# Ga–Ti phases

> Ga–Ti system: 13 phases (tier A 9, tier B 1, tier C 2, liquid 1); 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/GA-TI.html · Markdown: https://data.orchid-project.org/phases/pages/GA-TI.md

13 phases (tier A 9, tier B 1, tier C 2, liquid 1); 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=GA-TI) · [full JSON](https://data.orchid-project.org/phases/systems/GA-TI.json) · [Ga–Ti system page](https://data.orchid-project.org/systems/GA-TI.html) · [Markdown](https://data.orchid-project.org/phases/pages/GA-TI.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md)

Table: Phases of the Ga–Ti system (13)

| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---:|---:|
| [ORTHORHOMBIC_A11](#phase-ga-ti-a11-orthorhombic); _phase:ga-ti:a11-orthorhombic_ | alpha-Ga · A11 · oC8 · Cmce (64) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–302.91 K, x(Ti) 0–0 | 0 | 2 |
| [BCC_A2](#phase-ga-ti-bcc-a2); _phase:ga-ti:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 1154.99–2499.04 K, x(Ti) 0.73134–1 | 27 | 2 |
| [FCC_A1](#phase-ga-ti-fcc-a1); _phase:ga-ti:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | not stable in 2 calculated diagram(s) | 0 | 2 |
| [GA2TI](#phase-ga-ti-ga2ti); _phase:ga-ti:ga2ti_ | Ga2Hf · tI24 · I4_1/amd (141) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 2 of 2 calculated diagram(s): 300–1439.64 K, x(Ti) 0.33333–0.33333 | 52 | 2 |
| [GA3TI_D022](#phase-ga-ti-ga3ti-d022); _phase:ga-ti:ga3ti-d022_ | Al3Ti · D0_22 · tI8 · I4/mmm (139) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–1203.07 K, x(Ti) 0.25–0.25 | 15 | 2 |
| [GA3TI2](#phase-ga-ti-ga3ti2); _phase:ga-ti:ga3ti2_ | Ga3Ti2 · tP10 · P4/m (83) | tier B: DFT-supported (unique MP + OQMD match) | stable in 2 of 2 calculated diagram(s): 300–1400 K, x(Ti) 0.4–0.4 | 19 | 2 |
| [GA3TI5_D8M](#phase-ga-ti-ga3ti5-d8m); _phase:ga-ti:ga3ti5-d8m_ | W5Si3 · D8_m · tI32 · I4/mcm (140) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–1711.43 K, x(Ti) 0.625–0.625 | 21 | 2 |
| [GA4TI5](#phase-ga-ti-ga4ti5); _phase:ga-ti:ga4ti5_ | Ga4Ti5 · hP18 · P6_3/mcm (193) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 2 of 2 calculated diagram(s): 300–1714 K, x(Ti) 0.51907–0.59425 | 31 | 2 |
| [GATI_L10](#phase-ga-ti-gati-l10); _phase:ga-ti:gati-l10_ | AuCu · L1_0 · tP4 · P4/mmm (123) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–1523.84 K, x(Ti) 0.40583–0.49669 | 25 | 2 |
| [GATI2_B82](#phase-ga-ti-gati2-b82); _phase:ga-ti:gati2-b82_ | InNi2 · B8_2 · hP6 · P6_3/mmc (194) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–1704.7 K, x(Ti) 0.66667–0.66667 | 30 | 2 |
| [GATI3_D019](#phase-ga-ti-gati3-d019); _phase:ga-ti:gati3-d019_ | Ni3Sn · D0_19 · hP8 · P6_3/mmc (194) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–1303.07 K, x(Ti) 0.74469–0.77565 | 18 | 2 |
| [HCP_A3](#phase-ga-ti-hcp-a3); _phase:ga-ti:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–1213.16 K, x(Ti) 0.83347–1 | 6 | 2 |
| [LIQUID](#phase-ga-ti-liquid); _phase:ga-ti:liquid_ | liquid | liquid | stable in 2 of 2 calculated diagram(s): 302.91–2500 K, x(Ti) 0–1 | 76 | 2 |

## ORTHORHOMBIC_A11 (Ga–Ti)

- Id: `phase:ga-ti: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): 300–302.91 K, x(Ti) 0–0
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ti:a11-orthorhombic)

Names (3): _corpus: _corpus:phase:ga-ti:a11-orthorhombic  
_tdb: _tdb:GaTi-03Li-LB.tdb:ORTHORHOMBIC_A11, tdb:GaTi-13Liu.tdb:ORTHORHOMBIC_A11  


### TDB models of ORTHORHOMBIC_A11 (2): PHASE and CONSTITUENT statements as written

[GaTi-03Li-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-03Li-LB.tdb): ORTHORHOMBIC_A11, type code %, sha256 `6a0eb378d2ba649f…`

~~~~text
50: PHASE ORTHORHOMBIC_A11 % 1 1 !
51: CONST ORTHORHOMBIC_A11 : GA : !
~~~~

[GaTi-13Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-13Liu.tdb): ORTHORHOMBIC_A11, type code %, sha256 `d69a6604a978c231…`

~~~~text
44: PHASE ORTHORHOMBIC_A11 % 1 1 !
45: CONST ORTHORHOMBIC_A11 : GA : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1016/j.calphad.2013.02.003](https://doi.org/10.1016/j.calphad.2013.02.003) Y. Liu, J.C. Tedenac, X.P. Su, C. Colinet, J.H. Wang, An updated thermodynamic modeling of the Ga–Ti system, Calphad 41, 140-149 (2013).  
_assessment that models this phase_
- [doi:10.1016/S0925-8388(03)00131-2](https://doi.org/10.1016/S0925-8388%2803%2900131-2) J.-B. Li, J.-C. Tedenac, M.-C. Record, J. Alloys Compd., 358, 133-41(2003).  
_assessment that models this phase_

## BCC_A2 (Ga–Ti)

- Id: `phase:ga-ti: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 2 of 2 calculated diagram(s): 1154.99–2499.04 K, x(Ti) 0.73134–1
- Literature: 27 values (27 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ti:bcc-a2)

Names (5): _corpus: _corpus:phase:ga-ti:bcc-a2  
_paper: _paper:10.1016/j.calphad.2013.02.003:b.c.c.(Ti), paper:10.1016/s0925-8388(03)00131-2:b.c.c.(Ti)  
_tdb: _tdb:GaTi-03Li-LB.tdb:BCC_A2, tdb:GaTi-13Liu.tdb:BCC_A2  


### TDB models of BCC_A2 (2): PHASE and CONSTITUENT statements as written

[GaTi-03Li-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-03Li-LB.tdb): BCC_A2, type code %B, sha256 `6a0eb378d2ba649f…`

~~~~text
40: PHASE BCC_A2 %B 2 1 3 !
41: CONST BCC_A2 : GA TI% : VA : !
~~~~

[GaTi-13Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-13Liu.tdb): BCC_A2, type code %B, sha256 `d69a6604a978c231…`

~~~~text
34: PHASE BCC_A2 %B 2 1 3 !
35: CONST BCC_A2 : GA TI% : VA : !
~~~~

Example references (4 of 4; assessments first): 

- [doi:10.1016/j.calphad.2013.02.003](https://doi.org/10.1016/j.calphad.2013.02.003) Y. Liu, J.C. Tedenac, X.P. Su, C. Colinet, J.H. Wang, An updated thermodynamic modeling of the Ga–Ti system, Calphad 41, 140-149 (2013).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/S0925-8388(03)00131-2](https://doi.org/10.1016/S0925-8388%2803%2900131-2) J.-B. Li, J.-C. Tedenac, M.-C. Record, J. Alloys Compd., 358, 133-41(2003).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/s0925-8388(00)01416-x](https://doi.org/10.1016/s0925-8388%2800%2901416-x) N.V. Antonova, L.A. Tretyachenko, Phase diagram of the Ti–Ga system, Journal of Alloys and Compounds 317-318, 398-405 (2001).  
_cited as the source of values for this phase_
- [doi:10.1007/bf00638248](https://doi.org/10.1007/bf00638248) Kurt Anderko, Ulrich Zwicker, Beitrag zur Konstitution des Systems Titan-Gallium, Naturwissenschaften 44, 510-510 (1957).  
_cited as the source of values for this phase_

## FCC_A1 (Ga–Ti)

- Id: `phase:ga-ti:fcc-a1`; status `assigned`
- Structure: Cu · A1 · cF4 · Fm-3m (225); type `st:a1-cu-cf4`; 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-ti:fcc-a1)

Names (3): _corpus: _corpus:phase:ga-ti:fcc-a1  
_tdb: _tdb:GaTi-03Li-LB.tdb:FCC_A1, tdb:GaTi-13Liu.tdb:FCC_A1  


### TDB models of FCC_A1 (2): PHASE and CONSTITUENT statements as written

[GaTi-03Li-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-03Li-LB.tdb): FCC_A1, type code %A, sha256 `6a0eb378d2ba649f…`

~~~~text
35: PHASE FCC_A1 %A 2 1 1 !
36: CONST FCC_A1 : GA TI : VA : !
~~~~

[GaTi-13Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-13Liu.tdb): FCC_A1, type code %A, sha256 `d69a6604a978c231…`

~~~~text
29: PHASE FCC_A1 %A 2 1 1 !
30: CONST FCC_A1 : GA TI : VA : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1016/j.calphad.2013.02.003](https://doi.org/10.1016/j.calphad.2013.02.003) Y. Liu, J.C. Tedenac, X.P. Su, C. Colinet, J.H. Wang, An updated thermodynamic modeling of the Ga–Ti system, Calphad 41, 140-149 (2013).  
_assessment that models this phase_
- [doi:10.1016/S0925-8388(03)00131-2](https://doi.org/10.1016/S0925-8388%2803%2900131-2) J.-B. Li, J.-C. Tedenac, M.-C. Record, J. Alloys Compd., 358, 133-41(2003).  
_assessment that models this phase_

## GA2TI (Ga–Ti)

- Id: `phase:ga-ti:ga2ti`; status `assigned`
- Structure: Ga2Hf · tI24 · I4_1/amd (141); type `st:ga2hf-ti24`; 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_141_matches_5_structure_types, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Ga 0.6667, Ti 0.3333
- Stability: stable in 2 of 2 calculated diagram(s): 300–1439.64 K, x(Ti) 0.33333–0.33333
- Literature: 52 values (52 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ti:ga2ti)

Names (5): _corpus: _corpus:phase:ga-ti:ga2ti  
_paper: _paper:10.1016/j.calphad.2013.02.003:Ga2Ti, paper:10.1016/s0925-8388(03)00131-2:Ga2Ti  
_tdb: _tdb:GaTi-03Li-LB.tdb:GA2TI, tdb:GaTi-13Liu.tdb:GA2TI  


### TDB models of GA2TI (2): PHASE and CONSTITUENT statements as written

[GaTi-03Li-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-03Li-LB.tdb): GA2TI, type code %, sha256 `6a0eb378d2ba649f…`

~~~~text
60: PHASE GA2TI % 2 2 1 !
61: CONST GA2TI : GA : TI : !
~~~~

[GaTi-13Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-13Liu.tdb): GA2TI, type code %, sha256 `d69a6604a978c231…`

~~~~text
54: PHASE GA2TI % 2 2 1 !
55: CONST GA2TI : GA : TI : !
~~~~

Example references (5 of 5; assessments first): 

- [doi:10.1016/j.calphad.2013.02.003](https://doi.org/10.1016/j.calphad.2013.02.003) Y. Liu, J.C. Tedenac, X.P. Su, C. Colinet, J.H. Wang, An updated thermodynamic modeling of the Ga–Ti system, Calphad 41, 140-149 (2013).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/S0925-8388(03)00131-2](https://doi.org/10.1016/S0925-8388%2803%2900131-2) J.-B. Li, J.-C. Tedenac, M.-C. Record, J. Alloys Compd., 358, 133-41(2003).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/s0925-8388(00)01416-x](https://doi.org/10.1016/s0925-8388%2800%2901416-x) N.V. Antonova, L.A. Tretyachenko, Phase diagram of the Ti–Ga system, Journal of Alloys and Compounds 317-318, 398-405 (2001).  
_cited as the source of values for this phase_
- [doi:10.1016/0378-4371(84)90096-7](https://doi.org/10.1016/0378-4371%2884%2990096-7) J.M. Sanchez, F. Ducastelle, D. Gratias, Generalized cluster description of multicomponent systems, Physica A: Statistical Mechanics and its Applications 128, 334-350 (1984).  
_cited as the source of values for this phase_
- [doi:10.1016/j.calphad.2010.12.003](https://doi.org/10.1016/j.calphad.2010.12.003) C. Colinet, J.-C. Tedenac, CALPHAD 35 (2011) 133–141.  
_cited as the source of values for this phase_

## GA3TI_D022 (Ga–Ti)

- Id: `phase:ga-ti:ga3ti-d022`; status `assigned`
- Structure: Al3Ti · D0_22 · tI8 · I4/mmm (139); type `st:d0-22-al3ti-ti8`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaaaaebb and oqmd-16807, space group 139
- Stoichiometry: Ga 0.7500, Ti 0.2500
- Stability: stable in 2 of 2 calculated diagram(s): 300–1203.07 K, x(Ti) 0.25–0.25
- Literature: 15 values (15 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ti:ga3ti-d022)

Names (7): _corpus: _corpus:phase:ga-ti:ga3ti-d022  
_mp: _mp:mp-aaaaaebb  
_oqmd: _oqmd:oqmd-16807  
_paper: _paper:10.1016/j.calphad.2013.02.003:Ga3Ti, paper:10.1016/s0925-8388(03)00131-2:Ga3Ti  
_tdb: _tdb:GaTi-03Li-LB.tdb:GA3TI_D022, tdb:GaTi-13Liu.tdb:GA3TI_D022  


### TDB models of GA3TI_D022 (2): PHASE and CONSTITUENT statements as written

[GaTi-03Li-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-03Li-LB.tdb): GA3TI_D022, type code %, sha256 `6a0eb378d2ba649f…`

~~~~text
55: PHASE GA3TI_D022 % 2 3 1 !
56: CONST GA3TI_D022 : GA : TI : !
~~~~

[GaTi-13Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-13Liu.tdb): GA3TI_D022, type code %, sha256 `d69a6604a978c231…`

~~~~text
49: PHASE GA3TI_D022 % 2 3 1 !
50: CONST GA3TI_D022 : GA : TI : !
~~~~

Example references (5 of 5; assessments first): 

- [doi:10.1016/j.calphad.2013.02.003](https://doi.org/10.1016/j.calphad.2013.02.003) Y. Liu, J.C. Tedenac, X.P. Su, C. Colinet, J.H. Wang, An updated thermodynamic modeling of the Ga–Ti system, Calphad 41, 140-149 (2013).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/S0925-8388(03)00131-2](https://doi.org/10.1016/S0925-8388%2803%2900131-2) J.-B. Li, J.-C. Tedenac, M.-C. Record, J. Alloys Compd., 358, 133-41(2003).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/s0925-8388(00)01416-x](https://doi.org/10.1016/s0925-8388%2800%2901416-x) N.V. Antonova, L.A. Tretyachenko, Phase diagram of the Ti–Ga system, Journal of Alloys and Compounds 317-318, 398-405 (2001).  
_cited as the source of values for this phase_
- [doi:10.1016/0378-4371(84)90096-7](https://doi.org/10.1016/0378-4371%2884%2990096-7) J.M. Sanchez, F. Ducastelle, D. Gratias, Generalized cluster description of multicomponent systems, Physica A: Statistical Mechanics and its Applications 128, 334-350 (1984).  
_cited as the source of values for this phase_
- [doi:10.1016/j.calphad.2010.12.003](https://doi.org/10.1016/j.calphad.2010.12.003) C. Colinet, J.-C. Tedenac, CALPHAD 35 (2011) 133–141.  
_cited as the source of values for this phase_

## GA3TI2 (Ga–Ti)

- Id: `phase:ga-ti:ga3ti2`; status `assigned`
- Structure: Ga3Ti2 · tP10 · P4/m (83); type `st:ga3ti2-tp10`; tier B: DFT-supported (unique MP + OQMD match); confidence high
- Stoichiometry: Ga 0.6000, Ti 0.4000
- Stability: stable in 2 of 2 calculated diagram(s): 300–1400 K, x(Ti) 0.4–0.4
- Literature: 19 values (19 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ti:ga3ti2)

Names (7): _corpus: _corpus:phase:ga-ti:ga3ti2  
_mp: _mp:mp-aaaabtjt  
_oqmd: _oqmd:oqmd-17307  
_paper: _paper:10.1016/j.calphad.2013.02.003:Ga3Ti2, paper:10.1016/s0925-8388(03)00131-2:Ga3Ti2  
_tdb: _tdb:GaTi-03Li-LB.tdb:GA3TI2, tdb:GaTi-13Liu.tdb:GA3TI2  


### TDB models of GA3TI2 (2): PHASE and CONSTITUENT statements as written

[GaTi-03Li-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-03Li-LB.tdb): GA3TI2, type code %, sha256 `6a0eb378d2ba649f…`

~~~~text
65: PHASE GA3TI2 % 2 3 2 !
66: CONST GA3TI2 : GA : TI : !
~~~~

[GaTi-13Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-13Liu.tdb): GA3TI2, type code %, sha256 `d69a6604a978c231…`

~~~~text
59: PHASE GA3TI2 % 2 3 2 !
60: CONST GA3TI2 : GA : TI : !
~~~~

Example references (5 of 5; assessments first): 

- [doi:10.1016/j.calphad.2013.02.003](https://doi.org/10.1016/j.calphad.2013.02.003) Y. Liu, J.C. Tedenac, X.P. Su, C. Colinet, J.H. Wang, An updated thermodynamic modeling of the Ga–Ti system, Calphad 41, 140-149 (2013).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/S0925-8388(03)00131-2](https://doi.org/10.1016/S0925-8388%2803%2900131-2) J.-B. Li, J.-C. Tedenac, M.-C. Record, J. Alloys Compd., 358, 133-41(2003).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/s0925-8388(00)01416-x](https://doi.org/10.1016/s0925-8388%2800%2901416-x) N.V. Antonova, L.A. Tretyachenko, Phase diagram of the Ti–Ga system, Journal of Alloys and Compounds 317-318, 398-405 (2001).  
_cited as the source of values for this phase_
- [doi:10.1016/0378-4371(84)90096-7](https://doi.org/10.1016/0378-4371%2884%2990096-7) J.M. Sanchez, F. Ducastelle, D. Gratias, Generalized cluster description of multicomponent systems, Physica A: Statistical Mechanics and its Applications 128, 334-350 (1984).  
_cited as the source of values for this phase_
- [doi:10.1016/j.calphad.2010.12.003](https://doi.org/10.1016/j.calphad.2010.12.003) C. Colinet, J.-C. Tedenac, CALPHAD 35 (2011) 133–141.  
_cited as the source of values for this phase_

## GA3TI5_D8M (Ga–Ti)

- Id: `phase:ga-ti:ga3ti5-d8m`; status `assigned`
- Structure: W5Si3 · D8_m · tI32 · I4/mcm (140); type `st:d8-m-w5si3-ti32`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaacppqf and oqmd-2017668, space group 140
- Stoichiometry: Ga 0.3750, Ti 0.6250
- Stability: stable in 2 of 2 calculated diagram(s): 300–1711.43 K, x(Ti) 0.625–0.625
- Literature: 21 values (21 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ti:ga3ti5-d8m)

Names (7): _corpus: _corpus:phase:ga-ti:ga3ti5-d8m  
_mp: _mp:mp-aaacppqf  
_oqmd: _oqmd:oqmd-2017668  
_paper: _paper:10.1016/j.calphad.2013.02.003:Ga3Ti5, paper:10.1016/s0925-8388(03)00131-2:Ga3Ti5  
_tdb: _tdb:GaTi-03Li-LB.tdb:GA3TI5_D8M, tdb:GaTi-13Liu.tdb:GA3TI5_D8M  


### TDB models of GA3TI5_D8M (2): PHASE and CONSTITUENT statements as written

[GaTi-03Li-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-03Li-LB.tdb): GA3TI5_D8M, type code %, sha256 `6a0eb378d2ba649f…`

~~~~text
80: PHASE GA3TI5_D8M % 2 3 5 !
81: CONST GA3TI5_D8M : GA : TI : !
~~~~

[GaTi-13Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-13Liu.tdb): GA3TI5_D8M, type code %, sha256 `d69a6604a978c231…`

~~~~text
74: PHASE GA3TI5_D8M % 2 3 5 !
75: CONST GA3TI5_D8M : GA : TI : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1016/j.calphad.2013.02.003](https://doi.org/10.1016/j.calphad.2013.02.003) Y. Liu, J.C. Tedenac, X.P. Su, C. Colinet, J.H. Wang, An updated thermodynamic modeling of the Ga–Ti system, Calphad 41, 140-149 (2013).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/S0925-8388(03)00131-2](https://doi.org/10.1016/S0925-8388%2803%2900131-2) J.-B. Li, J.-C. Tedenac, M.-C. Record, J. Alloys Compd., 358, 133-41(2003).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/s0925-8388(00)01416-x](https://doi.org/10.1016/s0925-8388%2800%2901416-x) N.V. Antonova, L.A. Tretyachenko, Phase diagram of the Ti–Ga system, Journal of Alloys and Compounds 317-318, 398-405 (2001).  
_cited as the source of values for this phase_

## GA4TI5 (Ga–Ti)

- Id: `phase:ga-ti:ga4ti5`; status `assigned`
- Structure: Ga4Ti5 · hP18 · P6_3/mcm (193); type `st:ga4ti5-hp18`; 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): 300–1714 K, x(Ti) 0.51907–0.59425
- Literature: 31 values (31 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ti:ga4ti5)

Names (5): _corpus: _corpus:phase:ga-ti:ga4ti5  
_paper: _paper:10.1016/j.calphad.2013.02.003:Ga4Ti5, paper:10.1016/s0925-8388(03)00131-2:Ga4Ti5  
_tdb: _tdb:GaTi-03Li-LB.tdb:GA4TI5, tdb:GaTi-13Liu.tdb:GA4TI5  


### TDB models of GA4TI5 (2): PHASE and CONSTITUENT statements as written

[GaTi-03Li-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-03Li-LB.tdb): GA4TI5, type code %, sha256 `6a0eb378d2ba649f…`

~~~~text
75: PHASE GA4TI5 % 2 4 5 !
76: CONST GA4TI5 : GA% TI : GA TI% : !
~~~~

[GaTi-13Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-13Liu.tdb): GA4TI5, type code %, sha256 `d69a6604a978c231…`

~~~~text
69: PHASE GA4TI5 % 2 4 5 !
70: CONST GA4TI5 : GA% TI : GA TI% : !
~~~~

Example references (5 of 5; assessments first): 

- [doi:10.1016/j.calphad.2013.02.003](https://doi.org/10.1016/j.calphad.2013.02.003) Y. Liu, J.C. Tedenac, X.P. Su, C. Colinet, J.H. Wang, An updated thermodynamic modeling of the Ga–Ti system, Calphad 41, 140-149 (2013).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/S0925-8388(03)00131-2](https://doi.org/10.1016/S0925-8388%2803%2900131-2) J.-B. Li, J.-C. Tedenac, M.-C. Record, J. Alloys Compd., 358, 133-41(2003).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/s0925-8388(00)01416-x](https://doi.org/10.1016/s0925-8388%2800%2901416-x) N.V. Antonova, L.A. Tretyachenko, Phase diagram of the Ti–Ga system, Journal of Alloys and Compounds 317-318, 398-405 (2001).  
_cited as the source of values for this phase_
- [doi:10.1016/0378-4371(84)90096-7](https://doi.org/10.1016/0378-4371%2884%2990096-7) J.M. Sanchez, F. Ducastelle, D. Gratias, Generalized cluster description of multicomponent systems, Physica A: Statistical Mechanics and its Applications 128, 334-350 (1984).  
_cited as the source of values for this phase_
- [doi:10.1016/j.calphad.2010.12.003](https://doi.org/10.1016/j.calphad.2010.12.003) C. Colinet, J.-C. Tedenac, CALPHAD 35 (2011) 133–141.  
_cited as the source of values for this phase_

## GATI_L10 (Ga–Ti)

- Id: `phase:ga-ti:gati-l10`; status `assigned`
- Structure: AuCu · L1_0 · tP4 · P4/mmm (123); type `st:l1-0-aucu-tp4`; tier A: standard phase name; confidence high
- Caveat: partitioned order/disorder model in GaTi-03Li-LB.tdb also describes the disordered state
- Caveat: partitioned order/disorder model in GaTi-13Liu.tdb also describes the disordered state
- Stability: stable in 2 of 2 calculated diagram(s): 300–1523.84 K, x(Ti) 0.40583–0.49669
- Literature: 25 values (25 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ti:gati-l10)

Names (5): _corpus: _corpus:phase:ga-ti:gati-l10  
_paper: _paper:10.1016/j.calphad.2013.02.003:GaTi, paper:10.1016/s0925-8388(03)00131-2:GaTi  
_tdb: _tdb:GaTi-03Li-LB.tdb:GATI_L10, tdb:GaTi-13Liu.tdb:GATI_L10  


### TDB models of GATI_L10 (2): PHASE and CONSTITUENT statements as written

[GaTi-03Li-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-03Li-LB.tdb): GATI_L10, type code %, sha256 `6a0eb378d2ba649f…`

~~~~text
70: PHASE GATI_L10 % 2 1 1 !
71: CONST GATI_L10 : GA% TI : GA TI% : !
~~~~

[GaTi-13Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-13Liu.tdb): GATI_L10, type code %, sha256 `d69a6604a978c231…`

~~~~text
64: PHASE GATI_L10 % 2 1 1 !
65: CONST GATI_L10 : GA% TI : GA TI% : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1016/S0925-8388(03)00131-2](https://doi.org/10.1016/S0925-8388%2803%2900131-2) J.-B. Li, J.-C. Tedenac, M.-C. Record, J. Alloys Compd., 358, 133-41(2003).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2013.02.003](https://doi.org/10.1016/j.calphad.2013.02.003) Y. Liu, J.C. Tedenac, X.P. Su, C. Colinet, J.H. Wang, An updated thermodynamic modeling of the Ga–Ti system, Calphad 41, 140-149 (2013).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/s0925-8388(00)01416-x](https://doi.org/10.1016/s0925-8388%2800%2901416-x) N.V. Antonova, L.A. Tretyachenko, Phase diagram of the Ti–Ga system, Journal of Alloys and Compounds 317-318, 398-405 (2001).  
_cited as the source of values for this phase_

## GATI2_B82 (Ga–Ti)

- Id: `phase:ga-ti:gati2-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
- Caveat: DFT agrees: on-hull mp-aaaabtjr and oqmd-22484, space group 194
- Stoichiometry: Ga 0.3333, Ti 0.6667
- Stability: stable in 2 of 2 calculated diagram(s): 300–1704.7 K, x(Ti) 0.66667–0.66667
- Literature: 30 values (30 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ti:gati2-b82)

Names (7): _corpus: _corpus:phase:ga-ti:gati2-b82  
_mp: _mp:mp-aaaabtjr  
_oqmd: _oqmd:oqmd-22484  
_paper: _paper:10.1016/j.calphad.2013.02.003:GaTi2, paper:10.1016/s0925-8388(03)00131-2:GaTi2  
_tdb: _tdb:GaTi-03Li-LB.tdb:GATI2_B82, tdb:GaTi-13Liu.tdb:GATI2_B82  


### TDB models of GATI2_B82 (2): PHASE and CONSTITUENT statements as written

[GaTi-03Li-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-03Li-LB.tdb): GATI2_B82, type code %, sha256 `6a0eb378d2ba649f…`

~~~~text
85: PHASE GATI2_B82 % 2 1 2 !
86: CONST GATI2_B82 : GA : TI : !
~~~~

[GaTi-13Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-13Liu.tdb): GATI2_B82, type code %, sha256 `d69a6604a978c231…`

~~~~text
79: PHASE GATI2_B82 % 2 1 2 !
80: CONST GATI2_B82 : GA : TI : !
~~~~

Example references (4 of 4; assessments first): 

- [doi:10.1016/j.calphad.2013.02.003](https://doi.org/10.1016/j.calphad.2013.02.003) Y. Liu, J.C. Tedenac, X.P. Su, C. Colinet, J.H. Wang, An updated thermodynamic modeling of the Ga–Ti system, Calphad 41, 140-149 (2013).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/S0925-8388(03)00131-2](https://doi.org/10.1016/S0925-8388%2803%2900131-2) J.-B. Li, J.-C. Tedenac, M.-C. Record, J. Alloys Compd., 358, 133-41(2003).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/s0925-8388(00)01416-x](https://doi.org/10.1016/s0925-8388%2800%2901416-x) N.V. Antonova, L.A. Tretyachenko, Phase diagram of the Ti–Ga system, Journal of Alloys and Compounds 317-318, 398-405 (2001).  
_cited as the source of values for this phase_
- [doi:10.1007/bf00638248](https://doi.org/10.1007/bf00638248) Kurt Anderko, Ulrich Zwicker, Beitrag zur Konstitution des Systems Titan-Gallium, Naturwissenschaften 44, 510-510 (1957).  
_cited as the source of values for this phase_

## GATI3_D019 (Ga–Ti)

- Id: `phase:ga-ti:gati3-d019`; status `assigned`
- Structure: Ni3Sn · D0_19 · hP8 · P6_3/mmc (194); type `st:d0-19-ni3sn-hp8`; tier A: standard phase name; confidence high
- Caveat: partitioned order/disorder model in GaTi-03Li-LB.tdb also describes the disordered state
- Caveat: partitioned order/disorder model in GaTi-13Liu.tdb also describes the disordered state
- Stability: stable in 2 of 2 calculated diagram(s): 300–1303.07 K, x(Ti) 0.74469–0.77565
- Literature: 18 values (18 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ti:gati3-d019)

Names (5): _corpus: _corpus:phase:ga-ti:gati3-d019  
_paper: _paper:10.1016/j.calphad.2013.02.003:GaTi3, paper:10.1016/s0925-8388(03)00131-2:GaTi3  
_tdb: _tdb:GaTi-03Li-LB.tdb:GATI3_D019, tdb:GaTi-13Liu.tdb:GATI3_D019  


### TDB models of GATI3_D019 (2): PHASE and CONSTITUENT statements as written

[GaTi-03Li-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-03Li-LB.tdb): GATI3_D019, type code %, sha256 `6a0eb378d2ba649f…`

~~~~text
90: PHASE GATI3_D019 % 2 1 3 !
91: CONST GATI3_D019 : GA% TI : GA TI% : !
~~~~

[GaTi-13Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-13Liu.tdb): GATI3_D019, type code %, sha256 `d69a6604a978c231…`

~~~~text
84: PHASE GATI3_D019 % 2 1 3 !
85: CONST GATI3_D019 : GA% TI : GA TI% : !
~~~~

Example references (4 of 4; assessments first): 

- [doi:10.1016/j.calphad.2013.02.003](https://doi.org/10.1016/j.calphad.2013.02.003) Y. Liu, J.C. Tedenac, X.P. Su, C. Colinet, J.H. Wang, An updated thermodynamic modeling of the Ga–Ti system, Calphad 41, 140-149 (2013).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/S0925-8388(03)00131-2](https://doi.org/10.1016/S0925-8388%2803%2900131-2) J.-B. Li, J.-C. Tedenac, M.-C. Record, J. Alloys Compd., 358, 133-41(2003).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1007/bf00638248](https://doi.org/10.1007/bf00638248) Kurt Anderko, Ulrich Zwicker, Beitrag zur Konstitution des Systems Titan-Gallium, Naturwissenschaften 44, 510-510 (1957).  
_cited as the source of values for this phase_
- [doi:10.1016/s0925-8388(00)01416-x](https://doi.org/10.1016/s0925-8388%2800%2901416-x) N.V. Antonova, L.A. Tretyachenko, Phase diagram of the Ti–Ga system, Journal of Alloys and Compounds 317-318, 398-405 (2001).  
_cited as the source of values for this phase_

## HCP_A3 (Ga–Ti)

- Id: `phase:ga-ti: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 2 of 2 calculated diagram(s): 300–1213.16 K, x(Ti) 0.83347–1
- Literature: 6 values (6 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ti:hcp-a3)

Names (5): _corpus: _corpus:phase:ga-ti:hcp-a3  
_paper: _paper:10.1016/j.calphad.2013.02.003:h.c.p.(Ti), paper:10.1016/s0925-8388(03)00131-2:h.c.p.(Ti)  
_tdb: _tdb:GaTi-03Li-LB.tdb:HCP_A3, tdb:GaTi-13Liu.tdb:HCP_A3  


### TDB models of HCP_A3 (2): PHASE and CONSTITUENT statements as written

[GaTi-03Li-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-03Li-LB.tdb): HCP_A3, type code %, sha256 `6a0eb378d2ba649f…`

~~~~text
45: PHASE HCP_A3 % 2 1 0.5 !
46: CONST HCP_A3 : GA TI% : VA : !
~~~~

[GaTi-13Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-13Liu.tdb): HCP_A3, type code %, sha256 `d69a6604a978c231…`

~~~~text
39: PHASE HCP_A3 % 2 1 0.5 !
40: CONST HCP_A3 : GA TI% : VA : !
~~~~

Example references (4 of 4; assessments first): 

- [doi:10.1016/j.calphad.2013.02.003](https://doi.org/10.1016/j.calphad.2013.02.003) Y. Liu, J.C. Tedenac, X.P. Su, C. Colinet, J.H. Wang, An updated thermodynamic modeling of the Ga–Ti system, Calphad 41, 140-149 (2013).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/S0925-8388(03)00131-2](https://doi.org/10.1016/S0925-8388%2803%2900131-2) J.-B. Li, J.-C. Tedenac, M.-C. Record, J. Alloys Compd., 358, 133-41(2003).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/bf00638248](https://doi.org/10.1007/bf00638248) Kurt Anderko, Ulrich Zwicker, Beitrag zur Konstitution des Systems Titan-Gallium, Naturwissenschaften 44, 510-510 (1957).  
_cited as the source of values for this phase_
- [doi:10.1016/s0925-8388(00)01416-x](https://doi.org/10.1016/s0925-8388%2800%2901416-x) N.V. Antonova, L.A. Tretyachenko, Phase diagram of the Ti–Ga system, Journal of Alloys and Compounds 317-318, 398-405 (2001).  
_cited as the source of values for this phase_

## LIQUID (Ga–Ti)

- Id: `phase:ga-ti:liquid`; status `assigned`
- Structure: liquid; type `st:liquid`; liquid; confidence high
- Stability: stable in 2 of 2 calculated diagram(s): 302.91–2500 K, x(Ti) 0–1
- Literature: 76 values (76 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-ti:liquid)

Names (5): _corpus: _corpus:phase:ga-ti:liquid  
_paper: _paper:10.1016/j.calphad.2013.02.003:L, paper:10.1016/s0925-8388(03)00131-2:L  
_tdb: _tdb:GaTi-03Li-LB.tdb:LIQUID, tdb:GaTi-13Liu.tdb:LIQUID  


### TDB models of LIQUID (2): PHASE and CONSTITUENT statements as written

[GaTi-03Li-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-03Li-LB.tdb): LIQUID, type code %, sha256 `6a0eb378d2ba649f…`

~~~~text
30: PHASE LIQUID:L % 1 1 !
31: CONST LIQUID:L : GA TI : !
~~~~

[GaTi-13Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/GaTi-13Liu.tdb): LIQUID, type code %, sha256 `d69a6604a978c231…`

~~~~text
24: PHASE LIQUID:L % 1 1 !
25: CONST LIQUID:L : GA TI : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1016/S0925-8388(03)00131-2](https://doi.org/10.1016/S0925-8388%2803%2900131-2) J.-B. Li, J.-C. Tedenac, M.-C. Record, J. Alloys Compd., 358, 133-41(2003).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2013.02.003](https://doi.org/10.1016/j.calphad.2013.02.003) Y. Liu, J.C. Tedenac, X.P. Su, C. Colinet, J.H. Wang, An updated thermodynamic modeling of the Ga–Ti system, Calphad 41, 140-149 (2013).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/s0925-8388(00)01416-x](https://doi.org/10.1016/s0925-8388%2800%2901416-x) N.V. Antonova, L.A. Tretyachenko, Phase diagram of the Ti–Ga system, Journal of Alloys and Compounds 317-318, 398-405 (2001).  
_cited as the source of values for this phase_

## Please cite

- R. Arróyave, J. Saal, D. Shin, ORCHID-Registry: phase registry of binary systems (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735970
- R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23736065

Also cite B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, https://doi.org/10.1016/j.calphad.2025.102833 (CC BY 4.0), and the original assessment named in each file; A. Jain et al., The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002, https://doi.org/10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501, https://doi.org/10.1007/s11837-013-0755-4 and S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010, https://doi.org/10.1038/npjcompumats.2015.10 (CC BY 4.0); the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work).

Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.

```bibtex
@misc{orchid_phase_registry_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Registry: phase registry of binary systems}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735970},
  url       = {https://doi.org/10.5281/zenodo.23735970},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_data_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID data: umbrella record of the ORCHID datasets}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23736065},
  url       = {https://doi.org/10.5281/zenodo.23736065},
  note      = {Version 1, machine-extracted}
}
```

---

Derived data CC BY 4.0 ([licence](https://creativecommons.org/licenses/by/4.0/)): cite the ORCHID phase registry and the sources named on the page (TDB assessments, Hallstedt 2025, Materials Project, OQMD). TDB statements are quoted as written; parameter expressions are not reproduced. Field reference: [SCHEMA.md](https://data.orchid-project.org/phases/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt).
