Sn–Y phases

12 phases (tier A 7, tier B 1, tier C 3, liquid 1); 10 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 · Sn–Y system page · Markdown · field reference

Phases of the Sn–Y system (12)
PhaseStructureBasisStability (calculated)Literature valuesTDB models
DIAMOND_A4
phase:sn-y:a4-diamond
C (diamond) · A4 · cF8 · Fd-3m (227)tier A: standard phase namenot stable in 2 calculated diagram(s)02
BCT_A5
phase:sn-y:a5-bct
beta-Sn · A5 · tI4 · I4_1/amd (141)tier A: standard phase namestable in 2 of 2 calculated diagram(s): 300–505.08 K, x(Y) 0–022
BCC_A2
phase:sn-y:bcc-a2
W · A2 · cI2 · Im-3m (229)tier A: standard phase namestable in 2 of 2 calculated diagram(s): 1632.66–2498.9 K, x(Y) 0.9697–122
FCC_A1
phase:sn-y:fcc-a1
Cu · A1 · cF4 · Fm-3m (225)tier A: standard phase namenot stable in 2 calculated diagram(s)02
HCP_A3
phase:sn-y:hcp-a3
Mg · A3 · hP2 · P6_3/mmc (194)tier A: standard phase namestable in 2 of 2 calculated diagram(s): 300–1786.11 K, x(Y) 0.9826–142
LIQUID
phase:sn-y:liquid
liquidliquidstable in 2 of 2 calculated diagram(s): 503.39–2500 K, x(Y) 0–1242
SN10Y11
phase:sn-y:sn10y11
Ge10Ho11 · tI84 · I4/mmm (139)tier B: DFT-supported (unique MP + OQMD match)stable in 2 of 2 calculated diagram(s): 300–1876.25 K, x(Y) 0.52381–0.5238162
SN2Y_C49
phase:sn-y:sn2y-c49
ZrSi2 · C49 · oC12 · Cmcm (63)tier A: standard phase namestable in 2 of 2 calculated diagram(s): 300–1413 K, x(Y) 0.33333–0.3333362
SN3Y
phase:sn-y:sn3y
GdSn2.75 · oC16 · Amm2 (38)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 2 of 2 calculated diagram(s): 300–704 K, x(Y) 0.25–0.25132
SN3Y5_D88
phase:sn-y:sn3y5-d88
Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193)tier A: standard phase namestable in 2 of 2 calculated diagram(s): 300–2212.68 K, x(Y) 0.61836–0.6250182
SN4Y5
phase:sn-y:sn4y5
Ge4Sm5 · oP36 · Pnma (62)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 2 of 2 calculated diagram(s): 300–2063.27 K, x(Y) 0.55556–0.5555682
SN5Y2
phase:sn-y:sn5y2
Er2Ge5 · oP14 · Pmmn (59)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 2 of 2 calculated diagram(s): 300–798.29 K, x(Y) 0.28571–0.28571112

DIAMOND_A4 (Sn–Y)

Names (3): corpus: corpus:phase:sn-y:a4-diamond
tdb: tdb:SnY-12Tan.tdb:DIAMOND_A4, tdb:SnY-14Lu.tdb:DIAMOND_A4

TDB models of DIAMOND_A4 (2): PHASE and CONSTITUENT statements as written

SnY-12Tan.tdb: DIAMOND_A4, type code %, sha256 290575eb43de507e…

43: PHASE DIAMOND_A4 % 1 1 !
44: CONST DIAMOND_A4 : SN : !

SnY-14Lu.tdb: DIAMOND_A4, type code %, sha256 c4d12f0da7e8d1bd…

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

Example references (2 of 2; assessments first):

BCT_A5 (Sn–Y)

Names (5): corpus: corpus:phase:sn-y:a5-bct, corpus:phase:sn-y:bct-a5
paper: paper:10.1016/s1002-0721(14)60121-6:bct(Sn)
tdb: tdb:SnY-12Tan.tdb:BCT_A5, tdb:SnY-14Lu.tdb:BCT_A5

TDB models of BCT_A5 (2): PHASE and CONSTITUENT statements as written

SnY-12Tan.tdb: BCT_A5, type code %, sha256 290575eb43de507e…

48: PHASE BCT_A5 % 1 1 !
49: CONST BCT_A5 : SN : !

SnY-14Lu.tdb: BCT_A5, type code %, sha256 c4d12f0da7e8d1bd…

46: PHASE BCT_A5 % 1 1 !
47: CONST BCT_A5 : SN : !

Example references (3 of 3; assessments first):

BCC_A2 (Sn–Y)

Names (4): corpus: corpus:phase:sn-y:bcc-a2
paper: paper:10.1016/s1002-0721(14)60121-6:bcc(Y)
tdb: tdb:SnY-12Tan.tdb:BCC_A2, tdb:SnY-14Lu.tdb:BCC_A2

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

SnY-12Tan.tdb: BCC_A2, type code %B, sha256 290575eb43de507e…

33: PHASE BCC_A2 %B 2 1 3 !
34: CONST BCC_A2 : SN Y% : VA : !

SnY-14Lu.tdb: BCC_A2, type code %B, sha256 c4d12f0da7e8d1bd…

31: PHASE BCC_A2 %B 2 1 3 !
32: CONST BCC_A2 : SN Y% : VA : !

Example references (3 of 3; assessments first):

FCC_A1 (Sn–Y)

Names (3): corpus: corpus:phase:sn-y:fcc-a1
tdb: tdb:SnY-12Tan.tdb:FCC_A1, tdb:SnY-14Lu.tdb:FCC_A1

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

SnY-12Tan.tdb: FCC_A1, type code %A, sha256 290575eb43de507e…

28: PHASE FCC_A1 %A 2 1 1 !
29: CONST FCC_A1 : SN Y : VA : !

SnY-14Lu.tdb: FCC_A1, type code %A, sha256 c4d12f0da7e8d1bd…

26: PHASE FCC_A1 %A 2 1 1 !
27: CONST FCC_A1 : SN Y : VA : !

Example references (2 of 2; assessments first):

HCP_A3 (Sn–Y)

Names (4): corpus: corpus:phase:sn-y:hcp-a3
paper: paper:10.1016/s1002-0721(14)60121-6:hcp(Y)
tdb: tdb:SnY-12Tan.tdb:HCP_A3, tdb:SnY-14Lu.tdb:HCP_A3

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

SnY-12Tan.tdb: HCP_A3, type code %A, sha256 290575eb43de507e…

38: PHASE HCP_A3 %A 2 1 0.5 !
39: CONST HCP_A3 : SN Y : VA : !

SnY-14Lu.tdb: HCP_A3, type code %A, sha256 c4d12f0da7e8d1bd…

36: PHASE HCP_A3 %A 2 1 0.5 !
37: CONST HCP_A3 : SN Y : VA : !

Example references (3 of 3; assessments first):

LIQUID (Sn–Y)

Names (5): corpus: corpus:phase:sn-y:liquid
paper: paper:10.1016/j.calphad.2012.09.003:Liquid, paper:10.1016/s1002-0721(14)60121-6:L
tdb: tdb:SnY-12Tan.tdb:LIQUID, tdb:SnY-14Lu.tdb:LIQUID

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

SnY-12Tan.tdb: LIQUID, type code %, sha256 290575eb43de507e…

23: PHASE LIQUID:L % 1 1 !
24: CONST LIQUID:L : SN Y : !

SnY-14Lu.tdb: LIQUID, type code %, sha256 c4d12f0da7e8d1bd…

21: PHASE LIQUID:L % 1 1 !
22: CONST LIQUID:L : SN Y : !

Example references (4 of 4; assessments first):

SN10Y11 (Sn–Y)

Names (7): corpus: corpus:phase:sn-y:sn10y11
mp: mp:mp-aaacqfwn
oqmd: oqmd:oqmd-2053254
paper: paper:10.1016/j.calphad.2012.09.003:Sn10Y11, paper:10.1016/s1002-0721(14)60121-6:Sn10Y11
tdb: tdb:SnY-12Tan.tdb:SN10Y11, tdb:SnY-14Lu.tdb:SN10Y11

TDB models of SN10Y11 (2): PHASE and CONSTITUENT statements as written

SnY-12Tan.tdb: SN10Y11, type code %, sha256 290575eb43de507e…

68: PHASE SN10Y11 % 2 10 11 !
69: CONST SN10Y11 : SN : Y : !

SnY-14Lu.tdb: SN10Y11, type code %, sha256 c4d12f0da7e8d1bd…

66: PHASE SN10Y11 % 2 10 11 !
67: CONST SN10Y11 : SN : Y : !

Example references (4 of 4; assessments first):

SN2Y_C49 (Sn–Y)

Names (7): corpus: corpus:phase:sn-y:sn2y-c49
mp: mp:mp-aaaaatgk
oqmd: oqmd:oqmd-26304
paper: paper:10.1016/j.calphad.2012.09.003:Sn2Y, paper:10.1016/s1002-0721(14)60121-6:Sn2Y
tdb: tdb:SnY-12Tan.tdb:SN2Y_C49, tdb:SnY-14Lu.tdb:SN2Y_C49

TDB models of SN2Y_C49 (2): PHASE and CONSTITUENT statements as written

SnY-12Tan.tdb: SN2Y_C49, type code %, sha256 290575eb43de507e…

63: PHASE SN2Y_C49 % 2 2 1 !
64: CONST SN2Y_C49 : SN : Y : !

SnY-14Lu.tdb: SN2Y_C49, type code %, sha256 c4d12f0da7e8d1bd…

61: PHASE SN2Y_C49 % 2 2 1 !
62: CONST SN2Y_C49 : SN : Y : !

Example references (6 of 6; assessments first):

SN3Y (Sn–Y)

Names (5): corpus: corpus:phase:sn-y:sn3y
paper: paper:10.1016/j.calphad.2012.09.003:Sn3Y, paper:10.1016/s1002-0721(14)60121-6:Sn3Y
tdb: tdb:SnY-12Tan.tdb:SN3Y, tdb:SnY-14Lu.tdb:SN3Y

TDB models of SN3Y (2): PHASE and CONSTITUENT statements as written

SnY-12Tan.tdb: SN3Y, type code %, sha256 290575eb43de507e…

53: PHASE SN3Y % 2 3 1 !
54: CONST SN3Y : SN : Y : !

SnY-14Lu.tdb: SN3Y, type code %, sha256 c4d12f0da7e8d1bd…

51: PHASE SN3Y % 2 3 1 !
52: CONST SN3Y : SN : Y : !

Example references (5 of 5; assessments first):

SN3Y5_D88 (Sn–Y)

Names (5): corpus: corpus:phase:sn-y:sn3y5-d88
paper: paper:10.1016/j.calphad.2012.09.003:Sn3Y5, paper:10.1016/s1002-0721(14)60121-6:Sn3Y5
tdb: tdb:SnY-12Tan.tdb:SN3Y5_D88, tdb:SnY-14Lu.tdb:SN3Y5_D88

TDB models of SN3Y5_D88 (2): PHASE and CONSTITUENT statements as written

SnY-12Tan.tdb: SN3Y5_D88, type code %, sha256 290575eb43de507e…

78: PHASE SN3Y5_D88 % 2 3 5 !
79: CONST SN3Y5_D88 : SN : Y : !

SnY-14Lu.tdb: SN3Y5_D88, type code %, sha256 c4d12f0da7e8d1bd…

76: PHASE SN3Y5_D88 % 3 3 2 3 !
77: CONST SN3Y5_D88 : SN% Y : SN Y% : Y : !

Example references (5 of 5; assessments first):

SN4Y5 (Sn–Y)

Names (5): corpus: corpus:phase:sn-y:sn4y5
paper: paper:10.1016/j.calphad.2012.09.003:Sn4Y5, paper:10.1016/s1002-0721(14)60121-6:Sn4Y5
tdb: tdb:SnY-12Tan.tdb:SN4Y5, tdb:SnY-14Lu.tdb:SN4Y5

TDB models of SN4Y5 (2): PHASE and CONSTITUENT statements as written

SnY-12Tan.tdb: SN4Y5, type code %, sha256 290575eb43de507e…

73: PHASE SN4Y5 % 2 4 5 !
74: CONST SN4Y5 : SN : Y : !

SnY-14Lu.tdb: SN4Y5, type code %, sha256 c4d12f0da7e8d1bd…

71: PHASE SN4Y5 % 2 4 5 !
72: CONST SN4Y5 : SN : Y : !

Example references (4 of 4; assessments first):

SN5Y2 (Sn–Y)

Names (5): corpus: corpus:phase:sn-y:sn5y2
paper: paper:10.1016/j.calphad.2012.09.003:Sn5Y2, paper:10.1016/s1002-0721(14)60121-6:Sn5Y2
tdb: tdb:SnY-12Tan.tdb:SN5Y2, tdb:SnY-14Lu.tdb:SN5Y2

TDB models of SN5Y2 (2): PHASE and CONSTITUENT statements as written

SnY-12Tan.tdb: SN5Y2, type code %, sha256 290575eb43de507e…

58: PHASE SN5Y2 % 2 5 2 !
59: CONST SN5Y2 : SN : Y : !

SnY-14Lu.tdb: SN5Y2, type code %, sha256 c4d12f0da7e8d1bd…

56: PHASE SN5Y2 % 2 5 2 !
57: CONST SN5Y2 : SN : Y : !

Example references (4 of 4; assessments first):