NiPr3 + Ni3Pr7 | L: Pr 0.7288 | model | [2] Du 1999 | Table 8, p. 6, row 19; `ORC-45IDZLAYCF` |  |
| 777 | eutectic: Liquid -> Ni3Pr7 + NiPr3 | Liquid: Pr 0.729; Ni3Pr7: Pr 0.7; NiPr3: Pr 0.75 | experimental | [3] Rahou 2015; _cites Borzone 2001_ [doi](https://doi.org/10.1016/s0925-8388%2800%2901382-7) | Table 4, p. 3, row 46; `ORC-Z2IAQFK6DO` |  |
| 763.15 | eutectic: Liquid -> Ni3Pr7 + NiPr3 | Liquid: Pr 0.73; Ni3Pr7: Ni 0.3, Pr 0.7; NiPr3: Ni 0.25, Pr 0.75 | experimental | [1] Huang 2005; _cites Pan 1984_ | Table 2, p. 4, row 37; `ORC-AHWYEC6ABD` |  |
| 763 | eutectic: liq. -> NiPr3 + Ni3Pr7 | L: Pr 0.73 | unspecified | [2] Du 1999; _cites Pan 1989_ [doi](https://doi.org/10.1007/bf02877506) | Table 8, p. 6, row 20; `ORC-6KQLOIYOGZ` |  |
| 763 | eutectic: Liquid -> Ni3Pr7 + NiPr3 | Liquid: Pr 0.73; Ni3Pr7: Pr 0.7; NiPr3: Pr 0.75 | experimental | [3] Rahou 2015; _cites Pan 1984_ | Table 4, p. 3, row 45; `ORC-MQKM2H5F7C` |  |
| 753.15 | eutectic: Liquid -> NiPr3 + dhcp (Pr) | Liquid: Pr 0.85; NiPr3: Ni 0.25, Pr 0.75 | experimental | [1] Huang 2005; _cites Vogel 1947_ | Table 2, p. 4, row 46; `ORC-7QPWWKLHF2` |  |
| 753 | eutectic: Liquid -> NiPr3 + dhcp (Pr) | Liquid: Pr 0.85; NiPr3: Pr 0.75 | experimental | [3] Rahou 2015; _cites Vogel 1947_ [doi](https://doi.org/10.1515/ijmr-1947-380401) | Table 4, p. 3, row 57; `ORC-R7SYALASFL` |  |
| 738 | eutectic: liq. -> dhcp(Pr) + NiPr3 | L: Pr 0.7856 | model | [2] Du 1999 | Table 8, p. 6, row 23; `ORC-SAZA45SGHA` |  |
| 738 | eutectic: Liquid -> NiPr3 + dhcp (Pr) | Liquid: Pr 0.785; NiPr3: Pr 0.75 | experimental | [3] Rahou 2015; _cites Borzone 2001_ [doi](https://doi.org/10.1016/s0925-8388%2800%2901382-7) | Table 4, p. 3, row 58; `ORC-UGSFFFMUXH` |  |
| 733.15 | eutectic: Liquid -> NiPr3 + dhcp (Pr) | Liquid: Pr 0.81; NiPr3: Ni 0.25, Pr 0.75 | experimental | [1] Huang 2005; _cites Pan 1984_ | Table 2, p. 4, row 45; `ORC-MZPHMO7VFU` |  |
| 733 | eutectic: liq. -> dhcp(Pr) + NiPr3 | L: Pr 0.81 | unspecified | [2] Du 1999; _cites Pan 1989_ [doi](https://doi.org/10.1007/bf02877506) | Table 8, p. 6, row 24; `ORC-2C57L3M33W` |  |
| 733 | eutectic: Liquid -> NiPr3 + dhcp (Pr) | Liquid: Pr 0.8; NiPr3: Pr 0.75 | experimental | [3] Rahou 2015; _cites Pan 1984_ | Table 4, p. 3, row 56; `ORC-XWZ36PEOO3` |  |

## Other properties

### Phase transition (34)

Table: Phase transition, Ni–Pr system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase transition | 0.44 K | 0.44 | magnetic: Ni5Pr; _alloy: Pr 0.166667_ | model | [3] Rahou 2015; _cites Sebek 2015_ | Table 1, p. 2, row 3; `ORC-KZ5VEN2RPZ` |  |
| Phase transition | 20 K | 20 | magnetic: Ni3Pr; _alloy: Pr 0.25_ | experimental | [3] Rahou 2015; _cites Paccard 1967_ | Table 1, p. 2, row 4; `ORC-BA7ICDHZF5` |  |
| Phase transition | 22 K | 22 | magnetic: NiPr; _alloy: Pr 0.5_ | experimental | [3] Rahou 2015; _cites Walline 1964_ [doi](https://doi.org/10.1063/1.1726127) | Table 1, p. 2, row 1; `ORC-GUUXWBT5PA` |  |
| Phase transition | 85 K | 85 | magnetic: Ni7Pr2; _alloy: Pr 0.222222_ | experimental | [3] Rahou 2015; _cites Lemaire 1967_ | Table 1, p. 2, row 2; `ORC-I5PJ54VUWV` |  |
| Phase transition | 797 K | 797 | congruent melting: Liquid -> NiPr3; _Liquid: Pr 0.75; NiPr3: Pr 0.75_ | experimental | [3] Rahou 2015; _cites Borzone 2001_ [doi](https://doi.org/10.1016/s0925-8388%2800%2901382-7) | Table 4, p. 3, row 52; `ORC-JR4WVECEGR` |  |
| Phase transition | 797 K | 797 | liq. -> NiPr3; _L: Pr 0.75_ | model | [2] Du 1999 | Table 8, p. 6, row 21; `ORC-RDLD3ITVYI` |  |
| Phase transition | 798 K | 798 | congruent melting: Liquid -> NiPr3; _Liquid: Pr 0.75; NiPr3: Pr 0.75_ | experimental | [3] Rahou 2015; _cites Pan 1984_ | Table 4, p. 3, row 50; `ORC-6PXYA567S7` |  |
| Phase transition | 798 K | 798 | liq. -> NiPr3; _L: Pr 0.75_ | unspecified | [2] Du 1999; _cites Pan 1989_ [doi](https://doi.org/10.1007/bf02877506) | Table 8, p. 6, row 22; `ORC-H5YC2E2MLF` |  |
| Phase transition | 803 K | 803 | congruent melting: Liquid -> NiPr3; _Liquid: Pr 0.75; NiPr3: Pr 0.75_ | experimental | [3] Rahou 2015; _cites Vogel 1947_ [doi](https://doi.org/10.1515/ijmr-1947-380401) | Table 4, p. 3, row 51; `ORC-TICKVYEUSR` |  |
| Phase transition | 807 K | 807 | congruent melting: Liquid -> Ni3Pr7; _Liquid: Pr 0.7; Ni3Pr7: Pr 0.7_ | experimental | [3] Rahou 2015; _cites Borzone 2001_ [doi](https://doi.org/10.1016/s0925-8388%2800%2901382-7) | Table 4, p. 3, row 42; `ORC-UZ5G2U3Y6H` |  |
| Phase transition | 807 K | 807 | liq. -> Ni3Pr7; _L: Pr 0.7_ | model | [2] Du 1999 | Table 8, p. 6, row 17; `ORC-FRJS3QPK6Z` |  |
| Phase transition | 808 K | 808 | congruent melting: Liquid -> Ni3Pr7; _Liquid: Pr 0.7; Ni3Pr7: Pr 0.7_ | experimental | [3] Rahou 2015; _cites Pan 1984_ | Table 4, p. 3, row 41; `ORC-G3G626DGCH` |  |
| Phase transition | 808 K | 808 | liq. -> Ni3Pr7; _L: Pr 0.7_ | unspecified | [2] Du 1999; _cites Pan 1989_ [doi](https://doi.org/10.1007/bf02877506) | Table 8, p. 6, row 18; `ORC-V2ZFWNHNKQ` |  |
| Phase transition | 835 K | 835 | congruent melting: Liquid -> NiPr3; _Liquid: Pr 0.75; NiPr3: Pr 0.75_ | experimental | [3] Rahou 2015; _cites Colinet 1986_ [doi](https://doi.org/10.1007/bf02643852) | Table 4, p. 3, row 69; `ORC-2CAB6PZPUV` |  |
| Phase transition | 835 K | 835 | congruent melting: Liquid -> NiPr3; _Liquid: Pr 0.75; NiPr3: Pr 0.75_ | experimental | [3] Rahou 2015; _cites Huang 2005_ [doi](https://doi.org/10.1007/s11669-005-0107-3) | Table 4, p. 3, row 68; `ORC-MYHX2Y74BA` |  |
| Phase transition | 835 K | 835 | congruent melting: Liquid -> NiPr3; _Liquid: Pr 0.75; NiPr3: Pr 0.75_ | model | [3] Rahou 2015 | Table 4, p. 3, row 48; `ORC-PUDDHOJFJY` |  |
| Phase transition | 839 K | 839 | congruent melting: Liquid -> Ni3Pr7; _Liquid: Pr 0.7; Ni3Pr7: Pr 0.7_ | model | [3] Rahou 2015 | Table 4, p. 3, row 39; `ORC-B2ILOX4VOF` |  |
| Phase transition | 839 K | 839 | congruent melting: Liquid -> Ni3Pr7; _Liquid: Pr 0.7; Ni3Pr7: Pr 0.7_ | experimental | [3] Rahou 2015; _cites Colinet 1986_ [doi](https://doi.org/10.1007/bf02643852) | Table 4, p. 3, row 67; `ORC-CKWR54AN5V` |  |
| Phase transition | 839 K | 839 | congruent melting: Liquid -> Ni3Pr7; _Liquid: Pr 0.7; Ni3Pr7: Pr 0.7_ | experimental | [3] Rahou 2015; _cites Huang 2005_ [doi](https://doi.org/10.1007/s11669-005-0107-3) | Table 4, p. 3, row 66; `ORC-NIT54GTMR5` |  |
| Phase transition | 1003 K | 1003 | congruent melting: Liquid -> NiPr; _Liquid: Pr 0.5; NiPr: Pr 0.5_ | experimental | [3] Rahou 2015; _cites Vogel 1947_ [doi](https://doi.org/10.1515/ijmr-1947-380401) | Table 4, p. 3, row 61; `ORC-5JSRCBZ5KT` |  |
| Phase transition | 1003 K | 1003 | congruent melting: Liquid -> NiPr; _Liquid: Pr 0.5; NiPr: Pr 0.5_ | experimental | [3] Rahou 2015; _cites Borzone 2001_ [doi](https://doi.org/10.1016/s0925-8388%2800%2901382-7) | Table 4, p. 3, row 64; `ORC-ANUAP6D2KZ` |  |
| Phase transition | 1003 K | 1003 | congruent melting: Liquid -> NiPr; _Liquid: Pr 0.5; NiPr: Pr 0.5_ | experimental | [3] Rahou 2015; _cites Pan 1984_ | Table 4, p. 3, row 62; `ORC-SGWG3WCRGT` |  |
| Phase transition | 1003 K | 1003 | liq. -> NiPr; _L: Pr 0.5_ | unspecified | [2] Du 1999; _cites Pan 1989_ [doi](https://doi.org/10.1007/bf02877506) | Table 8, p. 6, row 14; `ORC-7XXLZ2M3BI` |  |
| Phase transition | 1003 K | 1003 | liq. -> NiPr; _L: Pr 0.5_ | model | [2] Du 1999 | Table 8, p. 6, row 13; `ORC-NINGQODRPJ` |  |
| Phase transition | 1039 K | 1039 | congruent melting: Liquid -> NiPr; _Liquid: Pr 0.5; NiPr: Pr 0.5_ | experimental | [3] Rahou 2015; _cites Colinet 1986_ [doi](https://doi.org/10.1007/bf02643852) | Table 4, p. 3, row 65; `ORC-3WFUFK32Z2` |  |
| Phase transition | 1039 K | 1039 | congruent melting: Liquid -> NiPr; _Liquid: Pr 0.5; NiPr: Pr 0.5_ | experimental | [3] Rahou 2015; _cites Huang 2005_ [doi](https://doi.org/10.1007/s11669-005-0107-3) | Table 4, p. 3, row 63; `ORC-ASJ7FXLJRL` |  |
| Phase transition | 1039 K | 1039 | congruent melting: Liquid -> NiPr; _Liquid: Pr 0.5; NiPr: Pr 0.5_ | model | [3] Rahou 2015 | Table 4, p. 3, row 31; `ORC-RLXFLP5FJM` |  |
| Phase transition | 1638 K | 1638 | congruent melting: Liquid -> Ni5Pr; _Liquid: Pr 0.166667; Ni5Pr: Pr 0.166667_ | experimental | [3] Rahou 2015; _cites Vogel 1947_ [doi](https://doi.org/10.1515/ijmr-1947-380401) | Table 4, p. 3, row 8; `ORC-LKY3JFLMV5` |  |
| Phase transition | 1657 K | 1657 | congruent melting: Liquid -> Ni5Pr; _Liquid: Pr 0.166667; Ni5Pr: Pr 0.166667_ | experimental | [3] Rahou 2015; _cites Borzone 2001_ [doi](https://doi.org/10.1016/s0925-8388%2800%2901382-7) | Table 4, p. 3, row 9; `ORC-F3A75NARMJ` |  |
| Phase transition | 1657 K | 1657 | liq. -> Ni5Pr; _L: Pr 0.1667_ | model | [2] Du 1999 | Table 8, p. 6, row 3; `ORC-OCJIF222BK` |  |
| Phase transition | 1658 K | 1658 | congruent melting: Liquid -> Ni5Pr; _Liquid: Pr 0.166667; Ni5Pr: Pr 0.166667_ | experimental | [3] Rahou 2015; _cites Pan 1984_ | Table 4, p. 3, row 59; `ORC-CXPOXMC4VW` |  |
| Phase transition | 1658 K | 1658 | congruent melting: Liquid -> Ni5Pr; _Liquid: Pr 0.166667; Ni5Pr: Pr 0.166667_ | model | [3] Rahou 2015 | Table 4, p. 3, row 6; `ORC-LO7HQQLMIB` |  |
| Phase transition | 1658 K | 1658 | congruent melting: Liquid -> Ni5Pr; _Liquid: Pr 0.166667; Ni5Pr: Pr 0.166667_ | experimental | [3] Rahou 2015; _cites Colinet 1986_ [doi](https://doi.org/10.1007/bf02643852) | Table 4, p. 3, row 60; `ORC-VFPEGS5JRJ` |  |
| Phase transition | 1658 K | 1658 | liq. -> Ni5Pr; _L: Pr 0.17_ | unspecified | [2] Du 1999; _cites Pan 1989_ [doi](https://doi.org/10.1007/bf02877506) | Table 8, p. 6, row 4; `ORC-4UU6PM47JH` |  |

## Sources

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

1. Mianliang Huang, Thomas A. Lograsso, Experimental investigation and thermodynamic modeling of the Ni–Pr system, Journal of Alloys and Compounds 395, 75-79 (2005). [doi:10.1016/j.jallcom.2004.11.039](https://doi.org/10.1016/j.jallcom.2004.11.039)
2. Zhenmin Du, Donghui Wang, Weijing Zhang, Thermodynamic assessment of the Co–Pr, Er–Ni and Ni–Pr systems, Journal of Alloys and Compounds 284, 206-212 (1999). [doi:10.1016/s0925-8388(98)00928-1](https://doi.org/10.1016/s0925-8388%2898%2900928-1)
3. Z. Rahou, K. Mahdouk, D. Moustain, S. Otmani, S. Kardellass, A. Iddaoudi et al., Thermodynamic reassessment of Ni-Pr binary system, Journal of Alloys and Compounds 620, 204-209 (2015). [doi:10.1016/j.jallcom.2014.09.116](https://doi.org/10.1016/j.jallcom.2014.09.116)

## 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/).