# Au–Zr phases

> Au–Zr system: 12 phases (tier A 6, tier C 2, liquid 1, needs_review 3); 12 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/AU-ZR.html · Markdown: https://data.orchid-project.org/phases/pages/AU-ZR.md

12 phases (tier A 6, tier C 2, liquid 1, needs_review 3); 12 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=AU-ZR) · [full JSON](https://data.orchid-project.org/phases/systems/AU-ZR.json) · [Au–Zr system page](https://data.orchid-project.org/systems/AU-ZR.html) · [Markdown](https://data.orchid-project.org/phases/pages/AU-ZR.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md)

Table: Phases of the Au–Zr system (12)

| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---:|---:|
| [AU10ZR7](#phase-au-zr-au10zr7); _phase:au-zr:au10zr7_ |  | needs_review | stable in 1 of 1 calculated diagram(s): 300–1748.95 K, x(Zr) 0.41176–0.41176 | 0 | 1 |
| [AU2ZR_C11B](#phase-au-zr-au2zr-c11b); _phase:au-zr:au2zr-c11b_ | MoSi2 · C11_b · tI6 · I4/mmm (139) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1850.78 K, x(Zr) 0.33333–0.33333 | 0 | 1 |
| [AU2ZR3](#phase-au-zr-au2zr3); _phase:au-zr:au2zr3_ |  | needs_review | stable in 1 of 1 calculated diagram(s): 1200.76–1368.79 K, x(Zr) 0.6–0.6 | 0 | 1 |
| [AU3ZR_D0A](#phase-au-zr-au3zr-d0a); _phase:au-zr:au3zr-d0a_ | beta-Cu3Ti · D0_a · oP8 · Pmmn (59) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1832.43 K, x(Zr) 0.25–0.25 | 0 | 1 |
| [AU4ZR](#phase-au-zr-au4zr); _phase:au-zr:au4zr_ | Au4Zr · oP20 · Pnma (62) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–1527.14 K, x(Zr) 0.2–0.2 | 0 | 1 |
| [AUZR](#phase-au-zr-auzr); _phase:au-zr:auzr_ |  | needs_review | stable in 1 of 1 calculated diagram(s): 300–1845.5 K, x(Zr) 0.5–0.5 | 0 | 1 |
| [AUZR2](#phase-au-zr-auzr2); _phase:au-zr:auzr2_ | CuZr2 · tI6 · I4/mmm (139) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–1416.25 K, x(Zr) 0.66667–0.66667 | 0 | 1 |
| [AUZR3_A15](#phase-au-zr-auzr3-a15); _phase:au-zr:auzr3-a15_ | Cr3Si · A15 · cP8 · Pm-3n (223) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1414.52 K, x(Zr) 0.75–0.75 | 0 | 1 |
| [BCC_A2](#phase-au-zr-bcc-a2); _phase:au-zr:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 1049–2642.15 K, x(Zr) 0.87028–1 | 0 | 1 |
| [FCC_A1](#phase-au-zr-fcc-a1); _phase:au-zr:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1352.26 K, x(Zr) 0–0.05625 | 0 | 1 |
| [HCP_A3](#phase-au-zr-hcp-a3); _phase:au-zr:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1864 K, x(Zr) 0.94471–1 | 0 | 1 |
| [LIQUID](#phase-au-zr-liquid); _phase:au-zr:liquid_ | liquid | liquid | stable in 1 of 1 calculated diagram(s): 1337.33–4000 K, x(Zr) 0–1 | 0 | 1 |

## AU10ZR7 (Au–Zr)

- Id: `phase:au-zr:au10zr7`; status `needs_review`
- No structure assigned. Why: no_on_hull_entry_in_mp; no_structure_token; sgte_mmc2_row_incomplete
- Candidate (dft_oqmd): Cmca (64) — on-hull OQMD Au10 Zr7 at x(ZR)=0.4118
- Candidate (sgte_mmc2): (Au10Zr7) · tI34 — Hallstedt 2025 mmc2 row for AU10ZR7: Au10Zr7
- Stoichiometry: Au 0.5882, Zr 0.4118
- Stability: stable in 1 of 1 calculated diagram(s): 300–1748.95 K, x(Zr) 0.41176–0.41176
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:au-zr:au10zr7)

Names (2): _corpus: _corpus:phase:au-zr:au10zr7  
_tdb: _tdb:AuZr-00Su-LB.tdb:AU10ZR7  


### TDB models of AU10ZR7 (1): PHASE and CONSTITUENT statements as written

[AuZr-00Su-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AuZr-00Su-LB.tdb): AU10ZR7, type code %, sha256 `72c1438a751e5dd4…`

~~~~text
55: PHASE AU10ZR7 % 2 10 7 !
56: CONST AU10ZR7 : AU : ZR : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-910906](https://doi.org/10.1515/ijmr-2000-910906) X. Su, F. Yin, Z. Li, Y. Shi, Z. Metallkd., 91, 744-47(2000).  
_assessment that models this phase_

## AU2ZR_C11B (Au–Zr)

- Id: `phase:au-zr:au2zr-c11b`; status `assigned`
- Structure: MoSi2 · C11_b · tI6 · I4/mmm (139); type `st:c11-b-mosi2-ti6`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaacfybv and oqmd-28235, space group 139
- Stoichiometry: Au 0.6667, Zr 0.3333
- Stability: stable in 1 of 1 calculated diagram(s): 300–1850.78 K, x(Zr) 0.33333–0.33333
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:au-zr:au2zr-c11b)

Names (4): _corpus: _corpus:phase:au-zr:au2zr-c11b  
_mp: _mp:mp-aaacfybv  
_oqmd: _oqmd:oqmd-28235  
_tdb: _tdb:AuZr-00Su-LB.tdb:AU2ZR_C11B  


### TDB models of AU2ZR_C11B (1): PHASE and CONSTITUENT statements as written

[AuZr-00Su-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AuZr-00Su-LB.tdb): AU2ZR_C11B, type code %, sha256 `72c1438a751e5dd4…`

~~~~text
50: PHASE AU2ZR_C11B % 2 2 1 !
51: CONST AU2ZR_C11B : AU : ZR : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-910906](https://doi.org/10.1515/ijmr-2000-910906) X. Su, F. Yin, Z. Li, Y. Shi, Z. Metallkd., 91, 744-47(2000).  
_assessment that models this phase_

## AU2ZR3 (Au–Zr)

- Id: `phase:au-zr:au2zr3`; status `needs_review`
- No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete
- Candidate (sgte_mmc2): (Au2Zr3) — Hallstedt 2025 mmc2 row for AU2ZR3: Au2Zr3
- Stoichiometry: Au 0.4000, Zr 0.6000
- Stability: stable in 1 of 1 calculated diagram(s): 1200.76–1368.79 K, x(Zr) 0.6–0.6
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:au-zr:au2zr3)

Names (2): _corpus: _corpus:phase:au-zr:au2zr3  
_tdb: _tdb:AuZr-00Su-LB.tdb:AU2ZR3  


### TDB models of AU2ZR3 (1): PHASE and CONSTITUENT statements as written

[AuZr-00Su-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AuZr-00Su-LB.tdb): AU2ZR3, type code %, sha256 `72c1438a751e5dd4…`

~~~~text
66: PHASE AU2ZR3 % 2 2 3 !
67: CONST AU2ZR3 : AU : ZR : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-910906](https://doi.org/10.1515/ijmr-2000-910906) X. Su, F. Yin, Z. Li, Y. Shi, Z. Metallkd., 91, 744-47(2000).  
_assessment that models this phase_

## AU3ZR_D0A (Au–Zr)

- Id: `phase:au-zr:au3zr-d0a`; status `assigned`
- Structure: beta-Cu3Ti · D0_a · oP8 · Pmmn (59); type `st:d0-a-beta-cu3ti-op8`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaacjlef and oqmd-28234, space group 59
- Stoichiometry: Au 0.7500, Zr 0.2500
- Stability: stable in 1 of 1 calculated diagram(s): 300–1832.43 K, x(Zr) 0.25–0.25
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:au-zr:au3zr-d0a)

Names (4): _corpus: _corpus:phase:au-zr:au3zr-d0a  
_mp: _mp:mp-aaacjlef  
_oqmd: _oqmd:oqmd-28234  
_tdb: _tdb:AuZr-00Su-LB.tdb:AU3ZR_D0A  


### TDB models of AU3ZR_D0A (1): PHASE and CONSTITUENT statements as written

[AuZr-00Su-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AuZr-00Su-LB.tdb): AU3ZR_D0A, type code %, sha256 `72c1438a751e5dd4…`

~~~~text
45: PHASE AU3ZR_D0A % 2 3 1 !
46: CONST AU3ZR_D0A : AU : ZR : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-910906](https://doi.org/10.1515/ijmr-2000-910906) X. Su, F. Yin, Z. Li, Y. Shi, Z. Metallkd., 91, 744-47(2000).  
_assessment that models this phase_

## AU4ZR (Au–Zr)

- Id: `phase:au-zr:au4zr`; status `assigned`
- Structure: Au4Zr · oP20 · Pnma (62); type `st:au4zr-op20`; 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_62_matches_2_structure_types, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Au 0.8000, Zr 0.2000
- Stability: stable in 1 of 1 calculated diagram(s): 300–1527.14 K, x(Zr) 0.2–0.2
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:au-zr:au4zr)

Names (2): _corpus: _corpus:phase:au-zr:au4zr  
_tdb: _tdb:AuZr-00Su-LB.tdb:AU4ZR  


### TDB models of AU4ZR (1): PHASE and CONSTITUENT statements as written

[AuZr-00Su-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AuZr-00Su-LB.tdb): AU4ZR, type code %, sha256 `72c1438a751e5dd4…`

~~~~text
40: PHASE AU4ZR % 2 4 1 !
41: CONST AU4ZR : AU : ZR : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-910906](https://doi.org/10.1515/ijmr-2000-910906) X. Su, F. Yin, Z. Li, Y. Shi, Z. Metallkd., 91, 744-47(2000).  
_assessment that models this phase_

## AUZR (Au–Zr)

- Id: `phase:au-zr:auzr`; status `needs_review`
- No structure assigned. Why: no_on_hull_entry_in_mp; no_structure_token
- Candidate (dft_oqmd): P4/nmm (129) — on-hull OQMD Au1 Zr1 at x(ZR)=0.5000
- Candidate (tdb_comment): AuZr · mP32 · P2/m — AuZr-00Su-LB.tdb: 'Prototype AuZr (mP32, P2/m) alpha-AuZr'
- Candidate (tdb_comment): CuTi3 · tP4 · P4/mmm, L6_0 — AuZr-00Su-LB.tdb: 'Prototype CuTi3 (tP4, P4/mmm, L6_0) beta-AuZr'
- Stoichiometry: Au 0.5000, Zr 0.5000
- Stability: stable in 1 of 1 calculated diagram(s): 300–1845.5 K, x(Zr) 0.5–0.5
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:au-zr:auzr)

Names (2): _corpus: _corpus:phase:au-zr:auzr  
_tdb: _tdb:AuZr-00Su-LB.tdb:AUZR  


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

[AuZr-00Su-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AuZr-00Su-LB.tdb): AUZR, type code %, sha256 `72c1438a751e5dd4…`

~~~~text
61: PHASE AUZR % 2 1 1 !
62: CONST AUZR : AU : ZR : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-910906](https://doi.org/10.1515/ijmr-2000-910906) X. Su, F. Yin, Z. Li, Y. Shi, Z. Metallkd., 91, 744-47(2000).  
_assessment that models this phase_

## AUZR2 (Au–Zr)

- Id: `phase:au-zr:auzr2`; status `assigned`
- Structure: CuZr2 · tI6 · I4/mmm (139); type `st:cuzr2-ti6`; 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_139_matches_5_structure_types, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Au 0.3333, Zr 0.6667
- Stability: stable in 1 of 1 calculated diagram(s): 300–1416.25 K, x(Zr) 0.66667–0.66667
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:au-zr:auzr2)

Names (2): _corpus: _corpus:phase:au-zr:auzr2  
_tdb: _tdb:AuZr-00Su-LB.tdb:AUZR2  


### TDB models of AUZR2 (1): PHASE and CONSTITUENT statements as written

[AuZr-00Su-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AuZr-00Su-LB.tdb): AUZR2, type code %, sha256 `72c1438a751e5dd4…`

~~~~text
71: PHASE AUZR2 % 2 1 2 !
72: CONST AUZR2 : AU : ZR : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-910906](https://doi.org/10.1515/ijmr-2000-910906) X. Su, F. Yin, Z. Li, Y. Shi, Z. Metallkd., 91, 744-47(2000).  
_assessment that models this phase_

## AUZR3_A15 (Au–Zr)

- Id: `phase:au-zr:auzr3-a15`; status `assigned`
- Structure: Cr3Si · A15 · cP8 · Pm-3n (223); type `st:a15-cr3si-cp8`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaaaaqrf and oqmd-10833, space group 223
- Stoichiometry: Au 0.2500, Zr 0.7500
- Stability: stable in 1 of 1 calculated diagram(s): 300–1414.52 K, x(Zr) 0.75–0.75
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:au-zr:auzr3-a15)

Names (4): _corpus: _corpus:phase:au-zr:auzr3-a15  
_mp: _mp:mp-aaaaaqrf  
_oqmd: _oqmd:oqmd-10833  
_tdb: _tdb:AuZr-00Su-LB.tdb:AUZR3_A15  


### TDB models of AUZR3_A15 (1): PHASE and CONSTITUENT statements as written

[AuZr-00Su-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AuZr-00Su-LB.tdb): AUZR3_A15, type code %, sha256 `72c1438a751e5dd4…`

~~~~text
76: PHASE AUZR3_A15 % 2 1 3 !
77: CONST AUZR3_A15 : AU : ZR : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-910906](https://doi.org/10.1515/ijmr-2000-910906) X. Su, F. Yin, Z. Li, Y. Shi, Z. Metallkd., 91, 744-47(2000).  
_assessment that models this phase_

## BCC_A2 (Au–Zr)

- Id: `phase:au-zr: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 1 of 1 calculated diagram(s): 1049–2642.15 K, x(Zr) 0.87028–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:au-zr:bcc-a2)

Names (2): _corpus: _corpus:phase:au-zr:bcc-a2  
_tdb: _tdb:AuZr-00Su-LB.tdb:BCC_A2  


### TDB models of BCC_A2 (1): PHASE and CONSTITUENT statements as written

[AuZr-00Su-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AuZr-00Su-LB.tdb): BCC_A2, type code %B, sha256 `72c1438a751e5dd4…`

~~~~text
30: PHASE BCC_A2 %B 2 1 3 !
31: CONST BCC_A2 : AU ZR% : VA : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-910906](https://doi.org/10.1515/ijmr-2000-910906) X. Su, F. Yin, Z. Li, Y. Shi, Z. Metallkd., 91, 744-47(2000).  
_assessment that models this phase_

## FCC_A1 (Au–Zr)

- Id: `phase:au-zr: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 1 of 1 calculated diagram(s): 300–1352.26 K, x(Zr) 0–0.05625
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:au-zr:fcc-a1)

Names (2): _corpus: _corpus:phase:au-zr:fcc-a1  
_tdb: _tdb:AuZr-00Su-LB.tdb:FCC_A1  


### TDB models of FCC_A1 (1): PHASE and CONSTITUENT statements as written

[AuZr-00Su-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AuZr-00Su-LB.tdb): FCC_A1, type code %A, sha256 `72c1438a751e5dd4…`

~~~~text
25: PHASE FCC_A1 %A 2 1 1 !
26: CONST FCC_A1 : AU% ZR : VA : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-910906](https://doi.org/10.1515/ijmr-2000-910906) X. Su, F. Yin, Z. Li, Y. Shi, Z. Metallkd., 91, 744-47(2000).  
_assessment that models this phase_

## HCP_A3 (Au–Zr)

- Id: `phase:au-zr: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 1 of 1 calculated diagram(s): 300–1864 K, x(Zr) 0.94471–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:au-zr:hcp-a3)

Names (2): _corpus: _corpus:phase:au-zr:hcp-a3  
_tdb: _tdb:AuZr-00Su-LB.tdb:HCP_A3  


### TDB models of HCP_A3 (1): PHASE and CONSTITUENT statements as written

[AuZr-00Su-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AuZr-00Su-LB.tdb): HCP_A3, type code %A, sha256 `72c1438a751e5dd4…`

~~~~text
35: PHASE HCP_A3 %A 2 1 0.5 !
36: CONST HCP_A3 : AU ZR% : VA : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-910906](https://doi.org/10.1515/ijmr-2000-910906) X. Su, F. Yin, Z. Li, Y. Shi, Z. Metallkd., 91, 744-47(2000).  
_assessment that models this phase_

## LIQUID (Au–Zr)

- Id: `phase:au-zr:liquid`; status `assigned`
- Structure: liquid; type `st:liquid`; liquid; confidence high
- Stability: stable in 1 of 1 calculated diagram(s): 1337.33–4000 K, x(Zr) 0–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:au-zr:liquid)

Names (2): _corpus: _corpus:phase:au-zr:liquid  
_tdb: _tdb:AuZr-00Su-LB.tdb:LIQUID  


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

[AuZr-00Su-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AuZr-00Su-LB.tdb): LIQUID, type code %, sha256 `72c1438a751e5dd4…`

~~~~text
20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : AU ZR : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-910906](https://doi.org/10.1515/ijmr-2000-910906) X. Su, F. Yin, Z. Li, Y. Shi, Z. Metallkd., 91, 744-47(2000).  
_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).