# Ga–Na phases

> Ga–Na system: 7 phases (tier A 5, tier C 1, liquid 1); 5 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-NA.html · Markdown: https://data.orchid-project.org/phases/pages/GA-NA.md

7 phases (tier A 5, tier C 1, liquid 1); 5 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-NA) · [full JSON](https://data.orchid-project.org/phases/systems/GA-NA.json) · [Ga–Na system page](https://data.orchid-project.org/systems/GA-NA.html) · [Markdown](https://data.orchid-project.org/phases/pages/GA-NA.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md)

Table: Phases of the Ga–Na system (7)

| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---:|---:|
| [ORTHORHOMBIC_A11](#phase-ga-na-a11-orthorhombic); _phase:ga-na:a11-orthorhombic_ | alpha-Ga · A11 · oC8 · Cmce (64) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–302.91 K, x(Na) 0–0 | 2 | 1 |
| [BCC_A2](#phase-ga-na-bcc-a2); _phase:ga-na:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–370.89 K, x(Na) 0.99995–1 | 0 | 1 |
| [FCC_A1](#phase-ga-na-fcc-a1); _phase:ga-na:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | not stable in 1 calculated diagram(s) | 0 | 1 |
| [GA39NA22](#phase-ga-na-ga39na22); _phase:ga-na:ga39na22_ | Ga39Na22 · oP244 · Pnma (62) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–820.2 K, x(Na) 0.36066–0.36066 | 9 | 1 |
| [GA4NA_D13](#phase-ga-na-ga4na-d13); _phase:ga-na:ga4na-d13_ | Al4Ba · D1_3 · tI10 · I4/mmm (139) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–776.41 K, x(Na) 0.2–0.2 | 7 | 1 |
| [HCP_A3](#phase-ga-na-hcp-a3); _phase:ga-na:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | not stable in 1 calculated diagram(s) | 0 | 1 |
| [LIQUID](#phase-ga-na-liquid); _phase:ga-na:liquid_ | liquid | liquid | stable in 1 of 1 calculated diagram(s): 302.91–2500 K, x(Na) 0–1 | 8 | 1 |

## ORTHORHOMBIC_A11 (Ga–Na)

- Id: `phase:ga-na: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 1 of 1 calculated diagram(s): 300–302.91 K, x(Na) 0–0
- Literature: 2 values (2 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-na:a11-orthorhombic)

Names (4): _corpus: _corpus:phase:ga-na:a11-orthorhombic, corpus:phase:ga-na:orthorhombic-a11  
_paper: _paper:10.1016/j.jcrysgro.2007.05.044:Ga  
_tdb: _tdb:GaNa-07Wan.tdb:ORTHORHOMBIC_A11  


### TDB models of ORTHORHOMBIC_A11 (1): PHASE and CONSTITUENT statements as written

[GaNa-07Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNa-07Wan.tdb): ORTHORHOMBIC_A11, type code %, sha256 `be24553ddd1d9c9a…`

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

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.jcrysgro.2007.05.044](https://doi.org/10.1016/j.jcrysgro.2007.05.044) Jingfang Wang, Wenxia Yuan, Min Li, Thermodynamic modeling of the Ga–N–Na system, Journal of Crystal Growth 307, 59-65 (2007).  
_assessment that models this phase; reports values for this phase_

## BCC_A2 (Ga–Na)

- Id: `phase:ga-na: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): 300–370.89 K, x(Na) 0.99995–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-na:bcc-a2)

Names (2): _corpus: _corpus:phase:ga-na:bcc-a2  
_tdb: _tdb:GaNa-07Wan.tdb:BCC_A2  


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

[GaNa-07Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNa-07Wan.tdb): BCC_A2, type code %B, sha256 `be24553ddd1d9c9a…`

~~~~text
33: PHASE BCC_A2 %B 2 1 3 !
34: CONST BCC_A2 : GA NA% : VA : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.jcrysgro.2007.05.044](https://doi.org/10.1016/j.jcrysgro.2007.05.044) Jingfang Wang, Wenxia Yuan, Min Li, Thermodynamic modeling of the Ga–N–Na system, Journal of Crystal Growth 307, 59-65 (2007).  
_assessment that models this phase_

## FCC_A1 (Ga–Na)

- Id: `phase:ga-na: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 1 calculated diagram(s)
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-na:fcc-a1)

Names (2): _corpus: _corpus:phase:ga-na:fcc-a1  
_tdb: _tdb:GaNa-07Wan.tdb:FCC_A1  


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

[GaNa-07Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNa-07Wan.tdb): FCC_A1, type code %A, sha256 `be24553ddd1d9c9a…`

~~~~text
28: PHASE FCC_A1 %A 2 1 1 !
29: CONST FCC_A1 : GA NA : VA : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.jcrysgro.2007.05.044](https://doi.org/10.1016/j.jcrysgro.2007.05.044) Jingfang Wang, Wenxia Yuan, Min Li, Thermodynamic modeling of the Ga–N–Na system, Journal of Crystal Growth 307, 59-65 (2007).  
_assessment that models this phase_

## GA39NA22 (Ga–Na)

- Id: `phase:ga-na:ga39na22`; status `assigned`
- Structure: Ga39Na22 · oP244 · Pnma (62); type `st:ga39na22-op244`; 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 0.6393, Na 0.3607
- Stability: stable in 1 of 1 calculated diagram(s): 300–820.2 K, x(Na) 0.36066–0.36066
- Literature: 9 values (9 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-na:ga39na22)

Names (3): _corpus: _corpus:phase:ga-na:ga39na22  
_paper: _paper:10.1016/j.jcrysgro.2007.05.044:Ga39Na22  
_tdb: _tdb:GaNa-07Wan.tdb:GA39NA22  


### TDB models of GA39NA22 (1): PHASE and CONSTITUENT statements as written

[GaNa-07Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNa-07Wan.tdb): GA39NA22, type code %, sha256 `be24553ddd1d9c9a…`

~~~~text
53: PHASE GA39NA22 % 2 39 22 !
54: CONST GA39NA22 : GA : NA : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1016/j.jcrysgro.2007.05.044](https://doi.org/10.1016/j.jcrysgro.2007.05.044) Jingfang Wang, Wenxia Yuan, Min Li, Thermodynamic modeling of the Ga–N–Na system, Journal of Crystal Growth 307, 59-65 (2007).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/bf00810084](https://doi.org/10.1007/bf00810084) Leszek A. Zabdyr, Thermodynamics and phase diagram of the gallium-sodium system, Monatsh Chem 119, 31-40 (1988).  
_cited as the source of values for this phase_
- [doi:10.1016/0040-6031(73)80012-7](https://doi.org/10.1016/0040-6031%2873%2980012-7) Michẽle Gambino, Jean-Pierre Eros, Étude thermochimique des alliages de gallium et de sodium, Thermochimica Acta 6, 129-136 (1973).  
_cited as the source of values for this phase_

## GA4NA_D13 (Ga–Na)

- Id: `phase:ga-na:ga4na-d13`; status `assigned`
- Structure: Al4Ba · D1_3 · tI10 · I4/mmm (139); type `st:d1-3-al4ba-ti10`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaaaaarm and oqmd-17259, space group 139
- Stoichiometry: Ga 0.8000, Na 0.2000
- Stability: stable in 1 of 1 calculated diagram(s): 300–776.41 K, x(Na) 0.2–0.2
- Literature: 7 values (7 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-na:ga4na-d13)

Names (6): _corpus: _corpus:phase:ga-na:ga4na-d13  
_mp: _mp:mp-aaaaaarm  
_oqmd: _oqmd:oqmd-17259  
_paper: _paper:10.1016/j.jcrysgro.2007.05.044:Ga4Na, paper:10.1016/j.jcrysgro.2007.05.044:NaGa4  
_tdb: _tdb:GaNa-07Wan.tdb:GA4NA_D13  


### TDB models of GA4NA_D13 (1): PHASE and CONSTITUENT statements as written

[GaNa-07Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNa-07Wan.tdb): GA4NA_D13, type code %, sha256 `be24553ddd1d9c9a…`

~~~~text
48: PHASE GA4NA_D13 % 2 4 1 !
49: CONST GA4NA_D13 : GA : NA : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1016/j.jcrysgro.2007.05.044](https://doi.org/10.1016/j.jcrysgro.2007.05.044) Jingfang Wang, Wenxia Yuan, Min Li, Thermodynamic modeling of the Ga–N–Na system, Journal of Crystal Growth 307, 59-65 (2007).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/0040-6031(73)80012-7](https://doi.org/10.1016/0040-6031%2873%2980012-7) Michẽle Gambino, Jean-Pierre Eros, Étude thermochimique des alliages de gallium et de sodium, Thermochimica Acta 6, 129-136 (1973).  
_cited as the source of values for this phase_

## HCP_A3 (Ga–Na)

- Id: `phase:ga-na: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 1 calculated diagram(s)
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-na:hcp-a3)

Names (2): _corpus: _corpus:phase:ga-na:hcp-a3  
_tdb: _tdb:GaNa-07Wan.tdb:HCP_A3  


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

[GaNa-07Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNa-07Wan.tdb): HCP_A3, type code %A, sha256 `be24553ddd1d9c9a…`

~~~~text
38: PHASE HCP_A3 %A 2 1 0.5 !
39: CONST HCP_A3 : GA NA : VA : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.jcrysgro.2007.05.044](https://doi.org/10.1016/j.jcrysgro.2007.05.044) Jingfang Wang, Wenxia Yuan, Min Li, Thermodynamic modeling of the Ga–N–Na system, Journal of Crystal Growth 307, 59-65 (2007).  
_assessment that models this phase_

## LIQUID (Ga–Na)

- Id: `phase:ga-na:liquid`; status `assigned`
- Structure: liquid; type `st:liquid`; liquid; confidence high
- Stability: stable in 1 of 1 calculated diagram(s): 302.91–2500 K, x(Na) 0–1
- Literature: 8 values (8 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-na:liquid)

Names (4): _corpus: _corpus:phase:ga-na:liquid  
_paper: _paper:10.1016/j.jcrysgro.2007.05.044:Liquid, paper:10.1016/j.jcrysgro.2007.05.044:Liquid2  
_tdb: _tdb:GaNa-07Wan.tdb:LIQUID  


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

[GaNa-07Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/GaNa-07Wan.tdb): LIQUID, type code %, sha256 `be24553ddd1d9c9a…`

~~~~text
23: PHASE LIQUID:L % 1 1 !
24: CONST LIQUID:L : GA NA : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.jcrysgro.2007.05.044](https://doi.org/10.1016/j.jcrysgro.2007.05.044) Jingfang Wang, Wenxia Yuan, Min Li, Thermodynamic modeling of the Ga–N–Na system, Journal of Crystal Growth 307, 59-65 (2007).  
_assessment that models this phase; reports 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).