# Gd–Mg–Y system > Gd–Mg–Y system: 12 accepted literature values (invariant reaction 11, phase transition 1) 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-MG-Y.html · Markdown: https://data.orchid-project.org/systems/GD-MG-Y.md 12 accepted literature values from 2 paper(s) (experimental 1, model 11); 0 calculated phase diagram(s). Data: [JSON](https://data.orchid-project.org/literature/systems/GD-MG-Y.json) · [CSV](https://data.orchid-project.org/systems/GD-MG-Y.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#GD-MG-Y) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/GD-MG-Y.html) · [Markdown](https://data.orchid-project.org/systems/GD-MG-Y.md) Table: Accepted values by evidence class | Evidence class | Values | |---|---:| | experimental | 1 | | model | 11 | Table: Accepted values by property group | Property group | Values | |---|---:| | invariant reaction | 11 | | phase transition | 1 | ## Invariant reactions (literature) Table: Invariant reactions reported in the literature for the Gd–Mg–Y system (11) | T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote | |---:|---|---|---|---|---|---| | 974 | quasi-peritectic: L + (Gd,Y)Mg = Mg2Y + GdMg2 | | model | [1] Gröbner 2010 | Table 3, p. 4, row 1; `ORC-JVBYUMLVSE` | | | 954 | quasi-peritectic: liq. + MgM -> Mg2Gd + Mg2Y | L: Gd 0.1881, Mg 0.7506, Y 0.0613; liquid: Gd 0.1881, Mg 0.7506, Y 0.0613 | model | [2] Guo 2007 | Table 4, p. 9, row 1; `ORC-YLWHEA5SHG` | | | 950 | quasi-peritectic: liq. + Mg2Gd -> Mg2Y + Mg3Gd | L: Gd 0.1852, Mg 0.7558, Y 0.059; liquid: Gd 0.1852, Mg 0.7558, Y 0.059 | model | [2] Guo 2007 | Table 4, p. 9, row 2; `ORC-3L3YRJTBOI` | | | 941.55 | quasi-peritectic: L + GdMg2 = Mg2Y + GdMg3 | | model | [1] Gröbner 2010 | Table 3, p. 4, row 2; `ORC-XKLJQX4FAH` | | | 884.84 | quasi-peritectic: L + GdMg3 = GdMg5 + Mg2Y | | model | [1] Gröbner 2010 | Table 3, p. 4, row 3; `ORC-XDA2RYETM2` | | | 877.23 | quasi-peritectic: L + GdMg5 = Mg24Y5 + Mg2Y | | model | [1] Gröbner 2010 | Table 3, p. 4, row 4; `ORC-X4GKADRGWU` | | | 869 | quasi-peritectic: liq. + Mg3Gd -> Mg2Y + Mg5Gd | L: Gd 0.1085, Mg 0.8115, Y 0.08; liquid: Gd 0.1085, Mg 0.8115, Y 0.08 | model | [2] Guo 2007 | Table 4, p. 9, row 3; `ORC-BM7DMMDD37` | | | 852 | quasi-peritectic: liq. + Mg2Y -> Mg5Gd + Mg24Y5 | L: Gd 0.085, Mg 0.8268, Y 0.0882; liquid: Gd 0.085, Mg 0.8268, Y 0.0882 | model | [2] Guo 2007 | Table 4, p. 9, row 4; `ORC-CMHNY7UAYD` | | | 833.15 | eutectic: L = (Mg) + Mg24Y5 + GdMg5 | | experimental | [1] Gröbner 2010; _cites Drits 1983_ | Table 3, p. 4, row 6; `ORC-GBLZY2CHRK` | | | 823.94 | eutectic: L = (Mg) + Mg24Y5 + GdMg5 | | model | [1] Gröbner 2010 | Table 3, p. 4, row 5; `ORC-3JFIKESZMF` | | | 810 | eutectic: liq. -> hcp(Mg) + Mg24Y5 + Mg5Gd | L: Gd 0.0583, Mg 0.9038, Y 0.0379; liquid: Gd 0.0583, Mg 0.9038, Y 0.0379 | model | [2] Guo 2007 | Table 4, p. 9, row 5; `ORC-I4FGCSWVBJ` | | ## Other properties ### Phase transition (1) Table: Phase transition, Gd–Mg–Y system | Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote | |---|---:|---:|---|---|---|---|---| | Phase transition | 878.21 K | 878.21 | other | model | [1] Gröbner 2010 | p. 4; `ORC-PT2UNY73UG` | “Invariant three-phase reactions close to U4, such as the minimum in L + Mg24Y5 + Mg2Y at 602.66 °C and the maximum in L + Mg24Y5 + GdMg5 at 605.06 °C are not included in Table 3.” | ## Sources Reporting papers the values were read from (a value cited from another work names that work in its row). 1. Joachim Gröbner, Rainer Schmid-Fetzer, Thermodynamic modeling of the Mg–Ce–Gd–Y system, Scripta Materialia 63, 674-679 (2010). [doi:10.1016/j.scriptamat.2010.01.035](https://doi.org/10.1016/j.scriptamat.2010.01.035) 2. Cuiping Guo, Zhenmin Du, Changrong Li, A thermodynamic description of the Gd–Mg–Y system, Calphad 31, 75-88 (2007). [doi:10.1016/j.calphad.2006.10.004](https://doi.org/10.1016/j.calphad.2006.10.004) ## 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=\, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).