# Gd–Li–Mg system

> Gd–Li–Mg system: 21 accepted literature values (invariant reaction 12, phase transition 6, crystal structure 3) and 0 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/GD-LI-MG.html · Markdown: https://data.orchid-project.org/systems/GD-LI-MG.md

21 accepted literature values from 1 paper(s) (experimental 11, model 10); 0 calculated phase diagram(s). 2 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: [JSON](https://data.orchid-project.org/literature/systems/GD-LI-MG.json) · [CSV](https://data.orchid-project.org/systems/GD-LI-MG.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#GD-LI-MG) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/GD-LI-MG.html) · [Markdown](https://data.orchid-project.org/systems/GD-LI-MG.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 11 |
| model | 10 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 12 |
| phase transition | 6 |
| crystal structure | 3 |

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Gd–Li–Mg system (12)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 1101.15 | quasi-peritectic: L′ + (αGd) = (βGd) + L | L′: Gd 0.56, Mg 0.16; L: Gd 0.05, Mg 0.077; liquid: Gd 0.05, Mg 0.077 | model | [1] Kevorkov 2001 | Table 4, p. 6, row 1; `ORC-IKCDOYDHE2` |  |
| 1083.15 | other: L′ = L + GdMg | L′: Gd 0.363, Mg 0.381; L: Gd 0.061, Mg 0.233; L': Gd 0.363, Mg 0.381 | model | [1] Kevorkov 2001 | Table 4, p. 6, row 2; `ORC-I5CWLS25WQ` |  |
| 1064.15 | eutectic: L′ = L + (βGd) + GdMg |  | experimental | [1] Kevorkov 2001 | Table 4, p. 6, row 3; `ORC-IXWY45LMXG` |  |
| 1064.15 | eutectic: L′ = L + (βGd) + GdMg | L′: Gd 0.561, Mg 0.294; L: Gd 0.049, Mg 0.152; liquid: Gd 0.049, Mg 0.152 | model | [1] Kevorkov 2001 | Table 4, p. 6, row 4; `ORC-K4TYTX6BHM` |  |
| 1025.15 | other: (L′, L) + GdMg | liquid: Gd 0.127, Mg 0.48; (L′, L): Gd 0.127, Mg 0.48 | model | [1] Kevorkov 2001 | Table 4, p. 6, row 5; `ORC-ZKVBKFBXG5` |  |
| 980.15 | eutectic: (βGd) = L + (αGd) + GdMg | L: Gd 0.024, Mg 0.089; liquid: Gd 0.024, Mg 0.089 | model | [1] Kevorkov 2001 | Table 4, p. 6, row 7; `ORC-3I2TDQZOJU` |  |
| 968.15 | eutectic: (βGd) = L + (αGd) + GdMg |  | experimental | [1] Kevorkov 2001 | Table 4, p. 6, row 6; `ORC-CWUVNYTYSF` |  |
| 849.15 | quasi-peritectic: L + (Li) = GdMg3 + (Mg) | L: Gd 0.056, Mg 0.841; liquid: Gd 0.056, Mg 0.841 | model | [1] Kevorkov 2001 | Table 4, p. 6, row 8; `ORC-VWHKQJNDUB` |  |
| 847.15 | eutectic: L = GdMg5 + GdMg3 + (Mg) | L: Gd 0.073, Mg 0.893; liquid: Gd 0.073, Mg 0.893 | model | [1] Kevorkov 2001 | Table 4, p. 6, row 9; `ORC-WGIOLQYKH5` |  |
| 747.15 | quasi-peritectic: L + GdMg3 = GdMg2 + (Li) | L: Gd 0.002, Mg 0.38; liquid: Gd 0.002, Mg 0.38 | model | [1] Kevorkov 2001 | Table 4, p. 6, row 10; `ORC-PLOTJWHITM` |  |
| 654.15 | quasi-peritectic: L + GdMg2 = GdMg + (Li) | L: Gd 3.000e-4, Mg 0.267; liquid: Gd 3.000e-4, Mg 0.267 | model | [1] Kevorkov 2001 | Table 4, p. 6, row 11; `ORC-X44X7TT3UE` |  |
| 454.15 | quasi-peritectic: L + GdMg = (αGd) + (Li) | L: Gd 0.001, Mg 3.000e-5; liquid: Gd 0.001, Mg 3.000e-5 | model | [1] Kevorkov 2001 | Table 4, p. 6, row 12; `ORC-QGFUIAAVD7` |  |

## Other properties

### Phase transition (6)

Table: Phase transition, Gd–Li–Mg system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase transition | 960.15 K | 960.15 | (βGd) = L + (αGd) + GdMg; _alloy: Gd 0.41, Li 0.3, Mg 0.29_ | experimental | [1] Kevorkov 2001 | Table 3, p. 3, row 9; `ORC-4T3KOFMX7K` |  |
| Phase transition | 968.15 K | 968.15 | (βGd) = L + (αGd) + GdMg; _alloy: Gd 0.41, Li 0.3, Mg 0.29_ | experimental | [1] Kevorkov 2001 | Table 3, p. 3, row 8; `ORC-YPGQADRXZK` |  |
| Phase transition | 1064.15 K | 1064.15 | L′ = L + (βGd) + GdMg; _alloy: Gd 0.41, Li 0.3, Mg 0.29_ | experimental | [1] Kevorkov 2001 | Table 3, p. 3, row 7; `ORC-FDDHC3COX7` |  |
| Phase transition | 1065.15 K | 1065.15 | L′ = L + (βGd) + GdMg; _alloy: Gd 0.41, Li 0.3, Mg 0.29_ | experimental | [1] Kevorkov 2001 | Table 3, p. 3, row 6; `ORC-22QBLAGLZY` |  |
| Phase transition | 1119.15 K | 1119.15 | L/L + L' (small peak); _alloy: Gd 0.41, Li 0.3, Mg 0.29_ | experimental | [1] Kevorkov 2001 | Table 3, p. 3, row 2; `ORC-NMICHHLNYC` |  |
| Phase transition | 1125.15 K | 1125.15 | L/L + L' (small peak); _alloy: Gd 0.41, Li 0.3, Mg 0.29_ | experimental | [1] Kevorkov 2001 | Table 3, p. 3, row 1; `ORC-77AZGDFRX4` |  |

### Crystal structure (3)

Table: Crystal structure, Gd–Li–Mg system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Lattice a | 0.3807 not_printed ± 1.000e-4 | 298.15 | Gd (Mg0.9, Li0.1); _alloy: Li 0.05, Mg 0.45_ | experimental | [1] Kevorkov 2001 | Table 2, p. 3, row 3; `ORC-6WNGCA7CSL` |  |
| Lattice a | 0.8562 not_printed ± 5.000e-4 | 298.15 | Gd (Mg1.9, Li0.09); _alloy: Li 0.0301, Mg 0.635452_ | experimental | [1] Kevorkov 2001 | Table 2, p. 3, row 6; `ORC-YMDSU6BMSW` |  |
| Lattice a | 0.7305 not_printed ± 2.000e-4 | 298.15 | Gd (Mg2.8, Li0.2); _alloy: Li 0.05, Mg 0.7_ | experimental | [1] Kevorkov 2001 | Table 2, p. 3, row 9; `ORC-IAWL46CZFL` |  |

## Sources

Reporting papers the values were read from (a value cited from another work names that work in its row).

1. D. G. Kevorkov, J. Gröbner, R. Schmid-Fetzer, V. V. Pavlyuk, G. S. Dmytriv, O. I. Bodak, The ternary Gd-Li-Mg system: Phase diagram study and computational evaluation, JPE 22, 34-42 (2001). [doi:10.1361/105497101770339274](https://doi.org/10.1361/105497101770339274)

## Please cite

- R. Arróyave, J. Saal, D. Shin, ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735569
- 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 the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work); 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).

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_literature_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735569},
  url       = {https://doi.org/10.5281/zenodo.23735569},
  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 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/).