# Ca–Mg–O system > Ca–Mg–O system: 10 accepted literature values (invariant reaction 10) and 0 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote. HTML: https://data.orchid-project.org/systems/CA-MG-O.html · Markdown: https://data.orchid-project.org/systems/CA-MG-O.md 10 accepted literature values from 1 paper(s) (experimental 1, model 9); 0 calculated phase diagram(s). Data: [JSON](https://data.orchid-project.org/literature/systems/CA-MG-O.json) · [CSV](https://data.orchid-project.org/systems/CA-MG-O.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#CA-MG-O) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/CA-MG-O.html) · [Markdown](https://data.orchid-project.org/systems/CA-MG-O.md) Table: Accepted values by evidence class | Evidence class | Values | |---|---:| | experimental | 1 | | model | 9 | Table: Accepted values by property group | Property group | Values | |---|---:| | invariant reaction | 10 | ## Invariant reactions (literature) Table: Invariant reactions reported in the literature for the Ca–Mg–O system (10) | T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote | |---:|---|---|---|---|---|---| | 2648 | eutectic: Liquid = (MgO) + (CaO) | | model | [1] Liang 2018; _cites Huang 1995_ [doi](https://doi.org/10.1007/bf02671244) | Table 5, p. 13, row 6; `ORC-TFNJVEB4RZ` | | | 2647 | eutectic: Liquid = (MgO) + (CaO) | | model | [1] Liang 2018; _cites Hallstedt 1993_ [doi](https://doi.org/10.1007/bf02667878) | Table 5, p. 13, row 3; `ORC-3ILOLK5QGN` | | | 2647 | eutectic: Liquid = (MgO) + (CaO) | | model | [1] Liang 2018; _cites Factsage 2017_ | Table 5, p. 13, row 4; `ORC-L74UHIA65E` | | | 2643 | eutectic: Liquid = (MgO) + (CaO) | | experimental | [1] Liang 2018; _cites Doman 1963_ | Table 5, p. 13, row 1; `ORC-ELUAFZNZPQ` | | | 2643 | eutectic: Liquid = (MgO) + (CaO) | | model | [1] Liang 2018 | Table 5, p. 13, row 10; `ORC-NEBYE3BRAK` | | | 2643 | eutectic: Liquid = (MgO) + (CaO) | | model | [1] Liang 2018; _cites Blander 1987_ [doi](https://doi.org/10.1016/0016-7037%2887%2990009-3) | Table 5, p. 13, row 2; `ORC-XB5U6WBV4S` | | | 2641 | eutectic: Liquid = (MgO) + (CaO) | | model | [1] Liang 2018; _cites Hillert 1989_ [doi](https://doi.org/10.1016/0364-5916%2889%2990006-0) | Table 5, p. 13, row 5; `ORC-IJGEQBDXJE` | | | 2641 | eutectic: Liquid = (MgO) + (CaO) | | model | [1] Liang 2018; _cites Jin 1992_ [doi](https://doi.org/10.1016/0364-5916%2892%2990035-v) | Table 5, p. 13, row 7; `ORC-QLHBTSEAUS` | | | 2632 | eutectic: Liquid = (MgO) + (CaO) | | model | [1] Liang 2018; _cites Yin 1993_ [doi](https://doi.org/10.1007/bf02669140) | Table 5, p. 13, row 8; `ORC-SAFSOEEYGN` | | | 2625 | eutectic: Liquid = (MgO) + (CaO) | | model | [1] Liang 2018; _cites Serena 2005_ | Table 5, p. 13, row 9; `ORC-4ABABKBGXR` | | ## Sources Reporting papers the values were read from (a value cited from another work names that work in its row). 1. Song-Mao Liang, Rainer Schmid-Fetzer, Complete thermodynamic description of the Mg-Ca-O phase diagram including the Ca-O, Mg-O and CaO-MgO subsystems, Journal of the European Ceramic Society 38, 4768-4785 (2018). [doi:10.1016/j.jeurceramsoc.2018.06.015](https://doi.org/10.1016/j.jeurceramsoc.2018.06.015) ## 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/).