Pd–Rh system

15 accepted literature values from 1 paper(s) (experimental 5, DFT 10); 3 calculated phase diagram(s). 5 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (4) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	5
DFT	10

Accepted values by property group
Property group	Values
phase transition	5
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.

Assessments with a calculated phase diagram
TDB file	Assessment	SHA-256	Links
PdRh-04Kor-LB.tdb	J. Korb, unpublished, 2004.	`236e300bbb2d33e34d83081b8217378cb3814bb32a6b7b76d36bf51fbdc1ab39`	viewer · TDB · JSON
PdRh-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	`e23fb73960334343652acc0668da329796ede66bec9b7930bdd609cd0c6a39b7`	viewer · TDB · JSON
PdRh-22Lau.tdb	C. Laurin, A. Quaini, E. Regnier, A. Laplace, T. Croze, S. Gosse, J. Chem. Thermodyn., 172, 106831(2022). doi:10.1016/j.jct.2022.106831	`fab4e8c17fea05f7d104b916275a0f6eb6137427838d5a14987e0ca0da3bcbb8`	viewer · TDB · JSON

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull PdRh-04Kor-LB · CALPHAD hull PdRh-16Gos

Other properties

Phase transition (5)

Phase transition, Pd–Rh system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	1827.8 K	1827.8	other	experimental	[1] Gossé 2016	Table 4, p. 5, row 1 report
Phase transition	1832.8 K	1832.8	other alloy: Pd 0.9646, Rh 0.0354	experimental	[1] Gossé 2016	Table 4, p. 5, row 2 report
Phase transition	1833.3 K	1833.3	other alloy: Pd 0.9456, Rh 0.0544	experimental	[1] Gossé 2016	Table 4, p. 5, row 3 report
Phase transition	1842.2 K	1842.2	other alloy: Pd 0.8961, Rh 0.1039	experimental	[1] Gossé 2016	Table 4, p. 5, row 4 report
Phase transition	1878.6 K	1878.6	other alloy: Pd 0.7583, Rh 0.2417	experimental	[1] Gossé 2016	Table 4, p. 5, row 5 report

Mixing / partial (10)

Mixing / partial, Pd–Rh system
Property	Value	Phases / composition	Class	Source	Location
Enthalpy of mixing printed: FCC mixing enthalpy	6.44 kJ/mol (basis unstated)	FCC alloy: Pd 0.5, Rh 0.5	DFT	[1] Gossé 2016	Table 2, p. 4, row 3 report
Enthalpy of mixing printed: FCC mixing enthalpy	4.7264 kJ/mol (basis unstated)	FCC alloy: Pd 0.25, Rh 0.75	DFT	[1] Gossé 2016	Table 2, p. 4, row 2 report
Enthalpy of mixing printed: FCC mixing enthalpy	1.1741 kJ/mol (basis unstated)	FCC alloy: Pd 0.94, Rh 0.06	DFT	[1] Gossé 2016	Table 2, p. 4, row 5 report
Enthalpy of mixing printed: FCC mixing enthalpy	4.955 kJ/mol (basis unstated)	FCC alloy: Pd 0.75, Rh 0.25	DFT	[1] Gossé 2016	Table 2, p. 4, row 4 report
Enthalpy of mixing printed: FCC mixing enthalpy	1.9837 kJ/mol (basis unstated)	FCC alloy: Pd 0.06, Rh 0.94	DFT	[1] Gossé 2016	Table 2, p. 4, row 1 report
Enthalpy of mixing printed: HCP mixing enthalpy	6.2174 kJ/mol (basis unstated)	HCP alloy: Pd 0.5, Rh 0.5	DFT	[1] Gossé 2016	Table 2, p. 4, row 3 report
Enthalpy of mixing printed: HCP mixing enthalpy	4.9894 kJ/mol (basis unstated)	HCP alloy: Pd 0.25, Rh 0.75	DFT	[1] Gossé 2016	Table 2, p. 4, row 2 report
Enthalpy of mixing printed: HCP mixing enthalpy	1.0935 kJ/mol (basis unstated)	HCP alloy: Pd 0.94, Rh 0.06	DFT	[1] Gossé 2016	Table 2, p. 4, row 5 report
Enthalpy of mixing printed: HCP mixing enthalpy	4.8144 kJ/mol (basis unstated)	HCP alloy: Pd 0.75, Rh 0.25	DFT	[1] Gossé 2016	Table 2, p. 4, row 4 report
Enthalpy of mixing printed: HCP mixing enthalpy	2.4254 kJ/mol (basis unstated)	HCP alloy: Pd 0.06, Rh 0.94	DFT	[1] Gossé 2016	Table 2, p. 4, row 1 report

Sources

Reporting papers the values were read from (a value cited from another work names that work in its row).

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

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). doi:10.5281/zenodo.23735569
R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). doi: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). doi: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). doi: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.

@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}
}