Ga–Y phases

10 phases (tier A 7, tier C 2, liquid 1); 9 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 · Ga–Y system page · Markdown · field reference

Phases of the Ga–Y system (10)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
ORTHORHOMBIC_A11 phase:ga-y:a11-orthorhombic	alpha-Ga · A11 · oC8 · Cmce (64)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–302.91 K, x(Y) 0–0	3	1
BCC_A2 phase:ga-y:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 1760–1790 K	3	1
FCC_A1 phase:ga-y:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	not stable in 1 calculated diagram(s)	0	1
GA2Y_C32 phase:ga-y:ga2y-c32	AlB2 · C32 · hP3 · P6/mmm (191)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1623.04 K, x(Y) 0.33333–0.33333	9	1
GA3Y5_LT phase:ga-y:ga3y5	Ba5Si3 · tP32 · P4/ncc (130)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1073.42 K, x(Y) 0.625–0.625	2	1
GA3Y5_D88 phase:ga-y:ga3y5-d88	Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 1272.72–1574.14 K, x(Y) 0.625–0.625	8	1
GA3Y5_MT phase:ga-y:ga3y5-mt	Ga3Y5 · mC32 · C2/m (12)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 1073.42–1272.72 K, x(Y) 0.625–0.625	4	1
GAY_B33 phase:ga-y:gay-b33	CrB · B33 · oC8 · Cmcm (63)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1671.58 K, x(Y) 0.5–0.5	9	1
HCP_A3 phase:ga-y:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1750 K, x(Y) 1–1	10	1
LIQUID phase:ga-y:liquid	liquid	liquid	stable in 1 of 1 calculated diagram(s): 302.32–2500 K, x(Y) 0–1	21	1

ORTHORHOMBIC_A11 (Ga–Y)

Id: phase:ga-y: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 1 of 1 calculated diagram(s): 300–302.91 K, x(Y) 0–0
Literature: 3 values (3 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ga-y:a11-orthorhombic, corpus:phase:ga-y:orthorhombic-a11
paper: paper:10.1007/s10973-012-2861-x:(Ga)
tdb: tdb:GaY-13Idb.tdb:ORTHORHOMBIC_A11

TDB models of ORTHORHOMBIC_A11 (1): PHASE and CONSTITUENT statements as written

GaY-13Idb.tdb: ORTHORHOMBIC_A11, type code %, sha256 cbddd22351605c04…

48: PHASE ORTHORHOMBIC_A11 % 1 1 !
49: CONST ORTHORHOMBIC_A11 : GA : !

Example references (2 of 2; assessments first):

doi:10.1007/s10973-012-2861-x M. Idbenali, C. Servant, Thermodynamic evaluation of the Ga–Y system, J Therm Anal Calorim 112, 245-253 (2013).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(79)90170-x S.P Yatsenko, A.A Semyannikov, B.G Semenov, K.A Chuntonov, Phase diagrams of rare earth metals with gallium, Journal of the Less Common Metals 64, 185-199 (1979).
cited as the source of values for this phase

BCC_A2 (Ga–Y)

Id: phase:ga-y:bcc-a2; status assigned
Structure: W · A2 · cI2 · Im-3m (229); type st:a2-w-ci2; tier A: standard phase name; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 1760–1790 K
Literature: 3 values (3 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ga-y:bcc-a2
paper: paper:10.1007/s10973-012-2861-x:β(Y)
tdb: tdb:GaY-13Idb.tdb:BCC_A2

TDB models of BCC_A2 (1): PHASE and CONSTITUENT statements as written

GaY-13Idb.tdb: BCC_A2, type code %B, sha256 cbddd22351605c04…

38: PHASE BCC_A2 %B 2 1 3 !
39: CONST BCC_A2 : GA Y : VA : !

Example references (2 of 2; assessments first):

doi:10.1007/s10973-012-2861-x M. Idbenali, C. Servant, Thermodynamic evaluation of the Ga–Y system, J Therm Anal Calorim 112, 245-253 (2013).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(79)90170-x S.P Yatsenko, A.A Semyannikov, B.G Semenov, K.A Chuntonov, Phase diagrams of rare earth metals with gallium, Journal of the Less Common Metals 64, 185-199 (1979).
cited as the source of values for this phase

FCC_A1 (Ga–Y)

Id: phase:ga-y:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; tier A: standard phase name; confidence high
Stability: not stable in 1 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:ga-y:fcc-a1
tdb: tdb:GaY-13Idb.tdb:FCC_A1

TDB models of FCC_A1 (1): PHASE and CONSTITUENT statements as written

GaY-13Idb.tdb: FCC_A1, type code %A, sha256 cbddd22351605c04…

33: PHASE FCC_A1 %A 2 1 1 !
34: CONST FCC_A1 : GA Y : VA : !

Example references (1 of 1; assessments first):

doi:10.1007/s10973-012-2861-x M. Idbenali, C. Servant, Thermodynamic evaluation of the Ga–Y system, J Therm Anal Calorim 112, 245-253 (2013).
assessment that models this phase

GA2Y_C32 (Ga–Y)

Id: phase:ga-y:ga2y-c32; status assigned
Structure: AlB2 · C32 · hP3 · P6/mmm (191); type st:c32-alb2-hp3; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaaaacvq and oqmd-30368, space group 191
Stoichiometry: Ga 0.6667, Y 0.3333
Stability: stable in 1 of 1 calculated diagram(s): 300–1623.04 K, x(Y) 0.33333–0.33333
Literature: 9 values (9 accepted) from 1 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ga-y:ga2y-c32
mp: mp:mp-aaaaacvq
oqmd: oqmd:oqmd-30368
paper: paper:10.1007/s10973-012-2861-x:Ga2Y
tdb: tdb:GaY-13Idb.tdb:GA2Y_C32

TDB models of GA2Y_C32 (1): PHASE and CONSTITUENT statements as written

GaY-13Idb.tdb: GA2Y_C32, type code %, sha256 cbddd22351605c04…

53: PHASE GA2Y_C32 % 2 2 1 !
54: CONST GA2Y_C32 : GA : Y : !

Example references (2 of 2; assessments first):

doi:10.1007/s10973-012-2861-x M. Idbenali, C. Servant, Thermodynamic evaluation of the Ga–Y system, J Therm Anal Calorim 112, 245-253 (2013).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(79)90170-x S.P Yatsenko, A.A Semyannikov, B.G Semenov, K.A Chuntonov, Phase diagrams of rare earth metals with gallium, Journal of the Less Common Metals 64, 185-199 (1979).
cited as the source of values for this phase

GA3Y5_LT (Ga–Y)

Id: phase:ga-y:ga3y5; status assigned
Structure: Ba5Si3 · tP32 · P4/ncc (130); type st:ba5si3-tp32; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) doi:10.1016/j.calphad.2025.102833
Caveat: not certain from the name or DFT alone (no_structure_token, polymorph_family:other phases of this system have the same composition); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Ga 0.3750, Y 0.6250
Stability: stable in 1 of 1 calculated diagram(s): 300–1073.42 K, x(Y) 0.625–0.625
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ga-y:ga3y5
paper: paper:10.1007/s10973-012-2861-x:L_Ga3Y5
tdb: tdb:GaY-13Idb.tdb:GA3Y5_LT

TDB models of GA3Y5_LT (1): PHASE and CONSTITUENT statements as written

GaY-13Idb.tdb: GA3Y5_LT, type code %, sha256 cbddd22351605c04…

63: PHASE GA3Y5_LT % 2 3 5 !
64: CONST GA3Y5_LT : GA : Y : !

Example references (2 of 2; assessments first):

doi:10.1007/s10973-012-2861-x M. Idbenali, C. Servant, Thermodynamic evaluation of the Ga–Y system, J Therm Anal Calorim 112, 245-253 (2013).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(79)90170-x S.P Yatsenko, A.A Semyannikov, B.G Semenov, K.A Chuntonov, Phase diagrams of rare earth metals with gallium, Journal of the Less Common Metals 64, 185-199 (1979).
cited as the source of values for this phase

GA3Y5_D88 (Ga–Y)

Id: phase:ga-y:ga3y5-d88; status assigned
Structure: Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193); type st:d8-8-mn5si3-hp16; tier A: standard phase name; confidence high
Stoichiometry: Ga 0.3750, Y 0.6250
Stability: stable in 1 of 1 calculated diagram(s): 1272.72–1574.14 K, x(Y) 0.625–0.625
Literature: 8 values (8 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ga-y:ga3y5-d88
paper: paper:10.1007/s10973-012-2861-x:H_Ga3Y5
tdb: tdb:GaY-13Idb.tdb:GA3Y5_D88

TDB models of GA3Y5_D88 (1): PHASE and CONSTITUENT statements as written

GaY-13Idb.tdb: GA3Y5_D88, type code %, sha256 cbddd22351605c04…

73: PHASE GA3Y5_D88 % 2 3 5 !
74: CONST GA3Y5_D88 : GA : Y : !

Example references (2 of 2; assessments first):

doi:10.1007/s10973-012-2861-x M. Idbenali, C. Servant, Thermodynamic evaluation of the Ga–Y system, J Therm Anal Calorim 112, 245-253 (2013).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(79)90170-x S.P Yatsenko, A.A Semyannikov, B.G Semenov, K.A Chuntonov, Phase diagrams of rare earth metals with gallium, Journal of the Less Common Metals 64, 185-199 (1979).
cited as the source of values for this phase

GA3Y5_MT (Ga–Y)

Id: phase:ga-y:ga3y5-mt; status assigned
Structure: Ga3Y5 · mC32 · C2/m (12); type st:ga3y5-mc32; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) doi:10.1016/j.calphad.2025.102833
Caveat: not certain from the name or DFT alone (name_has_descriptive_tokens:MT, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Ga 0.3750, Y 0.6250
Stability: stable in 1 of 1 calculated diagram(s): 1073.42–1272.72 K, x(Y) 0.625–0.625
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ga-y:ga3y5-mt
paper: paper:10.1007/s10973-012-2861-x:M_Ga3Y5
tdb: tdb:GaY-13Idb.tdb:GA3Y5_MT

TDB models of GA3Y5_MT (1): PHASE and CONSTITUENT statements as written

GaY-13Idb.tdb: GA3Y5_MT, type code %, sha256 cbddd22351605c04…

68: PHASE GA3Y5_MT % 2 3 5 !
69: CONST GA3Y5_MT : GA : Y : !

Example references (2 of 2; assessments first):

doi:10.1007/s10973-012-2861-x M. Idbenali, C. Servant, Thermodynamic evaluation of the Ga–Y system, J Therm Anal Calorim 112, 245-253 (2013).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(79)90170-x S.P Yatsenko, A.A Semyannikov, B.G Semenov, K.A Chuntonov, Phase diagrams of rare earth metals with gallium, Journal of the Less Common Metals 64, 185-199 (1979).
cited as the source of values for this phase

GAY_B33 (Ga–Y)

Id: phase:ga-y:gay-b33; status assigned
Structure: CrB · B33 · oC8 · Cmcm (63); type st:b33-crb-oc8; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaaaaqxg and oqmd-30366, space group 63
Stoichiometry: Ga 0.5000, Y 0.5000
Stability: stable in 1 of 1 calculated diagram(s): 300–1671.58 K, x(Y) 0.5–0.5
Literature: 9 values (9 accepted) from 1 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ga-y:gay-b33
mp: mp:mp-aaaaaqxg
oqmd: oqmd:oqmd-30366
paper: paper:10.1007/s10973-012-2861-x:GaY
tdb: tdb:GaY-13Idb.tdb:GAY_B33

TDB models of GAY_B33 (1): PHASE and CONSTITUENT statements as written

GaY-13Idb.tdb: GAY_B33, type code %, sha256 cbddd22351605c04…

58: PHASE GAY_B33 % 2 1 1 !
59: CONST GAY_B33 : GA : Y : !

Example references (2 of 2; assessments first):

doi:10.1007/s10973-012-2861-x M. Idbenali, C. Servant, Thermodynamic evaluation of the Ga–Y system, J Therm Anal Calorim 112, 245-253 (2013).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(79)90170-x S.P Yatsenko, A.A Semyannikov, B.G Semenov, K.A Chuntonov, Phase diagrams of rare earth metals with gallium, Journal of the Less Common Metals 64, 185-199 (1979).
cited as the source of values for this phase

HCP_A3 (Ga–Y)

Id: phase:ga-y: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 1 of 1 calculated diagram(s): 300–1750 K, x(Y) 1–1
Literature: 10 values (10 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ga-y:hcp-a3
paper: paper:10.1007/s10973-012-2861-x:α(Y)
tdb: tdb:GaY-13Idb.tdb:HCP_A3

TDB models of HCP_A3 (1): PHASE and CONSTITUENT statements as written

GaY-13Idb.tdb: HCP_A3, type code %A, sha256 cbddd22351605c04…

43: PHASE HCP_A3 %A 2 1 0.5 !
44: CONST HCP_A3 : GA Y : VA : !

Example references (2 of 2; assessments first):

doi:10.1007/s10973-012-2861-x M. Idbenali, C. Servant, Thermodynamic evaluation of the Ga–Y system, J Therm Anal Calorim 112, 245-253 (2013).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(79)90170-x S.P Yatsenko, A.A Semyannikov, B.G Semenov, K.A Chuntonov, Phase diagrams of rare earth metals with gallium, Journal of the Less Common Metals 64, 185-199 (1979).
cited as the source of values for this phase

LIQUID (Ga–Y)

Id: phase:ga-y:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 302.32–2500 K, x(Y) 0–1
Literature: 21 values (21 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ga-y:liquid
paper: paper:10.1007/s10973-012-2861-x:L
tdb: tdb:GaY-13Idb.tdb:LIQUID

TDB models of LIQUID (1): PHASE and CONSTITUENT statements as written

GaY-13Idb.tdb: LIQUID, type code %, sha256 cbddd22351605c04…

28: PHASE LIQUID:L % 1 1 !
29: CONST LIQUID:L : GA Y : !

Example references (2 of 2; assessments first):

doi:10.1007/s10973-012-2861-x M. Idbenali, C. Servant, Thermodynamic evaluation of the Ga–Y system, J Therm Anal Calorim 112, 245-253 (2013).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(79)90170-x S.P Yatsenko, A.A Semyannikov, B.G Semenov, K.A Chuntonov, Phase diagrams of rare earth metals with gallium, Journal of the Less Common Metals 64, 185-199 (1979).
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}
}