Si–Yb phases

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

Phases of the Si–Yb system (11)
PhaseStructureBasisStability (calculated)Literature valuesTDB models
DIAMOND_A4
phase:si-yb:a4-diamond
C (diamond) · A4 · cF8 · Fd-3m (227)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–1689.32 K, x(Yb) 0–071
BCC_A2
phase:si-yb:bcc-a2
W · A2 · cI2 · Im-3m (229)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 1033–2499.95 K, x(Yb) 1–121
FCC_A1
phase:si-yb:fcc-a1
Cu · A1 · cF4 · Fm-3m (225)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–1033 K, x(Yb) 1–101
HCP_A3
phase:si-yb:hcp-a3
Mg · A3 · hP2 · P6_3/mmc (194)tier A: standard phase namenot stable in 1 calculated diagram(s)01
LIQUID
phase:si-yb:liquid
liquidliquidstable in 1 of 1 calculated diagram(s): 1096.2–2500 K, x(Yb) 0–1481
SI11YB8
phase:si-yb:si11yb8
needs_reviewstable in 1 of 1 calculated diagram(s): 300–1257.13 K, x(Yb) 0.42105–0.4210561
SI2YB_C32
phase:si-yb:si2yb-c32
needs_reviewstable in 1 of 1 calculated diagram(s): 1034.45–1676.97 K, x(Yb) 0.36496–0.36496161
SI3YB5_D88
phase:si-yb:si3yb5-d88
Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–1890.67 K, x(Yb) 0.625–0.62541
SI4YB5
phase:si-yb:si4yb5
Ge4Sm5 · oP36 · Pnma (62)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 1 of 1 calculated diagram(s): 300–1939.13 K, x(Yb) 0.55556–0.5555641
SI5YB3
phase:si-yb:si5yb3
Pd5Th3 · hP8 · P-62m (189)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 1 of 1 calculated diagram(s): 300–1241.98 K, x(Yb) 0.375–0.37571
SIYB_B27
phase:si-yb:siyb-b27
FeB · B27 · oP8 · Pnma (62)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–1960.77 K, x(Yb) 0.5–0.5101

DIAMOND_A4 (Si–Yb)

Names (4): corpus: corpus:phase:si-yb:a4-diamond, corpus:phase:si-yb:diamond-a4
paper: paper:10.1016/j.calphad.2005.06.004:Si
tdb: tdb:SiYb-05Bru.tdb:DIAMOND_A4

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

SiYb-05Bru.tdb: DIAMOND_A4, type code %, sha256 69e87e54956cef3f…

45: PHASE DIAMOND_A4 % 1 1 !
46: CONST DIAMOND_A4 : SI : !

Example references (3 of 3; assessments first):

BCC_A2 (Si–Yb)

Names (3): corpus: corpus:phase:si-yb:bcc-a2
paper: paper:10.1016/j.calphad.2005.06.004:Yb(bcc)
tdb: tdb:SiYb-05Bru.tdb:BCC_A2

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

SiYb-05Bru.tdb: BCC_A2, type code %B, sha256 69e87e54956cef3f…

35: PHASE BCC_A2 %B 2 1 3 !
36: CONST BCC_A2 : SI YB% : VA : !

Example references (1 of 1; assessments first):

FCC_A1 (Si–Yb)

Names (2): corpus: corpus:phase:si-yb:fcc-a1
tdb: tdb:SiYb-05Bru.tdb:FCC_A1

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

SiYb-05Bru.tdb: FCC_A1, type code %A, sha256 69e87e54956cef3f…

30: PHASE FCC_A1 %A 2 1 1 !
31: CONST FCC_A1 : SI YB% : VA : !

Example references (1 of 1; assessments first):

HCP_A3 (Si–Yb)

Names (2): corpus: corpus:phase:si-yb:hcp-a3
tdb: tdb:SiYb-05Bru.tdb:HCP_A3

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

SiYb-05Bru.tdb: HCP_A3, type code %A, sha256 69e87e54956cef3f…

40: PHASE HCP_A3 %A 2 1 0.5 !
41: CONST HCP_A3 :  SI YB : VA: !

Example references (1 of 1; assessments first):

LIQUID (Si–Yb)

Names (5): corpus: corpus:phase:si-yb:liquid
paper: paper:10.1016/j.calphad.2005.06.004:L, paper:10.1016/j.calphad.2005.06.004:liquid, paper:10.1016/j.calphad.2005.06.004:liquid solution
tdb: tdb:SiYb-05Bru.tdb:LIQUID

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

SiYb-05Bru.tdb: LIQUID, type code %, sha256 69e87e54956cef3f…

25: PHASE LIQUID:L % 1 1 !
26: CONST LIQUID:L : SI YB : !

Example references (3 of 3; assessments first):

SI11YB8 (Si–Yb)

Names (3): corpus: corpus:phase:si-yb:si11yb8
paper: paper:10.1016/j.calphad.2005.06.004:Yb8Si11
tdb: tdb:SiYb-05Bru.tdb:SI11YB8

TDB models of SI11YB8 (1): PHASE and CONSTITUENT statements as written

SiYb-05Bru.tdb: SI11YB8, type code %, sha256 69e87e54956cef3f…

65: PHASE SI11YB8 % 2 11 8 !
66: CONST SI11YB8 : SI : YB : !

Example references (2 of 2; assessments first):

SI2YB_C32 (Si–Yb)

Names (3): corpus: corpus:phase:si-yb:si2yb-c32
paper: paper:10.1016/j.calphad.2005.06.004:YbSi1.74
tdb: tdb:SiYb-05Bru.tdb:SI2YB_C32

TDB models of SI2YB_C32 (1): PHASE and CONSTITUENT statements as written

SiYb-05Bru.tdb: SI2YB_C32, type code %, sha256 69e87e54956cef3f…

75: PHASE SI2YB_C32 % 2 1.74 1 !
76: CONST SI2YB_C32 : SI : YB : !

Example references (3 of 3; assessments first):

SI3YB5_D88 (Si–Yb)

Names (3): corpus: corpus:phase:si-yb:si3yb5-d88
paper: paper:10.1016/j.calphad.2005.06.004:Yb5Si3
tdb: tdb:SiYb-05Bru.tdb:SI3YB5_D88

TDB models of SI3YB5_D88 (1): PHASE and CONSTITUENT statements as written

SiYb-05Bru.tdb: SI3YB5_D88, type code %, sha256 69e87e54956cef3f…

50: PHASE SI3YB5_D88 % 2 3 5 !
51: CONST SI3YB5_D88 : SI : YB : !

Example references (1 of 1; assessments first):

SI4YB5 (Si–Yb)

Names (3): corpus: corpus:phase:si-yb:si4yb5
paper: paper:10.1016/j.calphad.2005.06.004:Yb5Si4
tdb: tdb:SiYb-05Bru.tdb:SI4YB5

TDB models of SI4YB5 (1): PHASE and CONSTITUENT statements as written

SiYb-05Bru.tdb: SI4YB5, type code %, sha256 69e87e54956cef3f…

55: PHASE SI4YB5 % 2 4 5 !
56: CONST SI4YB5 : SI : YB : !

Example references (1 of 1; assessments first):

SI5YB3 (Si–Yb)

Names (3): corpus: corpus:phase:si-yb:si5yb3
paper: paper:10.1016/j.calphad.2005.06.004:Yb3Si5
tdb: tdb:SiYb-05Bru.tdb:SI5YB3

TDB models of SI5YB3 (1): PHASE and CONSTITUENT statements as written

SiYb-05Bru.tdb: SI5YB3, type code %, sha256 69e87e54956cef3f…

70: PHASE SI5YB3 % 2 5 3 !
71: CONST SI5YB3 : SI : YB : !

Example references (3 of 3; assessments first):

SIYB_B27 (Si–Yb)

Names (3): corpus: corpus:phase:si-yb:siyb-b27
paper: paper:10.1016/j.calphad.2005.06.004:YbSi
tdb: tdb:SiYb-05Bru.tdb:SIYB_B27

TDB models of SIYB_B27 (1): PHASE and CONSTITUENT statements as written

SiYb-05Bru.tdb: SIYB_B27, type code %, sha256 69e87e54956cef3f…

60: PHASE SIYB_B27 % 2 1 1 !
61: CONST SIYB_B27 : SI : YB : !

Example references (3 of 3; assessments first):