# O–Pu–U system > O–Pu–U system: 37 accepted literature values (phase transition 37) and 0 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote. HTML: https://data.orchid-project.org/systems/O-PU-U.html · Markdown: https://data.orchid-project.org/systems/O-PU-U.md 37 accepted literature values from 1 paper(s) (experimental 37); 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/O-PU-U.json) · [CSV](https://data.orchid-project.org/systems/O-PU-U.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#O-PU-U) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/O-PU-U.html) · [Markdown](https://data.orchid-project.org/systems/O-PU-U.md) Table: Accepted values by evidence class | Evidence class | Values | |---|---:| | experimental | 37 | Table: Accepted values by property group | Property group | Values | |---|---:| | phase transition | 37 | ## Other properties ### Phase transition (37) Table: Phase transition, O–Pu–U system | Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote | |---|---:|---:|---|---|---|---|---| | Phase transition | 2875 K | 2875 | other: MOX46-Air | experimental | [1] Fouquet-Métivier 2023; _cites Strach 2016_ [doi](https://doi.org/10.1016/j.nimb.2016.01.032) | Table 2, p. 10, row 3; `ORC-AHAWMVMKA4` | | | Phase transition | 2900 K | 2900 | other: MOX14-Air | experimental | [1] Fouquet-Métivier 2023; _cites Strach 2016_ [doi](https://doi.org/10.1016/j.nimb.2016.01.032) | Table 2, p. 10, row 1; `ORC-CBDBZE4IVG` | | | Phase transition | 2920 K | 2920 | other: MOX62-Air | experimental | [1] Fouquet-Métivier 2023; _cites Strach 2016_ [doi](https://doi.org/10.1016/j.nimb.2016.01.032) | Table 2, p. 10, row 7; `ORC-5QHOZF2FII` | | | Phase transition | 2930 K | 2930 | other: MOX55-Air | experimental | [1] Fouquet-Métivier 2023; _cites Strach 2016_ [doi](https://doi.org/10.1016/j.nimb.2016.01.032) | Table 2, p. 10, row 5; `ORC-6SOPHQVRIJ` | | | Phase transition | 2940 K | 2940 | other: MOX62-Ar | experimental | [1] Fouquet-Métivier 2023; _cites Strach 2016_ [doi](https://doi.org/10.1016/j.nimb.2016.01.032) | Table 2, p. 10, row 8; `ORC-4B3VBHMVGY` | | | Phase transition | 2970 K | 2970 | other: MOX46-Ar | experimental | [1] Fouquet-Métivier 2023; _cites Strach 2016_ [doi](https://doi.org/10.1016/j.nimb.2016.01.032) | Table 2, p. 10, row 4; `ORC-TMQFZGISU2` | | | Phase transition | 2985 K | 2985 | other | experimental | [1] Fouquet-Métivier 2023; _cites Bohler 2014_ [doi](https://doi.org/10.1016/j.jnucmat.2014.02.029) | Table 3, p. 17, row 6; `ORC-24PQ5WTXHW` | | | Phase transition | 2993 K | 2993 | other | experimental | [1] Fouquet-Métivier 2023; _cites Bohler 2014_ [doi](https://doi.org/10.1016/j.jnucmat.2014.02.029) | Table 3, p. 17, row 5; `ORC-T5ECGRN4FQ` | | | Phase transition | 2995 K | 2995 | other: MOX55-Ar | experimental | [1] Fouquet-Métivier 2023; _cites Strach 2016_ [doi](https://doi.org/10.1016/j.nimb.2016.01.032) | Table 2, p. 10, row 6; `ORC-FT7D57DWA5` | | | Phase transition | 2997 K | 2997 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 28; `ORC-VVNK46NMU6` | | | Phase transition | 3009 K | 3009 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 29; `ORC-7FPPAYT2O7` | | | Phase transition | 3012 K | 3012 | other | experimental | [1] Fouquet-Métivier 2023; _cites Bohler 2014_ [doi](https://doi.org/10.1016/j.jnucmat.2014.02.029) | Table 3, p. 17, row 8; `ORC-43YVQLT3NK` | | | Phase transition | 3015 K | 3015 | other | experimental | [1] Fouquet-Métivier 2023; _cites Bohler 2014_ [doi](https://doi.org/10.1016/j.jnucmat.2014.02.029) | Table 3, p. 17, row 4; `ORC-G5QYX2CTLM` | | | Phase transition | 3023 K | 3023 | other | experimental | [1] Fouquet-Métivier 2023; _cites Bohler 2014_ [doi](https://doi.org/10.1016/j.jnucmat.2014.02.029) | Table 3, p. 17, row 7; `ORC-KUYXMGGCFM` | | | Phase transition | 3025 K | 3025 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 31; `ORC-RPFURUGRDR` | | | Phase transition | 3030 K | 3030 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 27; `ORC-CHNKRUVBZZ` | | | Phase transition | 3035 K | 3035 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 30; `ORC-PCE52S73UJ` | | | Phase transition | 3050 K | 3050 | other | experimental | [1] Fouquet-Métivier 2023; _cites Bohler 2014_ [doi](https://doi.org/10.1016/j.jnucmat.2014.02.029) | Table 3, p. 17, row 9; `ORC-CHVOLKC3C6` | | | Phase transition | 3052 K | 3052 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 20; `ORC-FGAOGNS4K7` | | | Phase transition | 3059 K | 3059 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 21; `ORC-CXIXTZXAIP` | | | Phase transition | 3065 K | 3065 | other: MOX14-Ar | experimental | [1] Fouquet-Métivier 2023; _cites Strach 2016_ [doi](https://doi.org/10.1016/j.nimb.2016.01.032) | Table 2, p. 10, row 2; `ORC-LXGYRMXWTE` | | | Phase transition | 3066 K | 3066 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 23; `ORC-SKRVFOHZVK` | | | Phase transition | 3073 K | 3073 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 32; `ORC-7DKHL6QWQ2` | | | Phase transition | 3074 K | 3074 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 24; `ORC-WNQFQO5D3W` | | | Phase transition | 3077 K | 3077 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 13; `ORC-57PY4XRMHY` | | | Phase transition | 3079 K | 3079 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 25; `ORC-PGGMPOAVN7` | | | Phase transition | 3084 K | 3084 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 15; `ORC-2APSPX7R3T` | | | Phase transition | 3085 K | 3085 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 18; `ORC-U47IRTOYCF` | | | Phase transition | 3092 K | 3092 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 26; `ORC-5ZLUHLSMU2` | | | Phase transition | 3093 K | 3093 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 16; `ORC-5JO3X5NBG7` | | | Phase transition | 3097 K | 3097 | other | experimental | [1] Fouquet-Métivier 2023; _cites Bohler 2014_ [doi](https://doi.org/10.1016/j.jnucmat.2014.02.029) | Table 3, p. 17, row 3; `ORC-U2RPDSPKO5` | | | Phase transition | 3100 K | 3100 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 19; `ORC-HJ5ZKAIHU3` | | | Phase transition | 3107 K | 3107 | other | experimental | [1] Fouquet-Métivier 2023; _cites Bohler 2014_ [doi](https://doi.org/10.1016/j.jnucmat.2014.02.029) | Table 3, p. 17, row 2; `ORC-TFXYB4CE45` | | | Phase transition | 3111 K | 3111 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 11; `ORC-QFMGKC6BLF` | | | Phase transition | 3126 K | 3126 | other | experimental | [1] Fouquet-Métivier 2023; _cites Bohler 2014_ [doi](https://doi.org/10.1016/j.jnucmat.2014.02.029) | Table 3, p. 17, row 1; `ORC-ZD73D67ZNI` | | | Phase transition | 3134 K | 3134 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 12; `ORC-66QDU4U5L2` | | | Phase transition | 3140 K | 3140 | other | experimental | [1] Fouquet-Métivier 2023; _cites Kato 2009_ | Table 3, p. 17, row 10; `ORC-L7ABOY2ZUF` | | ## Sources Reporting papers the values were read from (a value cited from another work names that work in its row). 1. P. Fouquet-Métivier, P.M. Martin, D. Manara, K. Dardenne, J. Rothe, P.C.M. Fossati et al., Investigation of the solid/liquid phase transitions in the U–Pu–O system, Calphad 80, 102523 (2023). [doi:10.1016/j.calphad.2022.102523](https://doi.org/10.1016/j.calphad.2022.102523) ## 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/).