# Ni–Y phases

> Ni–Y system: 13 phases (tier A 6, tier C 4, liquid 1, needs_review 2); 13 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/NI-Y.html · Markdown: https://data.orchid-project.org/phases/pages/NI-Y.md

13 phases (tier A 6, tier C 4, liquid 1, needs_review 2); 13 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=NI-Y) · [full JSON](https://data.orchid-project.org/phases/systems/NI-Y.json) · [Ni–Y system page](https://data.orchid-project.org/systems/NI-Y.html) · [Markdown](https://data.orchid-project.org/phases/pages/NI-Y.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md)

Table: Phases of the Ni–Y system (13)

| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---:|---:|
| [BCC_A2](#phase-ni-y-bcc-a2); _phase:ni-y:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 5 of 5 calculated diagram(s): 1750.95–2499.9 K, x(Y) 0.99926–1 | 0 | 5 |
| [FCC_A1](#phase-ni-y-fcc-a1); _phase:ni-y:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | stable in 5 of 5 calculated diagram(s): 300–1753.83 K, x(Y) 0–0.00309 | 0 | 5 |
| [HCP_A3](#phase-ni-y-hcp-a3); _phase:ni-y:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | stable in 5 of 5 calculated diagram(s): 300–1751.15 K, x(Y) 0.99793–1 | 0 | 5 |
| [LIQUID](#phase-ni-y-liquid); _phase:ni-y:liquid_ | liquid | liquid | stable in 5 of 5 calculated diagram(s): 1078.02–2500 K, x(Y) 0–1 | 0 | 5 |
| [NI17Y2](#phase-ni-y-ni17y2); _phase:ni-y:ni17y2_ |  | needs_review | stable in 5 of 5 calculated diagram(s): 300–1702.75 K, x(Y) 0.10526–0.16667 | 0 | 5 |
| [NI2Y](#phase-ni-y-ni2y); _phase:ni-y:ni2y_ | Ni2Tm · cF192 · F-43m (216) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 5 of 5 calculated diagram(s): 300–1379.04 K, x(Y) 0.33333–0.33333 | 0 | 5 |
| [NI2Y3](#phase-ni-y-ni2y3); _phase:ni-y:ni2y3_ | Ni2Y3 · tP80 · P4_12_12 (92) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 5 of 5 calculated diagram(s): 300–1098.36 K, x(Y) 0.6–0.6 | 0 | 5 |
| [NI3Y](#phase-ni-y-ni3y); _phase:ni-y:ni3y_ | Ni3Pu · hR12 · R-3m (166) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 5 of 5 calculated diagram(s): 300–1509.61 K, x(Y) 0.25–0.25 | 0 | 5 |
| [NI4Y](#phase-ni-y-ni4y); _phase:ni-y:ni4y_ |  | needs_review | stable in 5 of 5 calculated diagram(s): 300–1613.47 K, x(Y) 0.2–0.2 | 0 | 5 |
| [NI5Y_D2D](#phase-ni-y-ni5y-d2d); _phase:ni-y:ni5y-d2d_ | CaCu5 · D2_d · hP6 · P6/mmm (191) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 300–1702.76 K, x(Y) 0.16667–0.16667 | 0 | 4 |
| [NI7Y2](#phase-ni-y-ni7y2); _phase:ni-y:ni7y2_ | Ce2Ni7 · hP36 · P6_3/mmc (194) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 5 of 5 calculated diagram(s): 300–1570.49 K, x(Y) 0.22222–0.22222 | 0 | 5 |
| [NIY_B27](#phase-ni-y-niy-b27); _phase:ni-y:niy-b27_ | FeB · B27 · oP8 · Pnma (62) | tier A: standard phase name | stable in 5 of 5 calculated diagram(s): 300–1344.05 K, x(Y) 0.5–0.5 | 0 | 5 |
| [NIY3_D011](#phase-ni-y-niy3-d011); _phase:ni-y:niy3-d011_ | Fe3C · D0_11 · oP16 · Pnma (62) | tier A: standard phase name | stable in 5 of 5 calculated diagram(s): 300–1180 K, x(Y) 0.75–0.75 | 0 | 5 |

## BCC_A2 (Ni–Y)

- Id: `phase:ni-y: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 5 of 5 calculated diagram(s): 1750.95–2499.9 K, x(Y) 0.99926–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-y:bcc-a2)

Names (6): _corpus: _corpus:phase:ni-y:bcc-a2  
_tdb: _tdb:NiY-05Du.tdb:BCC_A2, tdb:NiY-15Hua.tdb:BCC_A2, tdb:NiY-21Wan.tdb:BCC_A2, tdb:NiY-96Du-LB.tdb:BCC_A2, tdb:NiY-96Du-orig.tdb:BCC_A2  


### TDB models of BCC_A2 (5): PHASE and CONSTITUENT statements as written

[NiY-05Du.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-05Du.tdb): BCC_A2, type code %B, sha256 `bbdd62ff4a5e36e0…`

~~~~text
38: PHASE BCC_A2 %B 2 1 3 !
39: CONST BCC_A2 : NI Y% : VA : !
~~~~

[NiY-15Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-15Hua.tdb): BCC_A2, type code %B, sha256 `dc9a8bc028e96db6…`

~~~~text
36: PHASE BCC_A2 %B 2 1 3 !
37: CONST BCC_A2 : NI Y% : VA : !
~~~~

[NiY-21Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-21Wan.tdb): BCC_A2, type code %B, sha256 `e22ecaca9278345e…`

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

[NiY-96Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-LB.tdb): BCC_A2, type code %B, sha256 `72e391ce92b82a89…`

~~~~text
41: PHASE BCC_A2 %B 2 1 3 !
42: CONST BCC_A2 : NI Y% : VA : !
~~~~

[NiY-96Du-orig.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-orig.tdb): BCC_A2, type code %B, sha256 `60a9de8a7a15712d…`

~~~~text
42: PHASE BCC_A2 %B 2 1 3 !
43: CONST BCC_A2 : NI Y% : VA : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1007/s11669-015-0390-6](https://doi.org/10.1007/s11669-015-0390-6) Jiapeng Huang, Bin Yang, Huiming Chen, Hang Wang, Thermodynamic Optimisation of the Ni-Al-Y Ternary System, J. Phase Equilib. Diffus. 36, 357-365 (2015).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2020.102214](https://doi.org/10.1016/j.calphad.2020.102214) Y. Wang, M. Ostrowska, G. Cacciamani, Calphad, 72, 102214(2021).  
_assessment that models this phase_
- [doi:10.1016/S0925-8388(96)02436-X](https://doi.org/10.1016/S0925-8388%2896%2902436-X) Z. Du, W. Zhang, J. Alloys Compd., 245, 164-67(1996).  
_assessment that models this phase_

## FCC_A1 (Ni–Y)

- Id: `phase:ni-y: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 5 of 5 calculated diagram(s): 300–1753.83 K, x(Y) 0–0.00309
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-y:fcc-a1)

Names (6): _corpus: _corpus:phase:ni-y:fcc-a1  
_tdb: _tdb:NiY-05Du.tdb:FCC_A1, tdb:NiY-15Hua.tdb:FCC_A1, tdb:NiY-21Wan.tdb:FCC_A1, tdb:NiY-96Du-LB.tdb:FCC_A1, tdb:NiY-96Du-orig.tdb:FCC_A1  


### TDB models of FCC_A1 (5): PHASE and CONSTITUENT statements as written

[NiY-05Du.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-05Du.tdb): FCC_A1, type code %A, sha256 `bbdd62ff4a5e36e0…`

~~~~text
33: PHASE FCC_A1 %A 2 1 1 !
34: CONST FCC_A1 : NI% Y : VA : !
~~~~

[NiY-15Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-15Hua.tdb): FCC_A1, type code %A, sha256 `dc9a8bc028e96db6…`

~~~~text
31: PHASE FCC_A1 %A 2 1 1 !
32: CONST FCC_A1 : NI% Y : VA : !
~~~~

[NiY-21Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-21Wan.tdb): FCC_A1, type code %A, sha256 `e22ecaca9278345e…`

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

[NiY-96Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-LB.tdb): FCC_A1, type code %A, sha256 `72e391ce92b82a89…`

~~~~text
36: PHASE FCC_A1 %A 2 1 1 !
37: CONST FCC_A1 : NI% Y : VA : !
~~~~

[NiY-96Du-orig.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-orig.tdb): FCC_A1, type code %A, sha256 `60a9de8a7a15712d…`

~~~~text
37: PHASE FCC_A1 %A 2 1 1 !
38: CONST FCC_A1 : NI% Y : VA : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1007/s11669-015-0390-6](https://doi.org/10.1007/s11669-015-0390-6) Jiapeng Huang, Bin Yang, Huiming Chen, Hang Wang, Thermodynamic Optimisation of the Ni-Al-Y Ternary System, J. Phase Equilib. Diffus. 36, 357-365 (2015).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2020.102214](https://doi.org/10.1016/j.calphad.2020.102214) Y. Wang, M. Ostrowska, G. Cacciamani, Calphad, 72, 102214(2021).  
_assessment that models this phase_
- [doi:10.1016/S0925-8388(96)02436-X](https://doi.org/10.1016/S0925-8388%2896%2902436-X) Z. Du, W. Zhang, J. Alloys Compd., 245, 164-67(1996).  
_assessment that models this phase_

## HCP_A3 (Ni–Y)

- Id: `phase:ni-y: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: stable in 5 of 5 calculated diagram(s): 300–1751.15 K, x(Y) 0.99793–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-y:hcp-a3)

Names (6): _corpus: _corpus:phase:ni-y:hcp-a3  
_tdb: _tdb:NiY-05Du.tdb:HCP_A3, tdb:NiY-15Hua.tdb:HCP_A3, tdb:NiY-21Wan.tdb:HCP_A3, tdb:NiY-96Du-LB.tdb:HCP_A3, tdb:NiY-96Du-orig.tdb:HCP_A3  


### TDB models of HCP_A3 (5): PHASE and CONSTITUENT statements as written

[NiY-05Du.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-05Du.tdb): HCP_A3, type code %A, sha256 `bbdd62ff4a5e36e0…`

~~~~text
43: PHASE HCP_A3 %A 2 1 0.5 !
44: CONST HCP_A3 : NI Y% : VA : !
~~~~

[NiY-15Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-15Hua.tdb): HCP_A3, type code %A, sha256 `dc9a8bc028e96db6…`

~~~~text
41: PHASE HCP_A3 %A 2 1 0.5 !
42: CONST HCP_A3 : NI Y% : VA : !
~~~~

[NiY-21Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-21Wan.tdb): HCP_A3, type code %A, sha256 `e22ecaca9278345e…`

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

[NiY-96Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-LB.tdb): HCP_A3, type code %A, sha256 `72e391ce92b82a89…`

~~~~text
46: PHASE HCP_A3 %A 2 1 0.5 !
47: CONST HCP_A3 : NI Y% : VA : !
~~~~

[NiY-96Du-orig.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-orig.tdb): HCP_A3, type code %A, sha256 `60a9de8a7a15712d…`

~~~~text
47: PHASE HCP_A3 %A 2 1 0.5 !
48: CONST HCP_A3 : NI Y% : VA : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1007/s11669-015-0390-6](https://doi.org/10.1007/s11669-015-0390-6) Jiapeng Huang, Bin Yang, Huiming Chen, Hang Wang, Thermodynamic Optimisation of the Ni-Al-Y Ternary System, J. Phase Equilib. Diffus. 36, 357-365 (2015).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2020.102214](https://doi.org/10.1016/j.calphad.2020.102214) Y. Wang, M. Ostrowska, G. Cacciamani, Calphad, 72, 102214(2021).  
_assessment that models this phase_
- [doi:10.1016/S0925-8388(96)02436-X](https://doi.org/10.1016/S0925-8388%2896%2902436-X) Z. Du, W. Zhang, J. Alloys Compd., 245, 164-67(1996).  
_assessment that models this phase_

## LIQUID (Ni–Y)

- Id: `phase:ni-y:liquid`; status `assigned`
- Structure: liquid; type `st:liquid`; liquid; confidence high
- Stability: stable in 5 of 5 calculated diagram(s): 1078.02–2500 K, x(Y) 0–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-y:liquid)

Names (6): _corpus: _corpus:phase:ni-y:liquid  
_tdb: _tdb:NiY-05Du.tdb:LIQUID, tdb:NiY-15Hua.tdb:LIQUID, tdb:NiY-21Wan.tdb:LIQUID, tdb:NiY-96Du-LB.tdb:LIQUID, tdb:NiY-96Du-orig.tdb:LIQUID  


### TDB models of LIQUID (5): PHASE and CONSTITUENT statements as written

[NiY-05Du.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-05Du.tdb): LIQUID, type code %, sha256 `bbdd62ff4a5e36e0…`

~~~~text
28: PHASE LIQUID:L % 1 1 !
29: CONST LIQUID:L : NI Y : !
~~~~

[NiY-15Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-15Hua.tdb): LIQUID, type code %, sha256 `dc9a8bc028e96db6…`

~~~~text
26: PHASE LIQUID:L % 1 1 !
27: CONST LIQUID:L : NI Y : !
~~~~

[NiY-21Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-21Wan.tdb): LIQUID, type code %, sha256 `e22ecaca9278345e…`

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

[NiY-96Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-LB.tdb): LIQUID, type code %, sha256 `72e391ce92b82a89…`

~~~~text
31: PHASE LIQUID:L % 1 1 !
32: CONST LIQUID:L : NI Y : !
~~~~

[NiY-96Du-orig.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-orig.tdb): LIQUID, type code %, sha256 `60a9de8a7a15712d…`

~~~~text
32: PHASE LIQUID:L % 1 1 !
33: CONST LIQUID:L : NI Y : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1007/s11669-015-0390-6](https://doi.org/10.1007/s11669-015-0390-6) Jiapeng Huang, Bin Yang, Huiming Chen, Hang Wang, Thermodynamic Optimisation of the Ni-Al-Y Ternary System, J. Phase Equilib. Diffus. 36, 357-365 (2015).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2020.102214](https://doi.org/10.1016/j.calphad.2020.102214) Y. Wang, M. Ostrowska, G. Cacciamani, Calphad, 72, 102214(2021).  
_assessment that models this phase_
- [doi:10.1016/S0925-8388(96)02436-X](https://doi.org/10.1016/S0925-8388%2896%2902436-X) Z. Du, W. Zhang, J. Alloys Compd., 245, 164-67(1996).  
_assessment that models this phase_

## NI17Y2 (Ni–Y)

- Id: `phase:ni-y:ni17y2`; status `needs_review`
- No structure assigned. Why: no_structure_token; off_stoichiometric_model; sgte_mmc2_rows_disagree
- Candidate (dft_mp): P6/mmm (191) — on-hull MP YNi5 at x(Y)=0.1667
- Candidate (dft_oqmd): P6/mmm (191) — on-hull OQMD Ni5 Y1 at x(Y)=0.1667
- Candidate (sgte_mmc2): CaCu5 · D2_d · hP6 · P6/mmm (191) — Hallstedt 2025 mmc2 row for NI17Y2: Ni5Y, see also Fe17Lu2
- Candidate (sgte_mmc2): Ni17Th2 · hP38 · P6_3/mmc (194) — Hallstedt 2025 mmc2 row for NI17Y2: Ni17Y2
- Candidate (sgte_mmc2): Ni17Th2 · hP38 · P6_3/mmc (194) — Hallstedt 2025 mmc2 row for NI17Y2: Ni17Y2 (see also CaCu5)
- Candidate (tdb_comment): CaCu5 · hP6 · P6/mmm, D2_d — NiY-05Du.tdb: 'Prototype CaCu5 (hP6, P6/mmm, D2_d), Ni5Y'
- Candidate (tdb_comment): Ni17Th2 · hP38 · P6_3/mmc — NiY-05Du.tdb: 'Prototype Ni17Th2 (hP38, P6_3/mmc), Ni17Y2'
- Candidate (tdb_comment): Ni17Th2 · hP38 · P6_3/mmc — NiY-15Hua.tdb: 'Prototype Ni17Th2 (hP38, P6_3/mmc)'
- Stability: stable in 5 of 5 calculated diagram(s): 300–1702.75 K, x(Y) 0.10526–0.16667
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-y:ni17y2)

Names (6): _corpus: _corpus:phase:ni-y:ni17y2  
_tdb: _tdb:NiY-05Du.tdb:NI17Y2, tdb:NiY-15Hua.tdb:NI17Y2, tdb:NiY-21Wan.tdb:NI17Y2, tdb:NiY-96Du-LB.tdb:NI17Y2, tdb:NiY-96Du-orig.tdb:NI17Y2  


### TDB models of NI17Y2 (5): PHASE and CONSTITUENT statements as written

[NiY-05Du.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-05Du.tdb): NI17Y2, type code %A, sha256 `bbdd62ff4a5e36e0…`

~~~~text
49: PHASE NI17Y2 %A 3 1 2 15 !
50: CONST NI17Y2 : NI2 Y : Y : NI : !
~~~~

[NiY-15Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-15Hua.tdb): NI17Y2, type code %, sha256 `dc9a8bc028e96db6…`

~~~~text
46: PHASE NI17Y2 % 2 17 2 !
47: CONST NI17Y2 : NI : Y : !
~~~~

[NiY-21Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-21Wan.tdb): NI17Y2, type code %, sha256 `e22ecaca9278345e…`

~~~~text
47: PHASE NI17Y2 % 3 1 2 15 !
48: CONST NI17Y2 : NI2 Y : Y : NI : !
~~~~

[NiY-96Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-LB.tdb): NI17Y2, type code %, sha256 `72e391ce92b82a89…`

~~~~text
51: PHASE NI17Y2 % 2 17 2 !
52: CONST NI17Y2 : NI : Y : !
~~~~

[NiY-96Du-orig.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-orig.tdb): NI17Y2, type code %, sha256 `60a9de8a7a15712d…`

~~~~text
52: PHASE NI17Y2 % 2 17 2 !
53: CONST NI17Y2 : NI : Y : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1007/s11669-015-0390-6](https://doi.org/10.1007/s11669-015-0390-6) Jiapeng Huang, Bin Yang, Huiming Chen, Hang Wang, Thermodynamic Optimisation of the Ni-Al-Y Ternary System, J. Phase Equilib. Diffus. 36, 357-365 (2015).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2020.102214](https://doi.org/10.1016/j.calphad.2020.102214) Y. Wang, M. Ostrowska, G. Cacciamani, Calphad, 72, 102214(2021).  
_assessment that models this phase_
- [doi:10.1016/S0925-8388(96)02436-X](https://doi.org/10.1016/S0925-8388%2896%2902436-X) Z. Du, W. Zhang, J. Alloys Compd., 245, 164-67(1996).  
_assessment that models this phase_

## NI2Y (Ni–Y)

- Id: `phase:ni-y:ni2y`; status `assigned`
- Structure: Ni2Tm · cF192 · F-43m (216); type `st:ni2tm-cf192`; 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_mp, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Ni 0.6667, Y 0.3333
- Stability: stable in 5 of 5 calculated diagram(s): 300–1379.04 K, x(Y) 0.33333–0.33333
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-y:ni2y)

Names (6): _corpus: _corpus:phase:ni-y:ni2y  
_tdb: _tdb:NiY-05Du.tdb:NI2Y, tdb:NiY-15Hua.tdb:NI2Y, tdb:NiY-21Wan.tdb:NI2Y, tdb:NiY-96Du-LB.tdb:NI2Y, tdb:NiY-96Du-orig.tdb:NI2Y  


### TDB models of NI2Y (5): PHASE and CONSTITUENT statements as written

[NiY-05Du.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-05Du.tdb): NI2Y, type code %, sha256 `bbdd62ff4a5e36e0…`

~~~~text
69: PHASE NI2Y % 2 2 1 !
70: CONST NI2Y : NI : Y : !
~~~~

[NiY-15Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-15Hua.tdb): NI2Y, type code %, sha256 `dc9a8bc028e96db6…`

~~~~text
71: PHASE NI2Y % 2 2 1 !
72: CONST NI2Y : NI : Y : !
~~~~

[NiY-21Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-21Wan.tdb): NI2Y, type code %, sha256 `e22ecaca9278345e…`

~~~~text
72: PHASE NI2Y % 2 2 1 !
73: CONST NI2Y : NI : Y : !
~~~~

[NiY-96Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-LB.tdb): NI2Y, type code %, sha256 `72e391ce92b82a89…`

~~~~text
76: PHASE NI2Y % 2 2 1 !
77: CONST NI2Y : NI : Y : !
~~~~

[NiY-96Du-orig.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-orig.tdb): NI2Y, type code %, sha256 `60a9de8a7a15712d…`

~~~~text
77: PHASE NI2Y % 2 2 1 !
78: CONST NI2Y : NI : Y : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1007/s11669-015-0390-6](https://doi.org/10.1007/s11669-015-0390-6) Jiapeng Huang, Bin Yang, Huiming Chen, Hang Wang, Thermodynamic Optimisation of the Ni-Al-Y Ternary System, J. Phase Equilib. Diffus. 36, 357-365 (2015).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2020.102214](https://doi.org/10.1016/j.calphad.2020.102214) Y. Wang, M. Ostrowska, G. Cacciamani, Calphad, 72, 102214(2021).  
_assessment that models this phase_
- [doi:10.1016/S0925-8388(96)02436-X](https://doi.org/10.1016/S0925-8388%2896%2902436-X) Z. Du, W. Zhang, J. Alloys Compd., 245, 164-67(1996).  
_assessment that models this phase_

## NI2Y3 (Ni–Y)

- Id: `phase:ni-y:ni2y3`; status `assigned`
- Structure: Ni2Y3 · tP80 · P4_12_12 (92); type `st:ni2y3-tp80`; 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_oqmd, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Ni 0.4000, Y 0.6000
- Stability: stable in 5 of 5 calculated diagram(s): 300–1098.36 K, x(Y) 0.6–0.6
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-y:ni2y3)

Names (6): _corpus: _corpus:phase:ni-y:ni2y3  
_tdb: _tdb:NiY-05Du.tdb:NI2Y3, tdb:NiY-15Hua.tdb:NI2Y3, tdb:NiY-21Wan.tdb:NI2Y3, tdb:NiY-96Du-LB.tdb:NI2Y3, tdb:NiY-96Du-orig.tdb:NI2Y3  


### TDB models of NI2Y3 (5): PHASE and CONSTITUENT statements as written

[NiY-05Du.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-05Du.tdb): NI2Y3, type code %, sha256 `bbdd62ff4a5e36e0…`

~~~~text
79: PHASE NI2Y3 % 2 2 3 !
80: CONST NI2Y3 : NI : Y : !
~~~~

[NiY-15Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-15Hua.tdb): NI2Y3, type code %, sha256 `dc9a8bc028e96db6…`

~~~~text
81: PHASE NI2Y3 % 2 2 3 !
82: CONST NI2Y3 : NI : Y : !
~~~~

[NiY-21Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-21Wan.tdb): NI2Y3, type code %, sha256 `e22ecaca9278345e…`

~~~~text
82: PHASE NI2Y3 % 2 2 3 !
83: CONST NI2Y3 : NI : Y : !
~~~~

[NiY-96Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-LB.tdb): NI2Y3, type code %, sha256 `72e391ce92b82a89…`

~~~~text
86: PHASE NI2Y3 % 2 2 3 !
87: CONST NI2Y3 : NI : Y : !
~~~~

[NiY-96Du-orig.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-orig.tdb): NI2Y3, type code %, sha256 `60a9de8a7a15712d…`

~~~~text
87: PHASE NI2Y3 % 2 2 3 !
88: CONST NI2Y3 : NI : Y : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1007/s11669-015-0390-6](https://doi.org/10.1007/s11669-015-0390-6) Jiapeng Huang, Bin Yang, Huiming Chen, Hang Wang, Thermodynamic Optimisation of the Ni-Al-Y Ternary System, J. Phase Equilib. Diffus. 36, 357-365 (2015).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2020.102214](https://doi.org/10.1016/j.calphad.2020.102214) Y. Wang, M. Ostrowska, G. Cacciamani, Calphad, 72, 102214(2021).  
_assessment that models this phase_
- [doi:10.1016/S0925-8388(96)02436-X](https://doi.org/10.1016/S0925-8388%2896%2902436-X) Z. Du, W. Zhang, J. Alloys Compd., 245, 164-67(1996).  
_assessment that models this phase_

## NI3Y (Ni–Y)

- Id: `phase:ni-y:ni3y`; status `assigned`
- Structure: Ni3Pu · hR12 · R-3m (166); type `st:ni3pu-hr12`; 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 (dft_space_group_166_matches_2_structure_types, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Ni 0.7500, Y 0.2500
- Stability: stable in 5 of 5 calculated diagram(s): 300–1509.61 K, x(Y) 0.25–0.25
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-y:ni3y)

Names (6): _corpus: _corpus:phase:ni-y:ni3y  
_tdb: _tdb:NiY-05Du.tdb:NI3Y, tdb:NiY-15Hua.tdb:NI3Y, tdb:NiY-21Wan.tdb:NI3Y, tdb:NiY-96Du-LB.tdb:NI3Y, tdb:NiY-96Du-orig.tdb:NI3Y  


### TDB models of NI3Y (5): PHASE and CONSTITUENT statements as written

[NiY-05Du.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-05Du.tdb): NI3Y, type code %A, sha256 `bbdd62ff4a5e36e0…`

~~~~text
64: PHASE NI3Y %A 2 3 1 !
65: CONST NI3Y : NI : Y : !
~~~~

[NiY-15Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-15Hua.tdb): NI3Y, type code %A, sha256 `dc9a8bc028e96db6…`

~~~~text
66: PHASE NI3Y %A 2 3 1 !
67: CONST NI3Y : NI : Y : !
~~~~

[NiY-21Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-21Wan.tdb): NI3Y, type code %, sha256 `e22ecaca9278345e…`

~~~~text
67: PHASE NI3Y % 2 3 1 !
68: CONST NI3Y : NI : Y : !
~~~~

[NiY-96Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-LB.tdb): NI3Y, type code %, sha256 `72e391ce92b82a89…`

~~~~text
71: PHASE NI3Y % 2 3 1 !
72: CONST NI3Y : NI : Y : !
~~~~

[NiY-96Du-orig.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-orig.tdb): NI3Y, type code %, sha256 `60a9de8a7a15712d…`

~~~~text
72: PHASE NI3Y % 2 3 1 !
73: CONST NI3Y : NI : Y : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1007/s11669-015-0390-6](https://doi.org/10.1007/s11669-015-0390-6) Jiapeng Huang, Bin Yang, Huiming Chen, Hang Wang, Thermodynamic Optimisation of the Ni-Al-Y Ternary System, J. Phase Equilib. Diffus. 36, 357-365 (2015).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2020.102214](https://doi.org/10.1016/j.calphad.2020.102214) Y. Wang, M. Ostrowska, G. Cacciamani, Calphad, 72, 102214(2021).  
_assessment that models this phase_
- [doi:10.1016/S0925-8388(96)02436-X](https://doi.org/10.1016/S0925-8388%2896%2902436-X) Z. Du, W. Zhang, J. Alloys Compd., 245, 164-67(1996).  
_assessment that models this phase_

## NI4Y (Ni–Y)

- Id: `phase:ni-y:ni4y`; status `needs_review`
- No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete
- Candidate (sgte_mmc2): (Ni4Y) — Hallstedt 2025 mmc2 row for NI4Y: Ni4Y
- Stoichiometry: Ni 0.8000, Y 0.2000
- Stability: stable in 5 of 5 calculated diagram(s): 300–1613.47 K, x(Y) 0.2–0.2
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-y:ni4y)

Names (6): _corpus: _corpus:phase:ni-y:ni4y  
_tdb: _tdb:NiY-05Du.tdb:NI4Y, tdb:NiY-15Hua.tdb:NI4Y, tdb:NiY-21Wan.tdb:NI4Y, tdb:NiY-96Du-LB.tdb:NI4Y, tdb:NiY-96Du-orig.tdb:NI4Y  


### TDB models of NI4Y (5): PHASE and CONSTITUENT statements as written

[NiY-05Du.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-05Du.tdb): NI4Y, type code %, sha256 `bbdd62ff4a5e36e0…`

~~~~text
54: PHASE NI4Y % 2 4 1 !
55: CONST NI4Y : NI : Y : !
~~~~

[NiY-15Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-15Hua.tdb): NI4Y, type code %, sha256 `dc9a8bc028e96db6…`

~~~~text
56: PHASE NI4Y % 2 4 1 !
57: CONST NI4Y : NI : Y : !
~~~~

[NiY-21Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-21Wan.tdb): NI4Y, type code %, sha256 `e22ecaca9278345e…`

~~~~text
57: PHASE NI4Y % 2 4 1 !
58: CONST NI4Y : NI : Y : !
~~~~

[NiY-96Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-LB.tdb): NI4Y, type code %, sha256 `72e391ce92b82a89…`

~~~~text
61: PHASE NI4Y % 2 4 1 !
62: CONST NI4Y : NI : Y : !
~~~~

[NiY-96Du-orig.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-orig.tdb): NI4Y, type code %, sha256 `60a9de8a7a15712d…`

~~~~text
62: PHASE NI4Y % 2 4 1 !
63: CONST NI4Y : NI : Y : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1007/s11669-015-0390-6](https://doi.org/10.1007/s11669-015-0390-6) Jiapeng Huang, Bin Yang, Huiming Chen, Hang Wang, Thermodynamic Optimisation of the Ni-Al-Y Ternary System, J. Phase Equilib. Diffus. 36, 357-365 (2015).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2020.102214](https://doi.org/10.1016/j.calphad.2020.102214) Y. Wang, M. Ostrowska, G. Cacciamani, Calphad, 72, 102214(2021).  
_assessment that models this phase_
- [doi:10.1016/S0925-8388(96)02436-X](https://doi.org/10.1016/S0925-8388%2896%2902436-X) Z. Du, W. Zhang, J. Alloys Compd., 245, 164-67(1996).  
_assessment that models this phase_

## NI5Y_D2D (Ni–Y)

- Id: `phase:ni-y:ni5y-d2d`; status `assigned`
- Structure: CaCu5 · D2_d · hP6 · P6/mmm (191); type `st:d2-d-cacu5-hp6`; tier A: standard phase name; confidence high
- Stability: stable in 4 of 4 calculated diagram(s): 300–1702.76 K, x(Y) 0.16667–0.16667
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-y:ni5y-d2d)

Names (5): _corpus: _corpus:phase:ni-y:ni5y-d2d  
_tdb: _tdb:NiY-15Hua.tdb:NI5Y_D2D, tdb:NiY-21Wan.tdb:NI5Y_D2D, tdb:NiY-96Du-LB.tdb:NI5Y_D2D, tdb:NiY-96Du-orig.tdb:NI5Y_D2D  


### TDB models of NI5Y_D2D (4): PHASE and CONSTITUENT statements as written

[NiY-15Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-15Hua.tdb): NI5Y_D2D, type code %, sha256 `dc9a8bc028e96db6…`

~~~~text
51: PHASE NI5Y_D2D % 2 5 1 !
52: CONST NI5Y_D2D : NI : Y : !
~~~~

[NiY-21Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-21Wan.tdb): NI5Y_D2D, type code %, sha256 `e22ecaca9278345e…`

~~~~text
52: PHASE NI5Y_D2D % 3 1 4 1 !
53: CONST NI5Y_D2D : Y : NI : NI VA : !
~~~~

[NiY-96Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-LB.tdb): NI5Y_D2D, type code %, sha256 `72e391ce92b82a89…`

~~~~text
56: PHASE NI5Y_D2D % 2 5 1 !
57: CONST NI5Y_D2D : NI : Y : !
~~~~

[NiY-96Du-orig.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-orig.tdb): NI5Y_D2D, type code %, sha256 `60a9de8a7a15712d…`

~~~~text
57: PHASE NI5Y_D2D % 2 5 1 !
58: CONST NI5Y_D2D : NI : Y : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1007/s11669-015-0390-6](https://doi.org/10.1007/s11669-015-0390-6) Jiapeng Huang, Bin Yang, Huiming Chen, Hang Wang, Thermodynamic Optimisation of the Ni-Al-Y Ternary System, J. Phase Equilib. Diffus. 36, 357-365 (2015).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2020.102214](https://doi.org/10.1016/j.calphad.2020.102214) Y. Wang, M. Ostrowska, G. Cacciamani, Calphad, 72, 102214(2021).  
_assessment that models this phase_
- [doi:10.1016/S0925-8388(96)02436-X](https://doi.org/10.1016/S0925-8388%2896%2902436-X) Z. Du, W. Zhang, J. Alloys Compd., 245, 164-67(1996).  
_assessment that models this phase_

## NI7Y2 (Ni–Y)

- Id: `phase:ni-y:ni7y2`; 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: Ni 0.7778, Y 0.2222
- Stability: stable in 5 of 5 calculated diagram(s): 300–1570.49 K, x(Y) 0.22222–0.22222
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-y:ni7y2)

Names (6): _corpus: _corpus:phase:ni-y:ni7y2  
_tdb: _tdb:NiY-05Du.tdb:NI7Y2, tdb:NiY-15Hua.tdb:NI7Y2, tdb:NiY-21Wan.tdb:NI7Y2, tdb:NiY-96Du-LB.tdb:NI7Y2, tdb:NiY-96Du-orig.tdb:NI7Y2  


### TDB models of NI7Y2 (5): PHASE and CONSTITUENT statements as written

[NiY-05Du.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-05Du.tdb): NI7Y2, type code %A, sha256 `bbdd62ff4a5e36e0…`

~~~~text
59: PHASE NI7Y2 %A 2 7 2 !
60: CONST NI7Y2 : NI : Y : !
~~~~

[NiY-15Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-15Hua.tdb): NI7Y2, type code %A, sha256 `dc9a8bc028e96db6…`

~~~~text
61: PHASE NI7Y2 %A 2 7 2 !
62: CONST NI7Y2 : NI : Y : !
~~~~

[NiY-21Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-21Wan.tdb): NI7Y2, type code %, sha256 `e22ecaca9278345e…`

~~~~text
62: PHASE NI7Y2 % 2 7 2 !
63: CONST NI7Y2 : NI : Y : !
~~~~

[NiY-96Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-LB.tdb): NI7Y2, type code %, sha256 `72e391ce92b82a89…`

~~~~text
66: PHASE NI7Y2 % 2 7 2 !
67: CONST NI7Y2 : NI : Y : !
~~~~

[NiY-96Du-orig.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-orig.tdb): NI7Y2, type code %, sha256 `60a9de8a7a15712d…`

~~~~text
67: PHASE NI7Y2 % 2 7 2 !
68: CONST NI7Y2 : NI : Y : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1007/s11669-015-0390-6](https://doi.org/10.1007/s11669-015-0390-6) Jiapeng Huang, Bin Yang, Huiming Chen, Hang Wang, Thermodynamic Optimisation of the Ni-Al-Y Ternary System, J. Phase Equilib. Diffus. 36, 357-365 (2015).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2020.102214](https://doi.org/10.1016/j.calphad.2020.102214) Y. Wang, M. Ostrowska, G. Cacciamani, Calphad, 72, 102214(2021).  
_assessment that models this phase_
- [doi:10.1016/S0925-8388(96)02436-X](https://doi.org/10.1016/S0925-8388%2896%2902436-X) Z. Du, W. Zhang, J. Alloys Compd., 245, 164-67(1996).  
_assessment that models this phase_

## NIY_B27 (Ni–Y)

- Id: `phase:ni-y:niy-b27`; status `assigned`
- Structure: FeB · B27 · oP8 · Pnma (62); type `st:b27-feb-op8`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaaaacam and oqmd-17852, space group 62
- Stoichiometry: Ni 0.5000, Y 0.5000
- Stability: stable in 5 of 5 calculated diagram(s): 300–1344.05 K, x(Y) 0.5–0.5
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-y:niy-b27)

Names (8): _corpus: _corpus:phase:ni-y:niy-b27  
_mp: _mp:mp-aaaaacam  
_oqmd: _oqmd:oqmd-17852  
_tdb: _tdb:NiY-05Du.tdb:NIY_B27, tdb:NiY-15Hua.tdb:NIY_B27, tdb:NiY-21Wan.tdb:NIY_B27, tdb:NiY-96Du-LB.tdb:NIY_B27, tdb:NiY-96Du-orig.tdb:NIY_B27  


### TDB models of NIY_B27 (5): PHASE and CONSTITUENT statements as written

[NiY-05Du.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-05Du.tdb): NIY_B27, type code %, sha256 `bbdd62ff4a5e36e0…`

~~~~text
74: PHASE NIY_B27 % 2 1 1 !
75: CONST NIY_B27 : NI : Y : !
~~~~

[NiY-15Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-15Hua.tdb): NIY_B27, type code %, sha256 `dc9a8bc028e96db6…`

~~~~text
76: PHASE NIY_B27 % 2 1 1 !
77: CONST NIY_B27 : NI : Y : !
~~~~

[NiY-21Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-21Wan.tdb): NIY_B27, type code %, sha256 `e22ecaca9278345e…`

~~~~text
77: PHASE NIY_B27 % 2 1 1 !
78: CONST NIY_B27 : NI : Y : !
~~~~

[NiY-96Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-LB.tdb): NIY_B27, type code %, sha256 `72e391ce92b82a89…`

~~~~text
81: PHASE NIY_B27 % 2 1 1 !
82: CONST NIY_B27 : NI : Y : !
~~~~

[NiY-96Du-orig.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-orig.tdb): NIY_B27, type code %, sha256 `60a9de8a7a15712d…`

~~~~text
82: PHASE NIY_B27 % 2 1 1 !
83: CONST NIY_B27 : NI : Y : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1007/s11669-015-0390-6](https://doi.org/10.1007/s11669-015-0390-6) Jiapeng Huang, Bin Yang, Huiming Chen, Hang Wang, Thermodynamic Optimisation of the Ni-Al-Y Ternary System, J. Phase Equilib. Diffus. 36, 357-365 (2015).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2020.102214](https://doi.org/10.1016/j.calphad.2020.102214) Y. Wang, M. Ostrowska, G. Cacciamani, Calphad, 72, 102214(2021).  
_assessment that models this phase_
- [doi:10.1016/S0925-8388(96)02436-X](https://doi.org/10.1016/S0925-8388%2896%2902436-X) Z. Du, W. Zhang, J. Alloys Compd., 245, 164-67(1996).  
_assessment that models this phase_

## NIY3_D011 (Ni–Y)

- Id: `phase:ni-y:niy3-d011`; status `assigned`
- Structure: Fe3C · D0_11 · oP16 · Pnma (62); type `st:d0-11-fe3c-op16`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaackxoj and oqmd-31307, space group 62
- Stoichiometry: Ni 0.2500, Y 0.7500
- Stability: stable in 5 of 5 calculated diagram(s): 300–1180 K, x(Y) 0.75–0.75
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-y:niy3-d011)

Names (8): _corpus: _corpus:phase:ni-y:niy3-d011  
_mp: _mp:mp-aaackxoj  
_oqmd: _oqmd:oqmd-31307  
_tdb: _tdb:NiY-05Du.tdb:NIY3_D011, tdb:NiY-15Hua.tdb:NIY3_D011, tdb:NiY-21Wan.tdb:NIY3_D011, tdb:NiY-96Du-LB.tdb:NIY3_D011, tdb:NiY-96Du-orig.tdb:NIY3_D011  


### TDB models of NIY3_D011 (5): PHASE and CONSTITUENT statements as written

[NiY-05Du.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-05Du.tdb): NIY3_D011, type code %, sha256 `bbdd62ff4a5e36e0…`

~~~~text
84: PHASE NIY3_D011 % 2 1 3 !
85: CONST NIY3_D011 : NI : Y : !
~~~~

[NiY-15Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-15Hua.tdb): NIY3_D011, type code %, sha256 `dc9a8bc028e96db6…`

~~~~text
86: PHASE NIY3_D011 % 2 1 3 !
87: CONST NIY3_D011 : NI : Y : !
~~~~

[NiY-21Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-21Wan.tdb): NIY3_D011, type code %, sha256 `e22ecaca9278345e…`

~~~~text
87: PHASE NIY3_D011 % 2 1 3 !
88: CONST NIY3_D011 : NI : Y : !
~~~~

[NiY-96Du-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-LB.tdb): NIY3_D011, type code %, sha256 `72e391ce92b82a89…`

~~~~text
91: PHASE NIY3_D011 % 2 1 3 !
92: CONST NIY3_D011 : NI : Y : !
~~~~

[NiY-96Du-orig.tdb](https://orchid-project.org/data/databases/sgte-binary/NiY-96Du-orig.tdb): NIY3_D011, type code %, sha256 `60a9de8a7a15712d…`

~~~~text
92: PHASE NIY3_D011 % 2 1 3 !
93: CONST NIY3_D011 : NI : Y : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1007/s11669-015-0390-6](https://doi.org/10.1007/s11669-015-0390-6) Jiapeng Huang, Bin Yang, Huiming Chen, Hang Wang, Thermodynamic Optimisation of the Ni-Al-Y Ternary System, J. Phase Equilib. Diffus. 36, 357-365 (2015).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2020.102214](https://doi.org/10.1016/j.calphad.2020.102214) Y. Wang, M. Ostrowska, G. Cacciamani, Calphad, 72, 102214(2021).  
_assessment that models this phase_
- [doi:10.1016/S0925-8388(96)02436-X](https://doi.org/10.1016/S0925-8388%2896%2902436-X) Z. Du, W. Zhang, J. Alloys Compd., 245, 164-67(1996).  
_assessment that models 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).