Cu–Pt system

20 accepted literature values from 1 paper(s) (experimental 2, model 11, DFT 7); 1 calculated phase diagram(s).

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (6) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	2
model	11
DFT	7

Accepted values by property group
Property group	Values
formation	20

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
CuPt-06Abe.tdb	T. Abe, B. Sundman, H. Onodera, J. Phase Equilib. Diffus., 27, 5-13(2006). doi:10.1361/105497196X92736	`22e617239e1358783d6146eabe946f0b788a2e02e76a71999787ac5ec3c23da7`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
CuPt-06Abe.tdb	709.77	FCC_4SL (x(Pt) 0.22266) + FCC_A1 (x(Pt) 0.30089) + CUPT_L11 (x(Pt) 0.36146)
CuPt-06Abe.tdb	709.77	FCC_4SL (x(Pt) 0.22266) + FCC_A1 (x(Pt) 0.30089) + CUPT_L11 (x(Pt) 0.36146)
CuPt-06Abe.tdb	616.46	CUPT_L11 (x(Pt) 0.68399) + FCC_A1 (x(Pt) 0.75822) + FCC_4SL (x(Pt) 0.8219)

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Formation enthalpies

Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from dft_parity.json.

Enthalpies of formation, Cu–Pt system (20)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location
L10-CuPt		-13 kJ/mol-atom		DFT			[1] Abe 2006 cites Johannesson 2002 doi	Table 2, p. 7, row 1 report
L10-CuPt	CuPt	-11 kJ/mol-atom		model	-15.37 (mp-aaabkrdf)	3.241 (oqmd-339324)	[1] Abe 2006 cites Takizawa 1989 doi	Table 2, p. 7, row 3 report
L10-CuPt	CuPt	-9.6 kJ/mol-atom		model	-15.37 (mp-aaabkrdf)	3.241 (oqmd-339324)	[1] Abe 2006	Table 2, p. 7, row 7 report
L10-CuPt		-9.5 kJ/mol-atom		DFT			[1] Abe 2006 cites Lu 1991 doi	Table 2, p. 7, row 2 report
L11-CuPt	CuPt	-20 kJ/mol-atom		model	-15.37 (mp-aaabkrdf)	-16.326 (oqmd-18532)	[1] Abe 2006 cites Takizawa 1989 doi	Table 2, p. 7, row 3 report
L11-CuPt	CuPt	-18 kJ/mol-atom		model	-15.37 (mp-aaabkrdf)	-16.326 (oqmd-18532)	[1] Abe 2006 cites FR 1988	Table 2, p. 7, row 4 report
L11-CuPt	CuPt	-16 kJ/mol-atom		model	-15.37 (mp-aaabkrdf)	-16.326 (oqmd-18532)	[1] Abe 2006	Table 2, p. 7, row 7 report
L11-CuPt	CuPt	-15.6 kJ/mol-atom	298.15	experimental	-15.37 (mp-aaabkrdf)	-16.326 (oqmd-18532)	[1] Abe 2006 cites Oriani 1962 doi	Table 2, p. 7, row 6 report
L11-CuPt		-12.4 kJ/mol-atom		DFT			[1] Abe 2006 cites Lu 1991 doi	Table 2, p. 7, row 2 report
L12-Cu3Pt		-14 kJ/mol-atom		DFT			[1] Abe 2006 cites Johannesson 2002 doi	Table 2, p. 7, row 1 report
L12-Cu3Pt	Cu3Pt	-13 kJ/mol-atom		model	-13.404 (mp-aaaaarww)	-13.595 (oqmd-29766)	[1] Abe 2006 cites FR 1988	Table 2, p. 7, row 4 report
L12-Cu3Pt		-11.2 kJ/mol-atom		DFT			[1] Abe 2006 cites Lu 1991 doi	Table 2, p. 7, row 2 report
L12-Cu3Pt	Cu3Pt	-11 kJ/mol-atom		model	-13.404 (mp-aaaaarww)	-13.595 (oqmd-29766)	[1] Abe 2006 cites Takizawa 1989 doi	Table 2, p. 7, row 3 report
L12-Cu3Pt	Cu3Pt	-11 kJ/mol-atom		model	-13.404 (mp-aaaaarww)	-13.595 (oqmd-29766)	[1] Abe 2006	Table 2, p. 7, row 7 report
L12-Cu3Pt	Cu3Pt	-10.8 kJ/mol-atom	298.15	experimental	-13.404 (mp-aaaaarww)	-13.595 (oqmd-29766)	[1] Abe 2006 cites Meschel 2006	Table 2, p. 7, row 5 report
L12-CuPt3		-14 kJ/mol-atom		DFT			[1] Abe 2006 cites Johannesson 2002 doi	Table 2, p. 7, row 1 report
L12-CuPt3	CuPt3	-13 kJ/mol-atom		model	232.783 (mp-aaacrban)	-11.337 (oqmd-349751)	[1] Abe 2006 cites Takizawa 1989 doi	Table 2, p. 7, row 3 report
L12-CuPt3	CuPt3	-10 kJ/mol-atom		model	232.783 (mp-aaacrban)	-11.337 (oqmd-349751)	[1] Abe 2006 cites FR 1988	Table 2, p. 7, row 4 report
L12-CuPt3		-9.3 kJ/mol-atom		DFT			[1] Abe 2006 cites Lu 1991 doi	Table 2, p. 7, row 2 report
L12-CuPt3	CuPt3	-8 kJ/mol-atom		model	232.783 (mp-aaacrban)	-11.337 (oqmd-349751)	[1] Abe 2006	Table 2, p. 7, row 7 report

Sources

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

Taichi Abe, Bo Sundman, Hidehiro Onodera, Thermodynamic assessment of the Cu−Pt system, JPED 27, 5-13 (2006). doi:10.1361/105497196x92736

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}
}