Ga–Gd phases

10 phases (tier A 6, tier B 1, 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–Gd system page · Markdown · field reference

Phases of the Ga–Gd system (10)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
ORTHORHOMBIC_A11 phase:ga-gd:a11-orthorhombic	alpha-Ga · A11 · oC8 · Cmce (64)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–302.91 K, x(Gd) 0–0	10	3
BCC_A2 phase:ga-gd:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 1508.05–2499.87 K, x(Gd) 0.99999–1	6	3
FCC_A1 phase:ga-gd:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	not stable in 3 calculated diagram(s)	0	3
GA2GD_C32 phase:ga-gd:ga2gd-c32	AlB2 · C32 · hP3 · P6/mmm (191)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–1681.61 K, x(Gd) 0.1949–0.33346	27	3
GA2GD3 phase:ga-gd:ga2gd3	Ga2Gd3 · tI80 · I4/mcm (140)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 3 of 3 calculated diagram(s): 300–1380.29 K, x(Gd) 0.6–0.6	20	3
GA3GD5 phase:ga-gd:ga3gd5	Ba5Si3 · tP32 · P4/ncc (130)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 3 of 3 calculated diagram(s): 300–1363.62 K, x(Gd) 0.625–0.625	20	3
GA6GD phase:ga-gd:ga6gd	Ga6Pu · tP14 · P4/nbm (125)	tier B: DFT-supported (unique MP + OQMD match)	stable in 3 of 3 calculated diagram(s): 300–678.55 K, x(Gd) 0.14286–0.14286	18	3
GAGD_B33 phase:ga-gd:gagd-b33	CrB · B33 · oC8 · Cmcm (63)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–1466.07 K, x(Gd) 0.5–0.5	18	3
HCP_A3 phase:ga-gd:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–1583.06 K, x(Gd) 0.99998–1	11	3
LIQUID phase:ga-gd:liquid	liquid	liquid	stable in 3 of 3 calculated diagram(s): 302.91–2500 K, x(Gd) 0–1	61	3

ORTHORHOMBIC_A11 (Ga–Gd)

Id: phase:ga-gd: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 3 of 3 calculated diagram(s): 300–302.91 K, x(Gd) 0–0
Literature: 10 values (10 accepted) from 2 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:ga-gd:a11-orthorhombic, corpus:phase:ga-gd:orthorhombic-a11
paper: paper:10.1007/s00706-019-02420-8:orth., paper:10.1016/j.matpr.2019.07.598:(αGa)
tdb: tdb:GaGd-19Liu.tdb:ORTHORHOMBIC_A11, tdb:GaGd-20Ait.tdb:ORTHORHOMBIC_A11, tdb:GaGd-23Tam.tdb:ORTHORHOMBIC_A11

TDB models of ORTHORHOMBIC_A11 (3): PHASE and CONSTITUENT statements as written

GaGd-19Liu.tdb: ORTHORHOMBIC_A11, type code %, sha256 c20783412d926e19…

45: PHASE ORTHORHOMBIC_A11 % 1 1 !
46: CONST ORTHORHOMBIC_A11 : GA : !

GaGd-20Ait.tdb: ORTHORHOMBIC_A11, type code %, sha256 c6bc03bf1e76ae90…

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

GaGd-23Tam.tdb: ORTHORHOMBIC_A11, type code %, sha256 87a4fc5f0d2a5c21…

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

Example references (5 of 5; assessments first):

doi:10.1016/j.matpr.2019.07.598 M. AiT Boukideur, N. Selhaoui, F.Z. chrifi Alaoui, A. Iddaoudi, K. Achgar, Thermodynamic modeling of the Ga-Gd binary system, Materials Today: Proceedings 24, 71-75 (2020).
assessment that models this phase; reports values for this phase
doi:10.1007/s00706-019-02420-8 Jinming Liu, Fei Li, Jinping Liu, Xu Zhang, Tahir Ahmad, Tongxiang Liang, Thermodynamic description of the Ce–Ga and Ga–Gd systems, Monatsh Chem 150, 1225-1233 (2019).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2023.102596 Rkia Tamim, Olivier Rapaud, Rémy Boulesteix, Alexandre Maître, Thermodynamic assessment of the Ga–Gd, Ga–Nb and Gd–Nb binary phase diagrams towards the Ga–Gd–Nb system, Calphad 82, 102596 (2023).
assessment that models this phase
doi:10.1007/bf02841585 A. Palenzona, S. Clrafici, The Ga-Gd (Gallium-Gadolinium) system, Bulletin of Alloy Phase Diagrams 11, 67-72 (1990).
cited as the source of values for this phase
doi:10.1016/0022-5088(81)90171-5 Joshua Pelleg, L Zevin, The Gd-Ga system: Redetermination of the phase diagram on the gallium-rich side, Journal of the Less Common Metals 77, 197-203 (1981).
cited as the source of values for this phase

BCC_A2 (Ga–Gd)

Id: phase:ga-gd: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 3 of 3 calculated diagram(s): 1508.05–2499.87 K, x(Gd) 0.99999–1
Literature: 6 values (6 accepted) from 2 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:ga-gd:bcc-a2
paper: paper:10.1007/s00706-019-02420-8:bcc, paper:10.1016/j.matpr.2019.07.598:(βGd)
tdb: tdb:GaGd-19Liu.tdb:BCC_A2, tdb:GaGd-20Ait.tdb:BCC_A2, tdb:GaGd-23Tam.tdb:BCC_A2

TDB models of BCC_A2 (3): PHASE and CONSTITUENT statements as written

GaGd-19Liu.tdb: BCC_A2, type code %B, sha256 c20783412d926e19…

35: PHASE BCC_A2 %B 2 1 3 !
36: CONST BCC_A2 : GA GD% : VA : !

GaGd-20Ait.tdb: BCC_A2, type code %B, sha256 c6bc03bf1e76ae90…

39: PHASE BCC_A2 %B 2 1 3 !
40: CONST BCC_A2 : GA GD% : VA : !

GaGd-23Tam.tdb: BCC_A2, type code %B, sha256 87a4fc5f0d2a5c21…

31: PHASE BCC_A2 %B 2 1 3 !
32: CONST BCC_A2 : GA GD% : VA : !

Example references (4 of 4; assessments first):

doi:10.1016/j.matpr.2019.07.598 M. AiT Boukideur, N. Selhaoui, F.Z. chrifi Alaoui, A. Iddaoudi, K. Achgar, Thermodynamic modeling of the Ga-Gd binary system, Materials Today: Proceedings 24, 71-75 (2020).
assessment that models this phase; reports values for this phase
doi:10.1007/s00706-019-02420-8 Jinming Liu, Fei Li, Jinping Liu, Xu Zhang, Tahir Ahmad, Tongxiang Liang, Thermodynamic description of the Ce–Ga and Ga–Gd systems, Monatsh Chem 150, 1225-1233 (2019).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2023.102596 Rkia Tamim, Olivier Rapaud, Rémy Boulesteix, Alexandre Maître, Thermodynamic assessment of the Ga–Gd, Ga–Nb and Gd–Nb binary phase diagrams towards the Ga–Gd–Nb system, Calphad 82, 102596 (2023).
assessment that models this phase
doi:10.1007/bf02841585 A. Palenzona, S. Clrafici, The Ga-Gd (Gallium-Gadolinium) system, Bulletin of Alloy Phase Diagrams 11, 67-72 (1990).
cited as the source of values for this phase

FCC_A1 (Ga–Gd)

Id: phase:ga-gd: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 3 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ga-gd:fcc-a1
tdb: tdb:GaGd-19Liu.tdb:FCC_A1, tdb:GaGd-20Ait.tdb:FCC_A1, tdb:GaGd-23Tam.tdb:FCC_A1

TDB models of FCC_A1 (3): PHASE and CONSTITUENT statements as written

GaGd-19Liu.tdb: FCC_A1, type code %A, sha256 c20783412d926e19…

30: PHASE FCC_A1 %A 2 1 1 !
31: CONST FCC_A1 : GA GD : VA : !

GaGd-20Ait.tdb: FCC_A1, type code %A, sha256 c6bc03bf1e76ae90…

34: PHASE FCC_A1 %A 2 1 1 !
35: CONST FCC_A1 : GA GD : VA : !

GaGd-23Tam.tdb: FCC_A1, type code %A, sha256 87a4fc5f0d2a5c21…

26: PHASE FCC_A1 %A 2 1 1 !
27: CONST FCC_A1 : GA GD : VA : !

Example references (3 of 3; assessments first):

doi:10.1007/s00706-019-02420-8 Jinming Liu, Fei Li, Jinping Liu, Xu Zhang, Tahir Ahmad, Tongxiang Liang, Thermodynamic description of the Ce–Ga and Ga–Gd systems, Monatsh Chem 150, 1225-1233 (2019).
assessment that models this phase
doi:10.1016/j.calphad.2023.102596 Rkia Tamim, Olivier Rapaud, Rémy Boulesteix, Alexandre Maître, Thermodynamic assessment of the Ga–Gd, Ga–Nb and Gd–Nb binary phase diagrams towards the Ga–Gd–Nb system, Calphad 82, 102596 (2023).
assessment that models this phase
doi:10.1016/j.matpr.2019.07.598 M. AiT Boukideur, N. Selhaoui, F.Z. chrifi Alaoui, A. Iddaoudi, K. Achgar, Thermodynamic modeling of the Ga-Gd binary system, Materials Today: Proceedings 24, 71-75 (2020).
assessment that models this phase

GA2GD_C32 (Ga–Gd)

Id: phase:ga-gd:ga2gd-c32; status assigned
Structure: AlB2 · C32 · hP3 · P6/mmm (191); type st:c32-alb2-hp3; tier A: standard phase name; confidence high
Caveat: partitioned order/disorder model in GaGd-19Liu.tdb also describes the disordered state
Stability: stable in 3 of 3 calculated diagram(s): 300–1681.61 K, x(Gd) 0.1949–0.33346
Literature: 27 values (27 accepted) from 2 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:ga-gd:ga2gd-c32
paper: paper:10.1007/s00706-019-02420-8:Ga2Gd, paper:10.1016/j.matpr.2019.07.598:Ga2Gd
tdb: tdb:GaGd-19Liu.tdb:GA2GD_C32, tdb:GaGd-20Ait.tdb:GA2GD_C32, tdb:GaGd-23Tam.tdb:GA2GD_C32

TDB models of GA2GD_C32 (3): PHASE and CONSTITUENT statements as written

GaGd-19Liu.tdb: GA2GD_C32, type code %, sha256 c20783412d926e19…

55: PHASE GA2GD_C32 % 2 2 1 !
56: CONST GA2GD_C32 : GA% GD : GA GD% : !

GaGd-20Ait.tdb: GA2GD_C32, type code %, sha256 c6bc03bf1e76ae90…

59: PHASE GA2GD_C32 % 2 2 1 !
60: CONST GA2GD_C32 : GA : GA GD% : !

GaGd-23Tam.tdb: GA2GD_C32, type code %, sha256 87a4fc5f0d2a5c21…

51: PHASE GA2GD_C32 % 2 2 1 !
52: CONST GA2GD_C32 : GA : GA GD% : !

Example references (7 of 7; assessments first):

doi:10.1016/j.matpr.2019.07.598 M. AiT Boukideur, N. Selhaoui, F.Z. chrifi Alaoui, A. Iddaoudi, K. Achgar, Thermodynamic modeling of the Ga-Gd binary system, Materials Today: Proceedings 24, 71-75 (2020).
assessment that models this phase; reports values for this phase
doi:10.1007/s00706-019-02420-8 Jinming Liu, Fei Li, Jinping Liu, Xu Zhang, Tahir Ahmad, Tongxiang Liang, Thermodynamic description of the Ce–Ga and Ga–Gd systems, Monatsh Chem 150, 1225-1233 (2019).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2023.102596 Rkia Tamim, Olivier Rapaud, Rémy Boulesteix, Alexandre Maître, Thermodynamic assessment of the Ga–Gd, Ga–Nb and Gd–Nb binary phase diagrams towards the Ga–Gd–Nb system, Calphad 82, 102596 (2023).
assessment that models this phase
doi:10.1007/bf02841585 A. Palenzona, S. Clrafici, The Ga-Gd (Gallium-Gadolinium) system, Bulletin of Alloy Phase Diagrams 11, 67-72 (1990).
cited as the source of values for this phase
doi:10.1016/0022-5088(76)90277-0 K.H.J. Buschow, W.W.v.d. Hoogenhof, Magnetic properties and phase relationships of gadolinium-gallium compounds, Journal of the Less Common Metals 45, 309-313 (1976).
cited as the source of values for this phase
doi:10.1016/0022-5088(81)90171-5 Joshua Pelleg, L Zevin, The Gd-Ga system: Redetermination of the phase diagram on the gallium-rich side, Journal of the Less Common Metals 77, 197-203 (1981).
cited as the source of values for this phase
doi:10.1016/s0925-8388(01)00913-6 S.V Meschel, O.J Kleppa, Standard enthalpies of formation of some lanthanide gallides by high temperature direct synthesis calorimetry, Journal of Alloys and Compounds 319, 204-209 (2001).
cited as the source of values for this phase

GA2GD3 (Ga–Gd)

Id: phase:ga-gd:ga2gd3; status assigned
Structure: Ga2Gd3 · tI80 · I4/mcm (140); type st:ga2gd3-ti80; 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 (mp_oqmd_space_groups_differ, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Ga 0.4000, Gd 0.6000
Stability: stable in 3 of 3 calculated diagram(s): 300–1380.29 K, x(Gd) 0.6–0.6
Literature: 20 values (20 accepted) from 3 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:ga-gd:ga2gd3
paper: paper:10.1007/s00706-019-02420-8:Ga2Gd3, paper:10.1016/j.calphad.2023.102596:Ga2Gd3, paper:10.1016/j.matpr.2019.07.598:Ga2Gd3
tdb: tdb:GaGd-19Liu.tdb:GA2GD3, tdb:GaGd-20Ait.tdb:GA2GD3, tdb:GaGd-23Tam.tdb:GA2GD3

TDB models of GA2GD3 (3): PHASE and CONSTITUENT statements as written

GaGd-19Liu.tdb: GA2GD3, type code %, sha256 c20783412d926e19…

65: PHASE GA2GD3 % 2 2 3 !
66: CONST GA2GD3 : GA : GD : !

GaGd-20Ait.tdb: GA2GD3, type code %, sha256 c6bc03bf1e76ae90…

69: PHASE GA2GD3 % 2 2 3 !
70: CONST GA2GD3 : GA : GD : !

GaGd-23Tam.tdb: GA2GD3, type code %, sha256 87a4fc5f0d2a5c21…

61: PHASE GA2GD3 % 2 2 3 !
62: CONST GA2GD3 : GA : GD : !

Example references (5 of 5; assessments first):

doi:10.1007/s00706-019-02420-8 Jinming Liu, Fei Li, Jinping Liu, Xu Zhang, Tahir Ahmad, Tongxiang Liang, Thermodynamic description of the Ce–Ga and Ga–Gd systems, Monatsh Chem 150, 1225-1233 (2019).
assessment that models this phase; reports values for this phase
doi:10.1016/j.matpr.2019.07.598 M. AiT Boukideur, N. Selhaoui, F.Z. chrifi Alaoui, A. Iddaoudi, K. Achgar, Thermodynamic modeling of the Ga-Gd binary system, Materials Today: Proceedings 24, 71-75 (2020).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2023.102596 Rkia Tamim, Olivier Rapaud, Rémy Boulesteix, Alexandre Maître, Thermodynamic assessment of the Ga–Gd, Ga–Nb and Gd–Nb binary phase diagrams towards the Ga–Gd–Nb system, Calphad 82, 102596 (2023).
assessment that models this phase; reports values for this phase
doi:10.1007/bf02841585 A. Palenzona, S. Clrafici, The Ga-Gd (Gallium-Gadolinium) system, Bulletin of Alloy Phase Diagrams 11, 67-72 (1990).
cited as the source of values for this phase
doi:10.1016/0022-5088(76)90277-0 K.H.J. Buschow, W.W.v.d. Hoogenhof, Magnetic properties and phase relationships of gadolinium-gallium compounds, Journal of the Less Common Metals 45, 309-313 (1976).
cited as the source of values for this phase

GA3GD5 (Ga–Gd)

Id: phase:ga-gd:ga3gd5; 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_on_hull_entry_in_both, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Ga 0.3750, Gd 0.6250
Stability: stable in 3 of 3 calculated diagram(s): 300–1363.62 K, x(Gd) 0.625–0.625
Literature: 20 values (20 accepted) from 3 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:ga-gd:ga3gd5
paper: paper:10.1007/s00706-019-02420-8:Ga3Gd5, paper:10.1016/j.calphad.2023.102596:Ga3Gd5, paper:10.1016/j.matpr.2019.07.598:Ga3Gd5
tdb: tdb:GaGd-19Liu.tdb:GA3GD5, tdb:GaGd-20Ait.tdb:GA3GD5, tdb:GaGd-23Tam.tdb:GA3GD5

TDB models of GA3GD5 (3): PHASE and CONSTITUENT statements as written

GaGd-19Liu.tdb: GA3GD5, type code %, sha256 c20783412d926e19…

70: PHASE GA3GD5 % 2 3 5 !
71: CONST GA3GD5 : GA : GD : !

GaGd-20Ait.tdb: GA3GD5, type code %, sha256 c6bc03bf1e76ae90…

74: PHASE GA3GD5 % 2 3 5 !
75: CONST GA3GD5 : GA : GD : !

GaGd-23Tam.tdb: GA3GD5, type code %, sha256 87a4fc5f0d2a5c21…

66: PHASE GA3GD5 % 2 3 5 !
67: CONST GA3GD5 : GA : GD : !

Example references (5 of 5; assessments first):

doi:10.1007/s00706-019-02420-8 Jinming Liu, Fei Li, Jinping Liu, Xu Zhang, Tahir Ahmad, Tongxiang Liang, Thermodynamic description of the Ce–Ga and Ga–Gd systems, Monatsh Chem 150, 1225-1233 (2019).
assessment that models this phase; reports values for this phase
doi:10.1016/j.matpr.2019.07.598 M. AiT Boukideur, N. Selhaoui, F.Z. chrifi Alaoui, A. Iddaoudi, K. Achgar, Thermodynamic modeling of the Ga-Gd binary system, Materials Today: Proceedings 24, 71-75 (2020).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2023.102596 Rkia Tamim, Olivier Rapaud, Rémy Boulesteix, Alexandre Maître, Thermodynamic assessment of the Ga–Gd, Ga–Nb and Gd–Nb binary phase diagrams towards the Ga–Gd–Nb system, Calphad 82, 102596 (2023).
assessment that models this phase; reports values for this phase
doi:10.1007/bf02841585 A. Palenzona, S. Clrafici, The Ga-Gd (Gallium-Gadolinium) system, Bulletin of Alloy Phase Diagrams 11, 67-72 (1990).
cited as the source of values for this phase
doi:10.1016/0022-5088(76)90277-0 K.H.J. Buschow, W.W.v.d. Hoogenhof, Magnetic properties and phase relationships of gadolinium-gallium compounds, Journal of the Less Common Metals 45, 309-313 (1976).
cited as the source of values for this phase

GA6GD (Ga–Gd)

Id: phase:ga-gd:ga6gd; status assigned
Structure: Ga6Pu · tP14 · P4/nbm (125); type st:ga6pu-tp14; tier B: DFT-supported (unique MP + OQMD match); confidence high
Stoichiometry: Ga 0.8571, Gd 0.1429
Stability: stable in 3 of 3 calculated diagram(s): 300–678.55 K, x(Gd) 0.14286–0.14286
Literature: 18 values (18 accepted) from 3 papers
Interactive: phase registry entry

Names (9): corpus: corpus:phase:ga-gd:ga6gd
mp: mp:mp-aaackwju
oqmd: oqmd:oqmd-1484077
paper: paper:10.1007/s00706-019-02420-8:Ga6Gd, paper:10.1016/j.calphad.2023.102596:Ga6Gd, paper:10.1016/j.matpr.2019.07.598:Ga6Gd
tdb: tdb:GaGd-19Liu.tdb:GA6GD, tdb:GaGd-20Ait.tdb:GA6GD, tdb:GaGd-23Tam.tdb:GA6GD

TDB models of GA6GD (3): PHASE and CONSTITUENT statements as written

GaGd-19Liu.tdb: GA6GD, type code %, sha256 c20783412d926e19…

50: PHASE GA6GD % 2 6 1 !
51: CONST GA6GD : GA : GD : !

GaGd-20Ait.tdb: GA6GD, type code %, sha256 c6bc03bf1e76ae90…

54: PHASE GA6GD % 2 6 1 !
55: CONST GA6GD : GA : GD : !

GaGd-23Tam.tdb: GA6GD, type code %, sha256 87a4fc5f0d2a5c21…

46: PHASE GA6GD % 2 6 1 !
47: CONST GA6GD : GA : GD : !

Example references (5 of 5; assessments first):

doi:10.1016/j.matpr.2019.07.598 M. AiT Boukideur, N. Selhaoui, F.Z. chrifi Alaoui, A. Iddaoudi, K. Achgar, Thermodynamic modeling of the Ga-Gd binary system, Materials Today: Proceedings 24, 71-75 (2020).
assessment that models this phase; reports values for this phase
doi:10.1007/s00706-019-02420-8 Jinming Liu, Fei Li, Jinping Liu, Xu Zhang, Tahir Ahmad, Tongxiang Liang, Thermodynamic description of the Ce–Ga and Ga–Gd systems, Monatsh Chem 150, 1225-1233 (2019).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2023.102596 Rkia Tamim, Olivier Rapaud, Rémy Boulesteix, Alexandre Maître, Thermodynamic assessment of the Ga–Gd, Ga–Nb and Gd–Nb binary phase diagrams towards the Ga–Gd–Nb system, Calphad 82, 102596 (2023).
assessment that models this phase; reports values for this phase
doi:10.1007/bf02841585 A. Palenzona, S. Clrafici, The Ga-Gd (Gallium-Gadolinium) system, Bulletin of Alloy Phase Diagrams 11, 67-72 (1990).
cited as the source of values for this phase
doi:10.1016/0022-5088(81)90171-5 Joshua Pelleg, L Zevin, The Gd-Ga system: Redetermination of the phase diagram on the gallium-rich side, Journal of the Less Common Metals 77, 197-203 (1981).
cited as the source of values for this phase

GAGD_B33 (Ga–Gd)

Id: phase:ga-gd:gagd-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-aaaabecv and oqmd-19090, space group 63
Stoichiometry: Ga 0.5000, Gd 0.5000
Stability: stable in 3 of 3 calculated diagram(s): 300–1466.07 K, x(Gd) 0.5–0.5
Literature: 18 values (18 accepted) from 2 papers
Interactive: phase registry entry

Names (8): corpus: corpus:phase:ga-gd:gagd-b33
mp: mp:mp-aaaabecv
oqmd: oqmd:oqmd-19090
paper: paper:10.1007/s00706-019-02420-8:GaGd, paper:10.1016/j.matpr.2019.07.598:GaGd
tdb: tdb:GaGd-19Liu.tdb:GAGD_B33, tdb:GaGd-20Ait.tdb:GAGD_B33, tdb:GaGd-23Tam.tdb:GAGD_B33

TDB models of GAGD_B33 (3): PHASE and CONSTITUENT statements as written

GaGd-19Liu.tdb: GAGD_B33, type code %, sha256 c20783412d926e19…

60: PHASE GAGD_B33 % 2 1 1 !
61: CONST GAGD_B33 : GA : GD : !

GaGd-20Ait.tdb: GAGD_B33, type code %, sha256 c6bc03bf1e76ae90…

64: PHASE GAGD_B33 % 2 1 1 !
65: CONST GAGD_B33 : GA : GD : !

GaGd-23Tam.tdb: GAGD_B33, type code %, sha256 87a4fc5f0d2a5c21…

56: PHASE GAGD_B33 % 2 1 1 !
57: CONST GAGD_B33 : GA : GD : !

Example references (6 of 6; assessments first):

doi:10.1007/s00706-019-02420-8 Jinming Liu, Fei Li, Jinping Liu, Xu Zhang, Tahir Ahmad, Tongxiang Liang, Thermodynamic description of the Ce–Ga and Ga–Gd systems, Monatsh Chem 150, 1225-1233 (2019).
assessment that models this phase; reports values for this phase
doi:10.1016/j.matpr.2019.07.598 M. AiT Boukideur, N. Selhaoui, F.Z. chrifi Alaoui, A. Iddaoudi, K. Achgar, Thermodynamic modeling of the Ga-Gd binary system, Materials Today: Proceedings 24, 71-75 (2020).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2023.102596 Rkia Tamim, Olivier Rapaud, Rémy Boulesteix, Alexandre Maître, Thermodynamic assessment of the Ga–Gd, Ga–Nb and Gd–Nb binary phase diagrams towards the Ga–Gd–Nb system, Calphad 82, 102596 (2023).
assessment that models this phase
doi:10.1007/bf02841585 A. Palenzona, S. Clrafici, The Ga-Gd (Gallium-Gadolinium) system, Bulletin of Alloy Phase Diagrams 11, 67-72 (1990).
cited as the source of values for this phase
doi:10.1016/0022-5088(76)90277-0 K.H.J. Buschow, W.W.v.d. Hoogenhof, Magnetic properties and phase relationships of gadolinium-gallium compounds, Journal of the Less Common Metals 45, 309-313 (1976).
cited as the source of values for this phase
doi:10.1016/0022-5088(81)90171-5 Joshua Pelleg, L Zevin, The Gd-Ga system: Redetermination of the phase diagram on the gallium-rich side, Journal of the Less Common Metals 77, 197-203 (1981).
cited as the source of values for this phase

HCP_A3 (Ga–Gd)

Id: phase:ga-gd: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 3 of 3 calculated diagram(s): 300–1583.06 K, x(Gd) 0.99998–1
Literature: 11 values (11 accepted) from 2 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:ga-gd:hcp-a3
paper: paper:10.1007/s00706-019-02420-8:hcp, paper:10.1007/s00706-019-02420-8:hcp(Gd), paper:10.1016/j.matpr.2019.07.598:(αGd)
tdb: tdb:GaGd-19Liu.tdb:HCP_A3, tdb:GaGd-20Ait.tdb:HCP_A3, tdb:GaGd-23Tam.tdb:HCP_A3

TDB models of HCP_A3 (3): PHASE and CONSTITUENT statements as written

GaGd-19Liu.tdb: HCP_A3, type code %, sha256 c20783412d926e19…

40: PHASE HCP_A3 % 2 1 0.5 !
41: CONST HCP_A3 : GA GD% : VA : !

GaGd-20Ait.tdb: HCP_A3, type code %, sha256 c6bc03bf1e76ae90…

44: PHASE HCP_A3 % 2 1 0.5 !
45: CONST HCP_A3 : GA GD% : VA : !

GaGd-23Tam.tdb: HCP_A3, type code %, sha256 87a4fc5f0d2a5c21…

36: PHASE HCP_A3 % 2 1 0.5 !
37: CONST HCP_A3 : GA GD% : VA : !

Example references (5 of 5; assessments first):

doi:10.1007/s00706-019-02420-8 Jinming Liu, Fei Li, Jinping Liu, Xu Zhang, Tahir Ahmad, Tongxiang Liang, Thermodynamic description of the Ce–Ga and Ga–Gd systems, Monatsh Chem 150, 1225-1233 (2019).
assessment that models this phase; reports values for this phase
doi:10.1016/j.matpr.2019.07.598 M. AiT Boukideur, N. Selhaoui, F.Z. chrifi Alaoui, A. Iddaoudi, K. Achgar, Thermodynamic modeling of the Ga-Gd binary system, Materials Today: Proceedings 24, 71-75 (2020).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2023.102596 Rkia Tamim, Olivier Rapaud, Rémy Boulesteix, Alexandre Maître, Thermodynamic assessment of the Ga–Gd, Ga–Nb and Gd–Nb binary phase diagrams towards the Ga–Gd–Nb system, Calphad 82, 102596 (2023).
assessment that models this phase
doi:10.1007/bf02841585 A. Palenzona, S. Clrafici, The Ga-Gd (Gallium-Gadolinium) system, Bulletin of Alloy Phase Diagrams 11, 67-72 (1990).
cited as the source of values for this phase
doi:10.1016/0022-5088(76)90277-0 K.H.J. Buschow, W.W.v.d. Hoogenhof, Magnetic properties and phase relationships of gadolinium-gallium compounds, Journal of the Less Common Metals 45, 309-313 (1976).
cited as the source of values for this phase

LIQUID (Ga–Gd)

Id: phase:ga-gd:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 3 of 3 calculated diagram(s): 302.91–2500 K, x(Gd) 0–1
Literature: 61 values (61 accepted) from 3 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:ga-gd:liquid
paper: paper:10.1007/s00706-019-02420-8:liq., paper:10.1016/j.calphad.2023.102596:liquid, paper:10.1016/j.matpr.2019.07.598:Liq
tdb: tdb:GaGd-19Liu.tdb:LIQUID, tdb:GaGd-20Ait.tdb:LIQUID, tdb:GaGd-23Tam.tdb:LIQUID

TDB models of LIQUID (3): PHASE and CONSTITUENT statements as written

GaGd-19Liu.tdb: LIQUID, type code %, sha256 c20783412d926e19…

25: PHASE LIQUID:L % 1 1 !
26: CONST LIQUID:L : GA GD : !

GaGd-20Ait.tdb: LIQUID, type code %, sha256 c6bc03bf1e76ae90…

29: PHASE LIQUID:L % 1 1 !
30: CONST LIQUID:L : GA GA2GD GD : !

GaGd-23Tam.tdb: LIQUID, type code %, sha256 87a4fc5f0d2a5c21…

21: PHASE LIQUID:L % 1 1 !
22: CONST LIQUID:L : GA GD : !

Example references (6 of 6; assessments first):

doi:10.1007/s00706-019-02420-8 Jinming Liu, Fei Li, Jinping Liu, Xu Zhang, Tahir Ahmad, Tongxiang Liang, Thermodynamic description of the Ce–Ga and Ga–Gd systems, Monatsh Chem 150, 1225-1233 (2019).
assessment that models this phase; reports values for this phase
doi:10.1016/j.matpr.2019.07.598 M. AiT Boukideur, N. Selhaoui, F.Z. chrifi Alaoui, A. Iddaoudi, K. Achgar, Thermodynamic modeling of the Ga-Gd binary system, Materials Today: Proceedings 24, 71-75 (2020).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2023.102596 Rkia Tamim, Olivier Rapaud, Rémy Boulesteix, Alexandre Maître, Thermodynamic assessment of the Ga–Gd, Ga–Nb and Gd–Nb binary phase diagrams towards the Ga–Gd–Nb system, Calphad 82, 102596 (2023).
assessment that models this phase; reports values for this phase
doi:10.1007/bf02841585 A. Palenzona, S. Clrafici, The Ga-Gd (Gallium-Gadolinium) system, Bulletin of Alloy Phase Diagrams 11, 67-72 (1990).
cited as the source of values for this phase
doi:10.1016/0022-5088(76)90277-0 K.H.J. Buschow, W.W.v.d. Hoogenhof, Magnetic properties and phase relationships of gadolinium-gallium compounds, Journal of the Less Common Metals 45, 309-313 (1976).
cited as the source of values for this phase
doi:10.1016/0022-5088(81)90171-5 Joshua Pelleg, L Zevin, The Gd-Ga system: Redetermination of the phase diagram on the gallium-rich side, Journal of the Less Common Metals 77, 197-203 (1981).
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}
}