# Ga–Lu system

> Ga–Lu system: 0 accepted literature values (none) and 2 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/GA-LU.html · Markdown: https://data.orchid-project.org/systems/GA-LU.md

0 accepted literature values from 0 paper(s); 2 calculated phase diagram(s).

Data: [interactive phase diagram](https://orchid-project.org/phase-diagrams/#GA-LU/GaLu-22Ait-RK.json) · [phases (10)](https://data.orchid-project.org/phases/pages/GA-LU.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/GA-LU.html) · [Markdown](https://data.orchid-project.org/systems/GA-LU.md)

## Calculated phase diagrams

Binary phase diagrams calculated with pycalphad 0.11.2 from the SGTE binary collection (Hallstedt 2025, CC BY 4.0). Evidence class: model.

Table: Assessments with a calculated phase diagram

| TDB file | Assessment | SHA-256 | Links |
|---|---|---|---|
| GaLu-22Ait-RK.tdb | M. Ait Boukideur, N. Selhaoui, F.Z. Chrifti Alaoui, D.O. Poletaev, H. Bouchta, K. Achgar, A. Aharoune, Calphad, 79, 102464(2022). [doi:10.1016/j.calphad.2022.102464](https://doi.org/10.1016/j.calphad.2022.102464) | `ff5365cc1b75c918400e4c1edbf967848875efa4e7f5e0e318664b44e5f0ef05` | [viewer](https://orchid-project.org/phase-diagrams/#GA-LU/GaLu-22Ait-RK.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/GaLu-22Ait-RK.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/GaLu-22Ait-RK.json) |
| GaLu-22Ait-ass.tdb | M. Ait Boukideur, N. Selhaoui, F.Z. Chrifti Alaoui, D.O. Poletaev, H. Bouchta, K. Achgar, A. Aharoune, Calphad, 79, 102464(2022). [doi:10.1016/j.calphad.2022.102464](https://doi.org/10.1016/j.calphad.2022.102464) | `acd5a01972394d22fe1a8399f35314deaf3f214784d460e76630ed1dd5cbf297` | [viewer](https://orchid-project.org/phase-diagrams/#GA-LU/GaLu-22Ait-ass.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/GaLu-22Ait-ass.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/GaLu-22Ait-ass.json) |

Table: Calculated three-phase invariants (model, mole fraction of the second component)

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| GaLu-22Ait-RK.tdb | 1603.6 | GALU_B33 (x(Lu) 0.5) + LIQUID (x(Lu) 0.52827) + GA3LU5 (x(Lu) 0.57971) |
| GaLu-22Ait-RK.tdb | 1603.6 | GALU_B33 (x(Lu) 0.5) + LIQUID (x(Lu) 0.52815) + GA3LU5 (x(Lu) 0.57965) |
| GaLu-22Ait-RK.tdb | 1493.01 | GA5LU3 (x(Lu) 0.375) + LIQUID (x(Lu) 0.42713) + GALU_B33 (x(Lu) 0.5) |
| GaLu-22Ait-RK.tdb | 1493.01 | GA5LU3 (x(Lu) 0.375) + LIQUID (x(Lu) 0.42724) + GALU_B33 (x(Lu) 0.5) |
| GaLu-22Ait-RK.tdb | 1442.62 | LIQUID (x(Lu) 0.30217) + GA2LU (x(Lu) 0.33333) + GA5LU3 (x(Lu) 0.375) |
| GaLu-22Ait-RK.tdb | 1442.62 | LIQUID (x(Lu) 0.30241) + GA2LU (x(Lu) 0.33333) + GA5LU3 (x(Lu) 0.375) |
| GaLu-22Ait-RK.tdb | 1430.9 | GA3LU5 (x(Lu) 0.62496) + LIQUID (x(Lu) 0.77213) + HCP_A3 (x(Lu) 1) |
| GaLu-22Ait-RK.tdb | 1430.9 | GA3LU5 (x(Lu) 0.62496) + LIQUID (x(Lu) 0.77213) + HCP_A3 (x(Lu) 1) |
| GaLu-22Ait-RK.tdb | 1204.29 | LIQUID (x(Lu) 0.20712) + GA3LU_L12 (x(Lu) 0.25) + GA2LU (x(Lu) 0.33333) |
| GaLu-22Ait-RK.tdb | 1204.29 | LIQUID (x(Lu) 0.20706) + GA3LU_L12 (x(Lu) 0.25) + GA2LU (x(Lu) 0.33333) |
| GaLu-22Ait-RK.tdb | 1204.29 | LIQUID (x(Lu) 0.2072) + GA3LU_L12 (x(Lu) 0.25) + GA2LU (x(Lu) 0.33333) |
| GaLu-22Ait-RK.tdb | 302.78 | ORTHORHOMBIC_A11 (x(Lu) 0) + LIQUID (x(Lu) 9.500e-4) + GA3LU_L12 (x(Lu) 0.25) |
| GaLu-22Ait-RK.tdb | 302.78 | ORTHORHOMBIC_A11 (x(Lu) 0) + LIQUID (x(Lu) 9.500e-4) + GA3LU_L12 (x(Lu) 0.25) |
| GaLu-22Ait-ass.tdb | 1599.8 | GALU_B33 (x(Lu) 0.5) + LIQUID (x(Lu) 0.53226) + GA3LU5 (x(Lu) 0.59282) |
| GaLu-22Ait-ass.tdb | 1489.46 | GA5LU3 (x(Lu) 0.375) + LIQUID (x(Lu) 0.43235) + GALU_B33 (x(Lu) 0.5) |
| GaLu-22Ait-ass.tdb | 1440.85 | LIQUID (x(Lu) 0.29243) + GA2LU (x(Lu) 0.33333) + GA5LU3 (x(Lu) 0.375) |
| GaLu-22Ait-ass.tdb | 1431.01 | GA3LU5 (x(Lu) 0.62427) + LIQUID (x(Lu) 0.7955) + HCP_A3 (x(Lu) 0.99999) |
| GaLu-22Ait-ass.tdb | 1203.81 | LIQUID (x(Lu) 0.19748) + GA3LU_L12 (x(Lu) 0.25) + GA2LU (x(Lu) 0.33333) |
| GaLu-22Ait-ass.tdb | 302.77 | ORTHORHOMBIC_A11 (x(Lu) 0) + LIQUID (x(Lu) 0.00101) + GA3LU_L12 (x(Lu) 0.25) |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/GA/GA-LU.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/GA/GA-LU.json) · [CALPHAD hull GaLu-22Ait-ass](https://data.orchid-project.org/hulls/calphad-sgte/GA/GA-LU--GaLu-22Ait-ass.json)

## Please cite

- R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735859
- R. Arróyave, J. Saal, D. Shin, ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD) (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735891
- 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_diagrams_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Diagrams: calculated binary phase diagrams}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735859},
  url       = {https://doi.org/10.5281/zenodo.23735859}
}

@misc{orchid_hulls_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD)}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735891},
  url       = {https://doi.org/10.5281/zenodo.23735891}
}

@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 ORCHID ([CITATION.cff](https://data.orchid-project.org/CITATION.cff)) and the original sources. Quotes are short excerpts kept so that each value can be checked; they remain under the publishers' copyright and are not relicensed. Source papers, page images and full text are not redistributed. Field reference: [SCHEMA.md](https://data.orchid-project.org/literature/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt). Found an error? The report link of a value (Markdown: its id, ORC-..., in the Location column) opens a pre-filled GitHub issue, https://github.com/orchid-calphad/orchid-data/issues/new?template=report-value-error.yml&record_id=\<id>, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).
