# Co–Fe–Gd system > Co–Fe–Gd system: 9 accepted literature values (invariant reaction 5, phase transition 4) and 0 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote. HTML: https://data.orchid-project.org/systems/CO-FE-GD.html · Markdown: https://data.orchid-project.org/systems/CO-FE-GD.md 9 accepted literature values from 1 paper(s) (model 5, unspecified 4); 0 calculated phase diagram(s). Data: [JSON](https://data.orchid-project.org/literature/systems/CO-FE-GD.json) · [CSV](https://data.orchid-project.org/systems/CO-FE-GD.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#CO-FE-GD) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/CO-FE-GD.html) · [Markdown](https://data.orchid-project.org/systems/CO-FE-GD.md) Table: Accepted values by evidence class | Evidence class | Values | |---|---:| | model | 5 | | unspecified | 4 | Table: Accepted values by property group | Property group | Values | |---|---:| | invariant reaction | 5 | | phase transition | 4 | ## Invariant reactions (literature) Table: Invariant reactions reported in the literature for the Co–Fe–Gd system (5) | T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote | |---:|---|---|---|---|---|---| | 1497 | Liq. + M17Gd2 + M23Gd6 -> M3Gd | L: Co 0.0816, Gd 0.279; liq: Co 0.0816, Gd 0.279 | model | [1] Liu 1995 | Table 7, p. 7, row 5; `ORC-RCR4S37I7R` | | | 1481 | Liq. + M5Gd -> M17Gd2 + M7Gd2 | L: Co 0.551, Gd 0.194; liq: Co 0.551, Gd 0.194 | model | [1] Liu 1995 | Table 7, p. 7, row 4; `ORC-3RRPW5C3LK` | | | 1465 | Liq. + M7Gd2 -> M17Gd2 + M3Gd | L: Co 0.467, Gd 0.203; liq: Co 0.467, Gd 0.203 | model | [1] Liu 1995 | Table 7, p. 7, row 3; `ORC-YBLSE34K2J` | | | 940 | Liq. -> h.c.p. + M2Gd + MGd3 | L: Co 0.197, Gd 0.695; liq: Co 0.197, Gd 0.695 | model | [1] Liu 1995 | Table 7, p. 7, row 2; `ORC-NFOWFAZK5C` | | | 915 | Liq. -> M2Gd + M3Gd4 + MGd3 | L: Co 0.331, Gd 0.635; liq: Co 0.331, Gd 0.635 | model | [1] Liu 1995 | Table 7, p. 7, row 1; `ORC-6TRCEBW5TN` | | ## Other properties ### Phase transition (4) Table: Phase transition, Co–Fe–Gd system | Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote | |---|---:|---:|---|---|---|---|---| | Phase transition | 943 K | 943 | Liq. + M2Gd + MGd3 | unspecified | [1] Liu 1995 | Table 8, p. 7, row 1; `ORC-SRYSNCL5UK` | | | Phase transition | 1325 K | 1325 | Liq. + M3Gd + M2Gd | unspecified | [1] Liu 1995 | Table 8, p. 7, row 2; `ORC-3WCEZS646S` | | | Phase transition | 1462 K | 1462 | Liq. + M17Gd2 + M3Gd | unspecified | [1] Liu 1995 | Table 8, p. 7, row 3; `ORC-QXLVC6PMUL` | | | Phase transition | 1500 K | 1500 | Liq. + f.c.c. + M17Gd2 | unspecified | [1] Liu 1995 | Table 8, p. 7, row 4; `ORC-ONPXCH25BV` | | ## Sources Reporting papers the values were read from (a value cited from another work names that work in its row). 1. Zi-Kui Liu, Weijing Zhang, Bo Sundman, Thermodynamic assessment of the CoFeGd systems, Journal of Alloys and Compounds 226, 33-45 (1995). [doi:10.1016/0925-8388(95)01578-7](https://doi.org/10.1016/0925-8388%2895%2901578-7) ## 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/).