# Ga–Ni phases > Ga–Ni system: 16 phases (tier A 10, tier B 1, tier C 4, liquid 1); 14 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/GA-NI.html · Markdown: https://data.orchid-project.org/phases/pages/GA-NI.md 16 phases (tier A 10, tier B 1, tier C 4, liquid 1); 14 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=GA-NI) · [full JSON](https://data.orchid-project.org/phases/systems/GA-NI.json) · [Ga–Ni system page](https://data.orchid-project.org/systems/GA-NI.html) · [Markdown](https://data.orchid-project.org/phases/pages/GA-NI.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md) Table: Phases of the Ga–Ni system (16) | Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models | |---|---|---|---|---:|---:| | [ORTHORHOMBIC_A11](#phase-ga-ni-a11-orthorhombic); _phase:ga-ni:a11-orthorhombic_ | alpha-Ga · A11 · oC8 · Cmce (64) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–2499.91 K, x(Ni) 0–0 | 0 | 2 | | [BCC_A2](#phase-ga-ni-bcc-a2); _phase:ga-ni:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | not stable in 2 calculated diagram(s) | 0 | 2 | | [FCC_A1](#phase-ga-ni-fcc-a1); _phase:ga-ni:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–2499.63 K, x(Ni) 0.78634–1 | 0 | 3 | | [L12_FCC](#phase-ga-ni-fcc-l12); _phase:ga-ni:fcc-l12_ | AuCu3 · L1_2 · cP4 · Pm-3m (221) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1728.02 K, x(Ni) 0.71082–1 | 0 | 1 | | [GA2NI3](#phase-ga-ni-ga2ni3); _phase:ga-ni:ga2ni3_ | Ga9Ni13 · mC44 · C2/m (12) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–1227.63 K, x(Ni) 0.6–0.6 | 0 | 1 | | [GA2NI3_B82](#phase-ga-ni-ga2ni3-b82); _phase:ga-ni:ga2ni3-b82_ | InNi2 · B8_2 · hP6 · P6_3/mmc (194) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 985.74–1212.15 K, x(Ni) 0.6319–0.6428 | 0 | 1 | | [GA3NI2_D513](#phase-ga-ni-ga3ni2-d513); _phase:ga-ni:ga3ni2-d513_ | Ni2Al3 · D5_13 · hP5 · P-3m1 (164) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–1237 K, x(Ni) 0.4–0.4 | 0 | 2 | | [GA3NI5](#phase-ga-ni-ga3ni5); _phase:ga-ni:ga3ni5_ | Ga3Pt5 · oC16 · Cmmm (65) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 2 of 2 calculated diagram(s): 300–1011.21 K, x(Ni) 0.625–0.65053 | 0 | 2 | | [GA4NI](#phase-ga-ni-ga4ni); _phase:ga-ni:ga4ni_ | Ga4Ni · cI40 · I23 (197) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–636.66 K, x(Ni) 0.2–0.2 | 0 | 1 | | [GA4NI3](#phase-ga-ni-ga4ni3); _phase:ga-ni:ga4ni3_ | Ga4Ni3 · cI112 · Ia-3d (230) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 2 of 2 calculated diagram(s): 300–837.01 K, x(Ni) 0.42857–0.42857 | 0 | 2 | | [GA7NI3_D8F](#phase-ga-ni-ga7ni3-d8f); _phase:ga-ni:ga7ni3-d8f_ | Ru3Sn7 · D8_f · cI40 · Im-3m (229) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–661.01 K, x(Ni) 0.3–0.3 | 0 | 1 | | [GA9NI13](#phase-ga-ni-ga9ni13); _phase:ga-ni:ga9ni13_ | Ga9Ni13 · mC44 · C2/m (12) | tier B: DFT-supported (unique MP + OQMD match) | stable in 1 of 1 calculated diagram(s): 300–1070 K, x(Ni) 0.59091–0.59091 | 0 | 1 | | [GANI_B2](#phase-ga-ni-gani-b2); _phase:ga-ni:gani-b2_ | CsCl · B2 · cP2 · Pm-3m (221) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–1501.71 K, x(Ni) 0.4293–0.70039 | 0 | 2 | | [GANI3_L12](#phase-ga-ni-gani3-l12); _phase:ga-ni:gani3-l12_ | AuCu3 · L1_2 · cP4 · Pm-3m (221) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1492.13 K, x(Ni) 0.75–0.75 | 0 | 1 | | [HCP_A3](#phase-ga-ni-hcp-a3); _phase:ga-ni:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | not stable in 2 calculated diagram(s) | 0 | 2 | | [LIQUID](#phase-ga-ni-liquid); _phase:ga-ni:liquid_ | liquid | liquid | stable in 2 of 2 calculated diagram(s): 302.71–2500 K, x(Ni) 0–1 | 0 | 2 | ## ORTHORHOMBIC_A11 (Ga–Ni) - Id: `phase:ga-ni:a11-orthorhombic`; status `assigned` - Structure: alpha-Ga · A11 · oC8 · Cmce (64); type `st:a11-alpha-ga-oc8`; tier A: standard phase name; confidence high - Stoichiometry: Ga 1.0000 - Stability: stable in 2 of 2 calculated diagram(s): 300–2499.91 K, x(Ni) 0–0 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ni:a11-orthorhombic) Names (3): _corpus: _corpus:phase:ga-ni:a11-orthorhombic _tdb: _tdb:GaNi-15Cao.tdb:ORTHORHOMBIC_A11, tdb:GaNi-99Gro.tdb:ORTHORHOMBIC_A11 ### TDB models of ORTHORHOMBIC_A11 (2): PHASE and CONSTITUENT statements as written [GaNi-15Cao.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-15Cao.tdb): ORTHORHOMBIC_A11, type code %, sha256 `51e5dcd730ebe85b…` ~~~~text 58: PHASE ORTHORHOMBIC_A11 % 1 1 ! 59: CONST ORTHORHOMBIC_A11 : GA : ! ~~~~ [GaNi-99Gro.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-99Gro.tdb): ORTHORHOMBIC_A11, type code %, sha256 `d9d13119777dc618…` ~~~~text 47: PHASE ORTHORHOMBIC_A11 % 1 1 ! 48: CONST ORTHORHOMBIC_A11 : GA : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1007/s12598-014-0365-5](https://doi.org/10.1007/s12598-014-0365-5) Z.-M. Cao, X. Shi, W. Xie, I. Ohnuma, K. Ishida, Z.-Y. Qiao, Rare Met., 34, 864-72(2015). _assessment that models this phase_ - [doi:10.1361/105497199770340608](https://doi.org/10.1361/105497199770340608) J. Gröbner, R. Wenzel, G. G. Fischer, R. Schmid-Fetzer, Thermodynamic calculation of the binary systems M-Ga and investigation of ternary M-Ga-N phase equilibria (M=Ni, Co, Pd, Cr), JPE 20, 615-625 (1999). _assessment that models this phase_ ## BCC_A2 (Ga–Ni) - Id: `phase:ga-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: not stable in 2 calculated diagram(s) - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ni:bcc-a2) Names (3): _corpus: _corpus:phase:ga-ni:bcc-a2 _tdb: _tdb:GaNi-15Cao.tdb:BCC_A2, tdb:GaNi-99Gro.tdb:BCC_A2 ### TDB models of BCC_A2 (2): PHASE and CONSTITUENT statements as written [GaNi-15Cao.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-15Cao.tdb): BCC_A2, type code %B, sha256 `51e5dcd730ebe85b…` ~~~~text 48: PHASE BCC_A2 %B 2 1 3 ! 49: CONST BCC_A2 : GA NI : VA : ! ~~~~ [GaNi-99Gro.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-99Gro.tdb): BCC_A2, type code %B, sha256 `d9d13119777dc618…` ~~~~text 37: PHASE BCC_A2 %B 2 1 3 ! 38: CONST BCC_A2 : GA NI : VA : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1007/s12598-014-0365-5](https://doi.org/10.1007/s12598-014-0365-5) Z.-M. Cao, X. Shi, W. Xie, I. Ohnuma, K. Ishida, Z.-Y. Qiao, Rare Met., 34, 864-72(2015). _assessment that models this phase_ - [doi:10.1361/105497199770340608](https://doi.org/10.1361/105497199770340608) J. Gröbner, R. Wenzel, G. G. Fischer, R. Schmid-Fetzer, Thermodynamic calculation of the binary systems M-Ga and investigation of ternary M-Ga-N phase equilibria (M=Ni, Co, Pd, Cr), JPE 20, 615-625 (1999). _assessment that models this phase_ ## FCC_A1 (Ga–Ni) - Id: `phase:ga-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 2 of 2 calculated diagram(s): 300–2499.63 K, x(Ni) 0.78634–1 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ni:fcc-a1) Names (4): _corpus: _corpus:phase:ga-ni:fcc-a1 _tdb: _tdb:GaNi-15Cao.tdb:A1_FCC, tdb:GaNi-15Cao.tdb:FCC_A1, tdb:GaNi-99Gro.tdb:FCC_A1 ### TDB models of FCC_A1 (3): PHASE and CONSTITUENT statements as written [GaNi-15Cao.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-15Cao.tdb): A1_FCC, type code %A, sha256 `51e5dcd730ebe85b…` ~~~~text 38: PHASE A1_FCC %A 2 1 1 ! 39: CONST A1_FCC : GA NI : VA : ! ~~~~ [GaNi-15Cao.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-15Cao.tdb): FCC_A1, type code %A, sha256 `51e5dcd730ebe85b…` ~~~~text 33: PHASE FCC_A1 %A 2 1 1 ! 34: CONST FCC_A1 : GA NI% : VA : ! ~~~~ [GaNi-99Gro.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-99Gro.tdb): FCC_A1, type code %A, sha256 `d9d13119777dc618…` ~~~~text 32: PHASE FCC_A1 %A 2 1 1 ! 33: CONST FCC_A1 : GA NI% : VA : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1007/s12598-014-0365-5](https://doi.org/10.1007/s12598-014-0365-5) Z.-M. Cao, X. Shi, W. Xie, I. Ohnuma, K. Ishida, Z.-Y. Qiao, Rare Met., 34, 864-72(2015). _assessment that models this phase_ - [doi:10.1361/105497199770340608](https://doi.org/10.1361/105497199770340608) J. Gröbner, R. Wenzel, G. G. Fischer, R. Schmid-Fetzer, Thermodynamic calculation of the binary systems M-Ga and investigation of ternary M-Ga-N phase equilibria (M=Ni, Co, Pd, Cr), JPE 20, 615-625 (1999). _assessment that models this phase_ ## L12_FCC (Ga–Ni) - Id: `phase:ga-ni:fcc-l12`; status `assigned` - Structure: AuCu3 · L1_2 · cP4 · Pm-3m (221); type `st:l1-2-aucu3-cp4`; tier A: standard phase name; confidence high - Caveat: GaNi-15Cao.tdb: ordered phase with disordered part A1_FCC (order/disorder model) - Caveat: partitioned order/disorder model in GaNi-15Cao.tdb also describes the disordered state - Stability: stable in 1 of 1 calculated diagram(s): 300–1728.02 K, x(Ni) 0.71082–1 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ni:fcc-l12) Names (2): _corpus: _corpus:phase:ga-ni:fcc-l12 _tdb: _tdb:GaNi-15Cao.tdb:L12_FCC ### TDB models of L12_FCC (1): PHASE and CONSTITUENT statements as written [GaNi-15Cao.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-15Cao.tdb): L12_FCC, type code %AY, sha256 `51e5dcd730ebe85b…` ~~~~text 43: PHASE L12_FCC %AY 3 0.75 0.25 1 ! 44: CONST L12_FCC : GA NI% : GA% NI : VA : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1007/s12598-014-0365-5](https://doi.org/10.1007/s12598-014-0365-5) Z.-M. Cao, X. Shi, W. Xie, I. Ohnuma, K. Ishida, Z.-Y. Qiao, Rare Met., 34, 864-72(2015). _assessment that models this phase_ ## GA2NI3 (Ga–Ni) - Id: `phase:ga-ni:ga2ni3`; status `assigned` - Structure: Ga9Ni13 · mC44 · C2/m (12); type `st:ga9ni13-mc44`; 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: Ga 0.4000, Ni 0.6000 - Stability: stable in 1 of 1 calculated diagram(s): 300–1227.63 K, x(Ni) 0.6–0.6 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ni:ga2ni3) Names (2): _corpus: _corpus:phase:ga-ni:ga2ni3 _tdb: _tdb:GaNi-99Gro.tdb:GA2NI3 ### TDB models of GA2NI3 (1): PHASE and CONSTITUENT statements as written [GaNi-99Gro.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-99Gro.tdb): GA2NI3, type code %, sha256 `d9d13119777dc618…` ~~~~text 73: PHASE GA2NI3 % 2 2 3 ! 74: CONST GA2NI3 : GA : NI : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1361/105497199770340608](https://doi.org/10.1361/105497199770340608) J. Gröbner, R. Wenzel, G. G. Fischer, R. Schmid-Fetzer, Thermodynamic calculation of the binary systems M-Ga and investigation of ternary M-Ga-N phase equilibria (M=Ni, Co, Pd, Cr), JPE 20, 615-625 (1999). _assessment that models this phase_ ## GA2NI3_B82 (Ga–Ni) - Id: `phase:ga-ni:ga2ni3-b82`; status `assigned` - Structure: InNi2 · B8_2 · hP6 · P6_3/mmc (194); type `st:b8-2-inni2-hp6`; tier A: standard phase name; confidence high - Stability: stable in 1 of 1 calculated diagram(s): 985.74–1212.15 K, x(Ni) 0.6319–0.6428 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ni:ga2ni3-b82) Names (2): _corpus: _corpus:phase:ga-ni:ga2ni3-b82 _tdb: _tdb:GaNi-15Cao.tdb:GA2NI3_B82 ### TDB models of GA2NI3_B82 (1): PHASE and CONSTITUENT statements as written [GaNi-15Cao.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-15Cao.tdb): GA2NI3_B82, type code %, sha256 `51e5dcd730ebe85b…` ~~~~text 88: PHASE GA2NI3_B82 % 3 1 1 1 ! 89: CONST GA2NI3_B82 : GA% NI : NI% VA : NI VA% : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1007/s12598-014-0365-5](https://doi.org/10.1007/s12598-014-0365-5) Z.-M. Cao, X. Shi, W. Xie, I. Ohnuma, K. Ishida, Z.-Y. Qiao, Rare Met., 34, 864-72(2015). _assessment that models this phase_ ## GA3NI2_D513 (Ga–Ni) - Id: `phase:ga-ni:ga3ni2-d513`; status `assigned` - Structure: Ni2Al3 · D5_13 · hP5 · P-3m1 (164); type `st:d5-13-ni2al3-hp5`; tier A: standard phase name; confidence high - Caveat: DFT agrees: on-hull mp-aaaaaqwj and oqmd-17266, space group 164 - Stoichiometry: Ga 0.6000, Ni 0.4000 - Stability: stable in 2 of 2 calculated diagram(s): 300–1237 K, x(Ni) 0.4–0.4 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ni:ga3ni2-d513) Names (5): _corpus: _corpus:phase:ga-ni:ga3ni2-d513 _mp: _mp:mp-aaaaaqwj _oqmd: _oqmd:oqmd-17266 _tdb: _tdb:GaNi-15Cao.tdb:GA3NI2_D513, tdb:GaNi-99Gro.tdb:GA3NI2_D513 ### TDB models of GA3NI2_D513 (2): PHASE and CONSTITUENT statements as written [GaNi-15Cao.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-15Cao.tdb): GA3NI2_D513, type code %, sha256 `51e5dcd730ebe85b…` ~~~~text 68: PHASE GA3NI2_D513 % 2 3 2 ! 69: CONST GA3NI2_D513 : GA : NI : ! ~~~~ [GaNi-99Gro.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-99Gro.tdb): GA3NI2_D513, type code %, sha256 `d9d13119777dc618…` ~~~~text 57: PHASE GA3NI2_D513 % 2 3 2 ! 58: CONST GA3NI2_D513 : GA : NI : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1007/s12598-014-0365-5](https://doi.org/10.1007/s12598-014-0365-5) Z.-M. Cao, X. Shi, W. Xie, I. Ohnuma, K. Ishida, Z.-Y. Qiao, Rare Met., 34, 864-72(2015). _assessment that models this phase_ - [doi:10.1361/105497199770340608](https://doi.org/10.1361/105497199770340608) J. Gröbner, R. Wenzel, G. G. Fischer, R. Schmid-Fetzer, Thermodynamic calculation of the binary systems M-Ga and investigation of ternary M-Ga-N phase equilibria (M=Ni, Co, Pd, Cr), JPE 20, 615-625 (1999). _assessment that models this phase_ ## GA3NI5 (Ga–Ni) - Id: `phase:ga-ni:ga3ni5`; status `assigned` - Structure: Ga3Pt5 · oC16 · Cmmm (65); type `st:ga3pt5-oc16`; 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_structure_token, off_stoichiometric_model); structure as stated in the SGTE crystallographic table for this phase name and system - Stability: stable in 2 of 2 calculated diagram(s): 300–1011.21 K, x(Ni) 0.625–0.65053 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ni:ga3ni5) Names (3): _corpus: _corpus:phase:ga-ni:ga3ni5 _tdb: _tdb:GaNi-15Cao.tdb:GA3NI5, tdb:GaNi-99Gro.tdb:GA3NI5 ### TDB models of GA3NI5 (2): PHASE and CONSTITUENT statements as written [GaNi-15Cao.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-15Cao.tdb): GA3NI5, type code %, sha256 `51e5dcd730ebe85b…` ~~~~text 93: PHASE GA3NI5 % 2 3 5 ! 94: CONST GA3NI5 : GA% NI : NI : ! ~~~~ [GaNi-99Gro.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-99Gro.tdb): GA3NI5, type code %, sha256 `d9d13119777dc618…` ~~~~text 78: PHASE GA3NI5 % 2 3 5 ! 79: CONST GA3NI5 : GA : NI : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1007/s12598-014-0365-5](https://doi.org/10.1007/s12598-014-0365-5) Z.-M. Cao, X. Shi, W. Xie, I. Ohnuma, K. Ishida, Z.-Y. Qiao, Rare Met., 34, 864-72(2015). _assessment that models this phase_ - [doi:10.1361/105497199770340608](https://doi.org/10.1361/105497199770340608) J. Gröbner, R. Wenzel, G. G. Fischer, R. Schmid-Fetzer, Thermodynamic calculation of the binary systems M-Ga and investigation of ternary M-Ga-N phase equilibria (M=Ni, Co, Pd, Cr), JPE 20, 615-625 (1999). _assessment that models this phase_ ## GA4NI (Ga–Ni) - Id: `phase:ga-ni:ga4ni`; status `assigned` - Structure: Ga4Ni · cI40 · I23 (197); type `st:ga4ni-ci40`; 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: Ga 0.8000, Ni 0.2000 - Stability: stable in 1 of 1 calculated diagram(s): 300–636.66 K, x(Ni) 0.2–0.2 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ni:ga4ni) Names (2): _corpus: _corpus:phase:ga-ni:ga4ni _tdb: _tdb:GaNi-99Gro.tdb:GA4NI ### TDB models of GA4NI (1): PHASE and CONSTITUENT statements as written [GaNi-99Gro.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-99Gro.tdb): GA4NI, type code %, sha256 `d9d13119777dc618…` ~~~~text 52: PHASE GA4NI % 2 4 1 ! 53: CONST GA4NI : GA : NI : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1361/105497199770340608](https://doi.org/10.1361/105497199770340608) J. Gröbner, R. Wenzel, G. G. Fischer, R. Schmid-Fetzer, Thermodynamic calculation of the binary systems M-Ga and investigation of ternary M-Ga-N phase equilibria (M=Ni, Co, Pd, Cr), JPE 20, 615-625 (1999). _assessment that models this phase_ ## GA4NI3 (Ga–Ni) - Id: `phase:ga-ni:ga4ni3`; status `assigned` - Structure: Ga4Ni3 · cI112 · Ia-3d (230); type `st:ga4ni3-ci112`; 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: Ga 0.5714, Ni 0.4286 - Stability: stable in 2 of 2 calculated diagram(s): 300–837.01 K, x(Ni) 0.42857–0.42857 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ni:ga4ni3) Names (3): _corpus: _corpus:phase:ga-ni:ga4ni3 _tdb: _tdb:GaNi-15Cao.tdb:GA4NI3, tdb:GaNi-99Gro.tdb:GA4NI3 ### TDB models of GA4NI3 (2): PHASE and CONSTITUENT statements as written [GaNi-15Cao.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-15Cao.tdb): GA4NI3, type code %, sha256 `51e5dcd730ebe85b…` ~~~~text 73: PHASE GA4NI3 % 2 4 3 ! 74: CONST GA4NI3 : GA : NI : ! ~~~~ [GaNi-99Gro.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-99Gro.tdb): GA4NI3, type code %, sha256 `d9d13119777dc618…` ~~~~text 62: PHASE GA4NI3 % 2 4 3 ! 63: CONST GA4NI3 : GA : NI : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1007/s12598-014-0365-5](https://doi.org/10.1007/s12598-014-0365-5) Z.-M. Cao, X. Shi, W. Xie, I. Ohnuma, K. Ishida, Z.-Y. Qiao, Rare Met., 34, 864-72(2015). _assessment that models this phase_ - [doi:10.1361/105497199770340608](https://doi.org/10.1361/105497199770340608) J. Gröbner, R. Wenzel, G. G. Fischer, R. Schmid-Fetzer, Thermodynamic calculation of the binary systems M-Ga and investigation of ternary M-Ga-N phase equilibria (M=Ni, Co, Pd, Cr), JPE 20, 615-625 (1999). _assessment that models this phase_ ## GA7NI3_D8F (Ga–Ni) - Id: `phase:ga-ni:ga7ni3-d8f`; status `assigned` - Structure: Ru3Sn7 · D8_f · cI40 · Im-3m (229); type `st:d8-f-ru3sn7-ci40`; tier A: standard phase name; confidence high - Caveat: DFT agrees: on-hull mp-aaaaayye and oqmd-24922, space group 229 - Stoichiometry: Ga 0.7000, Ni 0.3000 - Stability: stable in 1 of 1 calculated diagram(s): 300–661.01 K, x(Ni) 0.3–0.3 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ni:ga7ni3-d8f) Names (4): _corpus: _corpus:phase:ga-ni:ga7ni3-d8f _mp: _mp:mp-aaaaayye _oqmd: _oqmd:oqmd-24922 _tdb: _tdb:GaNi-15Cao.tdb:GA7NI3_D8F ### TDB models of GA7NI3_D8F (1): PHASE and CONSTITUENT statements as written [GaNi-15Cao.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-15Cao.tdb): GA7NI3_D8F, type code %, sha256 `51e5dcd730ebe85b…` ~~~~text 63: PHASE GA7NI3_D8F % 2 7 3 ! 64: CONST GA7NI3_D8F : GA : NI : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1007/s12598-014-0365-5](https://doi.org/10.1007/s12598-014-0365-5) Z.-M. Cao, X. Shi, W. Xie, I. Ohnuma, K. Ishida, Z.-Y. Qiao, Rare Met., 34, 864-72(2015). _assessment that models this phase_ ## GA9NI13 (Ga–Ni) - Id: `phase:ga-ni:ga9ni13`; status `assigned` - Structure: Ga9Ni13 · mC44 · C2/m (12); type `st:ga9ni13-mc44`; tier B: DFT-supported (unique MP + OQMD match); confidence high - Stoichiometry: Ga 0.4091, Ni 0.5909 - Stability: stable in 1 of 1 calculated diagram(s): 300–1070 K, x(Ni) 0.59091–0.59091 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ni:ga9ni13) Names (4): _corpus: _corpus:phase:ga-ni:ga9ni13 _mp: _mp:mp-aaaabfyj _oqmd: _oqmd:oqmd-17268 _tdb: _tdb:GaNi-15Cao.tdb:GA9NI13 ### TDB models of GA9NI13 (1): PHASE and CONSTITUENT statements as written [GaNi-15Cao.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-15Cao.tdb): GA9NI13, type code %, sha256 `51e5dcd730ebe85b…` ~~~~text 83: PHASE GA9NI13 % 2 9 13 ! 84: CONST GA9NI13 : GA : NI : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1007/s12598-014-0365-5](https://doi.org/10.1007/s12598-014-0365-5) Z.-M. Cao, X. Shi, W. Xie, I. Ohnuma, K. Ishida, Z.-Y. Qiao, Rare Met., 34, 864-72(2015). _assessment that models this phase_ ## GANI_B2 (Ga–Ni) - Id: `phase:ga-ni:gani-b2`; status `assigned` - Structure: CsCl · B2 · cP2 · Pm-3m (221); type `st:b2-cscl-cp2`; tier A: standard phase name; confidence high - Caveat: partitioned order/disorder model in GaNi-99Gro.tdb also describes the disordered state - Stability: stable in 2 of 2 calculated diagram(s): 300–1501.71 K, x(Ni) 0.4293–0.70039 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ni:gani-b2) Names (3): _corpus: _corpus:phase:ga-ni:gani-b2 _tdb: _tdb:GaNi-15Cao.tdb:GANI_B2, tdb:GaNi-99Gro.tdb:GANI_B2 ### TDB models of GANI_B2 (2): PHASE and CONSTITUENT statements as written [GaNi-15Cao.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-15Cao.tdb): GANI_B2, type code %, sha256 `51e5dcd730ebe85b…` ~~~~text 78: PHASE GANI_B2 % 2 1 1 ! 79: CONST GANI_B2 : GA% NI : NI% VA : ! ~~~~ [GaNi-99Gro.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-99Gro.tdb): GANI_B2, type code %, sha256 `d9d13119777dc618…` ~~~~text 67: PHASE GANI_B2 % 2 0.5 0.5 ! 68: CONST GANI_B2 : GA% NI : GA NI% : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1007/s12598-014-0365-5](https://doi.org/10.1007/s12598-014-0365-5) Z.-M. Cao, X. Shi, W. Xie, I. Ohnuma, K. Ishida, Z.-Y. Qiao, Rare Met., 34, 864-72(2015). _assessment that models this phase_ - [doi:10.1361/105497199770340608](https://doi.org/10.1361/105497199770340608) J. Gröbner, R. Wenzel, G. G. Fischer, R. Schmid-Fetzer, Thermodynamic calculation of the binary systems M-Ga and investigation of ternary M-Ga-N phase equilibria (M=Ni, Co, Pd, Cr), JPE 20, 615-625 (1999). _assessment that models this phase_ ## GANI3_L12 (Ga–Ni) - Id: `phase:ga-ni:gani3-l12`; status `assigned` - Structure: AuCu3 · L1_2 · cP4 · Pm-3m (221); type `st:l1-2-aucu3-cp4`; tier A: standard phase name; confidence high - Caveat: DFT agrees: on-hull mp-aaaaabfj and oqmd-30308, space group 221 - Stoichiometry: Ga 0.2500, Ni 0.7500 - Stability: stable in 1 of 1 calculated diagram(s): 300–1492.13 K, x(Ni) 0.75–0.75 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ni:gani3-l12) Names (4): _corpus: _corpus:phase:ga-ni:gani3-l12 _mp: _mp:mp-aaaaabfj _oqmd: _oqmd:oqmd-30308 _tdb: _tdb:GaNi-99Gro.tdb:GANI3_L12 ### TDB models of GANI3_L12 (1): PHASE and CONSTITUENT statements as written [GaNi-99Gro.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-99Gro.tdb): GANI3_L12, type code %, sha256 `d9d13119777dc618…` ~~~~text 83: PHASE GANI3_L12 % 2 1 3 ! 84: CONST GANI3_L12 : GA : NI : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1361/105497199770340608](https://doi.org/10.1361/105497199770340608) J. Gröbner, R. Wenzel, G. G. Fischer, R. Schmid-Fetzer, Thermodynamic calculation of the binary systems M-Ga and investigation of ternary M-Ga-N phase equilibria (M=Ni, Co, Pd, Cr), JPE 20, 615-625 (1999). _assessment that models this phase_ ## HCP_A3 (Ga–Ni) - Id: `phase:ga-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 2 calculated diagram(s) - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ni:hcp-a3) Names (3): _corpus: _corpus:phase:ga-ni:hcp-a3 _tdb: _tdb:GaNi-15Cao.tdb:HCP_A3, tdb:GaNi-99Gro.tdb:HCP_A3 ### TDB models of HCP_A3 (2): PHASE and CONSTITUENT statements as written [GaNi-15Cao.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-15Cao.tdb): HCP_A3, type code %A, sha256 `51e5dcd730ebe85b…` ~~~~text 53: PHASE HCP_A3 %A 2 1 0.5 ! 54: CONST HCP_A3 : GA NI : VA : ! ~~~~ [GaNi-99Gro.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-99Gro.tdb): HCP_A3, type code %A, sha256 `d9d13119777dc618…` ~~~~text 42: PHASE HCP_A3 %A 2 1 0.5 ! 43: CONST HCP_A3 : GA NI : VA : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1007/s12598-014-0365-5](https://doi.org/10.1007/s12598-014-0365-5) Z.-M. Cao, X. Shi, W. Xie, I. Ohnuma, K. Ishida, Z.-Y. Qiao, Rare Met., 34, 864-72(2015). _assessment that models this phase_ - [doi:10.1361/105497199770340608](https://doi.org/10.1361/105497199770340608) J. Gröbner, R. Wenzel, G. G. Fischer, R. Schmid-Fetzer, Thermodynamic calculation of the binary systems M-Ga and investigation of ternary M-Ga-N phase equilibria (M=Ni, Co, Pd, Cr), JPE 20, 615-625 (1999). _assessment that models this phase_ ## LIQUID (Ga–Ni) - Id: `phase:ga-ni:liquid`; status `assigned` - Structure: liquid; type `st:liquid`; liquid; confidence high - Stability: stable in 2 of 2 calculated diagram(s): 302.71–2500 K, x(Ni) 0–1 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ni:liquid) Names (3): _corpus: _corpus:phase:ga-ni:liquid _tdb: _tdb:GaNi-15Cao.tdb:LIQUID, tdb:GaNi-99Gro.tdb:LIQUID ### TDB models of LIQUID (2): PHASE and CONSTITUENT statements as written [GaNi-15Cao.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-15Cao.tdb): LIQUID, type code %, sha256 `51e5dcd730ebe85b…` ~~~~text 28: PHASE LIQUID:L % 1 1 ! 29: CONST LIQUID:L : GA NI : ! ~~~~ [GaNi-99Gro.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNi-99Gro.tdb): LIQUID, type code %, sha256 `d9d13119777dc618…` ~~~~text 27: PHASE LIQUID:L % 1 1 ! 28: CONST LIQUID:L : GA NI : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1007/s12598-014-0365-5](https://doi.org/10.1007/s12598-014-0365-5) Z.-M. Cao, X. Shi, W. Xie, I. Ohnuma, K. Ishida, Z.-Y. Qiao, Rare Met., 34, 864-72(2015). _assessment that models this phase_ - [doi:10.1361/105497199770340608](https://doi.org/10.1361/105497199770340608) J. Gröbner, R. Wenzel, G. G. Fischer, R. Schmid-Fetzer, Thermodynamic calculation of the binary systems M-Ga and investigation of ternary M-Ga-N phase equilibria (M=Ni, Co, Pd, Cr), JPE 20, 615-625 (1999). _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).