Sb–Sm phases

12 phases (tier A 8, tier C 2, liquid 1, needs_review 1); 11 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 · Sb–Sm system page · Markdown · field reference

Phases of the Sb–Sm system (12)
PhaseStructureBasisStability (calculated)Literature valuesTDB models
RHOMBOHEDRAL_A7
phase:sb-sm:a7-rhombohedral
alpha-As · A7 · hR2 · R-3m (166)tier A: standard phase namestable in 2 of 2 calculated diagram(s): 300–910.18 K, x(Sm) 0–032
BCC_A2
phase:sb-sm:bcc-a2
W · A2 · cI2 · Im-3m (229)tier A: standard phase namestable in 2 of 2 calculated diagram(s): 1150.15–2500 K, x(Sm) 0.98723–152
FCC_A1
phase:sb-sm:fcc-a1
Cu · A1 · cF4 · Fm-3m (225)tier A: standard phase namenot stable in 2 calculated diagram(s)02
HCP_A3
phase:sb-sm:hcp-a3
Mg · A3 · hP2 · P6_3/mmc (194)tier A: standard phase namestable in 2 of 2 calculated diagram(s): 1006.99–1340 K, x(Sm) 1–122
LIQUID
phase:sb-sm:liquid
liquidliquidstable in 2 of 2 calculated diagram(s): 875.18–2500 K, x(Sm) 0–1182
RHOMB_C19
phase:sb-sm:rhomb-c19
CdCl2 · C19 · hR3 · R-3m (166)tier A: standard phase namestable in 2 of 2 calculated diagram(s): 300–1191.99 K, x(Sm) 1–102
SB2SM
phase:sb-sm:sb2sm
Sb2Sm · oC24 · Cmce (64)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 2 of 2 calculated diagram(s): 300–1645.56 K, x(Sm) 0.33333–0.3333362
SB3SM4_D73
phase:sb-sm:sb3sm4-d73
Th3P4 · D7_3 · cI28 · I-43d (220)tier A: standard phase namestable in 2 of 2 calculated diagram(s): 300–2062.7 K, x(Sm) 0.57143–0.5714382
SB3SM5_HT
phase:sb-sm:sb3sm5
needs_reviewstable in 1 of 1 calculated diagram(s): 300–1293.33 K, x(Sm) 0.625–0.62551
SB3SM5_D88
phase:sb-sm:sb3sm5-d88
Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193)tier A: standard phase namestable in 2 of 2 calculated diagram(s): 300–2003.33 K, x(Sm) 0.625–0.62572
SBSM_B1
phase:sb-sm:sbsm-b1
NaCl · B1 · cF8 · Fm-3m (225)tier A: standard phase namestable in 2 of 2 calculated diagram(s): 300–2200.92 K, x(Sm) 0.5–0.592
SBSM2
phase:sb-sm:sbsm2
La2Sb · tI12 · I4/mmm (139)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 1 of 1 calculated diagram(s): 300–1600.63 K, x(Sm) 0.66667–0.6666701

RHOMBOHEDRAL_A7 (Sb–Sm)

Names (5): corpus: corpus:phase:sb-sm:a7-rhombohedral, corpus:phase:sb-sm:rhombohedral-a7
paper: paper:10.1016/j.calphad.2014.07.002:(Sb)
tdb: tdb:SbSm-14Liu.tdb:RHOMBOHEDRAL_A7, tdb:SbSm-96Cac.tdb:RHOMBOHEDRAL_A7

TDB models of RHOMBOHEDRAL_A7 (2): PHASE and CONSTITUENT statements as written

SbSm-14Liu.tdb: RHOMBOHEDRAL_A7, type code %, sha256 7316b4d1e5af1aa8…

48: PHASE RHOMBOHEDRAL_A7 % 1 1 !
49: CONST RHOMBOHEDRAL_A7 : SB : !

SbSm-96Cac.tdb: RHOMBOHEDRAL_A7, type code %, sha256 eb704a9b7603a516…

42: PHASE RHOMBOHEDRAL_A7 % 1 1 !
43: CONST RHOMBOHEDRAL_A7 : SB : !

Example references (3 of 3; assessments first):

BCC_A2 (Sb–Sm)

Names (4): corpus: corpus:phase:sb-sm:bcc-a2
paper: paper:10.1016/j.calphad.2014.07.002:(γSm)
tdb: tdb:SbSm-14Liu.tdb:BCC_A2, tdb:SbSm-96Cac.tdb:BCC_A2

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

SbSm-14Liu.tdb: BCC_A2, type code %B, sha256 7316b4d1e5af1aa8…

38: PHASE BCC_A2 %B 2 1 3 !
39: CONST BCC_A2 : SB SM : VA : !

SbSm-96Cac.tdb: BCC_A2, type code %B, sha256 eb704a9b7603a516…

32: PHASE BCC_A2 %B 2 1 3 !
33: CONST BCC_A2 : SB SM : VA : !

Example references (3 of 3; assessments first):

FCC_A1 (Sb–Sm)

Names (3): corpus: corpus:phase:sb-sm:fcc-a1
tdb: tdb:SbSm-14Liu.tdb:FCC_A1, tdb:SbSm-96Cac.tdb:FCC_A1

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

SbSm-14Liu.tdb: FCC_A1, type code %A, sha256 7316b4d1e5af1aa8…

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

SbSm-96Cac.tdb: FCC_A1, type code %A, sha256 eb704a9b7603a516…

27: PHASE FCC_A1 %A 2 1 1 !
28: CONST FCC_A1 : SB : VA : !

Example references (2 of 2; assessments first):

HCP_A3 (Sb–Sm)

Names (4): corpus: corpus:phase:sb-sm:hcp-a3
paper: paper:10.1016/j.calphad.2014.07.002:(βSm)
tdb: tdb:SbSm-14Liu.tdb:HCP_A3, tdb:SbSm-96Cac.tdb:HCP_A3

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

SbSm-14Liu.tdb: HCP_A3, type code %A, sha256 7316b4d1e5af1aa8…

43: PHASE HCP_A3 %A 2 1 0.5 !
44: CONST HCP_A3 : SB SM : VA : !

SbSm-96Cac.tdb: HCP_A3, type code %A, sha256 eb704a9b7603a516…

37: PHASE HCP_A3 %A 2 1 0.5 !
38: CONST HCP_A3 : SB SM : VA : !

Example references (3 of 3; assessments first):

LIQUID (Sb–Sm)

Names (4): corpus: corpus:phase:sb-sm:liquid
paper: paper:10.1016/j.calphad.2014.07.002:L
tdb: tdb:SbSm-14Liu.tdb:LIQUID, tdb:SbSm-96Cac.tdb:LIQUID

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

SbSm-14Liu.tdb: LIQUID, type code %, sha256 7316b4d1e5af1aa8…

28: PHASE LIQUID:L % 1 1 !
29: CONST LIQUID:L : SB SM : !

SbSm-96Cac.tdb: LIQUID, type code %, sha256 eb704a9b7603a516…

22: PHASE LIQUID:L % 1 1 !
23: CONST LIQUID:L : SB SM : !

Example references (3 of 3; assessments first):

RHOMB_C19 (Sb–Sm)

Names (3): corpus: corpus:phase:sb-sm:rhomb-c19
tdb: tdb:SbSm-14Liu.tdb:RHOMB_C19, tdb:SbSm-96Cac.tdb:RHOMB_C19

TDB models of RHOMB_C19 (2): PHASE and CONSTITUENT statements as written

SbSm-14Liu.tdb: RHOMB_C19, type code %, sha256 7316b4d1e5af1aa8…

53: PHASE RHOMB_C19 % 1 1 !
54: CONST RHOMB_C19 : SM : !

SbSm-96Cac.tdb: RHOMB_C19, type code %, sha256 eb704a9b7603a516…

47: PHASE RHOMB_C19 % 1 1 !
48: CONST RHOMB_C19 : SM : !

Example references (2 of 2; assessments first):

SB2SM (Sb–Sm)

Names (4): corpus: corpus:phase:sb-sm:sb2sm
paper: paper:10.1016/j.calphad.2014.07.002:Sb2Sm
tdb: tdb:SbSm-14Liu.tdb:SB2SM, tdb:SbSm-96Cac.tdb:SB2SM

TDB models of SB2SM (2): PHASE and CONSTITUENT statements as written

SbSm-14Liu.tdb: SB2SM, type code %, sha256 7316b4d1e5af1aa8…

58: PHASE SB2SM % 2 2 1 !
59: CONST SB2SM : SB : SM : !

SbSm-96Cac.tdb: SB2SM, type code %, sha256 eb704a9b7603a516…

52: PHASE SB2SM % 2 2 1 !
53: CONST SB2SM : SB : SM : !

Example references (3 of 3; assessments first):

SB3SM4_D73 (Sb–Sm)

Names (4): corpus: corpus:phase:sb-sm:sb3sm4-d73
paper: paper:10.1016/j.calphad.2014.07.002:Sb3Sm4
tdb: tdb:SbSm-14Liu.tdb:SB3SM4_D73, tdb:SbSm-96Cac.tdb:SB3SM4_D73

TDB models of SB3SM4_D73 (2): PHASE and CONSTITUENT statements as written

SbSm-14Liu.tdb: SB3SM4_D73, type code %, sha256 7316b4d1e5af1aa8…

68: PHASE SB3SM4_D73 % 2 3 4 !
69: CONST SB3SM4_D73 : SB : SM : !

SbSm-96Cac.tdb: SB3SM4_D73, type code %, sha256 eb704a9b7603a516…

62: PHASE SB3SM4_D73 % 2 3 4 !
63: CONST SB3SM4_D73 : SB : SM : !

Example references (3 of 3; assessments first):

SB3SM5_HT (Sb–Sm)

Names (4): corpus: corpus:phase:sb-sm:sb3sm5, corpus:phase:sb-sm:sb3sm5-ht
paper: paper:10.1016/j.calphad.2014.07.002:βSb3Sm5
tdb: tdb:SbSm-14Liu.tdb:SB3SM5_HT

TDB models of SB3SM5_HT (1): PHASE and CONSTITUENT statements as written

SbSm-14Liu.tdb: SB3SM5_HT, type code %, sha256 7316b4d1e5af1aa8…

78: PHASE SB3SM5_HT % 2 3 5 !
79: CONST SB3SM5_HT : SB : SM : !

Example references (2 of 2; assessments first):

SB3SM5_D88 (Sb–Sm)

Names (5): corpus: corpus:phase:sb-sm:sb3sm5-d88
paper: paper:10.1016/j.calphad.2014.07.002:Sb3Sm5, paper:10.1016/j.calphad.2014.07.002:αSb3Sm5
tdb: tdb:SbSm-14Liu.tdb:SB3SM5_D88, tdb:SbSm-96Cac.tdb:SB3SM5_D88

TDB models of SB3SM5_D88 (2): PHASE and CONSTITUENT statements as written

SbSm-14Liu.tdb: SB3SM5_D88, type code %, sha256 7316b4d1e5af1aa8…

73: PHASE SB3SM5_D88 % 2 3 5 !
74: CONST SB3SM5_D88 : SB : SM : !

SbSm-96Cac.tdb: SB3SM5_D88, type code %, sha256 eb704a9b7603a516…

67: PHASE SB3SM5_D88 % 2 3 5 !
68: CONST SB3SM5_D88 : SB : SM : !

Example references (3 of 3; assessments first):

SBSM_B1 (Sb–Sm)

Names (4): corpus: corpus:phase:sb-sm:sbsm-b1
paper: paper:10.1016/j.calphad.2014.07.002:SbSm
tdb: tdb:SbSm-14Liu.tdb:SBSM_B1, tdb:SbSm-96Cac.tdb:SBSM_B1

TDB models of SBSM_B1 (2): PHASE and CONSTITUENT statements as written

SbSm-14Liu.tdb: SBSM_B1, type code %, sha256 7316b4d1e5af1aa8…

63: PHASE SBSM_B1 % 2 1 1 !
64: CONST SBSM_B1 : SB : SM : !

SbSm-96Cac.tdb: SBSM_B1, type code %, sha256 eb704a9b7603a516…

57: PHASE SBSM_B1 % 2 1 1 !
58: CONST SBSM_B1 : SB : SM : !

Example references (3 of 3; assessments first):

SBSM2 (Sb–Sm)

Names (2): corpus: corpus:phase:sb-sm:sbsm2
tdb: tdb:SbSm-96Cac.tdb:SBSM2

TDB models of SBSM2 (1): PHASE and CONSTITUENT statements as written

SbSm-96Cac.tdb: SBSM2, type code %, sha256 eb704a9b7603a516…

72: PHASE SBSM2 % 2 1 2 !
73: CONST SBSM2 : SB : SM : !

Example references (1 of 1; assessments first):