Ag–Ga system

47 accepted literature values from 2 paper(s) (experimental 35, model 12); 2 calculated phase diagram(s). 7 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 (7) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	35
model	12

Accepted values by property group
Property group	Values
invariant reaction	44
phase transition	3

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
AgGa-06Zha.tdb	Y. Zhang, J.-B. Li, J.K. Liang, Q.L. Liu, Y.G. Xiao, Q. Zhang, G.H. Rao, C.R. Li, Calphad, 30, 316-22(2006). doi:10.1016/j.calphad.2006.02.004	`5964e1fd9ccd10cfbd83b6fdb346d25ea7ffa5fe817f572358e120a1cd57f94d`	viewer · TDB · JSON
AgGa-11Gie.tdb	W. Gierlotka, D. Jendrzejczyk-Handzlik, J. Alloys Compd., 509, 38-42(2011). doi:10.1016/j.jallcom.2010.08.136	`3ca7f3c42581b3ee18b8fb39d6f729ef55f565cfd1573fc855f46fef9111e82f`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
AgGa-06Zha.tdb	819.35	FCC_A1 (x(Ga) 0.17718) + HCP_A3 (x(Ga) 0.21812) + LIQUID (x(Ga) 0.30535)
AgGa-06Zha.tdb	721.68	HCP_A3 (x(Ga) 0.27157) + AG2GA_C22 (x(Ga) 0.27868) + LIQUID (x(Ga) 0.36508)
AgGa-06Zha.tdb	687.97	FCC_A1 (x(Ga) 0.1644) + HCP_A3 (x(Ga) 0.22146) + AG2GA_C22 (x(Ga) 0.24616)
AgGa-06Zha.tdb	551.3	AG2GA_C22 (x(Ga) 0.32736) + AG3GA2_B2 (x(Ga) 0.4) + LIQUID (x(Ga) 0.65666)
AgGa-06Zha.tdb	302.84	AG3GA2_B2 (x(Ga) 0.4) + LIQUID (x(Ga) 0.99933) + ORTHORHOMBIC_A11 (x(Ga) 1)
AgGa-11Gie.tdb	886.8	FCC_A1 (x(Ga) 0.1717) + HCP_A3 (x(Ga) 0.21702) + LIQUID (x(Ga) 0.30532)
AgGa-11Gie.tdb	695.99	AG2GA_C22 (x(Ga) 0.31676) + HCP_A3 (x(Ga) 0.36275) + LIQUID (x(Ga) 0.56)
AgGa-11Gie.tdb	666.23	FCC_A1 (x(Ga) 0.17609) + HCP_A3 (x(Ga) 0.20843) + AG2GA_C22 (x(Ga) 0.25664)
AgGa-11Gie.tdb	581.05	AG2GA_C22 (x(Ga) 0.33139) + AG3GA2_B2 (x(Ga) 0.4) + LIQUID (x(Ga) 0.86226)
AgGa-11Gie.tdb	302.84	AG3GA2_B2 (x(Ga) 0.4) + LIQUID (x(Ga) 0.99943) + ORTHORHOMBIC_A11 (x(Ga) 1)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull AgGa-06Zha

Invariant reactions (literature)

Invariant reactions reported in the literature for the Ag–Ga system (44)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
888	FCC_A1 + L = HCP_A3		experimental	[1] Gierlotka 2011 cites Muller 1959	Table 3, p. 4, row 2 report
888	FCC_A1 + L = HCP_A3		experimental	[1] Gierlotka 2011 cites Owen 1940	Table 3, p. 4, row 3 report
888	peritectic: fcc + L <-> hcp	fcc: Ga 0.178	experimental	[2] Zhang 2006 cites Owen 1940	Table 2, p. 3, row 6 report
888	peritectic: fcc + L <-> hcp	fcc: Ga 0.182	experimental	[2] Zhang 2006 cites Muller 1959	Table 2, p. 3, row 5 report
888	peritectic: fcc + L <-> hcp	fcc: Ga 0.186	experimental	[2] Zhang 2006 cites Owen 1950	Table 2, p. 3, row 7 report
886.8	FCC_A1 + L = HCP_A3	HCP_A3: Ga 0.217	model	[1] Gierlotka 2011	Table 3, p. 4, row 1 report
885	peritectic: fcc + L <-> hcp	L: Ga 0.281; hcp: Ga 0.22	experimental	[2] Zhang 2006 cites Feschotte 1991 doi	Table 2, p. 3, row 4 report
885	FCC_A1 + L = HCP_A3		experimental	[1] Gierlotka 2011 cites Feschotte 1991 doi	Table 3, p. 4, row 4 report
884	peritectic: fcc + L <-> hcp	L: Ga 0.283; hcp: Ga 0.222	experimental	[2] Zhang 2006 cites Predel 1972 doi	Table 2, p. 3, row 3 report
884	FCC_A1 + L = HCP_A3	HCP_A3: Ga 0.22	experimental	[1] Gierlotka 2011 cites Predel 1972 doi	Table 3, p. 4, row 5 report
883.8	peritectic: fcc + L <-> hcp	fcc: Ga 0.187; L: Ga 0.27; hcp: Ga 0.221	model	[2] Zhang 2006	Table 2, p. 3, row 1 report
883.5	peritectic: fcc + L <-> hcp		experimental	[2] Zhang 2006 cites Zhang	Table 2, p. 3, row 8 report
883	peritectic: fcc + L <-> hcp	fcc: Ga 0.187; L: Ga 0.283; hcp: Ga 0.22	experimental	[2] Zhang 2006 cites Hume-Rothery 1942	Table 2, p. 3, row 2 report
708	order-disorder: Ag2Ga <-> hcp	hcp: Ga 0.29; Ag2Ga/hcp: Ga 0.29	experimental	[2] Zhang 2006 cites Feschotte 1991 doi	Table 2, p. 3, row 17 report
708	order-disorder: Ag2Ga <-> hcp	hcp: Ga 0.305; Ag2Ga/hcp: Ga 0.305	model	[2] Zhang 2006	Table 2, p. 3, row 15 report
698	order-disorder: Ag2Ga <-> hcp	hcp: Ga 0.27; Ag2Ga/hcp: Ga 0.27	experimental	[2] Zhang 2006 cites Hume-Rothery 1959	Table 2, p. 3, row 18 report
698	order-disorder: Ag2Ga <-> hcp	hcp: Ga 0.277; Ag2Ga/hcp: Ga 0.277	experimental	[2] Zhang 2006 cites Predel 1972 doi	Table 2, p. 3, row 16 report
695	metatectic/catatectic: hcp <-> Ag2Ga + L	Ag2Ga: Ag 0.666667, Ga 0.333333	experimental	[2] Zhang 2006 cites Zhang	Table 2, p. 3, row 21 report
693.6	HCP_A3 = ζ′ + L	HCP_A3: Ga 0.364; ζ′: Ga 0.333333	model	[1] Gierlotka 2011	Table 3, p. 4, row 8 report
693	metatectic/catatectic: hcp <-> Ag2Ga + L	Ag2Ga: Ag 0.666667, Ga 0.333333; L: Ga 0.587	experimental	[2] Zhang 2006 cites Feschotte 1991 doi	Table 2, p. 3, row 20 report
693	HCP_A3 = ζ′ + L	ζ′: Ga 0.333333	experimental	[1] Gierlotka 2011 cites Feschotte 1991 doi	Table 3, p. 4, row 9 report
692.3	metatectic/catatectic: hcp <-> Ag2Ga + L	hcp: Ga 0.361; Ag2Ga: Ga 0.322; L: Ga 0.584	model	[2] Zhang 2006	Table 2, p. 3, row 19 report
675	eutectoid: hcp <-> fcc + Ag2Ga	hcp: Ga 0.227; fcc: Ga 0.192; Ag2Ga: Ga 0.254	experimental	[2] Zhang 2006 cites Feschotte 1991 doi	Table 2, p. 3, row 12 report
670	HCP_A3 = FCC_A1 + HCP_ORD	HCP_A3: Ga 0.208	model	[1] Gierlotka 2011	Table 3, p. 4, row 6 report
668	eutectoid: hcp <-> fcc + Ag2Ga	hcp: Ga 0.205; fcc: Ga 0.176; Ag2Ga: Ga 0.256	experimental	[2] Zhang 2006 cites Predel 1972 doi	Table 2, p. 3, row 11 report
668	eutectoid: hcp <-> fcc + Ag2Ga	Ag2Ga: Ag 0.666667, Ga 0.333333	experimental	[2] Zhang 2006 cites Gunns 2000 doi	Table 2, p. 3, row 13 report
668	HCP_A3 = FCC_A1 + HCP_ORD	HCP_A3: Ga 0.205	experimental	[1] Gierlotka 2011 cites Predel 1972 doi	Table 3, p. 4, row 7 report
668	eutectoid: hcp <-> fcc + Ag2Ga	Ag2Ga: Ag 0.666667, Ga 0.333333	experimental	[2] Zhang 2006 cites Zhang	Table 2, p. 3, row 14 report
666.4	eutectoid: hcp <-> fcc + Ag2Ga	hcp: Ga 0.2238; fcc: Ga 0.164; Ag2Ga: Ga 0.258	model	[2] Zhang 2006	Table 2, p. 3, row 9 report
651	eutectoid: hcp <-> fcc + Ag2Ga	hcp: Ga 0.205; fcc: Ga 0.176; Ag2Ga: Ga 0.256	experimental	[2] Zhang 2006 cites Hume-Rothery 1942	Table 2, p. 3, row 10 report
578	peritectic: Ag2Ga <-> L + AgmGan	Ag2Ga: Ga 0.324; L: Ga 0.86; AgmGan: Ga 0.5	experimental	[2] Zhang 2006 cites Feschotte 1991 doi	Table 2, p. 3, row 24 report
578	ζ′ + L = Ag3Ga2	ζ′: Ga 0.5; Ag3Ga2: Ga 0.4	experimental	[1] Gierlotka 2011 cites Feschotte 1991 doi	Table 3, p. 4, row 12 report
575	ζ′ + L = Ag3Ga2	ζ′: Ga 0.333333; Ag3Ga2: Ga 0.4	model	[1] Gierlotka 2011	Table 3, p. 4, row 10 report
575	peritectic: Ag2Ga <-> L + AgmGan	Ag2Ga: Ag 0.666667, Ga 0.333333; AgmGan: Ga 0.4	experimental	[2] Zhang 2006 cites Zhang	Table 2, p. 3, row 25 report
575	metatectic/catatectic: hcp <-> Ag2Ga + L	Ag2Ga: Ag 0.666667, Ga 0.333333	experimental	[2] Zhang 2006 cites Gunns 2000 doi	Table 2, p. 3, row 22 report
575	ζ′ + L = Ag3Ga2	ζ′: Ga 0.333333; Ag3Ga2: Ga 0.4	experimental	[1] Gierlotka 2011 cites Zhang 2007 doi	Table 3, p. 4, row 11 report
574.3	peritectic: Ag2Ga <-> L + AgmGan	Ag2Ga: Ga 0.331; L: Ga 0.863; AgmGan: Ga 0.4	model	[2] Zhang 2006	Table 2, p. 3, row 23 report
302	L = ζ′ + Orthorhombic_GA	L: Ga 0.998; ζ′: Ga 0.333333; Orthorhombic_GA: Ga 1	model	[1] Gierlotka 2011	Table 3, p. 4, row 13 report
302	eutectic: L <-> AgmGan + Ga	L: Ga 0.9998; AgmGan: Ga 0.5; Ga: Ga 1	model	[2] Zhang 2006	Table 2, p. 3, row 26 report
299	eutectic: L <-> AgmGan + Ga	AgmGan: Ga 0.4; Ga: Ga 1	experimental	[2] Zhang 2006 cites Zhang	Table 2, p. 3, row 28 report
299	eutectic: L <-> AgmGan + Ga	L: Ga 0.987; Ga: Ga 1	experimental	[2] Zhang 2006 cites Predel 1972 doi	Table 2, p. 3, row 29 report
299	L = ζ′ + Orthorhombic_GA	ζ′: Ga 0.333333; Orthorhombic_GA: Ga 1	experimental	[1] Gierlotka 2011 cites Predel 1972 doi	Table 3, p. 4, row 14 report
299	eutectic: L <-> AgmGan + Ga	AgmGan: Ga 0.5; Ga: Ga 1	experimental	[2] Zhang 2006 cites Feschotte 1991 doi	Table 2, p. 3, row 27 report
298.15	eutectic: L <-> AgmGan + Ga	L: Ga 0.974; Ga: Ga 1	experimental	[2] Zhang 2006 cites Weibke 1936 doi	Table 2, p. 3, row 30 report

Other properties

Phase transition (3)

Phase transition, Ag–Ga system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	574 K	574	other: hcp ↔ Ag2 Ga + L	experimental	[2] Zhang 2006 cites Gunns 2000 doi	p. 5 report	Gunnæs et al. [13] constructed the complete single phase region of hcp and reported a metatectic reaction hcp ↔ Ag2 Ga + L at 574 K.
Phase transition	694 K	694	other: hcp → Ag2 Ga + L	model	[2] Zhang 2006	p. 5 report	It is to be noted that, as the composition of the metatectic point of the invariant equilibrium hcp → Ag2 Ga + L at ∼694 K was not determined by any experimental work, we assumed it to be about 35.5 at.% Ga from the extrapolation of the reported phase boundary of hcp/hcp + L [29].
Phase transition	694 K	694	other: hcp ↔ Ag2 Ga+ L	experimental	[2] Zhang 2006 cites Feschotte 1991 doi	p. 5 report	However, Feschotte and Bass [23] suggested the transition hcp ↔ Ag2 Ga+ L at 694 K and the transformation temperature of hcp ↔ Ag2 Ga was determined precisely in their work.

Sources

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

Wojciech Gierlotka, Dominika Jendrzejczyk-Handzlik, Thermodynamic description of the binary Ag–Ga system, Journal of Alloys and Compounds 509, 38-42 (2011). doi:10.1016/j.jallcom.2010.08.136
Y. Zhang, J.-B. Li, J.K. Liang, Q.L. Liu, Y.G. Xiao, Q. Zhang et al., Thermodynamic assessment of the Ag–Ga system, Calphad 30, 316-322 (2006). doi:10.1016/j.calphad.2006.02.004

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}
}