Ag–Ga phases

7 phases (tier A 5, liquid 1, needs_review 1); 6 stable in a calculated diagram. Structure types are assigned only when the stored evidence supports an assignment under the stated tier rules (tier A: standard phase name; tier B: unique Materials Project + OQMD on-hull match, DFT-supported; tier C: one structure stated by the assessment's crystallographic table, assessor-stated); other phases list candidates and are marked needs_review. Stability is from phase diagrams calculated with pycalphad from the SGTE binary collection (evidence class: model).

Data: interactive registry · full JSON · Ag–Ga system page · Markdown · field reference

Phases of the Ag–Ga system (7)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
ORTHORHOMBIC_A11 phase:ag-ga:a11-orthorhombic	alpha-Ga · A11 · oC8 · Cmce (64)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–302.84 K, x(Ga) 1–1	7	2
AG2GA_C22 phase:ag-ga:ag2ga-c22	Fe2P · C22 · hP9 · P-62m (189)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–721.68 K, x(Ga) 0.24048–0.33329	23	2
AG3GA2_B2 phase:ag-ga:ag3ga2-b2		needs_review	stable in 2 of 2 calculated diagram(s): 300–581.05 K, x(Ga) 0.4–0.4	3	2
BCC_A2 phase:ag-ga:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	not stable in 2 calculated diagram(s)	0	2
FCC_A1 phase:ag-ga:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–2500 K, x(Ga) 0–0.80745	21	2
HCP_A3 phase:ag-ga:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 666.23–886.8 K, x(Ga) 0.20843–0.36275	31	2
LIQUID phase:ag-ga:liquid	liquid	liquid	stable in 2 of 2 calculated diagram(s): 302.84–2500 K, x(Ga) 0–1	32	2

ORTHORHOMBIC_A11 (Ag–Ga)

Id: phase:ag-ga:a11-orthorhombic; status assigned
Structure: alpha-Ga · A11 · oC8 · Cmce (64); type st:a11-alpha-ga-oc8; tier A: standard phase name; confidence high
Stoichiometry: Ga 1.0000
Stability: stable in 2 of 2 calculated diagram(s): 300–302.84 K, x(Ga) 1–1
Literature: 7 values (7 accepted) from 2 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:ag-ga:a11-orthorhombic, corpus:phase:ag-ga:orthorhombic-a11
paper: paper:10.1016/j.calphad.2006.02.004:Ga, paper:10.1016/j.jallcom.2010.08.136:Orthorhombic_GA
tdb: tdb:AgGa-06Zha.tdb:ORTHORHOMBIC_A11, tdb:AgGa-11Gie.tdb:ORTHORHOMBIC_A11

TDB models of ORTHORHOMBIC_A11 (2): PHASE and CONSTITUENT statements as written

AgGa-06Zha.tdb: ORTHORHOMBIC_A11, type code %, sha256 5964e1fd9ccd10cf…

51: PHASE ORTHORHOMBIC_A11 % 1 1 !
52: CONST ORTHORHOMBIC_A11 : GA : !

AgGa-11Gie.tdb: ORTHORHOMBIC_A11, type code %, sha256 3ca7f3c42581b3ee…

40: PHASE ORTHORHOMBIC_A11 % 1 1 !
41: CONST ORTHORHOMBIC_A11 : GA : !

Example references (5 of 5; assessments first):

doi:10.1016/j.calphad.2006.02.004 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).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.08.136 Wojciech Gierlotka, Dominika Jendrzejczyk-Handzlik, Thermodynamic description of the binary Ag–Ga system, Journal of Alloys and Compounds 509, 38-42 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/0001-6160(72)90097-1 B. Predel, D.W. Stein, Bildungsenthalpien binärer verbindungen des galliums mit kupfer, silber und gold sowie analyse der thermodynamischen eigenschaften von -elektronen-verbindungen, Acta Metallurgica 20, 681-692 (1972).
cited as the source of values for this phase
doi:10.1002/zaac.19362260215 Friedrich Weibke, Karl Meisel, Lotte Wiegels, Das Zustandsdiagramm des Systems Silber–Gallium, Z. Anorg. Allg. Chem. 226, 201-208 (1936).
cited as the source of values for this phase
doi:10.1016/0022-5088(91)90272-6 P. Feschotte, P. Bass, Un nouveau composé intermétallique très timide: AgGa, Journal of the Less Common Metals 171, 157-162 (1991).
cited as the source of values for this phase

AG2GA_C22 (Ag–Ga)

Id: phase:ag-ga:ag2ga-c22; status assigned
Structure: Fe2P · C22 · hP9 · P-62m (189); type st:c22-fe2p-hp9; tier A: standard phase name; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 300–721.68 K, x(Ga) 0.24048–0.33329
Literature: 23 values (23 accepted) from 2 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:ag-ga:ag2ga-c22
paper: paper:10.1016/j.calphad.2006.02.004:Ag2Ga, paper:10.1016/j.calphad.2006.02.004:Ag2Ga/hcp, paper:10.1016/j.jallcom.2010.08.136:ζ′
tdb: tdb:AgGa-06Zha.tdb:AG2GA_C22, tdb:AgGa-11Gie.tdb:AG2GA_C22

TDB models of AG2GA_C22 (2): PHASE and CONSTITUENT statements as written

AgGa-06Zha.tdb: AG2GA_C22, type code %, sha256 5964e1fd9ccd10cf…

56: PHASE AG2GA_C22 % 2 2 1 !
57: CONST AG2GA_C22 : AG : AG GA : !

AgGa-11Gie.tdb: AG2GA_C22, type code %, sha256 3ca7f3c42581b3ee…

45: PHASE AG2GA_C22 % 2 2 1 !
46: CONST AG2GA_C22 : AG : AG GA VA : !

Example references (6 of 6; assessments first):

doi:10.1016/j.calphad.2006.02.004 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).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.08.136 Wojciech Gierlotka, Dominika Jendrzejczyk-Handzlik, Thermodynamic description of the binary Ag–Ga system, Journal of Alloys and Compounds 509, 38-42 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(91)90272-6 P. Feschotte, P. Bass, Un nouveau composé intermétallique très timide: AgGa, Journal of the Less Common Metals 171, 157-162 (1991).
cited as the source of values for this phase
doi:10.1016/0001-6160(72)90097-1 B. Predel, D.W. Stein, Bildungsenthalpien binärer verbindungen des galliums mit kupfer, silber und gold sowie analyse der thermodynamischen eigenschaften von -elektronen-verbindungen, Acta Metallurgica 20, 681-692 (1972).
cited as the source of values for this phase
doi:10.1016/s0925-8388(99)00572-1 A.E Gunnæs, O.B Karlsen, A Olsen, P.T Zagierski, Phase relations and crystal structures in the Ag–Ga system, Journal of Alloys and Compounds 297, 144-155 (2000).
cited as the source of values for this phase
doi:10.1016/j.jallcom.2006.04.036 Y. Zhang, J.K. Liang, J.-B. Li, Q.L. Liu, Y.G. Xiao, Q. Zhang et al., Phase relations of the Ag–Ga–N system, Journal of Alloys and Compounds 429, 184-191 (2007).
cited as the source of values for this phase

AG3GA2_B2 (Ag–Ga)

Id: phase:ag-ga:ag3ga2-b2; status needs_review
No structure assigned. Why: assessment_declared_blocked_by:stoichiometry_contradicts_B2; stoichiometry_contradicts_B2:AgGa-06Zha.tdb; stoichiometry_contradicts_B2:AgGa-11Gie.tdb
Candidate (literature_printed): CsCl · cP2 — printed with a label mapped to this phase
Candidate (name_token): CsCl · B2 · cP2 · Pm-3m (221) — Strukturbericht/word 'B2' in the TDB name
Candidate (sgte_mmc2): CsCl · B2 · cP2 · Pm-3m (221) — Hallstedt 2025 mmc2 row for AG3GA2_B2: Ag3Ga2
Candidate (tdb_comment): CsCl · cP2 · Pm-3m — AgGa-06Zha.tdb: 'Prototype CsCl (cP2, Pm-3m)'
Candidate (tdb_comment): CsCl · cP2 · Pm-3m — AgGa-11Gie.tdb: 'Prototype CsCl (cP2, Pm-3m)'
Stoichiometry: Ag 0.6000, Ga 0.4000
Stability: stable in 2 of 2 calculated diagram(s): 300–581.05 K, x(Ga) 0.4–0.4
Literature: 3 values (3 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ag-ga:ag3ga2-b2
paper: paper:10.1016/j.jallcom.2010.08.136:Ag3Ga2
tdb: tdb:AgGa-06Zha.tdb:AG3GA2_B2, tdb:AgGa-11Gie.tdb:AG3GA2_B2

TDB models of AG3GA2_B2 (2): PHASE and CONSTITUENT statements as written

AgGa-06Zha.tdb: AG3GA2_B2, type code %, sha256 5964e1fd9ccd10cf…

61: PHASE AG3GA2_B2 % 2 3 2 !
62: CONST AG3GA2_B2 : AG : GA : !

AgGa-11Gie.tdb: AG3GA2_B2, type code %, sha256 3ca7f3c42581b3ee…

50: PHASE AG3GA2_B2 % 2 3 2 !
51: CONST AG3GA2_B2 : AG : GA : !

Example references (4 of 4; assessments first):

doi:10.1016/j.jallcom.2010.08.136 Wojciech Gierlotka, Dominika Jendrzejczyk-Handzlik, Thermodynamic description of the binary Ag–Ga system, Journal of Alloys and Compounds 509, 38-42 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2006.02.004 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).
assessment that models this phase
doi:10.1016/0022-5088(91)90272-6 P. Feschotte, P. Bass, Un nouveau composé intermétallique très timide: AgGa, Journal of the Less Common Metals 171, 157-162 (1991).
cited as the source of values for this phase
doi:10.1016/j.jallcom.2006.04.036 Y. Zhang, J.K. Liang, J.-B. Li, Q.L. Liu, Y.G. Xiao, Q. Zhang et al., Phase relations of the Ag–Ga–N system, Journal of Alloys and Compounds 429, 184-191 (2007).
cited as the source of values for this phase

BCC_A2 (Ag–Ga)

Id: phase:ag-ga:bcc-a2; status assigned
Structure: W · A2 · cI2 · Im-3m (229); type st:a2-w-ci2; tier A: standard phase name; confidence high
Stability: not stable in 2 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ag-ga:bcc-a2
tdb: tdb:AgGa-06Zha.tdb:BCC_A2, tdb:AgGa-11Gie.tdb:BCC_A2

TDB models of BCC_A2 (2): PHASE and CONSTITUENT statements as written

AgGa-06Zha.tdb: BCC_A2, type code %B, sha256 5964e1fd9ccd10cf…

41: PHASE BCC_A2 %B 2 1 3 !
42: CONST BCC_A2 : AG GA : VA : !

AgGa-11Gie.tdb: BCC_A2, type code %B, sha256 3ca7f3c42581b3ee…

30: PHASE BCC_A2 %B 2 1 3 !
31: CONST BCC_A2 : AG GA : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2006.02.004 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).
assessment that models this phase
doi:10.1016/j.jallcom.2010.08.136 Wojciech Gierlotka, Dominika Jendrzejczyk-Handzlik, Thermodynamic description of the binary Ag–Ga system, Journal of Alloys and Compounds 509, 38-42 (2011).
assessment that models this phase

FCC_A1 (Ag–Ga)

Id: phase:ag-ga:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; tier A: standard phase name; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 300–2500 K, x(Ga) 0–0.80745
Literature: 21 values (21 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ag-ga:fcc-a1
paper: paper:10.1016/j.calphad.2006.02.004:fcc, paper:10.1016/j.jallcom.2010.08.136:FCC_A1
tdb: tdb:AgGa-06Zha.tdb:FCC_A1, tdb:AgGa-11Gie.tdb:FCC_A1

TDB models of FCC_A1 (2): PHASE and CONSTITUENT statements as written

AgGa-06Zha.tdb: FCC_A1, type code %A, sha256 5964e1fd9ccd10cf…

36: PHASE FCC_A1 %A 2 1 1 !
37: CONST FCC_A1 : AG% GA : VA : !

AgGa-11Gie.tdb: FCC_A1, type code %A, sha256 3ca7f3c42581b3ee…

25: PHASE FCC_A1 %A 2 1 1 !
26: CONST FCC_A1 : AG% GA : VA : !

Example references (5 of 5; assessments first):

doi:10.1016/j.calphad.2006.02.004 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).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.08.136 Wojciech Gierlotka, Dominika Jendrzejczyk-Handzlik, Thermodynamic description of the binary Ag–Ga system, Journal of Alloys and Compounds 509, 38-42 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/0001-6160(72)90097-1 B. Predel, D.W. Stein, Bildungsenthalpien binärer verbindungen des galliums mit kupfer, silber und gold sowie analyse der thermodynamischen eigenschaften von -elektronen-verbindungen, Acta Metallurgica 20, 681-692 (1972).
cited as the source of values for this phase
doi:10.1016/0022-5088(91)90272-6 P. Feschotte, P. Bass, Un nouveau composé intermétallique très timide: AgGa, Journal of the Less Common Metals 171, 157-162 (1991).
cited as the source of values for this phase
doi:10.1016/s0925-8388(99)00572-1 A.E Gunnæs, O.B Karlsen, A Olsen, P.T Zagierski, Phase relations and crystal structures in the Ag–Ga system, Journal of Alloys and Compounds 297, 144-155 (2000).
cited as the source of values for this phase

HCP_A3 (Ag–Ga)

Id: phase:ag-ga:hcp-a3; status assigned
Structure: Mg · A3 · hP2 · P6_3/mmc (194); type st:a3-mg-hp2; tier A: standard phase name; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 666.23–886.8 K, x(Ga) 0.20843–0.36275
Literature: 31 values (31 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ag-ga:hcp-a3
paper: paper:10.1016/j.calphad.2006.02.004:hcp, paper:10.1016/j.jallcom.2010.08.136:HCP_A3
tdb: tdb:AgGa-06Zha.tdb:HCP_A3, tdb:AgGa-11Gie.tdb:HCP_A3

TDB models of HCP_A3 (2): PHASE and CONSTITUENT statements as written

AgGa-06Zha.tdb: HCP_A3, type code %A, sha256 5964e1fd9ccd10cf…

46: PHASE HCP_A3 %A 2 1 0.5 !
47: CONST HCP_A3 : AG GA : VA : !

AgGa-11Gie.tdb: HCP_A3, type code %A, sha256 3ca7f3c42581b3ee…

35: PHASE HCP_A3 %A 2 1 0.5 !
36: CONST HCP_A3 : AG GA : VA : !

Example references (5 of 5; assessments first):

doi:10.1016/j.calphad.2006.02.004 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).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.08.136 Wojciech Gierlotka, Dominika Jendrzejczyk-Handzlik, Thermodynamic description of the binary Ag–Ga system, Journal of Alloys and Compounds 509, 38-42 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(91)90272-6 P. Feschotte, P. Bass, Un nouveau composé intermétallique très timide: AgGa, Journal of the Less Common Metals 171, 157-162 (1991).
cited as the source of values for this phase
doi:10.1016/0001-6160(72)90097-1 B. Predel, D.W. Stein, Bildungsenthalpien binärer verbindungen des galliums mit kupfer, silber und gold sowie analyse der thermodynamischen eigenschaften von -elektronen-verbindungen, Acta Metallurgica 20, 681-692 (1972).
cited as the source of values for this phase
doi:10.1016/s0925-8388(99)00572-1 A.E Gunnæs, O.B Karlsen, A Olsen, P.T Zagierski, Phase relations and crystal structures in the Ag–Ga system, Journal of Alloys and Compounds 297, 144-155 (2000).
cited as the source of values for this phase

LIQUID (Ag–Ga)

Id: phase:ag-ga:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 302.84–2500 K, x(Ga) 0–1
Literature: 32 values (32 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ag-ga:liquid
paper: paper:10.1016/j.calphad.2006.02.004:L, paper:10.1016/j.jallcom.2010.08.136:L
tdb: tdb:AgGa-06Zha.tdb:LIQUID, tdb:AgGa-11Gie.tdb:LIQUID

TDB models of LIQUID (2): PHASE and CONSTITUENT statements as written

AgGa-06Zha.tdb: LIQUID, type code %, sha256 5964e1fd9ccd10cf…

31: PHASE LIQUID:L % 1 1 !
32: CONST LIQUID:L : AG AG3GA GA : !

AgGa-11Gie.tdb: LIQUID, type code %, sha256 3ca7f3c42581b3ee…

20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : AG GA : !

Example references (7 of 7; assessments first):

doi:10.1016/j.calphad.2006.02.004 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).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.08.136 Wojciech Gierlotka, Dominika Jendrzejczyk-Handzlik, Thermodynamic description of the binary Ag–Ga system, Journal of Alloys and Compounds 509, 38-42 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(91)90272-6 P. Feschotte, P. Bass, Un nouveau composé intermétallique très timide: AgGa, Journal of the Less Common Metals 171, 157-162 (1991).
cited as the source of values for this phase
doi:10.1016/0001-6160(72)90097-1 B. Predel, D.W. Stein, Bildungsenthalpien binärer verbindungen des galliums mit kupfer, silber und gold sowie analyse der thermodynamischen eigenschaften von -elektronen-verbindungen, Acta Metallurgica 20, 681-692 (1972).
cited as the source of values for this phase
doi:10.1002/zaac.19362260215 Friedrich Weibke, Karl Meisel, Lotte Wiegels, Das Zustandsdiagramm des Systems Silber–Gallium, Z. Anorg. Allg. Chem. 226, 201-208 (1936).
cited as the source of values for this phase
doi:10.1016/j.jallcom.2006.04.036 Y. Zhang, J.K. Liang, J.-B. Li, Q.L. Liu, Y.G. Xiao, Q. Zhang et al., Phase relations of the Ag–Ga–N system, Journal of Alloys and Compounds 429, 184-191 (2007).
cited as the source of values for this phase
doi:10.1016/s0925-8388(99)00572-1 A.E Gunnæs, O.B Karlsen, A Olsen, P.T Zagierski, Phase relations and crystal structures in the Ag–Ga system, Journal of Alloys and Compounds 297, 144-155 (2000).
cited as the source of values for this phase

Please cite

R. Arróyave, J. Saal, D. Shin, ORCHID-Registry: phase registry of binary systems (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23735970
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 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); the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work). 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_phase_registry_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Registry: phase registry of binary systems}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735970},
  url       = {https://doi.org/10.5281/zenodo.23735970},
  note      = {Version 1, machine-extracted}
}

@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}
}