Ga–Pt system

45 accepted literature values from 2 paper(s) (experimental 18, model 20, DFT 7); 2 calculated phase diagram(s).

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (13) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	18
model	20
DFT	7

Accepted values by property group
Property group	Values
invariant reaction	25
phase transition	4
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
GaPt-06Li.tdb	M. Li, C. Li, F. Wang, W. Zhang, Intermetallics, 14, 826-31(2006). doi:10.1016/j.intermet.2005.12.002	`bb7e55a289ba2227f5f06d024cbe4737707b73899fa4f37b102a40beda7ec6e0`	viewer · TDB · JSON
GaPt-09Wan.tdb	J.S. Wang, S. Jin, W.J. Zhu, H.Q. Dong, X.M. Tao, H.S. Liu, Z.P. Jin, Calphad, 33, 561-69(2009). doi:10.1016/j.calphad.2009.05.002	`4b15a52b448c0356c528d63faa760b136150d37af72f2228ecb01c2434bf2d00`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
GaPt-06Li.tdb	1632.11	GAPT3_L12 (x(Pt) 0.7695) + LIQUID (x(Pt) 0.78719) + FCC_A1 (x(Pt) 0.87889)
GaPt-06Li.tdb	1416.36	LIQUID (x(Pt) 0.64399) + GAPT2 (x(Pt) 0.66667) + GAPT3_L12 (x(Pt) 0.70314)
GaPt-06Li.tdb	1402.74	GA3PT5 (x(Pt) 0.625) + LIQUID (x(Pt) 0.63414) + GAPT2 (x(Pt) 0.66667)
GaPt-06Li.tdb	1307.35	GAPT_B20 (x(Pt) 0.5) + LIQUID (x(Pt) 0.5628) + GA3PT5 (x(Pt) 0.625)
GaPt-06Li.tdb	1209.89	LIQUID (x(Pt) 0.39733) + GA3PT2_D513 (x(Pt) 0.4) + GAPT_B20 (x(Pt) 0.5)
GaPt-06Li.tdb	1209.89	LIQUID (x(Pt) 0.39755) + GA3PT2_D513 (x(Pt) 0.4) + GAPT_B20 (x(Pt) 0.5)
GaPt-06Li.tdb	1187.01	GA2PT_C1 (x(Pt) 0.33333) + LIQUID (x(Pt) 0.35801) + GA3PT2_D513 (x(Pt) 0.4)
GaPt-06Li.tdb	1187.01	GA2PT_C1 (x(Pt) 0.33333) + LIQUID (x(Pt) 0.35805) + GA3PT2_D513 (x(Pt) 0.4)
GaPt-06Li.tdb	1187.01	GA2PT_C1 (x(Pt) 0.33333) + LIQUID (x(Pt) 0.35814) + GA3PT2_D513 (x(Pt) 0.4)
GaPt-06Li.tdb	1097.49	LIQUID (x(Pt) 0.23422) + GA7PT3_D8F (x(Pt) 0.3) + GA2PT_C1 (x(Pt) 0.33333)
GaPt-06Li.tdb	1097.49	LIQUID (x(Pt) 0.23415) + GA7PT3_D8F (x(Pt) 0.3) + GA2PT_C1 (x(Pt) 0.33333)
GaPt-06Li.tdb	564.71	LIQUID (x(Pt) 0.01812) + GA6PT (x(Pt) 0.14286) + GA7PT3_D8F (x(Pt) 0.3)
GaPt-06Li.tdb	564.71	LIQUID (x(Pt) 0.01803) + GA6PT (x(Pt) 0.14286) + GA7PT3_D8F (x(Pt) 0.3)
GaPt-06Li.tdb	564.71	LIQUID (x(Pt) 0.01802) + GA6PT (x(Pt) 0.14286) + GA7PT3_D8F (x(Pt) 0.3)
GaPt-06Li.tdb	437.93	GA7PT3_D8F (x(Pt) 0.3) + GA2PT_C1 (x(Pt) 0.33333) + GA3PT2_D513 (x(Pt) 0.4)
GaPt-06Li.tdb	302.91	ORTHORHOMBIC_A11 (x(Pt) 0) + LIQUID (x(Pt) 0) + GA6PT (x(Pt) 0.14286)
GaPt-09Wan.tdb	1626.13	GAPT3_L12 (x(Pt) 0.76113) + LIQUID (x(Pt) 0.7929) + FCC_A1 (x(Pt) 0.87794)
GaPt-09Wan.tdb	1411.98	LIQUID (x(Pt) 0.631) + GAPT2 (x(Pt) 0.66667) + GAPT3_L12 (x(Pt) 0.70153)
GaPt-09Wan.tdb	1404.54	GA3PT5 (x(Pt) 0.625) + LIQUID (x(Pt) 0.62636) + GAPT2 (x(Pt) 0.66667)
GaPt-09Wan.tdb	1404.54	GA3PT5 (x(Pt) 0.625) + LIQUID (x(Pt) 0.62636) + GAPT2 (x(Pt) 0.66667)
GaPt-09Wan.tdb	1303.07	GAPT_B20 (x(Pt) 0.5) + LIQUID (x(Pt) 0.55689) + GA3PT5 (x(Pt) 0.625)
GaPt-09Wan.tdb	1213.22	GA3PT2_D513 (x(Pt) 0.4) + LIQUID (x(Pt) 0.41051) + GAPT_B20 (x(Pt) 0.5)
GaPt-09Wan.tdb	1213.22	GA3PT2_D513 (x(Pt) 0.4) + LIQUID (x(Pt) 0.41062) + GAPT_B20 (x(Pt) 0.5)
GaPt-09Wan.tdb	1187.6	GA2PT_C1 (x(Pt) 0.33333) + LIQUID (x(Pt) 0.3592) + GA3PT2_D513 (x(Pt) 0.4)
GaPt-09Wan.tdb	1187.59	GA2PT_C1 (x(Pt) 0.33333) + LIQUID (x(Pt) 0.359) + GA3PT2_D513 (x(Pt) 0.4)
GaPt-09Wan.tdb	1093.57	LIQUID (x(Pt) 0.24322) + GA7PT3_D8F (x(Pt) 0.3) + GA2PT_C1 (x(Pt) 0.33333)
GaPt-09Wan.tdb	1093.57	LIQUID (x(Pt) 0.24311) + GA7PT3_D8F (x(Pt) 0.3) + GA2PT_C1 (x(Pt) 0.33333)
GaPt-09Wan.tdb	562.24	LIQUID (x(Pt) 0.01347) + GA6PT (x(Pt) 0.14286) + GA7PT3_D8F (x(Pt) 0.3)
GaPt-09Wan.tdb	562.24	LIQUID (x(Pt) 0.01339) + GA6PT (x(Pt) 0.14286) + GA7PT3_D8F (x(Pt) 0.3)
GaPt-09Wan.tdb	562.24	LIQUID (x(Pt) 0.01337) + GA6PT (x(Pt) 0.14286) + GA7PT3_D8F (x(Pt) 0.3)
GaPt-09Wan.tdb	437.47	GA7PT3_D8F (x(Pt) 0.3) + GA2PT_C1 (x(Pt) 0.33333) + GA3PT2_D513 (x(Pt) 0.4)
GaPt-09Wan.tdb	302.91	ORTHORHOMBIC_A11 (x(Pt) 0) + LIQUID (x(Pt) 0) + GA6PT (x(Pt) 0.14286)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull GaPt-06Li

Invariant reactions (literature)

Invariant reactions reported in the literature for the Ga–Pt system (25)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1634	eutectic: L -> fcc + GaPt3	GaPt3: Pt 0.75	experimental	[1] Li 2006 cites Gruex 1976	Table 1, p. 2, row 26 report
1632	eutectic: L -> fcc + GaPt3	GaPt3: Pt 0.75	model	[1] Li 2006	Table 1, p. 2, row 27 report
1422	peritectic: L + GaPt3 -> GaPt2	GaPt3: Pt 0.75; GaPt2: Pt 0.666667	experimental	[1] Li 2006 cites Gruex 1976	Table 1, p. 2, row 24 report
1421	peritectic: L + GaPt3 -> GaPt2	GaPt3: Pt 0.75; GaPt2: Pt 0.666667	model	[1] Li 2006	Table 1, p. 2, row 25 report
1415	peritectic: L + GaPt2 -> Ga3Pt5	GaPt2: Pt 0.666667; Ga3Pt5: Pt 0.625	experimental	[1] Li 2006 cites Gruex 1976	Table 1, p. 2, row 21 report
1403	eutectic: L -> GaPt2 + Ga5Pt3	GaPt2: Pt 0.666667; Ga5Pt3: Pt 0.375	model	[1] Li 2006	Table 1, p. 2, row 23 report
1307	eutectic: L -> GaPt + Ga3Pt5	GaPt: Pt 0.5; Ga3Pt5: Pt 0.625	model	[1] Li 2006	Table 1, p. 2, row 20 report
1290	eutectic: L -> GaPt + Ga3Pt5	GaPt: Pt 0.5; Ga3Pt5: Pt 0.625	experimental	[1] Li 2006 cites Gruex 1976	Table 1, p. 2, row 19 report
1210	peritectic: L + GaPt -> Ga3Pt2	GaPt: Pt 0.5; Ga3Pt2: Pt 0.4	experimental	[1] Li 2006 cites Gruex 1976	Table 1, p. 2, row 16 report
1210	peritectic: L + GaPt -> Ga3Pt2	GaPt: Pt 0.5; Ga3Pt2: Pt 0.4	model	[1] Li 2006	Table 1, p. 2, row 18 report
1195	peritectic: L + Ga3Pt2 -> Ga2Pt	Ga3Pt2: Pt 0.4; Ga2Pt: Pt 0.333333	experimental	[1] Li 2006 cites Gruex 1976	Table 1, p. 2, row 12 report
1188	eutectic: L -> Ga3Pt2 + Ga2Pt	Ga3Pt2: Pt 0.4; Ga2Pt: Pt 0.333333	model	[1] Li 2006	Table 1, p. 2, row 15 report
1153	peritectic: L + GaPt -> Ga3Pt2	GaPt: Pt 0.5; Ga3Pt2: Pt 0.4	experimental	[1] Li 2006 cites Jain 1968	Table 1, p. 2, row 17 report
1095	peritectic: L + Ga2Pt -> Ga7Pt3	Ga2Pt: Pt 0.333333; Ga7Pt3: Pt 0.3	experimental	[1] Li 2006 cites Gruex 1976	Table 1, p. 2, row 6 report
1095	peritectic: L + Ga2Pt -> Ga7Pt3	Ga2Pt: Pt 0.333333; Ga7Pt3: Pt 0.3	model	[1] Li 2006	Table 1, p. 2, row 8 report
1043	peritectic: L + Ga3Pt2 -> Ga2Pt	Ga3Pt2: Pt 0.4; Ga2Pt: Pt 0.333333	experimental	[1] Li 2006 cites Jain 1968	Table 1, p. 2, row 13 report
863	peritectic: L + Ga2Pt -> Ga7Pt3	Ga2Pt: Pt 0.333333; Ga7Pt3: Pt 0.3	experimental	[1] Li 2006 cites Jain 1968	Table 1, p. 2, row 7 report
563	peritectic: L + Ga7Pt3 -> Ga6Pt	Ga7Pt3: Pt 0.3; Ga6Pt: Pt 0.142857	experimental	[1] Li 2006 cites Jain 1968	Table 1, p. 2, row 4 report
563	peritectic: L + Ga7Pt3 -> Ga6Pt	Ga7Pt3: Pt 0.3; Ga6Pt: Pt 0.142857	model	[1] Li 2006	Table 1, p. 2, row 5 report
563	peritectic: L + Ga7Pt3 -> Ga6Pt	Ga7Pt3: Pt 0.3; Ga6Pt: Pt 0.142857	experimental	[1] Li 2006 cites Gruex 1976	Table 1, p. 2, row 3 report
427	other: Ga2Pt -> Ga7Pt3 + Ga3Pt2	Ga2Pt: Pt 0.333333; Ga7Pt3: Pt 0.3; Ga3Pt2: Pt 0.4	model	[1] Li 2006	Table 1, p. 2, row 11 report
426	other: Ga2Pt -> Ga7Pt3 + Ga3Pt2	Ga2Pt: Pt 0.333333; Ga7Pt3: Pt 0.3; Ga3Pt2: Pt 0.4	experimental	[1] Li 2006 cites Gruex 1976	Table 1, p. 2, row 9 report
423	other: Ga2Pt -> Ga7Pt3 + Ga3Pt2	Ga2Pt: Pt 0.333333; Ga7Pt3: Pt 0.3; Ga3Pt2: Pt 0.4	experimental	[1] Li 2006 cites Jain 1968	Table 1, p. 2, row 10 report
303	eutectic: L -> Ga + Ga6Pt	Ga: Pt 0; Ga6Pt: Pt 0.142857	model	[1] Li 2006	Table 1, p. 2, row 2 report
301	eutectic: L -> Ga + Ga6Pt	Ga: Pt 0; Ga6Pt: Pt 0.142857	experimental	[1] Li 2006 cites Gruex 1976	Table 1, p. 2, row 1 report

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–Pt system (16)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location
Ga2Pt	Ga2Pt	-60.45 kJ/mol-atom	298.15	model	-56.063 (mp-aaaabgrv)	-56.439 (oqmd-17288)	[2] Wang 2009	Table 1, p. 3, row 22 report
Ga2Pt		-59.79 kJ/mol-atom	0	DFT			[2] Wang 2009	Table 1, p. 3, row 21 report
Ga3Pt2	Ga3Pt2	-65.09 kJ/mol-atom	298.15	model	-57.587 (mp-aaaabfrc)	-57.975 (oqmd-17289)	[2] Wang 2009	Table 1, p. 3, row 24 report
Ga3Pt2		-60.91 kJ/mol-atom	0	DFT			[2] Wang 2009	Table 1, p. 3, row 23 report
Ga3Pt5	Ga3Pt5	-61.68 kJ/mol-atom	298.15	model	-53.529 (mp-aaaabtjj)	-53.883 (oqmd-17290)	[2] Wang 2009	Table 1, p. 3, row 29 report
Ga3Pt5		-56.16 kJ/mol-atom	0	DFT			[2] Wang 2009	Table 1, p. 3, row 28 report
Ga7Pt3	Ga7Pt3	-59.23 kJ/mol-atom	298.15	model	-51.918 (mp-aaacpqea)	-51.998 (oqmd-22205)	[2] Wang 2009	Table 1, p. 3, row 20 report
Ga7Pt3		-54.57 kJ/mol-atom	0	DFT			[2] Wang 2009	Table 1, p. 3, row 19 report
GaPt	GaPt	-68.12 kJ/mol-atom	298.15	model	-60.784 (mp-aaacgjch)	-63.427 (oqmd-1374058)	[2] Wang 2009	Table 1, p. 3, row 27 report
GaPt		-64.27 kJ/mol-atom	0	DFT			[2] Wang 2009	Table 1, p. 3, row 26 report
GaPt	GaPt	-59.6 kJ/mol-atom	298.15	experimental	-60.784 (mp-aaacgjch)	-63.427 (oqmd-1374058)	[2] Wang 2009 cites Meschel 2000 doi	Table 1, p. 3, row 25 report
GaPt2	GaPt2	-58.1 kJ/mol-atom	298.15	model	-51.431 (mp-aaaaadhn)	-52.458 (oqmd-17285)	[2] Wang 2009	Table 1, p. 3, row 31 report
GaPt2		-54.07 kJ/mol-atom	0	DFT			[2] Wang 2009	Table 1, p. 3, row 30 report
GaPt3	GaPt3	-46.9 kJ/mol-atom	298.15	model	-42.855 (mp-aaabxcbt)	-43.749 (oqmd-17287)	[2] Wang 2009	Table 1, p. 3, row 34 report
GaPt3		-45.64 kJ/mol-atom	0	DFT			[2] Wang 2009	Table 1, p. 3, row 33 report
GaPt3	GaPt3	-43.5 kJ/mol-atom	298.15	experimental	-42.855 (mp-aaabxcbt)	-43.749 (oqmd-17287)	[2] Wang 2009 cites Meschel 2000 doi	Table 1, p. 3, row 32 report

Other properties

Phase transition (4)

Phase transition, Ga–Pt system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	1195 K	1195	congruent melting: L -> Ga2Pt L: Pt 0.333333; Ga2Pt: Pt 0.333333	model	[1] Li 2006	Table 1, p. 2, row 14 report
Phase transition	1405 K	1405	congruent melting: L -> Ga3Pt5 L: Pt 0.625; Ga3Pt5: Pt 0.625	model	[1] Li 2006	Table 1, p. 2, row 22 report
Phase transition	1647 K	1647	congruent melting: L -> GaPt3 L: Pt 0.75; GaPt3: Pt 0.75	experimental	[1] Li 2006 cites Gruex 1976	Table 1, p. 2, row 28 report
Phase transition	1649 K	1649	congruent melting: L -> GaPt3 L: Pt 0.75; GaPt3: Pt 0.75	model	[1] Li 2006	Table 1, p. 2, row 29 report

Sources

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

Mei Li, Changrong Li, Fuming Wang, Weijing Zhang, Thermodynamic assessment of the Ga–Pt system, Intermetallics 14, 826-831 (2006). doi:10.1016/j.intermet.2005.12.002
J.S. Wang, S. Jin, W.J. Zhu, H.Q. Dong, X.M. Tao, H.S. Liu et al., First-principles calculations assisted thermodynamic assessment of the Pt–Ga–Ge ternary system, Calphad 33, 561-569 (2009). doi:10.1016/j.calphad.2009.05.002

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}
}