Ga–Pd system

16 accepted literature values from 1 paper(s) (experimental 4, model 12); 1 calculated phase diagram(s).

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (10) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	4
model	12

Accepted values by property group
Property group	Values
formation	16

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
GaPd-99Gro.tdb	J. Groebner, R. Wenzel, G.G. Fischer, R. Schmid-Fetzer, J. Phase Equilib., 20, 615-25(1999). doi:10.1361/105497199770340608	`1d2b39ec052d1b19f8e190954650bb493736e1c737c9f3906fbad3f19ced0691`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
GaPd-99Gro.tdb	1373	GAPD2_C37 (x(Pd) 0.71153) + LIQUID (x(Pd) 0.81573) + FCC_A1 (x(Pd) 0.91085)
GaPd-99Gro.tdb	1324.01	LIQUID (x(Pd) 0.52276) + GA3PD5 (x(Pd) 0.625) + GAPD2_C37 (x(Pd) 0.66667)
GaPd-99Gro.tdb	1301.6	GAPD_B20 (x(Pd) 0.5) + LIQUID (x(Pd) 0.5119) + GA3PD5 (x(Pd) 0.625)
GaPd-99Gro.tdb	702.1	LIQUID (x(Pd) 0.2856) + GA7PD3 (x(Pd) 0.3) + GAPD_B20 (x(Pd) 0.5)
GaPd-99Gro.tdb	702.09	LIQUID (x(Pd) 0.28537) + GA7PD3 (x(Pd) 0.3) + GAPD_B20 (x(Pd) 0.5)
GaPd-99Gro.tdb	454.06	LIQUID (x(Pd) 0.16509) + GA5PD (x(Pd) 0.16667) + GA7PD3 (x(Pd) 0.3)
GaPd-99Gro.tdb	454.06	LIQUID (x(Pd) 0.16513) + GA5PD (x(Pd) 0.16667) + GA7PD3 (x(Pd) 0.3)
GaPd-99Gro.tdb	454.06	LIQUID (x(Pd) 0.16503) + GA5PD (x(Pd) 0.16667) + GA7PD3 (x(Pd) 0.3)

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, Ga–Pd system (16)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location
Pd2Ga	GaPd2	-77 kJ/mol-atom	1410	experimental	-62.272 (mp-aaaaactx)	-61.947 (oqmd-18584)	[1] Gröbner 1999 cites El 1992 doi	Table 1, p. 2, row 28 report
Pd2Ga	GaPd2	-67.2 kJ/mol-atom	298.15	model	-62.272 (mp-aaaaactx)	-61.947 (oqmd-18584)	[1] Gröbner 1999	Table 1, p. 2, row 29 report
Pd2Ga	GaPd2	-66 kJ/mol-atom	298.15	model	-62.272 (mp-aaaaactx)	-61.947 (oqmd-18584)	[1] Gröbner 1999 cites F 1988	Table 1, p. 2, row 30 report
Pd3Ga(b)	GaPd3	-59 kJ/mol-atom	1000	experimental	-43.858 (mp-aaacpjxe)	-47.778 (oqmd-1338998)	[1] Gröbner 1999 cites Vogelbein 1981 doi	Table 1, p. 2, row 31 report
Pd3Ga(b)	GaPd3	-50.3 kJ/mol-atom	298.15	model	-43.858 (mp-aaacpjxe)	-47.778 (oqmd-1338998)	[1] Gröbner 1999	Table 1, p. 2, row 32 report
Pd3Ga7	Ga7Pd3	-61.4 kJ/mol-atom	298.15	model	-42.994 (mp-aaackynp)	-42.648 (oqmd-22139)	[1] Gröbner 1999	Table 1, p. 2, row 39 report
Pd3Ga7	Ga7Pd3	-60 kJ/mol-atom	298.15	model	-42.994 (mp-aaackynp)	-42.648 (oqmd-22139)	[1] Gröbner 1999 cites F 1988	Table 1, p. 2, row 38 report
Pd5Ga3	Ga3Pd5	-73.2 kJ/mol-atom	298.15	model	-61.425 (mp-aaaaadoq)	-61.425 (oqmd-30321)	[1] Gröbner 1999	Table 1, p. 2, row 34 report
Pd5Ga3	Ga3Pd5	-72 kJ/mol-atom	298.15	model	-61.425 (mp-aaaaadoq)	-61.425 (oqmd-30321)	[1] Gröbner 1999 cites F 1988	Table 1, p. 2, row 33 report
PdGa	GaPd	-79.4 kJ/mol-atom	298.15	model	-63.934 (mp-aaacjjlu)	-63.587 (oqmd-23801)	[1] Gröbner 1999	Table 1, p. 2, row 36 report
PdGa	GaPd	-79 kJ/mol-atom	298.15	model	-63.934 (mp-aaacjjlu)	-63.587 (oqmd-23801)	[1] Gröbner 1999 cites F 1988	Table 1, p. 2, row 37 report
PdGa	GaPd	-72 kJ/mol-atom	320	experimental	-63.934 (mp-aaacjjlu)	-63.587 (oqmd-23801)	[1] Gröbner 1999 cites Pratt 1971	Table 1, p. 2, row 35 report
PdGa5	Ga5Pd	-39.8 kJ/mol-atom	298.15	model	-24.79 (mp-aaaabtjg)	-24.149 (oqmd-17279)	[1] Gröbner 1999	Table 1, p. 2, row 41 report
PdGa5	Ga5Pd	-33 kJ/mol-atom	298.15	model	-24.79 (mp-aaaabtjg)	-24.149 (oqmd-17279)	[1] Gröbner 1999 cites F 1988	Table 1, p. 2, row 40 report
Pg3Ga(b)		-59 kJ/mol-atom	1000	experimental			[1] Gröbner 1999 cites Vogelbein 1981 doi	Table 1, p. 2, row 31 report
Pg3Ga(b)		-50.3 kJ/mol-atom	298.15	model			[1] Gröbner 1999	Table 1, p. 2, row 32 report

Sources

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

J. Gröbner, R. Wenzel, G. G. Fischer, R. Schmid-Fetzer, Thermodynamic calculation of the binary systems M-Ga and investigation of ternary M-Ga-N phase equilibria (M=Ni, Co, Pd, Cr), JPE 20, 615-625 (1999). doi:10.1361/105497199770340608

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}
}