Ge–Pt phases

11 phases (tier A 7, 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 · Ge–Pt system page · Markdown · field reference

Phases of the Ge–Pt system (11)
PhaseStructureBasisStability (calculated)Literature valuesTDB models
DIAMOND_A4
phase:ge-pt:a4-diamond
C (diamond) · A4 · cF8 · Fd-3m (227)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–1211.4 K, x(Pt) 0–031
BCC_A2
phase:ge-pt:bcc-a2
W · A2 · cI2 · Im-3m (229)tier A: standard phase namenot stable in 1 calculated diagram(s)01
FCC_A1
phase:ge-pt:fcc-a1
Cu · A1 · cF4 · Fm-3m (225)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–2498.99 K, x(Pt) 0.94883–131
GE2PT_C18
phase:ge-pt:ge2pt-c18
alpha-FeS2 · C18 · oP6 · Pnnm (58)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–1102.39 K, x(Pt) 0.33333–0.3333361
GE2PT3
phase:ge-pt:ge2pt3
Ge2Pt3 · oP40 · Pnma (62)tier B: DFT-supported (unique MP + OQMD match)stable in 1 of 1 calculated diagram(s): 300–1075.23 K, x(Pt) 0.6–0.6111
GE3PT2
phase:ge-pt:ge3pt2
Ge3Pt2 · oP20 · Pnma (62)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 1 of 1 calculated diagram(s): 300–1151.04 K, x(Pt) 0.4–0.491
GEPT_B31
phase:ge-pt:gept-b31
MnP · B31 · oP8 · Pnma (62)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–1340.02 K, x(Pt) 0.5–0.591
GEPT2_C22
phase:ge-pt:gept2-c22
Fe2P · C22 · hP9 · P-62m (189)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–1064.21 K, x(Pt) 0.66667–0.6666731
GEPT3
phase:ge-pt:gept3
GePt3 · mC16 · C2/m (12)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 1 of 1 calculated diagram(s): 300–1222.52 K, x(Pt) 0.75604–0.7790791
HCP_A3
phase:ge-pt:hcp-a3
Mg · A3 · hP2 · P6_3/mmc (194)tier A: standard phase namenot stable in 1 calculated diagram(s)01
LIQUID
phase:ge-pt:liquid
liquidliquidstable in 1 of 1 calculated diagram(s): 1052.95–2500 K, x(Pt) 0–1231

DIAMOND_A4 (Ge–Pt)

Names (4): corpus: corpus:phase:ge-pt:a4-diamond, corpus:phase:ge-pt:diamond-a4
paper: paper:10.1016/j.calphad.2009.05.002:(Ge)
tdb: tdb:GePt-09Wan.tdb:DIAMOND_A4

TDB models of DIAMOND_A4 (1): PHASE and CONSTITUENT statements as written

GePt-09Wan.tdb: DIAMOND_A4, type code %, sha256 f60778f39f108911…

41: PHASE DIAMOND_A4 % 1 1 !
42: CONST DIAMOND_A4 : GE : !

Example references (3 of 3; assessments first):

BCC_A2 (Ge–Pt)

Names (2): corpus: corpus:phase:ge-pt:bcc-a2
tdb: tdb:GePt-09Wan.tdb:BCC_A2

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

GePt-09Wan.tdb: BCC_A2, type code %B, sha256 f60778f39f108911…

31: PHASE BCC_A2 %B 2 1 3 !
32: CONST BCC_A2 : GE PT : VA : !

Example references (1 of 1; assessments first):

FCC_A1 (Ge–Pt)

Names (3): corpus: corpus:phase:ge-pt:fcc-a1
paper: paper:10.1016/j.calphad.2009.05.002:Fcc(Pt)
tdb: tdb:GePt-09Wan.tdb:FCC_A1

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

GePt-09Wan.tdb: FCC_A1, type code %A, sha256 f60778f39f108911…

26: PHASE FCC_A1 %A 2 1 1 !
27: CONST FCC_A1 : GE PT% : VA : !

Example references (3 of 3; assessments first):

GE2PT_C18 (Ge–Pt)

Names (3): corpus: corpus:phase:ge-pt:ge2pt-c18
paper: paper:10.1016/j.calphad.2009.05.002:Ge2Pt
tdb: tdb:GePt-09Wan.tdb:GE2PT_C18

TDB models of GE2PT_C18 (1): PHASE and CONSTITUENT statements as written

GePt-09Wan.tdb: GE2PT_C18, type code %, sha256 f60778f39f108911…

46: PHASE GE2PT_C18 % 2 2 1 !
47: CONST GE2PT_C18 : GE : PT : !

Example references (3 of 3; assessments first):

GE2PT3 (Ge–Pt)

Names (5): corpus: corpus:phase:ge-pt:ge2pt3
mp: mp:mp-aaaabgbp
oqmd: oqmd:oqmd-32367
paper: paper:10.1016/j.calphad.2009.05.002:Ge2Pt3
tdb: tdb:GePt-09Wan.tdb:GE2PT3

TDB models of GE2PT3 (1): PHASE and CONSTITUENT statements as written

GePt-09Wan.tdb: GE2PT3, type code %, sha256 f60778f39f108911…

61: PHASE GE2PT3 % 2 2 3 !
62: CONST GE2PT3 : GE : PT : !

Example references (4 of 4; assessments first):

GE3PT2 (Ge–Pt)

Names (3): corpus: corpus:phase:ge-pt:ge3pt2
paper: paper:10.1016/j.calphad.2009.05.002:Ge3Pt2
tdb: tdb:GePt-09Wan.tdb:GE3PT2

TDB models of GE3PT2 (1): PHASE and CONSTITUENT statements as written

GePt-09Wan.tdb: GE3PT2, type code %, sha256 f60778f39f108911…

51: PHASE GE3PT2 % 2 3 2 !
52: CONST GE3PT2 : GE : PT : !

Example references (4 of 4; assessments first):

GEPT_B31 (Ge–Pt)

Names (5): corpus: corpus:phase:ge-pt:gept-b31
mp: mp:mp-aaabewsu
oqmd: oqmd:oqmd-2258
paper: paper:10.1016/j.calphad.2009.05.002:GePt
tdb: tdb:GePt-09Wan.tdb:GEPT_B31

TDB models of GEPT_B31 (1): PHASE and CONSTITUENT statements as written

GePt-09Wan.tdb: GEPT_B31, type code %, sha256 f60778f39f108911…

56: PHASE GEPT_B31 % 2 1 1 !
57: CONST GEPT_B31 : GE : PT : !

Example references (3 of 3; assessments first):

GEPT2_C22 (Ge–Pt)

Names (3): corpus: corpus:phase:ge-pt:gept2-c22
paper: paper:10.1016/j.calphad.2009.05.002:GePt2
tdb: tdb:GePt-09Wan.tdb:GEPT2_C22

TDB models of GEPT2_C22 (1): PHASE and CONSTITUENT statements as written

GePt-09Wan.tdb: GEPT2_C22, type code %, sha256 f60778f39f108911…

66: PHASE GEPT2_C22 % 2 1 2 !
67: CONST GEPT2_C22 : GE : PT : !

Example references (3 of 3; assessments first):

GEPT3 (Ge–Pt)

Names (3): corpus: corpus:phase:ge-pt:gept3
paper: paper:10.1016/j.calphad.2009.05.002:GePt3
tdb: tdb:GePt-09Wan.tdb:GEPT3

TDB models of GEPT3 (1): PHASE and CONSTITUENT statements as written

GePt-09Wan.tdb: GEPT3, type code %, sha256 f60778f39f108911…

71: PHASE GEPT3 % 2 1 3 !
72: CONST GEPT3 : GE% PT : PT : !

Example references (5 of 5; assessments first):

HCP_A3 (Ge–Pt)

Names (2): corpus: corpus:phase:ge-pt:hcp-a3
tdb: tdb:GePt-09Wan.tdb:HCP_A3

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

GePt-09Wan.tdb: HCP_A3, type code %A, sha256 f60778f39f108911…

36: PHASE HCP_A3 %A 2 1 0.5 !
37: CONST HCP_A3 : GE PT : VA : !

Example references (1 of 1; assessments first):

LIQUID (Ge–Pt)

Names (3): corpus: corpus:phase:ge-pt:liquid
paper: paper:10.1016/j.calphad.2009.05.002:L
tdb: tdb:GePt-09Wan.tdb:LIQUID

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

GePt-09Wan.tdb: LIQUID, type code %, sha256 f60778f39f108911…

21: PHASE LIQUID:L % 1 1 !
22: CONST LIQUID:L : GE PT : !

Example references (3 of 3; assessments first):