# Rh–Ru system > Rh–Ru system: 10 accepted literature values (mixing / partial 10) and 1 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote. HTML: https://data.orchid-project.org/systems/RH-RU.html · Markdown: https://data.orchid-project.org/systems/RH-RU.md 10 accepted literature values from 1 paper(s) (DFT 10); 1 calculated phase diagram(s). 1 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/RH-RU.json) · [CSV](https://data.orchid-project.org/systems/RH-RU.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#RH-RU) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#RH-RU/RhRu-16Gos.json) · [phases (4)](https://data.orchid-project.org/phases/pages/RH-RU.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/RH-RU.html) · [Markdown](https://data.orchid-project.org/systems/RH-RU.md) Table: Accepted values by evidence class | Evidence class | Values | |---|---:| | DFT | 10 | Table: Accepted values by property group | Property group | Values | |---|---:| | mixing / partial | 10 | ## Calculated phase diagrams Binary phase diagrams calculated with pycalphad 0.11.2 from the SGTE binary collection (Hallstedt 2025, CC BY 4.0). Evidence class: model. Table: Assessments with a calculated phase diagram | TDB file | Assessment | SHA-256 | Links | |---|---|---|---| | RhRu-16Gos.tdb | S. Gosse, N. Dupin, C. Gueneau, J.-C. Crivello, J.-M. Joubert, J. Nucl. Mater., 474, 163-73(2016). [doi:10.1016/j.jnucmat.2016.03.025](https://doi.org/10.1016/j.jnucmat.2016.03.025) | `6d3f3a5adc97d335c9cf0deee0ddf77953e6239172178f20ab296ffce67efb6e` | [viewer](https://orchid-project.org/phase-diagrams/#RH-RU/RhRu-16Gos.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/RhRu-16Gos.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/RhRu-16Gos.json) | Table: Calculated three-phase invariants (model, mole fraction of the second component) | TDB file | T (K) | Phases at the invariant | |---|---:|---| | RhRu-16Gos.tdb | 2359.87 | LIQUID (x(Ru) 0.37848) + FCC_A1 (x(Ru) 0.40085) + HCP_A3 (x(Ru) 0.48194) | Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/RH/RH-RU.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/RH/RH-RU.json) ## Other properties ### Mixing / partial (10) Table: Mixing / partial, Rh–Ru system | Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote | |---|---:|---:|---|---|---|---|---| | Enthalpy of mixing; _printed: FCC mixing enthalpy_ | -1.2926 kJ/mol (basis unstated) | 0 | FCC; _alloy: Rh 0.25, Ru 0.75_ | DFT | [1] Gossé 2016 | Table 2, p. 4, row 12; `ORC-6M2B5PL7AS.8ea5c5` | | | Enthalpy of mixing; _printed: FCC mixing enthalpy_ | -0.9132 kJ/mol (basis unstated) | 0 | FCC; _alloy: Rh 0.94, Ru 0.06_ | DFT | [1] Gossé 2016 | Table 2, p. 4, row 15; `ORC-B63XKXWKXH.a4ec3f` | | | Enthalpy of mixing; _printed: FCC mixing enthalpy_ | 0.0707 kJ/mol (basis unstated) | 0 | FCC; _alloy: Rh 0.06, Ru 0.94_ | DFT | [1] Gossé 2016 | Table 2, p. 4, row 11; `ORC-EVKDX3KH5Y.250728` | | | Enthalpy of mixing; _printed: FCC mixing enthalpy_ | -1.3808 kJ/mol (basis unstated) | 0 | FCC; _alloy: Rh 0.75, Ru 0.25_ | DFT | [1] Gossé 2016 | Table 2, p. 4, row 14; `ORC-NXMD7NBPUQ.2e7376` | | | Enthalpy of mixing; _printed: FCC mixing enthalpy_ | -1.2842 kJ/mol (basis unstated) | 0 | FCC; _alloy: Rh 0.5, Ru 0.5_ | DFT | [1] Gossé 2016 | Table 2, p. 4, row 13; `ORC-Y6QRFWYB6L.8ccc78` | | | Enthalpy of mixing; _printed: HCP mixing enthalpy_ | -0.4479 kJ/mol (basis unstated) | 0 | HCP; _alloy: Rh 0.25, Ru 0.75_ | DFT | [1] Gossé 2016 | Table 2, p. 4, row 12; `ORC-6M2B5PL7AS.12f334` | | | Enthalpy of mixing; _printed: HCP mixing enthalpy_ | -0.3147 kJ/mol (basis unstated) | 0 | HCP; _alloy: Rh 0.94, Ru 0.06_ | DFT | [1] Gossé 2016 | Table 2, p. 4, row 15; `ORC-B63XKXWKXH.f1798e` | | | Enthalpy of mixing; _printed: HCP mixing enthalpy_ | 0.2358 kJ/mol (basis unstated) | 0 | HCP; _alloy: Rh 0.06, Ru 0.94_ | DFT | [1] Gossé 2016 | Table 2, p. 4, row 11; `ORC-EVKDX3KH5Y.024b91` | | | Enthalpy of mixing; _printed: HCP mixing enthalpy_ | -0.2123 kJ/mol (basis unstated) | 0 | HCP; _alloy: Rh 0.75, Ru 0.25_ | DFT | [1] Gossé 2016 | Table 2, p. 4, row 14; `ORC-NXMD7NBPUQ.820ebc` | | | Enthalpy of mixing; _printed: HCP mixing enthalpy_ | -0.8385 kJ/mol (basis unstated) | 0 | HCP; _alloy: Rh 0.5, Ru 0.5_ | DFT | [1] Gossé 2016 | Table 2, p. 4, row 13; `ORC-Y6QRFWYB6L.dfd496` | | ## Sources Reporting papers the values were read from (a value cited from another work names that work in its row). 1. S. Gossé, N. Dupin, C. Guéneau, J.-C. Crivello, J.-M. Joubert, Thermodynamic assessment of the Pd Rh Ru system using calphad and first-principles methods, Journal of Nuclear Materials 474, 163-173 (2016). [doi:10.1016/j.jnucmat.2016.03.025](https://doi.org/10.1016/j.jnucmat.2016.03.025) ## 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-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735859 - R. Arróyave, J. Saal, D. Shin, ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD) (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735891 - 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_phase_diagrams_2026, author = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon}, title = {{ORCHID-Diagrams: calculated binary phase diagrams}}, version = {2026.10}, publisher = {Zenodo}, year = {2026}, doi = {10.5281/zenodo.23735859}, url = {https://doi.org/10.5281/zenodo.23735859} } @misc{orchid_hulls_2026, author = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon}, title = {{ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD)}}, version = {2026.10}, publisher = {Zenodo}, year = {2026}, doi = {10.5281/zenodo.23735891}, url = {https://doi.org/10.5281/zenodo.23735891} } @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/).