# Ce–Ni phases

> Ce–Ni system: 13 phases (tier A 9, tier C 3, liquid 1); 11 stable in a calculated diagram in the ORCHID phase registry, with names, structure type when the stored evidence supports an assignment under the stated tier rules, calculated stability, verbatim TDB PHASE/CONSTITUENT statements and example references.

HTML: https://data.orchid-project.org/phases/pages/CE-NI.html · Markdown: https://data.orchid-project.org/phases/pages/CE-NI.md

13 phases (tier A 9, tier C 3, liquid 1); 11 stable in a calculated diagram. Structure types are assigned only when the stored evidence supports an assignment under the stated tier rules (tier A: standard phase name; tier B: unique Materials Project + OQMD on-hull match, DFT-supported; tier C: one structure stated by the assessment's crystallographic table, assessor-stated); other phases list candidates and are marked needs_review. Stability is from phase diagrams calculated with pycalphad from the SGTE binary collection (evidence class: model).

Data: [interactive registry](https://orchid-project.org/phases/?q=CE-NI) · [full JSON](https://data.orchid-project.org/phases/systems/CE-NI.json) · [Ce–Ni system page](https://data.orchid-project.org/systems/CE-NI.html) · [Markdown](https://data.orchid-project.org/phases/pages/CE-NI.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md)

Table: Phases of the Ce–Ni system (13)

| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---:|---:|
| [BCC_A2](#phase-ce-ni-bcc-a2); _phase:ce-ni:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 974.07–1079.66 K, x(Ni) 0–0.0106 | 5 | 4 |
| [C15_LAVES](#phase-ce-ni-c15-laves); _phase:ce-ni:c15-laves_ | Cu2Mg · C15 · cF24 · Fd-3m (227) | tier A: standard phase name | stable in 3 of 3 calculated diagram(s): 300–1098.67 K, x(Ni) 0.66531–0.66667 | 29 | 3 |
| [CE2NI7](#phase-ce-ni-ce2ni7); _phase:ce-ni:ce2ni7_ | Ce2Ni7 · hP36 · P6_3/mmc (194) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 4 of 4 calculated diagram(s): 300–1353.37 K, x(Ni) 0.77778–0.77778 | 28 | 4 |
| [CE5NI19](#phase-ce-ni-ce5ni19); _phase:ce-ni:ce5ni19_ | Ce5Co19 · hR24 · R-3m (166) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–1393.41 K, x(Ni) 0.79167–0.79167 | 0 | 1 |
| [CE7NI3_D102](#phase-ce-ni-ce7ni3-d102); _phase:ce-ni:ce7ni3-d102_ | Fe3Th7 · D10_2 · hP20 · P6_3mc (186) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 300–798.79 K, x(Ni) 0.3–0.3 | 61 | 4 |
| [CENI_B33](#phase-ce-ni-ceni-b33); _phase:ce-ni:ceni-b33_ | CrB · B33 · oC8 · Cmcm (63) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 300–953.25 K, x(Ni) 0.5–0.5 | 60 | 4 |
| [CENI2_C15](#phase-ce-ni-ceni2-c15); _phase:ce-ni:ceni2-c15_ | Cu2Mg · C15 · cF24 · Fd-3m (227) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1103.3 K, x(Ni) 0.66667–0.66667 | 4 | 1 |
| [CENI3](#phase-ce-ni-ceni3); _phase:ce-ni:ceni3_ | CeNi3 · hP24 · P6_3/mmc (194) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 4 of 4 calculated diagram(s): 300–1228.77 K, x(Ni) 0.75–0.75 | 21 | 4 |
| [CENI5_D2D](#phase-ce-ni-ceni5-d2d); _phase:ce-ni:ceni5-d2d_ | CaCu5 · D2_d · hP6 · P6/mmm (191) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 300–1624.91 K, x(Ni) 0.82148–0.85557 | 31 | 4 |
| [DHCP](#phase-ce-ni-dhcp-a3); _phase:ce-ni:dhcp-a3_ | alpha-La · A3' · hP4 · P6_3/mmc (194) | tier A: standard phase name | not stable in 4 calculated diagram(s) | 0 | 4 |
| [FCC_A1](#phase-ce-ni-fcc-a1); _phase:ce-ni:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 300–2499.92 K, x(Ni) 0–1 | 41 | 4 |
| [HCP_A3](#phase-ce-ni-hcp-a3); _phase:ce-ni:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | not stable in 4 calculated diagram(s) | 0 | 4 |
| [LIQUID](#phase-ce-ni-liquid); _phase:ce-ni:liquid_ | liquid | liquid | stable in 4 of 4 calculated diagram(s): 750.25–2500 K, x(Ni) 0–1 | 139 | 4 |

## BCC_A2 (Ce–Ni)

- Id: `phase:ce-ni:bcc-a2`; status `assigned`
- Structure: W · A2 · cI2 · Im-3m (229); type `st:a2-w-ci2`; tier A: standard phase name; confidence high
- Stability: stable in 4 of 4 calculated diagram(s): 974.07–1079.66 K, x(Ni) 0–0.0106
- Literature: 5 values (5 accepted) from 3 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ce-ni:bcc-a2)

Names (8): _corpus: _corpus:phase:ce-ni:bcc-a2  
_paper: _paper:10.1007/s10853-022-08039-1:bcc(Ce), paper:10.1016/j.intermet.2007.04.004:(δCe), paper:10.1016/j.jallcom.2003.11.157:bcc (Ce)  
_tdb: _tdb:CeNi-04Du-LB.tdb:BCC_A2, tdb:CeNi-04Pal.tdb:BCC_A2, tdb:CeNi-07Xio.tdb:BCC_A2, tdb:CeNi-23Ye.tdb:BCC_A2  


### TDB models of BCC_A2 (4): PHASE and CONSTITUENT statements as written

[CeNi-04Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Du-LB.tdb): BCC_A2, type code %B, sha256 `10912f25bfe16013…`

~~~~text
31: PHASE BCC_A2 %B 2 1 3 !
32: CONST BCC_A2 : CE% NI : VA : !
~~~~

[CeNi-04Pal.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Pal.tdb): BCC_A2, type code %B, sha256 `956d2ab7ccf14a95…`

~~~~text
37: PHASE BCC_A2 %B 2 1 3 !
38: CONST BCC_A2 : CE% NI : VA : !
~~~~

[CeNi-07Xio.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-07Xio.tdb): BCC_A2, type code %B, sha256 `f7e0b20d4833faab…`

~~~~text
34: PHASE BCC_A2 %B 2 1 3 !
35: CONST BCC_A2 : CE% NI : VA : !
~~~~

[CeNi-23Ye.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-23Ye.tdb): BCC_A2, type code %B, sha256 `32b5505deb04e6b8…`

~~~~text
34: PHASE BCC_A2 %B 2 1 3 !
35: CONST BCC_A2 : CE% NI : VA : !
~~~~

Example references (4 of 4; assessments first): 

- [doi:10.1007/s10853-022-08039-1](https://doi.org/10.1007/s10853-022-08039-1) Hongjian Ye, Maohua Rong, Qingrong Yao, Qing Chen, Jiang Wang, Guanghui Rao et al., Phase equilibria and thermodynamic properties in the RE-Ni (RE = rare earth metals) binary systems, J Mater Sci 58, 1260-1292 (2023).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.intermet.2007.04.004](https://doi.org/10.1016/j.intermet.2007.04.004) Wei Xiong, Yong Du, Xiaogang Lu, Julius Clemens Schuster, Hailin Chen, Reassessment of the Ce–Ni binary system supported by key experiments and ab initio calculations, Intermetallics 15, 1401-1408 (2007).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2003.11.157](https://doi.org/10.1016/j.jallcom.2003.11.157) Zhenmin Du, Lisha Yang, Gang Ling, Thermodynamic assessment of the Ce–Ni system, Journal of Alloys and Compounds 375, 186-190 (2004).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.intermet.2004.04.035](https://doi.org/10.1016/j.intermet.2004.04.035) M. Palumbo, G. Borzone, S. Delsante, N. Parodi, G. Cacciamani, R. Ferro et al., Thermodynamic analysis and assessment of the Ce–Ni system, Intermetallics 12, 1367-1372 (2004).  
_assessment that models this phase_

## C15_LAVES (Ce–Ni)

- Id: `phase:ce-ni:c15-laves`; status `assigned`
- Structure: Cu2Mg · C15 · cF24 · Fd-3m (227); type `st:c15-cu2mg-cf24`; tier A: standard phase name; confidence high
- Caveat: partitioned order/disorder model in CeNi-04Pal.tdb also describes the disordered state
- Caveat: partitioned order/disorder model in CeNi-07Xio.tdb also describes the disordered state
- Caveat: partitioned order/disorder model in CeNi-23Ye.tdb also describes the disordered state
- Stability: stable in 3 of 3 calculated diagram(s): 300–1098.67 K, x(Ni) 0.66531–0.66667
- Literature: 29 values (29 accepted) from 3 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ce-ni:c15-laves)

Names (7): _corpus: _corpus:phase:ce-ni:c15-laves  
_paper: _paper:10.1007/s10853-022-08039-1:CeNi2, paper:10.1016/j.intermet.2004.04.035:CeNi2, paper:10.1016/j.intermet.2007.04.004:CeNi2  
_tdb: _tdb:CeNi-04Pal.tdb:C15_LAVES, tdb:CeNi-07Xio.tdb:C15_LAVES, tdb:CeNi-23Ye.tdb:C15_LAVES  


### TDB models of C15_LAVES (3): PHASE and CONSTITUENT statements as written

[CeNi-04Pal.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Pal.tdb): C15_LAVES, type code %, sha256 `956d2ab7ccf14a95…`

~~~~text
62: PHASE C15_LAVES % 2 1 2 !
63: CONST C15_LAVES : CE% NI : CE NI% : !
~~~~

[CeNi-07Xio.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-07Xio.tdb): C15_LAVES, type code %, sha256 `f7e0b20d4833faab…`

~~~~text
59: PHASE C15_LAVES % 2 1 2 !
60: CONST C15_LAVES : CE% NI : CE NI% : !
~~~~

[CeNi-23Ye.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-23Ye.tdb): C15_LAVES, type code %, sha256 `32b5505deb04e6b8…`

~~~~text
59: PHASE C15_LAVES % 2 2 1 !
60: CONST C15_LAVES : CE NI% : CE% NI : !
~~~~

Example references (4 of 4; assessments first): 

- [doi:10.1016/j.intermet.2007.04.004](https://doi.org/10.1016/j.intermet.2007.04.004) Wei Xiong, Yong Du, Xiaogang Lu, Julius Clemens Schuster, Hailin Chen, Reassessment of the Ce–Ni binary system supported by key experiments and ab initio calculations, Intermetallics 15, 1401-1408 (2007).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1007/s10853-022-08039-1](https://doi.org/10.1007/s10853-022-08039-1) Hongjian Ye, Maohua Rong, Qingrong Yao, Qing Chen, Jiang Wang, Guanghui Rao et al., Phase equilibria and thermodynamic properties in the RE-Ni (RE = rare earth metals) binary systems, J Mater Sci 58, 1260-1292 (2023).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.intermet.2004.04.035](https://doi.org/10.1016/j.intermet.2004.04.035) M. Palumbo, G. Borzone, S. Delsante, N. Parodi, G. Cacciamani, R. Ferro et al., Thermodynamic analysis and assessment of the Ce–Ni system, Intermetallics 12, 1367-1372 (2004).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1515/ijmr-1947-380401](https://doi.org/10.1515/ijmr-1947-380401) Vogel R, Iandelli A, Rolla L. Z Metallkd 1947;38:97–103.  
_cited as the source of values for this phase_

## CE2NI7 (Ce–Ni)

- Id: `phase:ce-ni:ce2ni7`; status `assigned`
- Structure: Ce2Ni7 · hP36 · P6_3/mmc (194); type `st:ce2ni7-hp36`; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
- Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) [doi:10.1016/j.calphad.2025.102833](https://doi.org/10.1016/j.calphad.2025.102833)
- Caveat: not certain from the name or DFT alone (mp_oqmd_space_groups_differ, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Ce 0.2222, Ni 0.7778
- Stability: stable in 4 of 4 calculated diagram(s): 300–1353.37 K, x(Ni) 0.77778–0.77778
- Literature: 28 values (28 accepted) from 3 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ce-ni:ce2ni7)

Names (8): _corpus: _corpus:phase:ce-ni:ce2ni7  
_paper: _paper:10.1016/j.intermet.2004.04.035:Ce2Ni7, paper:10.1016/j.intermet.2007.04.004:Ce2Ni7, paper:10.1016/j.jallcom.2003.11.157:Ce2Ni7  
_tdb: _tdb:CeNi-04Du-LB.tdb:CE2NI7, tdb:CeNi-04Pal.tdb:CE2NI7, tdb:CeNi-07Xio.tdb:CE2NI7, tdb:CeNi-23Ye.tdb:CE2NI7  


### TDB models of CE2NI7 (4): PHASE and CONSTITUENT statements as written

[CeNi-04Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Du-LB.tdb): CE2NI7, type code %, sha256 `10912f25bfe16013…`

~~~~text
66: PHASE CE2NI7 % 2 2 7 !
67: CONST CE2NI7 : CE : NI : !
~~~~

[CeNi-04Pal.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Pal.tdb): CE2NI7, type code %, sha256 `956d2ab7ccf14a95…`

~~~~text
72: PHASE CE2NI7 % 2 2 7 !
73: CONST CE2NI7 : CE : NI : !
~~~~

[CeNi-07Xio.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-07Xio.tdb): CE2NI7, type code %, sha256 `f7e0b20d4833faab…`

~~~~text
69: PHASE CE2NI7 % 2 2 7 !
70: CONST CE2NI7 : CE : NI : !
~~~~

[CeNi-23Ye.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-23Ye.tdb): CE2NI7, type code %, sha256 `32b5505deb04e6b8…`

~~~~text
69: PHASE CE2NI7 % 2 2 7 !
70: CONST CE2NI7 : CE : NI : !
~~~~

Example references (6 of 6; assessments first): 

- [doi:10.1016/j.intermet.2007.04.004](https://doi.org/10.1016/j.intermet.2007.04.004) Wei Xiong, Yong Du, Xiaogang Lu, Julius Clemens Schuster, Hailin Chen, Reassessment of the Ce–Ni binary system supported by key experiments and ab initio calculations, Intermetallics 15, 1401-1408 (2007).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.intermet.2004.04.035](https://doi.org/10.1016/j.intermet.2004.04.035) M. Palumbo, G. Borzone, S. Delsante, N. Parodi, G. Cacciamani, R. Ferro et al., Thermodynamic analysis and assessment of the Ce–Ni system, Intermetallics 12, 1367-1372 (2004).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2003.11.157](https://doi.org/10.1016/j.jallcom.2003.11.157) Zhenmin Du, Lisha Yang, Gang Ling, Thermodynamic assessment of the Ce–Ni system, Journal of Alloys and Compounds 375, 186-190 (2004).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/s10853-022-08039-1](https://doi.org/10.1007/s10853-022-08039-1) Hongjian Ye, Maohua Rong, Qingrong Yao, Qing Chen, Jiang Wang, Guanghui Rao et al., Phase equilibria and thermodynamic properties in the RE-Ni (RE = rare earth metals) binary systems, J Mater Sci 58, 1260-1292 (2023).  
_assessment that models this phase_
- [doi:10.1515/ijmr-1947-380401](https://doi.org/10.1515/ijmr-1947-380401) Vogel R, Iandelli A, Rolla L. Z Metallkd 1947;38:97–103.  
_cited as the source of values for this phase_
- [doi:10.2473/shigentosozai.110.95](https://doi.org/10.2473/shigentosozai.110.95) Deog-Yung KIM, Makoto OHTSUKA, Kimio ITAGAKI, Study on Reactive Diffusion in Ni-RE(RE=Ce,Pr,Nd) Binary Alloys., Shigen-to-Sozai(journal of the Mining and Materials Processing Institute of Japan) 110, 95-101 (1994).  
_cited as the source of values for this phase_

## CE5NI19 (Ce–Ni)

- Id: `phase:ce-ni:ce5ni19`; status `assigned`
- Structure: Ce5Co19 · hR24 · R-3m (166); type `st:ce5co19-hr24`; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
- Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) [doi:10.1016/j.calphad.2025.102833](https://doi.org/10.1016/j.calphad.2025.102833)
- Caveat: not certain from the name or DFT alone (no_on_hull_entry_in_both, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Ce 0.2083, Ni 0.7917
- Stability: stable in 1 of 1 calculated diagram(s): 300–1393.41 K, x(Ni) 0.79167–0.79167
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ce-ni:ce5ni19)

Names (2): _corpus: _corpus:phase:ce-ni:ce5ni19  
_tdb: _tdb:CeNi-23Ye.tdb:CE5NI19  


### TDB models of CE5NI19 (1): PHASE and CONSTITUENT statements as written

[CeNi-23Ye.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-23Ye.tdb): CE5NI19, type code %, sha256 `32b5505deb04e6b8…`

~~~~text
74: PHASE CE5NI19 % 2 5 19 !
75: CONST CE5NI19 : CE : NI : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1007/s10853-022-08039-1](https://doi.org/10.1007/s10853-022-08039-1) Hongjian Ye, Maohua Rong, Qingrong Yao, Qing Chen, Jiang Wang, Guanghui Rao et al., Phase equilibria and thermodynamic properties in the RE-Ni (RE = rare earth metals) binary systems, J Mater Sci 58, 1260-1292 (2023).  
_assessment that models this phase_

## CE7NI3_D102 (Ce–Ni)

- Id: `phase:ce-ni:ce7ni3-d102`; status `assigned`
- Structure: Fe3Th7 · D10_2 · hP20 · P6_3mc (186); type `st:d10-2-fe3th7-hp20`; tier A: standard phase name; confidence high
- Stoichiometry: Ce 0.7000, Ni 0.3000
- Stability: stable in 4 of 4 calculated diagram(s): 300–798.79 K, x(Ni) 0.3–0.3
- Literature: 61 values (61 accepted) from 4 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ce-ni:ce7ni3-d102)

Names (9): _corpus: _corpus:phase:ce-ni:ce7ni3-d102  
_paper: _paper:10.1007/s10853-022-08039-1:Ce7Ni3, paper:10.1016/j.intermet.2004.04.035:Ce7Ni3, paper:10.1016/j.intermet.2007.04.004:Ce7Ni3, paper:10.1016/j.jallcom.2003.11.157:Ce7Ni3  
_tdb: _tdb:CeNi-04Du-LB.tdb:CE7NI3_D102, tdb:CeNi-04Pal.tdb:CE7NI3_D102, tdb:CeNi-07Xio.tdb:CE7NI3_D102, tdb:CeNi-23Ye.tdb:CE7NI3_D102  


### TDB models of CE7NI3_D102 (4): PHASE and CONSTITUENT statements as written

[CeNi-04Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Du-LB.tdb): CE7NI3_D102, type code %, sha256 `10912f25bfe16013…`

~~~~text
46: PHASE CE7NI3_D102 % 2 7 3 !
47: CONST CE7NI3_D102 : CE : NI : !
~~~~

[CeNi-04Pal.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Pal.tdb): CE7NI3_D102, type code %, sha256 `956d2ab7ccf14a95…`

~~~~text
52: PHASE CE7NI3_D102 % 2 7 3 !
53: CONST CE7NI3_D102 : CE : NI : !
~~~~

[CeNi-07Xio.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-07Xio.tdb): CE7NI3_D102, type code %, sha256 `f7e0b20d4833faab…`

~~~~text
49: PHASE CE7NI3_D102 % 2 7 3 !
50: CONST CE7NI3_D102 : CE : NI : !
~~~~

[CeNi-23Ye.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-23Ye.tdb): CE7NI3_D102, type code %, sha256 `32b5505deb04e6b8…`

~~~~text
49: PHASE CE7NI3_D102 % 2 7 3 !
50: CONST CE7NI3_D102 : CE : NI : !
~~~~

Example references (5 of 5; assessments first): 

- [doi:10.1007/s10853-022-08039-1](https://doi.org/10.1007/s10853-022-08039-1) Hongjian Ye, Maohua Rong, Qingrong Yao, Qing Chen, Jiang Wang, Guanghui Rao et al., Phase equilibria and thermodynamic properties in the RE-Ni (RE = rare earth metals) binary systems, J Mater Sci 58, 1260-1292 (2023).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.intermet.2007.04.004](https://doi.org/10.1016/j.intermet.2007.04.004) Wei Xiong, Yong Du, Xiaogang Lu, Julius Clemens Schuster, Hailin Chen, Reassessment of the Ce–Ni binary system supported by key experiments and ab initio calculations, Intermetallics 15, 1401-1408 (2007).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.intermet.2004.04.035](https://doi.org/10.1016/j.intermet.2004.04.035) M. Palumbo, G. Borzone, S. Delsante, N. Parodi, G. Cacciamani, R. Ferro et al., Thermodynamic analysis and assessment of the Ce–Ni system, Intermetallics 12, 1367-1372 (2004).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2003.11.157](https://doi.org/10.1016/j.jallcom.2003.11.157) Zhenmin Du, Lisha Yang, Gang Ling, Thermodynamic assessment of the Ce–Ni system, Journal of Alloys and Compounds 375, 186-190 (2004).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1515/ijmr-1947-380401](https://doi.org/10.1515/ijmr-1947-380401) Vogel R, Iandelli A, Rolla L. Z Metallkd 1947;38:97–103.  
_cited as the source of values for this phase_

## CENI_B33 (Ce–Ni)

- Id: `phase:ce-ni:ceni-b33`; status `assigned`
- Structure: CrB · B33 · oC8 · Cmcm (63); type `st:b33-crb-oc8`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaaabfiy and oqmd-19828, space group 63
- Stoichiometry: Ce 0.5000, Ni 0.5000
- Stability: stable in 4 of 4 calculated diagram(s): 300–953.25 K, x(Ni) 0.5–0.5
- Literature: 60 values (60 accepted) from 4 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ce-ni:ceni-b33)

Names (11): _corpus: _corpus:phase:ce-ni:ceni-b33  
_mp: _mp:mp-aaaabfiy  
_oqmd: _oqmd:oqmd-19828  
_paper: _paper:10.1007/s10853-022-08039-1:CeNi, paper:10.1016/j.intermet.2004.04.035:CeNi, paper:10.1016/j.intermet.2007.04.004:CeNi, paper:10.1016/j.jallcom.2003.11.157:CeNi  
_tdb: _tdb:CeNi-04Du-LB.tdb:CENI_B33, tdb:CeNi-04Pal.tdb:CENI_B33, tdb:CeNi-07Xio.tdb:CENI_B33, tdb:CeNi-23Ye.tdb:CENI_B33  


### TDB models of CENI_B33 (4): PHASE and CONSTITUENT statements as written

[CeNi-04Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Du-LB.tdb): CENI_B33, type code %, sha256 `10912f25bfe16013…`

~~~~text
51: PHASE CENI_B33 % 2 1 1 !
52: CONST CENI_B33 : CE : NI : !
~~~~

[CeNi-04Pal.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Pal.tdb): CENI_B33, type code %, sha256 `956d2ab7ccf14a95…`

~~~~text
57: PHASE CENI_B33 % 2 1 1 !
58: CONST CENI_B33 : CE : NI : !
~~~~

[CeNi-07Xio.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-07Xio.tdb): CENI_B33, type code %, sha256 `f7e0b20d4833faab…`

~~~~text
54: PHASE CENI_B33 % 2 1 1 !
55: CONST CENI_B33 : CE : NI : !
~~~~

[CeNi-23Ye.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-23Ye.tdb): CENI_B33, type code %, sha256 `32b5505deb04e6b8…`

~~~~text
54: PHASE CENI_B33 % 2 1 1 !
55: CONST CENI_B33 : CE : NI : !
~~~~

Example references (5 of 5; assessments first): 

- [doi:10.1007/s10853-022-08039-1](https://doi.org/10.1007/s10853-022-08039-1) Hongjian Ye, Maohua Rong, Qingrong Yao, Qing Chen, Jiang Wang, Guanghui Rao et al., Phase equilibria and thermodynamic properties in the RE-Ni (RE = rare earth metals) binary systems, J Mater Sci 58, 1260-1292 (2023).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.intermet.2007.04.004](https://doi.org/10.1016/j.intermet.2007.04.004) Wei Xiong, Yong Du, Xiaogang Lu, Julius Clemens Schuster, Hailin Chen, Reassessment of the Ce–Ni binary system supported by key experiments and ab initio calculations, Intermetallics 15, 1401-1408 (2007).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.intermet.2004.04.035](https://doi.org/10.1016/j.intermet.2004.04.035) M. Palumbo, G. Borzone, S. Delsante, N. Parodi, G. Cacciamani, R. Ferro et al., Thermodynamic analysis and assessment of the Ce–Ni system, Intermetallics 12, 1367-1372 (2004).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2003.11.157](https://doi.org/10.1016/j.jallcom.2003.11.157) Zhenmin Du, Lisha Yang, Gang Ling, Thermodynamic assessment of the Ce–Ni system, Journal of Alloys and Compounds 375, 186-190 (2004).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1515/ijmr-1947-380401](https://doi.org/10.1515/ijmr-1947-380401) Vogel R, Iandelli A, Rolla L. Z Metallkd 1947;38:97–103.  
_cited as the source of values for this phase_

## CENI2_C15 (Ce–Ni)

- Id: `phase:ce-ni:ceni2-c15`; status `assigned`
- Structure: Cu2Mg · C15 · cF24 · Fd-3m (227); type `st:c15-cu2mg-cf24`; tier A: standard phase name; confidence high
- Stoichiometry: Ce 0.3333, Ni 0.6667
- Stability: stable in 1 of 1 calculated diagram(s): 300–1103.3 K, x(Ni) 0.66667–0.66667
- Literature: 4 values (4 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ce-ni:ceni2-c15)

Names (3): _corpus: _corpus:phase:ce-ni:ceni2-c15  
_paper: _paper:10.1016/j.jallcom.2003.11.157:CeNi2  
_tdb: _tdb:CeNi-04Du-LB.tdb:CENI2_C15  


### TDB models of CENI2_C15 (1): PHASE and CONSTITUENT statements as written

[CeNi-04Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Du-LB.tdb): CENI2_C15, type code %, sha256 `10912f25bfe16013…`

~~~~text
56: PHASE CENI2_C15 % 2 1 2 !
57: CONST CENI2_C15 : CE : NI : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.jallcom.2003.11.157](https://doi.org/10.1016/j.jallcom.2003.11.157) Zhenmin Du, Lisha Yang, Gang Ling, Thermodynamic assessment of the Ce–Ni system, Journal of Alloys and Compounds 375, 186-190 (2004).  
_assessment that models this phase; reports values for this phase_

## CENI3 (Ce–Ni)

- Id: `phase:ce-ni:ceni3`; status `assigned`
- Structure: CeNi3 · hP24 · P6_3/mmc (194); type `st:ceni3-hp24`; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
- Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) [doi:10.1016/j.calphad.2025.102833](https://doi.org/10.1016/j.calphad.2025.102833)
- Caveat: not certain from the name or DFT alone (mp_oqmd_space_groups_differ, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Ce 0.2500, Ni 0.7500
- Stability: stable in 4 of 4 calculated diagram(s): 300–1228.77 K, x(Ni) 0.75–0.75
- Literature: 21 values (21 accepted) from 3 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ce-ni:ceni3)

Names (8): _corpus: _corpus:phase:ce-ni:ceni3  
_paper: _paper:10.1016/j.intermet.2004.04.035:CeNi3, paper:10.1016/j.intermet.2007.04.004:CeNi3, paper:10.1016/j.jallcom.2003.11.157:CeNi3  
_tdb: _tdb:CeNi-04Du-LB.tdb:CENI3, tdb:CeNi-04Pal.tdb:CENI3, tdb:CeNi-07Xio.tdb:CENI3, tdb:CeNi-23Ye.tdb:CENI3  


### TDB models of CENI3 (4): PHASE and CONSTITUENT statements as written

[CeNi-04Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Du-LB.tdb): CENI3, type code %, sha256 `10912f25bfe16013…`

~~~~text
61: PHASE CENI3 % 2 1 3 !
62: CONST CENI3 : CE : NI : !
~~~~

[CeNi-04Pal.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Pal.tdb): CENI3, type code %, sha256 `956d2ab7ccf14a95…`

~~~~text
67: PHASE CENI3 % 2 1 3 !
68: CONST CENI3 : CE : NI : !
~~~~

[CeNi-07Xio.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-07Xio.tdb): CENI3, type code %, sha256 `f7e0b20d4833faab…`

~~~~text
64: PHASE CENI3 % 2 1 3 !
65: CONST CENI3 : CE : NI : !
~~~~

[CeNi-23Ye.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-23Ye.tdb): CENI3, type code %, sha256 `32b5505deb04e6b8…`

~~~~text
64: PHASE CENI3 % 2 1 3 !
65: CONST CENI3 : CE : NI : !
~~~~

Example references (5 of 5; assessments first): 

- [doi:10.1016/j.intermet.2007.04.004](https://doi.org/10.1016/j.intermet.2007.04.004) Wei Xiong, Yong Du, Xiaogang Lu, Julius Clemens Schuster, Hailin Chen, Reassessment of the Ce–Ni binary system supported by key experiments and ab initio calculations, Intermetallics 15, 1401-1408 (2007).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.intermet.2004.04.035](https://doi.org/10.1016/j.intermet.2004.04.035) M. Palumbo, G. Borzone, S. Delsante, N. Parodi, G. Cacciamani, R. Ferro et al., Thermodynamic analysis and assessment of the Ce–Ni system, Intermetallics 12, 1367-1372 (2004).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2003.11.157](https://doi.org/10.1016/j.jallcom.2003.11.157) Zhenmin Du, Lisha Yang, Gang Ling, Thermodynamic assessment of the Ce–Ni system, Journal of Alloys and Compounds 375, 186-190 (2004).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/s10853-022-08039-1](https://doi.org/10.1007/s10853-022-08039-1) Hongjian Ye, Maohua Rong, Qingrong Yao, Qing Chen, Jiang Wang, Guanghui Rao et al., Phase equilibria and thermodynamic properties in the RE-Ni (RE = rare earth metals) binary systems, J Mater Sci 58, 1260-1292 (2023).  
_assessment that models this phase_
- [doi:10.1515/ijmr-1947-380401](https://doi.org/10.1515/ijmr-1947-380401) Vogel R, Iandelli A, Rolla L. Z Metallkd 1947;38:97–103.  
_cited as the source of values for this phase_

## CENI5_D2D (Ce–Ni)

- Id: `phase:ce-ni:ceni5-d2d`; status `assigned`
- Structure: CaCu5 · D2_d · hP6 · P6/mmm (191); type `st:d2-d-cacu5-hp6`; tier A: standard phase name; confidence high
- Caveat: partitioned order/disorder model in CeNi-07Xio.tdb also describes the disordered state
- Caveat: partitioned order/disorder model in CeNi-23Ye.tdb also describes the disordered state
- Stability: stable in 4 of 4 calculated diagram(s): 300–1624.91 K, x(Ni) 0.82148–0.85557
- Literature: 31 values (31 accepted) from 3 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ce-ni:ceni5-d2d)

Names (8): _corpus: _corpus:phase:ce-ni:ceni5-d2d  
_paper: _paper:10.1016/j.intermet.2004.04.035:CeNi5, paper:10.1016/j.intermet.2007.04.004:CeNi5, paper:10.1016/j.jallcom.2003.11.157:CeNi5  
_tdb: _tdb:CeNi-04Du-LB.tdb:CENI5_D2D, tdb:CeNi-04Pal.tdb:CENI5_D2D, tdb:CeNi-07Xio.tdb:CENI5_D2D, tdb:CeNi-23Ye.tdb:CENI5_D2D  


### TDB models of CENI5_D2D (4): PHASE and CONSTITUENT statements as written

[CeNi-04Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Du-LB.tdb): CENI5_D2D, type code %, sha256 `10912f25bfe16013…`

~~~~text
71: PHASE CENI5_D2D % 2 1 5 !
72: CONST CENI5_D2D : CE : NI : !
~~~~

[CeNi-04Pal.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Pal.tdb): CENI5_D2D, type code %, sha256 `956d2ab7ccf14a95…`

~~~~text
77: PHASE CENI5_D2D % 2 1 5 !
78: CONST CENI5_D2D : CE : NI : !
~~~~

[CeNi-07Xio.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-07Xio.tdb): CENI5_D2D, type code %, sha256 `f7e0b20d4833faab…`

~~~~text
74: PHASE CENI5_D2D % 2 1 5 !
75: CONST CENI5_D2D : CE% NI : CE NI% : !
~~~~

[CeNi-23Ye.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-23Ye.tdb): CENI5_D2D, type code %, sha256 `32b5505deb04e6b8…`

~~~~text
79: PHASE CENI5_D2D % 2 1 5 !
80: CONST CENI5_D2D : CE% NI : CE NI% : !
~~~~

Example references (6 of 6; assessments first): 

- [doi:10.1016/j.intermet.2007.04.004](https://doi.org/10.1016/j.intermet.2007.04.004) Wei Xiong, Yong Du, Xiaogang Lu, Julius Clemens Schuster, Hailin Chen, Reassessment of the Ce–Ni binary system supported by key experiments and ab initio calculations, Intermetallics 15, 1401-1408 (2007).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.intermet.2004.04.035](https://doi.org/10.1016/j.intermet.2004.04.035) M. Palumbo, G. Borzone, S. Delsante, N. Parodi, G. Cacciamani, R. Ferro et al., Thermodynamic analysis and assessment of the Ce–Ni system, Intermetallics 12, 1367-1372 (2004).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2003.11.157](https://doi.org/10.1016/j.jallcom.2003.11.157) Zhenmin Du, Lisha Yang, Gang Ling, Thermodynamic assessment of the Ce–Ni system, Journal of Alloys and Compounds 375, 186-190 (2004).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/s10853-022-08039-1](https://doi.org/10.1007/s10853-022-08039-1) Hongjian Ye, Maohua Rong, Qingrong Yao, Qing Chen, Jiang Wang, Guanghui Rao et al., Phase equilibria and thermodynamic properties in the RE-Ni (RE = rare earth metals) binary systems, J Mater Sci 58, 1260-1292 (2023).  
_assessment that models this phase_
- [doi:10.1515/ijmr-1947-380401](https://doi.org/10.1515/ijmr-1947-380401) Vogel R, Iandelli A, Rolla L. Z Metallkd 1947;38:97–103.  
_cited as the source of values for this phase_
- [doi:10.2473/shigentosozai.110.95](https://doi.org/10.2473/shigentosozai.110.95) Deog-Yung KIM, Makoto OHTSUKA, Kimio ITAGAKI, Study on Reactive Diffusion in Ni-RE(RE=Ce,Pr,Nd) Binary Alloys., Shigen-to-Sozai(journal of the Mining and Materials Processing Institute of Japan) 110, 95-101 (1994).  
_cited as the source of values for this phase_

## DHCP (Ce–Ni)

- Id: `phase:ce-ni:dhcp-a3`; status `assigned`
- Structure: alpha-La · A3' · hP4 · P6_3/mmc (194); type `st:a3-alpha-la-hp4`; tier A: standard phase name; confidence high
- Stoichiometry: Ce 1.0000
- Stability: not stable in 4 calculated diagram(s)
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ce-ni:dhcp-a3)

Names (5): _corpus: _corpus:phase:ce-ni:dhcp-a3  
_tdb: _tdb:CeNi-04Du-LB.tdb:DHCP, tdb:CeNi-04Pal.tdb:DHCP, tdb:CeNi-07Xio.tdb:DHCP, tdb:CeNi-23Ye.tdb:DHCP  


### TDB models of DHCP (4): PHASE and CONSTITUENT statements as written

[CeNi-04Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Du-LB.tdb): DHCP, type code %A, sha256 `10912f25bfe16013…`

~~~~text
41: PHASE DHCP %A 2 1 0.5 !
42: CONST DHCP : CE : VA : !
~~~~

[CeNi-04Pal.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Pal.tdb): DHCP, type code %A, sha256 `956d2ab7ccf14a95…`

~~~~text
47: PHASE DHCP %A 2 1 0.5 !
48: CONST DHCP : CE : VA : !
~~~~

[CeNi-07Xio.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-07Xio.tdb): DHCP, type code %A, sha256 `f7e0b20d4833faab…`

~~~~text
44: PHASE DHCP %A 2 1 0.5 !
45: CONST DHCP : CE : VA : !
~~~~

[CeNi-23Ye.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-23Ye.tdb): DHCP, type code %A, sha256 `32b5505deb04e6b8…`

~~~~text
44: PHASE DHCP %A 2 1 0.5 !
45: CONST DHCP : CE : VA : !
~~~~

Example references (4 of 4; assessments first): 

- [doi:10.1007/s10853-022-08039-1](https://doi.org/10.1007/s10853-022-08039-1) Hongjian Ye, Maohua Rong, Qingrong Yao, Qing Chen, Jiang Wang, Guanghui Rao et al., Phase equilibria and thermodynamic properties in the RE-Ni (RE = rare earth metals) binary systems, J Mater Sci 58, 1260-1292 (2023).  
_assessment that models this phase_
- [doi:10.1016/j.intermet.2004.04.035](https://doi.org/10.1016/j.intermet.2004.04.035) M. Palumbo, G. Borzone, S. Delsante, N. Parodi, G. Cacciamani, R. Ferro et al., Thermodynamic analysis and assessment of the Ce–Ni system, Intermetallics 12, 1367-1372 (2004).  
_assessment that models this phase_
- [doi:10.1016/j.intermet.2007.04.004](https://doi.org/10.1016/j.intermet.2007.04.004) Wei Xiong, Yong Du, Xiaogang Lu, Julius Clemens Schuster, Hailin Chen, Reassessment of the Ce–Ni binary system supported by key experiments and ab initio calculations, Intermetallics 15, 1401-1408 (2007).  
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2003.11.157](https://doi.org/10.1016/j.jallcom.2003.11.157) Zhenmin Du, Lisha Yang, Gang Ling, Thermodynamic assessment of the Ce–Ni system, Journal of Alloys and Compounds 375, 186-190 (2004).  
_assessment that models this phase_

## FCC_A1 (Ce–Ni)

- Id: `phase:ce-ni:fcc-a1`; status `assigned`
- Structure: Cu · A1 · cF4 · Fm-3m (225); type `st:a1-cu-cf4`; tier A: standard phase name; confidence high
- Stability: stable in 4 of 4 calculated diagram(s): 300–2499.92 K, x(Ni) 0–1
- Literature: 41 values (41 accepted) from 4 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ce-ni:fcc-a1)

Names (12): _corpus: _corpus:phase:ce-ni:fcc-a1  
_paper: _paper:10.1007/s10853-022-08039-1:fcc(Ce), paper:10.1016/j.intermet.2004.04.035:Ni, paper:10.1016/j.intermet.2004.04.035:γCe, paper:10.1016/j.intermet.2007.04.004:(Ni), paper:10.1016/j.intermet.2007.04.004:(γCe), paper:10.1016/j.jallcom.2003.11.157:fcc (Ce), paper:10.1016/j.jallcom.2003.11.157:fcc (Ni)  
_tdb: _tdb:CeNi-04Du-LB.tdb:FCC_A1, tdb:CeNi-04Pal.tdb:FCC_A1, tdb:CeNi-07Xio.tdb:FCC_A1, tdb:CeNi-23Ye.tdb:FCC_A1  


### TDB models of FCC_A1 (4): PHASE and CONSTITUENT statements as written

[CeNi-04Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Du-LB.tdb): FCC_A1, type code %A, sha256 `10912f25bfe16013…`

~~~~text
26: PHASE FCC_A1 %A 2 1 1 !
27: CONST FCC_A1 : CE% NI% : VA : !
~~~~

[CeNi-04Pal.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Pal.tdb): FCC_A1, type code %A, sha256 `956d2ab7ccf14a95…`

~~~~text
32: PHASE FCC_A1 %A 2 1 1 !
33: CONST FCC_A1 : CE% NI% : VA : !
~~~~

[CeNi-07Xio.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-07Xio.tdb): FCC_A1, type code %A, sha256 `f7e0b20d4833faab…`

~~~~text
29: PHASE FCC_A1 %A 2 1 1 !
30: CONST FCC_A1 : CE% NI% : VA : !
~~~~

[CeNi-23Ye.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-23Ye.tdb): FCC_A1, type code %A, sha256 `32b5505deb04e6b8…`

~~~~text
29: PHASE FCC_A1 %A 2 1 1 !
30: CONST FCC_A1 : CE% NI% : VA : !
~~~~

Example references (6 of 6; assessments first): 

- [doi:10.1016/j.intermet.2007.04.004](https://doi.org/10.1016/j.intermet.2007.04.004) Wei Xiong, Yong Du, Xiaogang Lu, Julius Clemens Schuster, Hailin Chen, Reassessment of the Ce–Ni binary system supported by key experiments and ab initio calculations, Intermetallics 15, 1401-1408 (2007).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1007/s10853-022-08039-1](https://doi.org/10.1007/s10853-022-08039-1) Hongjian Ye, Maohua Rong, Qingrong Yao, Qing Chen, Jiang Wang, Guanghui Rao et al., Phase equilibria and thermodynamic properties in the RE-Ni (RE = rare earth metals) binary systems, J Mater Sci 58, 1260-1292 (2023).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.intermet.2004.04.035](https://doi.org/10.1016/j.intermet.2004.04.035) M. Palumbo, G. Borzone, S. Delsante, N. Parodi, G. Cacciamani, R. Ferro et al., Thermodynamic analysis and assessment of the Ce–Ni system, Intermetallics 12, 1367-1372 (2004).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2003.11.157](https://doi.org/10.1016/j.jallcom.2003.11.157) Zhenmin Du, Lisha Yang, Gang Ling, Thermodynamic assessment of the Ce–Ni system, Journal of Alloys and Compounds 375, 186-190 (2004).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1515/ijmr-1947-380401](https://doi.org/10.1515/ijmr-1947-380401) Vogel R, Iandelli A, Rolla L. Z Metallkd 1947;38:97–103.  
_cited as the source of values for this phase_
- [doi:10.2473/shigentosozai.110.95](https://doi.org/10.2473/shigentosozai.110.95) Deog-Yung KIM, Makoto OHTSUKA, Kimio ITAGAKI, Study on Reactive Diffusion in Ni-RE(RE=Ce,Pr,Nd) Binary Alloys., Shigen-to-Sozai(journal of the Mining and Materials Processing Institute of Japan) 110, 95-101 (1994).  
_cited as the source of values for this phase_

## HCP_A3 (Ce–Ni)

- Id: `phase:ce-ni:hcp-a3`; status `assigned`
- Structure: Mg · A3 · hP2 · P6_3/mmc (194); type `st:a3-mg-hp2`; tier A: standard phase name; confidence high
- Stability: not stable in 4 calculated diagram(s)
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ce-ni:hcp-a3)

Names (5): _corpus: _corpus:phase:ce-ni:hcp-a3  
_tdb: _tdb:CeNi-04Du-LB.tdb:HCP_A3, tdb:CeNi-04Pal.tdb:HCP_A3, tdb:CeNi-07Xio.tdb:HCP_A3, tdb:CeNi-23Ye.tdb:HCP_A3  


### TDB models of HCP_A3 (4): PHASE and CONSTITUENT statements as written

[CeNi-04Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Du-LB.tdb): HCP_A3, type code %A, sha256 `10912f25bfe16013…`

~~~~text
36: PHASE HCP_A3 %A 2 1 0.5 !
37: CONST HCP_A3 : CE NI : VA : !
~~~~

[CeNi-04Pal.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Pal.tdb): HCP_A3, type code %A, sha256 `956d2ab7ccf14a95…`

~~~~text
42: PHASE HCP_A3 %A 2 1 0.5 !
43: CONST HCP_A3 : CE NI : VA : !
~~~~

[CeNi-07Xio.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-07Xio.tdb): HCP_A3, type code %A, sha256 `f7e0b20d4833faab…`

~~~~text
39: PHASE HCP_A3 %A 2 1 0.5 !
40: CONST HCP_A3 : CE NI : VA : !
~~~~

[CeNi-23Ye.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-23Ye.tdb): HCP_A3, type code %A, sha256 `32b5505deb04e6b8…`

~~~~text
39: PHASE HCP_A3 %A 2 1 0.5 !
40: CONST HCP_A3 : CE NI : VA : !
~~~~

Example references (4 of 4; assessments first): 

- [doi:10.1007/s10853-022-08039-1](https://doi.org/10.1007/s10853-022-08039-1) Hongjian Ye, Maohua Rong, Qingrong Yao, Qing Chen, Jiang Wang, Guanghui Rao et al., Phase equilibria and thermodynamic properties in the RE-Ni (RE = rare earth metals) binary systems, J Mater Sci 58, 1260-1292 (2023).  
_assessment that models this phase_
- [doi:10.1016/j.intermet.2004.04.035](https://doi.org/10.1016/j.intermet.2004.04.035) M. Palumbo, G. Borzone, S. Delsante, N. Parodi, G. Cacciamani, R. Ferro et al., Thermodynamic analysis and assessment of the Ce–Ni system, Intermetallics 12, 1367-1372 (2004).  
_assessment that models this phase_
- [doi:10.1016/j.intermet.2007.04.004](https://doi.org/10.1016/j.intermet.2007.04.004) Wei Xiong, Yong Du, Xiaogang Lu, Julius Clemens Schuster, Hailin Chen, Reassessment of the Ce–Ni binary system supported by key experiments and ab initio calculations, Intermetallics 15, 1401-1408 (2007).  
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2003.11.157](https://doi.org/10.1016/j.jallcom.2003.11.157) Zhenmin Du, Lisha Yang, Gang Ling, Thermodynamic assessment of the Ce–Ni system, Journal of Alloys and Compounds 375, 186-190 (2004).  
_assessment that models this phase_

## LIQUID (Ce–Ni)

- Id: `phase:ce-ni:liquid`; status `assigned`
- Structure: liquid; type `st:liquid`; liquid; confidence high
- Stability: stable in 4 of 4 calculated diagram(s): 750.25–2500 K, x(Ni) 0–1
- Literature: 139 values (139 accepted) from 4 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ce-ni:liquid)

Names (9): _corpus: _corpus:phase:ce-ni:liquid  
_paper: _paper:10.1007/s10853-022-08039-1:L, paper:10.1016/j.intermet.2004.04.035:L, paper:10.1016/j.intermet.2007.04.004:L, paper:10.1016/j.jallcom.2003.11.157:liquid  
_tdb: _tdb:CeNi-04Du-LB.tdb:LIQUID, tdb:CeNi-04Pal.tdb:LIQUID, tdb:CeNi-07Xio.tdb:LIQUID, tdb:CeNi-23Ye.tdb:LIQUID  


### TDB models of LIQUID (4): PHASE and CONSTITUENT statements as written

[CeNi-04Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Du-LB.tdb): LIQUID, type code %, sha256 `10912f25bfe16013…`

~~~~text
21: PHASE LIQUID:L % 1 1 !
22: CONST LIQUID:L : CE NI : !
~~~~

[CeNi-04Pal.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-04Pal.tdb): LIQUID, type code %, sha256 `956d2ab7ccf14a95…`

~~~~text
27: PHASE LIQUID:L % 1 1 !
28: CONST LIQUID:L : CE NI : !
~~~~

[CeNi-07Xio.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-07Xio.tdb): LIQUID, type code %, sha256 `f7e0b20d4833faab…`

~~~~text
24: PHASE LIQUID:L % 1 1 !
25: CONST LIQUID:L : CE NI : !
~~~~

[CeNi-23Ye.tdb](https://orchid-project.org/data/databases/sgte-binary/CeNi-23Ye.tdb): LIQUID, type code %, sha256 `32b5505deb04e6b8…`

~~~~text
24: PHASE LIQUID:L % 1 1 !
25: CONST LIQUID:L : CE NI : !
~~~~

Example references (6 of 6; assessments first): 

- [doi:10.1016/j.intermet.2007.04.004](https://doi.org/10.1016/j.intermet.2007.04.004) Wei Xiong, Yong Du, Xiaogang Lu, Julius Clemens Schuster, Hailin Chen, Reassessment of the Ce–Ni binary system supported by key experiments and ab initio calculations, Intermetallics 15, 1401-1408 (2007).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1007/s10853-022-08039-1](https://doi.org/10.1007/s10853-022-08039-1) Hongjian Ye, Maohua Rong, Qingrong Yao, Qing Chen, Jiang Wang, Guanghui Rao et al., Phase equilibria and thermodynamic properties in the RE-Ni (RE = rare earth metals) binary systems, J Mater Sci 58, 1260-1292 (2023).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.intermet.2004.04.035](https://doi.org/10.1016/j.intermet.2004.04.035) M. Palumbo, G. Borzone, S. Delsante, N. Parodi, G. Cacciamani, R. Ferro et al., Thermodynamic analysis and assessment of the Ce–Ni system, Intermetallics 12, 1367-1372 (2004).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2003.11.157](https://doi.org/10.1016/j.jallcom.2003.11.157) Zhenmin Du, Lisha Yang, Gang Ling, Thermodynamic assessment of the Ce–Ni system, Journal of Alloys and Compounds 375, 186-190 (2004).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1515/ijmr-1947-380401](https://doi.org/10.1515/ijmr-1947-380401) Vogel R, Iandelli A, Rolla L. Z Metallkd 1947;38:97–103.  
_cited as the source of values for this phase_
- [doi:10.2473/shigentosozai.110.95](https://doi.org/10.2473/shigentosozai.110.95) Deog-Yung KIM, Makoto OHTSUKA, Kimio ITAGAKI, Study on Reactive Diffusion in Ni-RE(RE=Ce,Pr,Nd) Binary Alloys., Shigen-to-Sozai(journal of the Mining and Materials Processing Institute of Japan) 110, 95-101 (1994).  
_cited as the source of values for this phase_

## Please cite

- R. Arróyave, J. Saal, D. Shin, ORCHID-Registry: phase registry of binary systems (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735970
- 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 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); the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work).

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_phase_registry_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Registry: phase registry of binary systems}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735970},
  url       = {https://doi.org/10.5281/zenodo.23735970},
  note      = {Version 1, machine-extracted}
}

@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 the ORCHID phase registry and the sources named on the page (TDB assessments, Hallstedt 2025, Materials Project, OQMD). TDB statements are quoted as written; parameter expressions are not reproduced. Field reference: [SCHEMA.md](https://data.orchid-project.org/phases/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt).