# Ni–Yb system

> Ni–Yb system: 132 accepted literature values (formation 49, invariant reaction 46, crystal structure 22, heat capacity / entropy / enthalpy 9) 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-YB.html · Markdown: https://data.orchid-project.org/systems/NI-YB.md

132 accepted literature values from 2 paper(s) (experimental 56, model 60, DFT 16); 2 calculated phase diagram(s). 9 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-YB.json) · [CSV](https://data.orchid-project.org/systems/NI-YB.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#NI-YB) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#NI-YB/NiYb-16Kar.json) · [phases (10)](https://data.orchid-project.org/phases/pages/NI-YB.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/NI-YB.html) · [Markdown](https://data.orchid-project.org/systems/NI-YB.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 56 |
| model | 60 |
| DFT | 16 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 46 |
| phase transition | 6 |
| formation | 49 |
| heat capacity / entropy / enthalpy | 9 |
| crystal structure | 22 |

## 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 |
|---|---|---|---|
| NiYb-16Kar.tdb | S. Kardellass, C. Servant, N. Selhaoui, J. Thermal Anal. Calorim., 125, 255-69(2016). [doi:10.1007/s10973-016-5380-3](https://doi.org/10.1007/s10973-016-5380-3) | `c5f8035b87babb1b868ece8f6f92185e894fd29ea9199a322bb65b15c1ac99f4` | [viewer](https://orchid-project.org/phase-diagrams/#NI-YB/NiYb-16Kar.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NiYb-16Kar.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NiYb-16Kar.json) |
| NiYb-17Hu.tdb | Y.-J. Hu, Y. Wang, S.A. Firdosy, K.E. Star, J.-P. Fleurial, V.A. Ravi, Z.-K. Liu, Calphad, 59, 207-17(2017). [doi:10.1016/j.calphad.2017.09.004](https://doi.org/10.1016/j.calphad.2017.09.004) | `66e6f1063dad51963f68709a43bd4c7ce703ef5d1702531caaf7632a4c11f84f` | [viewer](https://orchid-project.org/phase-diagrams/#NI-YB/NiYb-17Hu.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NiYb-17Hu.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NiYb-17Hu.json) |

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

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| NiYb-16Kar.tdb | 1488.41 | LIQUID (x(Yb) 0.10151) + NI17YB2 (x(Yb) 0.10526) + NI5YB_D2D (x(Yb) 0.16667) |
| NiYb-16Kar.tdb | 1488.41 | LIQUID (x(Yb) 0.10154) + NI17YB2 (x(Yb) 0.10526) + NI5YB_D2D (x(Yb) 0.16667) |
| NiYb-16Kar.tdb | 1488.41 | LIQUID (x(Yb) 0.1014) + NI17YB2 (x(Yb) 0.10526) + NI5YB_D2D (x(Yb) 0.16667) |
| NiYb-16Kar.tdb | 1458.56 | FCC_A1 (x(Yb) 0) + LIQUID (x(Yb) 0.07118) + NI17YB2 (x(Yb) 0.10526) |
| NiYb-16Kar.tdb | 1458.56 | FCC_A1 (x(Yb) 0) + LIQUID (x(Yb) 0.07117) + NI17YB2 (x(Yb) 0.10526) |
| NiYb-16Kar.tdb | 1458.55 | FCC_A1 (x(Yb) 0) + LIQUID (x(Yb) 0.0713) + NI17YB2 (x(Yb) 0.10526) |
| NiYb-16Kar.tdb | 1458.55 | FCC_A1 (x(Yb) 0) + LIQUID (x(Yb) 0.07127) + NI17YB2 (x(Yb) 0.10526) |
| NiYb-16Kar.tdb | 1406.87 | NI5YB_D2D (x(Yb) 0.16667) + NI3YB (x(Yb) 0.25) + LIQUID (x(Yb) 0.30276) |
| NiYb-16Kar.tdb | 1406.87 | NI5YB_D2D (x(Yb) 0.16667) + NI3YB (x(Yb) 0.25) + LIQUID (x(Yb) 0.30249) |
| NiYb-16Kar.tdb | 1330.53 | NI3YB (x(Yb) 0.25) + NI2YB_C15 (x(Yb) 0.33333) + LIQUID (x(Yb) 0.40551) |
| NiYb-16Kar.tdb | 1330.53 | NI3YB (x(Yb) 0.25) + NI2YB_C15 (x(Yb) 0.33333) + LIQUID (x(Yb) 0.40508) |
| NiYb-16Kar.tdb | 1330.53 | NI3YB (x(Yb) 0.25) + NI2YB_C15 (x(Yb) 0.33333) + LIQUID (x(Yb) 0.40587) |
| NiYb-16Kar.tdb | 1303.41 | NI2YB_C15 (x(Yb) 0.33333) + LIQUID (x(Yb) 0.48307) + NIYB_B27 (x(Yb) 0.5) |
| NiYb-16Kar.tdb | 1303.41 | NI2YB_C15 (x(Yb) 0.33333) + LIQUID (x(Yb) 0.48343) + NIYB_B27 (x(Yb) 0.5) |
| NiYb-16Kar.tdb | 1303.41 | NI2YB_C15 (x(Yb) 0.33333) + LIQUID (x(Yb) 0.48344) + NIYB_B27 (x(Yb) 0.5) |
| NiYb-16Kar.tdb | 1303.37 | NIYB_B27 (x(Yb) 0.5) + LIQUID#2 (x(Yb) 0.52222) + LIQUID (x(Yb) 0.87329) |
| NiYb-16Kar.tdb | 1078.9 | NIYB_B27 (x(Yb) 0.5) + LIQUID (x(Yb) 0.98473) + BCC_A2 (x(Yb) 0.9999) |
| NiYb-16Kar.tdb | 1032.69 | NIYB_B27 (x(Yb) 0.5) + BCC_A2 (x(Yb) 0.99994) + FCC_A1 (x(Yb) 1) |
| NiYb-17Hu.tdb | 1563.88 | NI5YB_D2D (x(Yb) 0.16667) + LIQUID (x(Yb) 0.19153) + NI3YB (x(Yb) 0.25) |
| NiYb-17Hu.tdb | 1526.76 | NI3YB (x(Yb) 0.25) + NI2YB_C15 (x(Yb) 0.33333) + LIQUID (x(Yb) 0.36014) |
| NiYb-17Hu.tdb | 1519.17 | LIQUID (x(Yb) 0.09736) + NI17YB2 (x(Yb) 0.10526) + NI5YB_D2D (x(Yb) 0.16667) |
| NiYb-17Hu.tdb | 1509.96 | FCC_A1 (x(Yb) 2.000e-5) + LIQUID (x(Yb) 0.08043) + NI17YB2 (x(Yb) 0.10526) |
| NiYb-17Hu.tdb | 1295.25 | NIYB_HT (x(Yb) 0.5) + LIQUID (x(Yb) 0.54909) + LIQUID#2 (x(Yb) 0.91754) |
| NiYb-17Hu.tdb | 1277.7 | NIYB_B27 (x(Yb) 0.5) + NIYB_HT (x(Yb) 0.5) + LIQUID (x(Yb) 0.92734) |
| NiYb-17Hu.tdb | 1276.98 | NI2YB_C15 (x(Yb) 0.33333) + LIQUID (x(Yb) 0.45727) + NIYB_B27 (x(Yb) 0.5) |
| NiYb-17Hu.tdb | 1083.7 | NIYB_B27 (x(Yb) 0.5) + LIQUID (x(Yb) 0.98936) + BCC_A2 (x(Yb) 0.99979) |
| NiYb-17Hu.tdb | 1033.55 | NIYB_B27 (x(Yb) 0.5) + FCC_A1 (x(Yb) 0.99976) + BCC_A2 (x(Yb) 0.99986) |

Convex hulls: [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/NI/NI-YB.json) · [CALPHAD hull NiYb-16Kar](https://data.orchid-project.org/hulls/calphad-sgte/NI/NI-YB--NiYb-16Kar.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Ni–Yb system (46)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 1583.15 | congruent melting: Liq -> Ni3Yb | L: Yb 0.25; Ni3Yb: Ni 0.75, Yb 0.25; Liq: Yb 0.25 | experimental | [1] Kardellass 2016; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 5, p. 9, row 13; `ORC-FB7LOIHH6V` |  |
| 1573.15 | congruent melting: Liq -> Ni5Yb | L: Yb 0.166; Ni5Yb: Ni 0.833333, Yb 0.166667; Liq: Yb 0.166 | model | [1] Kardellass 2016; _cites Berezutskii 2014_ [doi](https://doi.org/10.1134/s0036024414090064) | Table 5, p. 9, row 8; `ORC-2OET335YSF` |  |
| 1568.15 | peritectic: Liq + Ni3Yb -> Ni5Yb | L: Yb 0.152; Ni3Yb: Ni 0.75, Yb 0.25; Ni5Yb: Ni 0.833333, Yb 0.166667; Liq: Yb 0.152 | experimental | [1] Kardellass 2016; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 5, p. 9, row 10; `ORC-ZOKZV7LC2J` |  |
| 1568 | peritectic: Liq + YbNi3 -> YbNi5 | YbNi3: Yb 0.25; YbNi5: Yb 0.166667 | experimental | [2] Hu 2017; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 2, p. 24, row 9; `ORC-ACKMBMSWPG` |  |
| 1568 | eutectic: Liq -> YbNi3 + YbNi5 | L: Yb 0.209; YbNi3: Yb 0.25; YbNi5: Yb 0.166667 | model | [2] Hu 2017; _cites Zhu 2016_ [doi](https://doi.org/10.1016/s1003-6326%2816%2964202-4) | Table 2, p. 24, row 10; `ORC-TIORNVWK5P` |  |
| 1566 | eutectic: Liq -> YbNi3 + YbNi5 | L: Yb 0.184; YbNi3: Yb 0.25; YbNi5: Yb 0.166667 | model | [2] Hu 2017 | Table 2, p. 24, row 11; `ORC-JG7ICLPVHR` |  |
| 1550.15 | congruent melting: Liq -> Ni5Yb | L: Yb 0.167; Ni5Yb: Ni 0.833333, Yb 0.166667; Liq: Yb 0.167 | model | [1] Kardellass 2016 | Table 5, p. 9, row 9; `ORC-DFE7T6B7AK` |  |
| 1528.15 | Liq + Ni3Yb -> Ni2Yb | Ni3Yb: Ni 0.75, Yb 0.25; Ni2Yb: Ni 0.666667, Yb 0.333333 | experimental | [1] Kardellass 2016; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 5, p. 9, row 16; `ORC-K2SNCARRM6` |  |
| 1528 | peritectic: Liq + YbNi3 -> YbNi2 | L: Yb 0.343; YbNi3: Yb 0.25; YbNi2: Yb 0.333333 | model | [2] Hu 2017; _cites Zhu 2016_ [doi](https://doi.org/10.1016/s1003-6326%2816%2964202-4) | Table 2, p. 24, row 17; `ORC-2S5XTFVOUP` |  |
| 1528 | peritectic: Liq + YbNi3 -> YbNi2 | YbNi3: Yb 0.25; YbNi2: Yb 0.333333 | experimental | [2] Hu 2017; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 2, p. 24, row 15; `ORC-G5FG57VXNN` |  |
| 1525 | peritectic: Liq + YbNi3 -> YbNi2 | L: Yb 0.364; YbNi3: Yb 0.25; YbNi2: Yb 0.333333 | model | [2] Hu 2017 | Table 2, p. 24, row 18; `ORC-3K2FQXCVOY` |  |
| 1522.15 | monotectic: Top of the monotectic domain | L: Yb 0.675; Liq: Yb 0.675 | model | [1] Kardellass 2016 | Table 5, p. 9, row 32; `ORC-AI74FY5UVQ` |  |
| 1519 | peritectic: Liq + YbNi5 -> Yb2Ni17 | L: Yb 0.097; YbNi5: Yb 0.166667; Yb2Ni17: Yb 0.105263 | model | [2] Hu 2017 | Table 2, p. 24, row 8; `ORC-2QM3AVAPAQ` |  |
| 1518.15 | peritectic: Liq + Ni5Yb -> Ni17Yb2 | L: Yb 0.085; Ni5Yb: Ni 0.833333, Yb 0.166667; Ni17Yb2: Ni 0.894737, Yb 0.105263; Liq: Yb 0.085 | experimental | [1] Kardellass 2016; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 5, p. 9, row 4; `ORC-ATVW4ORDTP` |  |
| 1518.15 | peritectic: Liq + Ni5Yb -> Ni17Yb2 | L: Yb 0.105; Ni5Yb: Ni 0.833333, Yb 0.166667; Ni17Yb2: Ni 0.894737, Yb 0.105263; Liq: Yb 0.105 | model | [1] Kardellass 2016; _cites Berezutskii 2014_ [doi](https://doi.org/10.1134/s0036024414090064) | Table 5, p. 9, row 5; `ORC-TXLU7NPWU4` |  |
| 1518 | peritectic: Liq + YbNi5 -> Yb2Ni17 | YbNi5: Yb 0.166667; Yb2Ni17: Yb 0.105263 | experimental | [2] Hu 2017; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 2, p. 24, row 5; `ORC-3AMJRABFE7` |  |
| 1518 | peritectic: Liq + YbNi5 -> Yb2Ni17 | L: Yb 0.104; YbNi5: Yb 0.166667; Yb2Ni17: Yb 0.105263 | model | [2] Hu 2017; _cites Zhu 2016_ [doi](https://doi.org/10.1016/s1003-6326%2816%2964202-4) | Table 2, p. 24, row 7; `ORC-3UG5PTLFS3` |  |
| 1510 | eutectic: Liq -> fcc_Ni+ Yb2Ni17 | L: Yb 0.085; Yb2Ni17: Yb 0.105263 | model | [2] Hu 2017; _cites Zhu 2016_ [doi](https://doi.org/10.1016/s1003-6326%2816%2964202-4) | Table 2, p. 24, row 3; `ORC-6PYC5B3RID` |  |
| 1510 | eutectic: Liq -> fcc_Ni+ Yb2Ni17 | L: Yb 0.081; Yb2Ni17: Yb 0.105263 | model | [2] Hu 2017 | Table 2, p. 24, row 4; `ORC-YX35E4KHOJ` |  |
| 1503.15 | eutectic: Liq -> fcc_A1 + Ni17Yb2 | L: Yb 0.08; Ni17Yb2: Ni 0.894737, Yb 0.105263; Liq: Yb 0.08 | experimental | [1] Kardellass 2016; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 5, p. 9, row 1; `ORC-2BCJTP645L` |  |
| 1503.15 | monotectic: Top of the monotectic domain | L: Yb 0.75; Liq: Yb 0.75 | model | [1] Kardellass 2016; _cites Berezutskii 2014_ [doi](https://doi.org/10.1134/s0036024414090064) | Table 5, p. 9, row 31; `ORC-3D34PP3WF2` |  |
| 1503 | eutectic: Liq -> fcc_Ni+ Yb2Ni17 | L: Yb 0.075; Yb2Ni17: Yb 0.105263 | experimental | [2] Hu 2017; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 2, p. 24, row 1; `ORC-Y5SCTRK72W` |  |
| 1495.15 | eutectic: Liq -> fcc_A1 + Ni17Yb2 | L: Yb 0.073; Ni17Yb2: Ni 0.894737, Yb 0.105263; Liq: Yb 0.073 | model | [1] Kardellass 2016; _cites Berezutskii 2014_ [doi](https://doi.org/10.1134/s0036024414090064) | Table 5, p. 9, row 2; `ORC-5NJGM2DMOT` |  |
| 1488.15 | peritectic: Liq + Ni5Yb -> Ni17Yb2 | L: Yb 0.107; Ni5Yb: Ni 0.833333, Yb 0.166667; Ni17Yb2: Ni 0.894737, Yb 0.105263; Liq: Yb 0.107 | model | [1] Kardellass 2016 | Table 5, p. 9, row 6; `ORC-LY75R5PDKB` |  |
| 1488 | peritectic: Liq + YbNi5 -> Yb2Ni17 | L: Yb 0.107; YbNi5: Yb 0.166667; Yb2Ni17: Yb 0.105263 | model | [2] Hu 2017; _cites Kardellass 2016_ [doi](https://doi.org/10.1007/s10973-016-5380-3) | Table 2, p. 24, row 6; `ORC-OCTDB7MVWL` |  |
| 1458.15 | eutectic: Liq -> fcc_A1 + Ni17Yb2 | L: Yb 0.072; Ni17Yb2: Ni 0.894737, Yb 0.105263; Liq: Yb 0.072 | model | [1] Kardellass 2016 | Table 5, p. 9, row 3; `ORC-O4OAXSJXQE` |  |
| 1458 | eutectic: Liq -> fcc_Ni+ Yb2Ni17 | L: Yb 0.072; Yb2Ni17: Yb 0.105263 | model | [2] Hu 2017; _cites Kardellass 2016_ [doi](https://doi.org/10.1007/s10973-016-5380-3) | Table 2, p. 24, row 2; `ORC-RZD4HHVK7O` |  |
| 1446.15 | peritectic: Liq + Ni3Yb -> Ni5Yb | L: Yb 0.28; Ni3Yb: Ni 0.75, Yb 0.25; Ni5Yb: Ni 0.833333, Yb 0.166667; Liq: Yb 0.28 | model | [1] Kardellass 2016; _cites Berezutskii 2014_ [doi](https://doi.org/10.1134/s0036024414090064) | Table 5, p. 9, row 11; `ORC-XVRTPQOFSB` |  |
| 1413.15 | peritectic: Liq + Ni3Yb -> Ni5Yb | L: Yb 0.205; Ni3Yb: Ni 0.75, Yb 0.25; Ni5Yb: Ni 0.833333, Yb 0.166667; Liq: Yb 0.205 | model | [1] Kardellass 2016 | Table 5, p. 9, row 12; `ORC-EMNZEM2MKB` |  |
| 1330.15 | peritectic: Liq + Ni3Yb -> Ni2Yb | L: Yb 0.406; Ni3Yb: Ni 0.75, Yb 0.25; Ni2Yb: Ni 0.666667, Yb 0.333333; Liq: Yb 0.406 | model | [1] Kardellass 2016 | Table 5, p. 9, row 18; `ORC-6DOYFWEXEF` |  |
| 1330.15 | peritectic: Liq + Ni3Yb -> Ni2Yb | L: Yb 0.436; Ni3Yb: Ni 0.75, Yb 0.25; Ni2Yb: Ni 0.666667, Yb 0.333333; Liq: Yb 0.436 | model | [1] Kardellass 2016; _cites Berezutskii 2014_ [doi](https://doi.org/10.1134/s0036024414090064) | Table 5, p. 9, row 17; `ORC-KBWAI7UPNN` |  |
| 1330 | peritectic: Liq + YbNi3 -> YbNi2 | L: Yb 0.406; YbNi3: Yb 0.25; YbNi2: Yb 0.333333 | model | [2] Hu 2017; _cites Kardellass 2016_ [doi](https://doi.org/10.1007/s10973-016-5380-3) | Table 2, p. 24, row 16; `ORC-D7XNIO55F2` |  |
| 1308.15 | congruent melting: Liq -> NiYb_HT | L: Yb 0.5; NiYb_HT: Ni 0.5, Yb 0.5; Liq: Yb 0.5 | model | [1] Kardellass 2016; _cites Berezutskii 2014_ [doi](https://doi.org/10.1134/s0036024414090064) | Table 5, p. 9, row 20; `ORC-URJYR3UOBX` |  |
| 1308.15 | congruent melting: Liq -> NiYb_HT | L: Yb 0.5; NiYb_HT: Ni 0.5, Yb 0.5; Liq: Yb 0.5 | experimental | [1] Kardellass 2016; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 5, p. 9, row 19; `ORC-V7JQSBFMBN` |  |
| 1306.15 | eutectic: Liq1# -> Liq2# + NiYb_LT | NiYb_LT: Ni 0.5, Yb 0.5; Liq1: Yb 0.536; Liq2: Yb 0.909 | model | [1] Kardellass 2016; _cites Berezutskii 2014_ [doi](https://doi.org/10.1134/s0036024414090064) | Table 5, p. 9, row 29; `ORC-5XJG3PI2UZ` |  |
| 1303.65 | polymorphic: NiYb_LT -> NiYb_HT | NiYb_LT: Yb 0.5; Liq: Yb 0.5 | model | [1] Kardellass 2016 | Table 5, p. 9, row 27; `ORC-POXQKCBJ6W` |  |
| 1303.15 | eutectic: Ni2Yb + NiYb_LT -> Liq | Ni2Yb: Ni 0.666667, Yb 0.333333; NiYb_LT: Ni 0.5, Yb 0.5; L: Yb 0.482; Liq: Yb 0.482 | model | [1] Kardellass 2016 | Table 5, p. 9, row 24; `ORC-6OXLH7XPEE` |  |
| 1303.15 | eutectic: Liq1# -> Liq2# + NiYb_LT | NiYb_LT: Ni 0.5, Yb 0.5; Liq1: Yb 0.527; Liq2: Yb 0.87 | model | [1] Kardellass 2016 | Table 5, p. 9, row 30; `ORC-72HXQ5DAWQ` |  |
| 1298.15 | eutectic: Liq1# -> Liq2# + NiYb_LT | NiYb_LT: Ni 0.5, Yb 0.5; Liq1: Yb 0.536; Liq2: Yb 0.909 | experimental | [1] Kardellass 2016; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 5, p. 9, row 28; `ORC-X7OUVBS3Y3` |  |
| 1277 | eutectic: Liq -> YbNi2 + α-YbNi | L: Yb 0.457; YbNi2: Yb 0.333333; α-YbNi: Yb 0.5 | model | [2] Hu 2017 | Table 2, p. 24, row 20; `ORC-W7ZNANXRIK` |  |
| 1273.15 | polymorphic: NiYb_LT -> NiYb_HT | NiYb_LT: Ni 0.5, Yb 0.5 | experimental | [1] Kardellass 2016; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 5, p. 9, row 25; `ORC-JV7I2ECFFP` |  |
| 1263.15 | eutectic: Ni2Yb + NiYb_LT -> Liq | Ni2Yb: Ni 0.666667, Yb 0.333333; NiYb_LT: Ni 0.5, Yb 0.5; L: Yb 0.455; Liq: Yb 0.455 | experimental | [1] Kardellass 2016; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 5, p. 9, row 22; `ORC-HQXD5JPIXI` |  |
| 1263 | eutectic: Liq -> YbNi2 + α-YbNi | L: Yb 0.455; YbNi2: Yb 0.333333; α-YbNi: Yb 0.5 | experimental | [2] Hu 2017; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 2, p. 24, row 19; `ORC-ZE7C6PK5OO` |  |
| 1080.15 | eutectic: Liq -> NiYb_LT + fcc_A1 | L: Yb 0.986; NiYb_LT: Ni 0.5, Yb 0.5; Liq: Yb 0.986 | model | [1] Kardellass 2016 | Table 5, p. 9, row 35; `ORC-3EHA7OURO4` |  |
| 1078.15 | eutectic: Liq -> NiYb_LT + fcc_A1 | L: Yb 0.981; NiYb_LT: Ni 0.5, Yb 0.5; Liq: Yb 0.981 | model | [1] Kardellass 2016; _cites Berezutskii 2014_ [doi](https://doi.org/10.1134/s0036024414090064) | Table 5, p. 9, row 34; `ORC-GXX5ZPE7FV` |  |
| 1067.15 | eutectic: Liq -> NiYb_LT + fcc_A1 | L: Yb 0.98; NiYb_LT: Ni 0.5, Yb 0.5; Liq: Yb 0.98 | experimental | [1] Kardellass 2016; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 5, p. 9, row 33; `ORC-BQBSEB7WHC` |  |

## 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, Ni–Yb system (40)

| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---:|---:|---|---:|---:|---|---|---|
| Ni17Yb2 | [Ni17Yb2](https://data.orchid-project.org/compounds/Ni17Yb2.html) | -17 kJ/mol-atom ± 0.1 | 990 | experimental |  | -12.478 (oqmd-30879) | [1] Kardellass 2016; _cites Di 2002_ [doi](https://doi.org/10.1021/jp0142785) | Table 2, p. 5, row 5; `ORC-3NOZAMJ6QA.ec7216` |  |
| Ni17Yb2 | [Ni17Yb2](https://data.orchid-project.org/compounds/Ni17Yb2.html) | -14.8 kJ/mol-atom | 298.15 | experimental |  | -12.478 (oqmd-30879) | [1] Kardellass 2016; _cites Berezutskii 2014_ [doi](https://doi.org/10.1134/s0036024414090064) | Table 2, p. 5, row 4; `ORC-T6WAJSN2ID.b71772` |  |
| Ni17Yb2 | [Ni17Yb2](https://data.orchid-project.org/compounds/Ni17Yb2.html) | -13.9 kJ/mol-atom ± 0.3 | 298.15 | experimental |  | -12.478 (oqmd-30879) | [1] Kardellass 2016; _cites Brutti 2002_ [doi](https://doi.org/10.1361/105497102770332207) | Table 2, p. 5, row 2; `ORC-QE7M3FV2JX.2483a3` |  |
| Ni17Yb2 | [Ni17Yb2](https://data.orchid-project.org/compounds/Ni17Yb2.html) | -13.15 kJ/mol-atom | 298.15 | model |  | -12.478 (oqmd-30879) | [1] Kardellass 2016 | Table 2, p. 5, row 3; `ORC-4KUVCAKG6H.7fd733` |  |
| Ni17Yb2 | [Ni17Yb2](https://data.orchid-project.org/compounds/Ni17Yb2.html) | -13.15 kJ/mol-atom | 298.15 | model |  | -12.478 (oqmd-30879) | [1] Kardellass 2016 | Table 4, p. 7, row 1; `ORC-PRBMETDZP5.66c793` |  |
| Ni17Yb2 | [Ni17Yb2](https://data.orchid-project.org/compounds/Ni17Yb2.html) | -12.7 kJ/mol-atom | 298.15 | model |  | -12.478 (oqmd-30879) | [1] Kardellass 2016; _cites De 1988_ | Table 2, p. 5, row 1; `ORC-MO2BMAX3LJ.9aa63f` |  |
| Ni2Yb | [Ni2Yb](https://data.orchid-project.org/compounds/Ni2Yb.html) | -33.6 kJ/mol-atom | 298.15 | model |  | -38.261 (oqmd-17857) | [1] Kardellass 2016; _cites De 1988_ | Table 2, p. 5, row 15; `ORC-HJU5LZ4HSN.200f67` |  |
| Ni2Yb | [Ni2Yb](https://data.orchid-project.org/compounds/Ni2Yb.html) | -32 kJ/mol-atom ± 4.6 | 298.15 | experimental |  | -38.261 (oqmd-17857) | [1] Kardellass 2016; _cites Brutti 2002_ [doi](https://doi.org/10.1361/105497102770332207) | Table 2, p. 5, row 17; `ORC-2VYYLCJG6B.35b188` |  |
| Ni2Yb | [Ni2Yb](https://data.orchid-project.org/compounds/Ni2Yb.html) | -30 kJ/mol-atom | 298.15 | experimental |  | -38.261 (oqmd-17857) | [1] Kardellass 2016; _cites Brutti 2002_ [doi](https://doi.org/10.1361/105497102770332207) | Table 2, p. 5, row 16; `ORC-5DLLBJSKHU.19c63a` |  |
| Ni2Yb | [Ni2Yb](https://data.orchid-project.org/compounds/Ni2Yb.html) | -23.3 kJ/mol-atom | 298.15 | experimental |  | -38.261 (oqmd-17857) | [1] Kardellass 2016; _cites Berezutskii 2014_ [doi](https://doi.org/10.1134/s0036024414090064) | Table 2, p. 5, row 19; `ORC-ATWHHONLGM.3eeafe` |  |
| Ni2Yb | [Ni2Yb](https://data.orchid-project.org/compounds/Ni2Yb.html) | -22.7 kJ/mol-atom | 298.15 | model |  | -38.261 (oqmd-17857) | [1] Kardellass 2016 | Table 4, p. 7, row 8; `ORC-5PEWL6ZHNP.aaf201` |  |
| Ni2Yb | [Ni2Yb](https://data.orchid-project.org/compounds/Ni2Yb.html) | -22.07 kJ/mol-atom | 298.15 | model |  | -38.261 (oqmd-17857) | [1] Kardellass 2016 | Table 2, p. 5, row 18; `ORC-YMDZIWYML2.fa394a` |  |
| Ni3Yb | [Ni3Yb](https://data.orchid-project.org/compounds/Ni3Yb.html) | -28.8 kJ/mol-atom | 298.15 | model |  | -31.135 (oqmd-30878) | [1] Kardellass 2016; _cites De 1988_ | Table 2, p. 5, row 11; `ORC-VSY47V74SF.4d4f85` |  |
| Ni3Yb | [Ni3Yb](https://data.orchid-project.org/compounds/Ni3Yb.html) | -26 kJ/mol-atom ± 4.8 | 298.15 | experimental |  | -31.135 (oqmd-30878) | [1] Kardellass 2016; _cites Brutti 2002_ [doi](https://doi.org/10.1361/105497102770332207) | Table 2, p. 5, row 12; `ORC-FK52QONVEP.263c23` |  |
| Ni3Yb | [Ni3Yb](https://data.orchid-project.org/compounds/Ni3Yb.html) | -24.8 kJ/mol-atom | 298.15 | experimental |  | -31.135 (oqmd-30878) | [1] Kardellass 2016; _cites Berezutskii 2014_ [doi](https://doi.org/10.1134/s0036024414090064) | Table 2, p. 5, row 14; `ORC-BDP3R2S4AJ.3d02aa` |  |
| Ni3Yb | [Ni3Yb](https://data.orchid-project.org/compounds/Ni3Yb.html) | -23.42 kJ/mol-atom | 298.15 | model |  | -31.135 (oqmd-30878) | [1] Kardellass 2016 | Table 2, p. 5, row 13; `ORC-D5A4A6APNW.5c8221` |  |
| Ni5Yb | [Ni5Yb](https://data.orchid-project.org/compounds/Ni5Yb.html) | -22 kJ/mol-atom | 298.15 | experimental |  | -21.239 (oqmd-17858) | [1] Kardellass 2016; _cites Berezutskii 2014_ [doi](https://doi.org/10.1134/s0036024414090064) | Table 2, p. 5, row 10; `ORC-CROH3CJWUG.cc1425` |  |
| Ni5Yb | [Ni5Yb](https://data.orchid-project.org/compounds/Ni5Yb.html) | -20.9 kJ/mol-atom ± 4.4 | 298.15 | experimental |  | -21.239 (oqmd-17858) | [1] Kardellass 2016; _cites Brutti 2002_ [doi](https://doi.org/10.1361/105497102770332207) | Table 2, p. 5, row 8; `ORC-MAQJCN6KZA.38a97c` |  |
| Ni5Yb | [Ni5Yb](https://data.orchid-project.org/compounds/Ni5Yb.html) | -20.47 kJ/mol-atom | 298.15 | model |  | -21.239 (oqmd-17858) | [1] Kardellass 2016 | Table 2, p. 5, row 9; `ORC-MDOIEI5HRY.bd2665` |  |
| Ni5Yb | [Ni5Yb](https://data.orchid-project.org/compounds/Ni5Yb.html) | -20.47 kJ/mol-atom | 298.15 | model |  | -21.239 (oqmd-17858) | [1] Kardellass 2016 | Table 4, p. 7, row 4; `ORC-ZPWXP65POF.7b87e8` |  |
| Ni5Yb | [Ni5Yb](https://data.orchid-project.org/compounds/Ni5Yb.html) | -20.2 kJ/mol-atom | 298.15 | model |  | -21.239 (oqmd-17858) | [1] Kardellass 2016; _cites De 1988_ | Table 2, p. 5, row 6; `ORC-7J5SQHZXT2.caecf3` |  |
| Ni5Yb | [Ni5Yb](https://data.orchid-project.org/compounds/Ni5Yb.html) | -16.4 kJ/mol-atom | 298.15 | model |  | -21.239 (oqmd-17858) | [1] Kardellass 2016; _cites Bayanov 1973_ | Table 2, p. 5, row 7; `ORC-3RLO4YRFFY.9f3bd5` |  |
| NiYb | [NiYb](https://data.orchid-project.org/compounds/NiYb.html) | -17.28 kJ/mol-atom | 298.15 | model |  | -27.289 (oqmd-30880) | [1] Kardellass 2016 | Table 4, p. 7, row 12; `ORC-4BEL7CKZYD.6df303` |  |
| NiYb_LT | [NiYb](https://data.orchid-project.org/compounds/NiYb.html) | -28 kJ/mol-atom ± 2 | 298.15 | experimental |  | -27.289 (oqmd-30880) | [1] Kardellass 2016; _cites Brutti 2002_ [doi](https://doi.org/10.1361/105497102770332207) | Table 2, p. 5, row 21; `ORC-KQAQJSXIUR.9e9991` |  |
| NiYb_LT | [NiYb](https://data.orchid-project.org/compounds/NiYb.html) | -27.8 kJ/mol-atom | 298.15 | model |  | -27.289 (oqmd-30880) | [1] Kardellass 2016; _cites De 1988_ | Table 2, p. 5, row 20; `ORC-ZLNJYGK6X4.8ce466` |  |
| NiYb_LT | [NiYb](https://data.orchid-project.org/compounds/NiYb.html) | -18.8 kJ/mol-atom | 298.15 | experimental |  | -27.289 (oqmd-30880) | [1] Kardellass 2016; _cites Berezutskii 2014_ [doi](https://doi.org/10.1134/s0036024414090064) | Table 2, p. 5, row 23; `ORC-XIHXMIOGKA.f0a91e` |  |
| NiYb_LT | [NiYb](https://data.orchid-project.org/compounds/NiYb.html) | -17.28 kJ/mol-atom | 298.15 | model |  | -27.289 (oqmd-30880) | [1] Kardellass 2016 | Table 2, p. 5, row 22; `ORC-A6SF6ZB2GP.ec7e29` |  |
| Yb2Ni17 |  | -13.9 unknown ± 0.3 | 298.15 | experimental |  |  | [2] Hu 2017; _cites Buschow 1972_ [doi](https://doi.org/10.1016/0022-5088%2872%2990082-3) | Table 3, p. 26, row 9; `ORC-OT56BOWFTM` |  |
| Yb2Ni17 |  | -12.4 kJ/mol-atom | 0 | DFT |  |  | [2] Hu 2017 | Table 3, p. 26, row 12; `ORC-CWWQ6APNAQ.3dfbb3` |  |
| Yb2Ni17 |  | -12.4 unknown | 0 | DFT |  |  | [2] Hu 2017 | Table 3, p. 26, row 12; `ORC-CWWQ6APNAQ.478709` |  |
| YbNi2 | [Ni2Yb](https://data.orchid-project.org/compounds/Ni2Yb.html) | -37.6 kJ/mol-atom | 298.15 | model |  | -38.261 (oqmd-17857) | [2] Hu 2017 | p. 17; `ORC-IEZCL25UPS` | “The enthalpy of formation of the YbNi2 phase at 298K is predicted to be -37.6 kJ/mol-atom, which is more negative than the experimental values reported by Brutti et al. \[13\], but very close to the lower bound of the measurement uncertainty.” |
| YbNi3 | [Ni3Yb](https://data.orchid-project.org/compounds/Ni3Yb.html) | -30 kJ/mol-atom | 298.15 | experimental |  | -31.135 (oqmd-30878) | [2] Hu 2017; _cites Brutti 2002_ [doi](https://doi.org/10.1361/105497102770332207) | p. 17; `ORC-AYFHA7PT64.a54d62` | “Two preliminary DSC measurements on YbNi3 and YbNi2 have also been mentioned in the work by Brutti et al. \[13\], where the enthalpies of formation at 298K were reported to be around -30 to -32 kJ/mol-atom for YbNi3 and -30 kJ/mol-atom for YbNi2 tentatively, which slightly differ from their KE results.” |
| YbNi3 | [Ni3Yb](https://data.orchid-project.org/compounds/Ni3Yb.html) | -30 kJ/mol-atom | 298.15 | experimental |  | -31.135 (oqmd-30878) | [2] Hu 2017; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 3, p. 26, row 19; `ORC-Y4BW2O3KMU.0da045` |  |
| YbNi3 |  | -30 unknown | 298.15 | experimental |  |  | [2] Hu 2017; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 3, p. 26, row 19; `ORC-Y4BW2O3KMU.6fe863` |  |
| YbNi3 |  | -26 unknown ± 4.8 | 298.15 | experimental |  |  | [2] Hu 2017; _cites Buschow 1972_ [doi](https://doi.org/10.1016/0022-5088%2872%2990082-3) | Table 3, p. 26, row 18; `ORC-35V4MHUDB2` |  |
| YbNi5 |  | -20.9 kJ/mol-atom | 0 | DFT |  |  | [2] Hu 2017 | Table 3, p. 26, row 16; `ORC-REP7RZE7KM.258797` |  |
| YbNi5 |  | -20.9 unknown | 0 | DFT |  |  | [2] Hu 2017 | Table 3, p. 26, row 16; `ORC-REP7RZE7KM.e0d7a8` |  |
| YbNi5 |  | -20.9 unknown ± 4.4 | 298.15 | experimental |  |  | [2] Hu 2017; _cites Buschow 1972_ [doi](https://doi.org/10.1016/0022-5088%2872%2990082-3) | Table 3, p. 26, row 13; `ORC-WDOMC2NNEO` |  |
| α-YbNi |  | -28 unspecified ± 2 | 298.15 | experimental |  |  | [2] Hu 2017; _cites Brutti 2002_ [doi](https://doi.org/10.1361/105497102770332207) | p. 17; `ORC-5LRPGHSEWI.d9b86e` | “Based on Eq. 16, the enthalpy of formation of the α-YbNi phase at 298K is calculated to be -27.2 kJ/mol-atom, a value which agrees well with the recent experimental results from DSC measurements (-28±2.0 kJ/molatom) by Brutti et al. \[13\].” |
| α-YbNi | [NiYb](https://data.orchid-project.org/compounds/NiYb.html) | -27.2 kJ/mol-atom | 298.15 | model |  | -27.289 (oqmd-30880) | [2] Hu 2017 | p. 17; `ORC-5LRPGHSEWI.d985d4` | “Based on Eq. 16, the enthalpy of formation of the α-YbNi phase at 298K is calculated to be -27.2 kJ/mol-atom, a value which agrees well with the recent experimental results from DSC measurements (-28±2.0 kJ/molatom) by Brutti et al. \[13\].” |

## Other properties

### Phase transition (6)

Table: Phase transition, Ni–Yb system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase transition | 1273.15 K | 1273.15 | NiYb | experimental | [1] Kardellass 2016; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | p. 2; `ORC-FBMA66AYTU` | “Thermal analysis by Palenzona and Cirafici \[16\] indicated a transformation in NiYb at 1000 C.” |
| Phase transition | 1304 K | 1304 | congruent melting: Liq -> β-YbNi; _L: Yb 0.5; β-YbNi: Yb 0.5_ | model | [2] Hu 2017 | Table 2, p. 24, row 22; `ORC-CILE2G75IR` |  |
| Phase transition | 1308 K | 1308 | congruent melting: Liq -> β-YbNi; _L: Yb 0.5; β-YbNi: Yb 0.5_ | experimental | [2] Hu 2017; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 2, p. 24, row 21; `ORC-3D76DQ5VDD` |  |
| Phase transition | 1582 K | 1582 | congruent melting: Liq -> YbNi3; _L: Yb 0.25; YbNi3: Yb 0.25_ | model | [2] Hu 2017 | Table 2, p. 24, row 14; `ORC-HAMIQ2HA6A` |  |
| Phase transition | 1583 K | 1583 | congruent melting: Liq -> YbNi3; _L: Yb 0.25; YbNi3: Yb 0.25_ | model | [2] Hu 2017; _cites Zhu 2016_ [doi](https://doi.org/10.1016/s1003-6326%2816%2964202-4) | Table 2, p. 24, row 13; `ORC-JGQ2QIRBYT` |  |
| Phase transition | 1583 K | 1583 | congruent melting: Liq -> YbNi3; _L: Yb 0.25; YbNi3: Yb 0.25_ | experimental | [2] Hu 2017; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 2, p. 24, row 12; `ORC-WH7BFCF6R7` |  |

### Formation (9)

Table: Formation, Ni–Yb system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Entropy of formation; _printed: ΔSf_ | 0.02 J/mol-atom/K | 0 | Yb2Ni17; _alloy: Yb 0.105263_ | DFT | [2] Hu 2017 | Table 3, p. 26, row 23; `ORC-W3GYJNYESA` |  |
| Entropy of formation; _printed: ΔSf_ | 0.84 J/mol-atom/K | 0 | YbNi5; _alloy: Yb 0.166667_ | DFT | [2] Hu 2017 | Table 3, p. 26, row 25; `ORC-EQN4H5NWDU` |  |
| Entropy of formation; _printed: Entropies of formation_ | -2.5 J/mol-atom/K | 298.15 | Ni17Yb2; _alloy: Yb 0.105263_ | experimental | [1] Kardellass 2016; _cites Berezutskii 2014_ [doi](https://doi.org/10.1134/s0036024414090064) | Table 2, p. 5, row 4; `ORC-T6WAJSN2ID.418ed4` |  |
| Entropy of formation; _printed: Entropies of formation_ | -5.3 J/mol-atom/K | 298.15 | Ni2Yb; _alloy: Yb 0.333333_ | experimental | [1] Kardellass 2016; _cites Berezutskii 2014_ [doi](https://doi.org/10.1134/s0036024414090064) | Table 2, p. 5, row 19; `ORC-ATWHHONLGM.d93edb` |  |
| Entropy of formation; _printed: Entropies of formation_ | -6 J/mol-atom/K | 298.15 | Ni3Yb; _alloy: Yb 0.25_ | experimental | [1] Kardellass 2016; _cites Berezutskii 2014_ [doi](https://doi.org/10.1134/s0036024414090064) | Table 2, p. 5, row 14; `ORC-BDP3R2S4AJ.f9968d` |  |
| Entropy of formation; _printed: Entropies of formation_ | -4 J/mol-atom/K | 298.15 | Ni5Yb; _alloy: Yb 0.166667_ | experimental | [1] Kardellass 2016; _cites Berezutskii 2014_ [doi](https://doi.org/10.1134/s0036024414090064) | Table 2, p. 5, row 10; `ORC-CROH3CJWUG.290d14` |  |
| Entropy of formation; _printed: Entropies of formation_ | -4 J/mol-atom/K | 298.15 | NiYb_LT; _alloy: Yb 0.5_ | experimental | [1] Kardellass 2016; _cites Berezutskii 2014_ [doi](https://doi.org/10.1134/s0036024414090064) | Table 2, p. 5, row 23; `ORC-XIHXMIOGKA.09fc75` |  |
| Entropy of formation; _printed: ΔSf_ | -0.86 J/mol-atom/K | 298.15 | YbNi3; _alloy: Yb 0.25_ | experimental | [2] Hu 2017; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 3, p. 26, row 19; `ORC-Y4BW2O3KMU.78d41a` |  |
| Entropy of formation; _printed: Entropies of formation_ | 1.96 J/mol-atom/K ± 0.07 | 990 | Ni17Yb2; _alloy: Yb 0.105263_ | experimental | [1] Kardellass 2016; _cites Di 2002_ [doi](https://doi.org/10.1021/jp0142785) | Table 2, p. 5, row 5; `ORC-3NOZAMJ6QA.aa656c` |  |

### Heat capacity / entropy / enthalpy (9)

Table: Heat capacity / entropy / enthalpy, Ni–Yb system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Entropy; _printed: Entropies of formation_ | 33.33 J/mol-atom/K | 298.15 | Ni17Yb2; _alloy: Yb 0.105263_ | model | [1] Kardellass 2016 | Table 2, p. 5, row 3; `ORC-4KUVCAKG6H.07d5a1` |  |
| Entropy; _printed: Entropies of formation_ | 33.33 J/mol-atom/K | 298.15 | Ni17Yb2; _alloy: Ni 0.894737, Yb 0.105263_ | model | [1] Kardellass 2016 | Table 4, p. 7, row 1; `ORC-PRBMETDZP5.394690` |  |
| Entropy; _printed: Entropies of formation_ | 36.47 J/mol-atom/K | 298.15 | Ni2Yb; _alloy: Ni 0.666667, Yb 0.333333_ | model | [1] Kardellass 2016 | Table 4, p. 7, row 8; `ORC-5PEWL6ZHNP.dab0c7` |  |
| Entropy; _printed: Entropies of formation_ | 36.47 J/mol-atom/K | 298.15 | Ni2Yb; _alloy: Yb 0.333333_ | model | [1] Kardellass 2016 | Table 2, p. 5, row 18; `ORC-YMDZIWYML2.5c9459` |  |
| Entropy; _printed: Entropies of formation_ | 33.98 J/mol-atom/K | 298.15 | Ni3Yb; _alloy: Yb 0.25_ | model | [1] Kardellass 2016 | Table 2, p. 5, row 13; `ORC-D5A4A6APNW.0ff563` |  |
| Entropy; _printed: Entropies of formation_ | 33.5 J/mol-atom/K | 298.15 | Ni5Yb; _alloy: Yb 0.166667_ | model | [1] Kardellass 2016 | Table 2, p. 5, row 9; `ORC-MDOIEI5HRY.1e839f` |  |
| Entropy; _printed: Entropies of formation_ | 33.5 J/mol-atom/K | 298.15 | Ni5Yb; _alloy: Ni 0.833333, Yb 0.166667_ | model | [1] Kardellass 2016 | Table 4, p. 7, row 4; `ORC-ZPWXP65POF.e55181` |  |
| Entropy; _printed: Entropies of formation_ | 42.43 J/mol-atom/K | 298.15 | NiYb; _alloy: Ni 0.5, Yb 0.5_ | model | [1] Kardellass 2016 | Table 4, p. 7, row 12; `ORC-4BEL7CKZYD.a3e0b9` |  |
| Entropy; _printed: Entropies of formation_ | 42.43 J/mol-atom/K | 298.15 | NiYb_LT; _alloy: Yb 0.5_ | model | [1] Kardellass 2016 | Table 2, p. 5, row 22; `ORC-A6SF6ZB2GP.e7e2c1` |  |

### Crystal structure (22)

Table: Crystal structure, Ni–Yb system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Lattice a; _printed: a_ | 8.324 Å | 0 | Yb2Ni17; _alloy: Yb 0.105263_ | DFT | [2] Hu 2017 | Table 3, p. 26, row 12; `ORC-AJIPCICPLF.38cf38` |  |
| Lattice a; _printed: Lattice parameter a_ | 8.302 Å | 0 | Yb2Ni17; _alloy: Yb 0.105263_ | DFT | [2] Hu 2017 | Table 3, p. 26, row 11; `ORC-RV2XADE7KH.57d1e2` |  |
| Lattice a; _printed: Lattice parameter a_ | 4.894 Å | 0 | Yb2Ni7; _alloy: Yb 0.222222_ | DFT | [2] Hu 2017 | Table 3, p. 26, row 17; `ORC-5T77X4FRMK.6e3272` |  |
| Lattice a; _printed: a_ | 4.879 Å | 0 | YbNi5; _alloy: Yb 0.166667_ | DFT | [2] Hu 2017 | Table 3, p. 26, row 15; `ORC-5UKMW5K6D6.3c0fb8` |  |
| Lattice a; _printed: Lattice parameter a_ | 4.899 Å | 0 | YbNi5; _alloy: Yb 0.166667_ | DFT | [2] Hu 2017 | Table 3, p. 26, row 16; `ORC-JNGSWRJAGF.c7737f` |  |
| Lattice a; _printed: a_ | 8.272 Å | 298.15 | Yb2Ni17; _alloy: Yb 0.105263_ | experimental | [2] Hu 2017; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 3, p. 26, row 10; `ORC-KYOMGLHUQX.ac04cd` |  |
| Lattice a; _printed: a_ | 8.28 Å | 298.15 | Yb2Ni17; _alloy: Yb 0.105263_ | experimental | [2] Hu 2017; _cites Buschow 1972_ [doi](https://doi.org/10.1016/0022-5088%2872%2990082-3) | Table 3, p. 26, row 9; `ORC-PMWFOPOIVW.97166d` |  |
| Lattice a; _printed: a_ | 4.919 Å | 298.15 | YbNi3; _alloy: Yb 0.25_ | experimental | [2] Hu 2017; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 3, p. 26, row 19; `ORC-7R6GWRBZFC.9577d3` |  |
| Lattice a; _printed: Lattice parameter a_ | 4.92 Å | 298.15 | YbNi3; _alloy: Yb 0.25_ | experimental | [2] Hu 2017; _cites Buschow 1972_ [doi](https://doi.org/10.1016/0022-5088%2872%2990082-3) | Table 3, p. 26, row 18; `ORC-GWOXR5LP5M.d89e1d` |  |
| Lattice a; _printed: a_ | 4.847 Å | 298.15 | YbNi5; _alloy: Yb 0.166667_ | experimental | [2] Hu 2017; _cites Buschow 1972_ [doi](https://doi.org/10.1016/0022-5088%2872%2990082-3) | Table 3, p. 26, row 13; `ORC-22V4FKY344.092266` |  |
| Lattice a; _printed: a_ | 4.842 Å | 298.15 | YbNi5; _alloy: Yb 0.166667_ | experimental | [2] Hu 2017; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 3, p. 26, row 14; `ORC-ITVYXHVFS2.3e0e14` |  |
| Lattice c; _printed: c_ | 8.064 Å | 0 | Yb2Ni17; _alloy: Yb 0.105263_ | DFT | [2] Hu 2017 | Table 3, p. 26, row 12; `ORC-AJIPCICPLF.5be997` |  |
| Lattice c; _printed: Lattice parameter c_ | 8.043 Å | 0 | Yb2Ni17; _alloy: Yb 0.105263_ | DFT | [2] Hu 2017 | Table 3, p. 26, row 11; `ORC-RV2XADE7KH.109f31` |  |
| Lattice c; _printed: c_ | 35.79 Å | 0 | Yb2Ni7; _alloy: Yb 0.222222_ | DFT | [2] Hu 2017 | Table 3, p. 26, row 17; `ORC-5T77X4FRMK.0c162f` |  |
| Lattice c; _printed: c_ | 3.947 Å | 0 | YbNi5; _alloy: Yb 0.166667_ | DFT | [2] Hu 2017 | Table 3, p. 26, row 15; `ORC-5UKMW5K6D6.615749` |  |
| Lattice c; _printed: c_ | 3.963 Å | 0 | YbNi5; _alloy: Yb 0.166667_ | DFT | [2] Hu 2017 | Table 3, p. 26, row 16; `ORC-JNGSWRJAGF.63e34c` |  |
| Lattice c; _printed: c_ | 8.029 Å | 298.15 | Yb2Ni17; _alloy: Yb 0.105263_ | experimental | [2] Hu 2017; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 3, p. 26, row 10; `ORC-KYOMGLHUQX.1fcf10` |  |
| Lattice c; _printed: c_ | 8.024 Å | 298.15 | Yb2Ni17; _alloy: Yb 0.105263_ | experimental | [2] Hu 2017; _cites Buschow 1972_ [doi](https://doi.org/10.1016/0022-5088%2872%2990082-3) | Table 3, p. 26, row 9; `ORC-PMWFOPOIVW.7ebb08` |  |
| Lattice c; _printed: c_ | 24.14 Å | 298.15 | YbNi3; _alloy: Yb 0.25_ | experimental | [2] Hu 2017; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 3, p. 26, row 19; `ORC-7R6GWRBZFC.06cfb1` |  |
| Lattice c; _printed: Lattice parameter c_ | 24.16 Å | 298.15 | YbNi3; _alloy: Yb 0.25_ | experimental | [2] Hu 2017; _cites Buschow 1972_ [doi](https://doi.org/10.1016/0022-5088%2872%2990082-3) | Table 3, p. 26, row 18; `ORC-GWOXR5LP5M.652b12` |  |
| Lattice c; _printed: c_ | 3.962 Å | 298.15 | YbNi5; _alloy: Yb 0.166667_ | experimental | [2] Hu 2017; _cites Buschow 1972_ [doi](https://doi.org/10.1016/0022-5088%2872%2990082-3) | Table 3, p. 26, row 13; `ORC-22V4FKY344.6b7629` |  |
| Lattice c; _printed: c_ | 3.959 Å | 298.15 | YbNi5; _alloy: Yb 0.166667_ | experimental | [2] Hu 2017; _cites Palenzona 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990188-4) | Table 3, p. 26, row 14; `ORC-ITVYXHVFS2.5b8f8e` |  |

## Sources

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

1. Saïd Kardellass, Colette Servant, Najim Selhaoui, Thermodynamic description of the Ni–Yb and Ni–Eu binary systems, J Therm Anal Calorim 125, 255-269 (2016). [doi:10.1007/s10973-016-5380-3](https://doi.org/10.1007/s10973-016-5380-3)
2. Yong-Jie Hu, Yi Wang, Samad A. Firdosy, Kurt E. Star, Jean-Pierre Fleurial, Vilupanur A. Ravi et al., First-principles calculations and thermodynamic modeling of the Yb-Ni binary system, Calphad 59, 207-217 (2017). [doi:10.1016/j.calphad.2017.09.004](https://doi.org/10.1016/j.calphad.2017.09.004)

## 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/).