Sc–Sn phases

11 phases (tier A 6, tier C 2, liquid 1, needs_review 2); 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 · Sc–Sn system page · Markdown · field reference

Phases of the Sc–Sn system (11)
PhaseStructureBasisStability (calculated)Literature valuesTDB models
DIAMOND_A4
phase:sc-sn:a4-diamond
C (diamond) · A4 · cF8 · Fd-3m (227)tier A: standard phase namenot stable in 1 calculated diagram(s)01
BCT_A5
phase:sc-sn:a5-bct
beta-Sn · A5 · tI4 · I4_1/amd (141)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–504.71 K, x(Sn) 1–121
BCC_A2
phase:sc-sn:bcc-a2
W · A2 · cI2 · Im-3m (229)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 1443.01–1817.97 K, x(Sn) 0–0.0675101
FCC_A1
phase:sc-sn:fcc-a1
Cu · A1 · cF4 · Fm-3m (225)tier A: standard phase namenot stable in 1 calculated diagram(s)01
HCP_A3
phase:sc-sn:hcp-a3
Mg · A3 · hP2 · P6_3/mmc (194)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–1607.99 K, x(Sn) 0–0.0468321
LIQUID
phase:sc-sn:liquid
liquidliquidstable in 1 of 1 calculated diagram(s): 504.71–2500 K, x(Sn) 0–1161
SC11SN10
phase:sc-sn:sc11sn10
needs_reviewstable in 1 of 1 calculated diagram(s): 300–1225.79 K, x(Sn) 0.47619–0.4761981
SC5SN3_HT
phase:sc-sn:sc5sn3
needs_reviewstable in 1 of 1 calculated diagram(s): 1916.67–2069.24 K, x(Sn) 0.375–0.37551
SC5SN3_D88
phase:sc-sn:sc5sn3-d88
Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–1916.67 K, x(Sn) 0.375–0.37571
SC6SN5
phase:sc-sn:sc6sn5
Si5V6 · oI44 · Ibam (72)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 1 of 1 calculated diagram(s): 300–1643.94 K, x(Sn) 0.45455–0.4545581
SCSN2
phase:sc-sn:scsn2
ScSn2 · tI24 · I4_1/amd (141)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 1 of 1 calculated diagram(s): 300–1146.67 K, x(Sn) 0.66667–0.6666771

DIAMOND_A4 (Sc–Sn)

Names (2): corpus: corpus:phase:sc-sn:a4-diamond
tdb: tdb:ScSn-13Idd.tdb:DIAMOND_A4

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

ScSn-13Idd.tdb: DIAMOND_A4, type code %, sha256 a0ba1a0cb0016f10…

52: PHASE DIAMOND_A4 % 1 1 !
53: CONST DIAMOND_A4 : SN : !

Example references (1 of 1; assessments first):

BCT_A5 (Sc–Sn)

Names (3): corpus: corpus:phase:sc-sn:a5-bct
paper: paper:10.1016/j.calphad.2013.01.006:Sn
tdb: tdb:ScSn-13Idd.tdb:BCT_A5

TDB models of BCT_A5 (1): PHASE and CONSTITUENT statements as written

ScSn-13Idd.tdb: BCT_A5, type code %, sha256 a0ba1a0cb0016f10…

57: PHASE BCT_A5 % 1 1 !
58: CONST BCT_A5 : SN : !

Example references (2 of 2; assessments first):

BCC_A2 (Sc–Sn)

Names (2): corpus: corpus:phase:sc-sn:bcc-a2
tdb: tdb:ScSn-13Idd.tdb:BCC_A2

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

ScSn-13Idd.tdb: BCC_A2, type code %B, sha256 a0ba1a0cb0016f10…

42: PHASE BCC_A2 %B 2 1 3 !
43: CONST BCC_A2 : SC% SN : VA : !

Example references (1 of 1; assessments first):

FCC_A1 (Sc–Sn)

Names (2): corpus: corpus:phase:sc-sn:fcc-a1
tdb: tdb:ScSn-13Idd.tdb:FCC_A1

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

ScSn-13Idd.tdb: FCC_A1, type code %A, sha256 a0ba1a0cb0016f10…

37: PHASE FCC_A1 %A 2 1 1 !
38: CONST FCC_A1 : SC SN : VA : !

Example references (1 of 1; assessments first):

HCP_A3 (Sc–Sn)

Names (3): corpus: corpus:phase:sc-sn:hcp-a3
paper: paper:10.1016/j.calphad.2013.01.006:Sc
tdb: tdb:ScSn-13Idd.tdb:HCP_A3

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

ScSn-13Idd.tdb: HCP_A3, type code %A, sha256 a0ba1a0cb0016f10…

47: PHASE HCP_A3 %A 2 1 0.5 !
48: CONST HCP_A3 : SC% SN : VA : !

Example references (2 of 2; assessments first):

LIQUID (Sc–Sn)

Names (3): corpus: corpus:phase:sc-sn:liquid
paper: paper:10.1016/j.calphad.2013.01.006:Liq
tdb: tdb:ScSn-13Idd.tdb:LIQUID

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

ScSn-13Idd.tdb: LIQUID, type code %, sha256 a0ba1a0cb0016f10…

32: PHASE LIQUID:L % 1 1 !
33: CONST LIQUID:L : SC SN : !

Example references (3 of 3; assessments first):

SC11SN10 (Sc–Sn)

Names (3): corpus: corpus:phase:sc-sn:sc11sn10
paper: paper:10.1016/j.calphad.2013.01.006:Sc11Sn10
tdb: tdb:ScSn-13Idd.tdb:SC11SN10

TDB models of SC11SN10 (1): PHASE and CONSTITUENT statements as written

ScSn-13Idd.tdb: SC11SN10, type code %, sha256 a0ba1a0cb0016f10…

77: PHASE SC11SN10 % 2 11 10 !
78: CONST SC11SN10 : SC : SN : !

Example references (3 of 3; assessments first):

SC5SN3_HT (Sc–Sn)

Names (3): corpus: corpus:phase:sc-sn:sc5sn3
paper: paper:10.1016/j.calphad.2013.01.006:β-Sc5Sn3
tdb: tdb:ScSn-13Idd.tdb:SC5SN3_HT

TDB models of SC5SN3_HT (1): PHASE and CONSTITUENT statements as written

ScSn-13Idd.tdb: SC5SN3_HT, type code %, sha256 a0ba1a0cb0016f10…

67: PHASE SC5SN3_HT % 2 5 3 !
68: CONST SC5SN3_HT : SC : SN : !

Example references (3 of 3; assessments first):

SC5SN3_D88 (Sc–Sn)

Names (3): corpus: corpus:phase:sc-sn:sc5sn3-d88
paper: paper:10.1016/j.calphad.2013.01.006:α-Sc5Sn3
tdb: tdb:ScSn-13Idd.tdb:SC5SN3_D88

TDB models of SC5SN3_D88 (1): PHASE and CONSTITUENT statements as written

ScSn-13Idd.tdb: SC5SN3_D88, type code %, sha256 a0ba1a0cb0016f10…

62: PHASE SC5SN3_D88 % 2 5 3 !
63: CONST SC5SN3_D88 : SC : SN : !

Example references (3 of 3; assessments first):

SC6SN5 (Sc–Sn)

Names (3): corpus: corpus:phase:sc-sn:sc6sn5
paper: paper:10.1016/j.calphad.2013.01.006:Sc6Sn5
tdb: tdb:ScSn-13Idd.tdb:SC6SN5

TDB models of SC6SN5 (1): PHASE and CONSTITUENT statements as written

ScSn-13Idd.tdb: SC6SN5, type code %, sha256 a0ba1a0cb0016f10…

72: PHASE SC6SN5 % 2 6 5 !
73: CONST SC6SN5 : SC : SN : !

Example references (3 of 3; assessments first):

SCSN2 (Sc–Sn)

Names (3): corpus: corpus:phase:sc-sn:scsn2
paper: paper:10.1016/j.calphad.2013.01.006:ScSn2
tdb: tdb:ScSn-13Idd.tdb:SCSN2

TDB models of SCSN2 (1): PHASE and CONSTITUENT statements as written

ScSn-13Idd.tdb: SCSN2, type code %, sha256 a0ba1a0cb0016f10…

82: PHASE SCSN2 % 2 1 2 !
83: CONST SCSN2 : SC : SN : !

Example references (3 of 3; assessments first):