Si–V phases

9 phases (tier A 7, tier C 1, liquid 1); 7 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–V system page · Markdown · field reference

Phases of the Si–V system (9)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
DIAMOND_A4 phase:si-v:a4-diamond	C (diamond) · A4 · cF8 · Fd-3m (227)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 300–1687 K, x(V) 0–0	2	4
BCC_A2 phase:si-v:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 300–2748 K, x(V) 0.901–1	2	4
FCC_A1 phase:si-v:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	not stable in 4 calculated diagram(s)	0	4
HCP_A3 phase:si-v:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 4 calculated diagram(s)	0	4
LIQUID phase:si-v:liquid	liquid	liquid	stable in 4 of 4 calculated diagram(s): 1667.83–4000 K, x(V) 0–1	18	4
SI2V_C40 phase:si-v:si2v-c40	CrSi2 · C40 · hP9 · P6_222 (180)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 300–1956.8 K, x(V) 0.33333–0.33333	8	4
SI3V5_D8M phase:si-v:si3v5-d8m	W5Si3 · D8_m · tI32 · I4/mcm (140)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 300–2283.18 K, x(V) 0.625–0.625	8	4
SI5V6 phase:si-v:si5v6	Si5V6 · oI44 · Ibam (72)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 4 of 4 calculated diagram(s): 730.23–1956.09 K, x(V) 0.54545–0.54545	6	4
SIV3_A15 phase:si-v:siv3-a15	Cr3Si · A15 · cP8 · Pm-3n (223)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 300–2196.66 K, x(V) 0.74761–0.80376	6	4

DIAMOND_A4 (Si–V)

Id: phase:si-v:a4-diamond; status assigned
Structure: C (diamond) · A4 · cF8 · Fd-3m (227); type st:a4-c-diamond-cf8; tier A: standard phase name; confidence high
Stoichiometry: Si 1.0000
Stability: stable in 4 of 4 calculated diagram(s): 300–1687 K, x(V) 0–0
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:si-v:a4-diamond, corpus:phase:si-v:diamond-a4
paper: paper:10.1016/j.calphad.2007.12.005:(Si)
tdb: tdb:SiV-08Zha.tdb:DIAMOND_A4, tdb:SiV-13Bro.tdb:DIAMOND_A4, tdb:SiV-18Luo.tdb:DIAMOND_A4, tdb:SiV-98Ran-LB.tdb:DIAMOND_A4

TDB models of DIAMOND_A4 (4): PHASE and CONSTITUENT statements as written

SiV-08Zha.tdb: DIAMOND_A4, type code %, sha256 d01d1621f6968f15…

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

SiV-13Bro.tdb: DIAMOND_A4, type code %, sha256 cebc0d060764ec48…

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

SiV-18Luo.tdb: DIAMOND_A4, type code %, sha256 0d98c16480352305…

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

SiV-98Ran-LB.tdb: DIAMOND_A4, type code %, sha256 4c72cc6ebad4ef74…

40: PHASE DIAMOND_A4 % 1 1 !
41: CONST DIAMOND_A4 : SI : !

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2007.12.005 Chao Zhang, Yong Du, Wei Xiong, Honghui Xu, Philip Nash, Yifang Ouyang et al., Thermodynamic modeling of the V–Si system supported by key experiments, Calphad 32, 320-325 (2008).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jmst.2018.01.004 Qun Luo, Kang Li, Qian Li, Thermodynamic investigation of phase equilibria in Al–Si–V system, Journal of Materials Science & Technology 34, 1592-1601 (2018).
assessment that models this phase
doi:10.1016/j.jssc.2012.12.003 P. Broz, A.U. Khan, H. Niu, X.-Q. Chen, D. Li, J. Vrestal et al., The system Ta–V–Si: Thermodynamic modeling, Journal of Solid State Chemistry 199, 171-180 (2013).
assessment that models this phase

BCC_A2 (Si–V)

Id: phase:si-v:bcc-a2; status assigned
Structure: W · A2 · cI2 · Im-3m (229); type st:a2-w-ci2; tier A: standard phase name; confidence high
Stability: stable in 4 of 4 calculated diagram(s): 300–2748 K, x(V) 0.901–1
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:si-v:bcc-a2
paper: paper:10.1016/j.calphad.2007.12.005:(V)
tdb: tdb:SiV-08Zha.tdb:BCC_A2, tdb:SiV-13Bro.tdb:BCC_A2, tdb:SiV-18Luo.tdb:BCC_A2, tdb:SiV-98Ran-LB.tdb:BCC_A2

TDB models of BCC_A2 (4): PHASE and CONSTITUENT statements as written

SiV-08Zha.tdb: BCC_A2, type code %B, sha256 d01d1621f6968f15…

36: PHASE BCC_A2 %B 2 1 3 !
37: CONST BCC_A2 : SI V% : VA : !

SiV-13Bro.tdb: BCC_A2, type code %B, sha256 cebc0d060764ec48…

34: PHASE BCC_A2 %B 2 1 3 !
35: CONST BCC_A2 : SI V% : VA : !

SiV-18Luo.tdb: BCC_A2, type code %B, sha256 0d98c16480352305…

33: PHASE BCC_A2 %B 2 1 3 !
34: CONST BCC_A2 : SI V% : VA : !

SiV-98Ran-LB.tdb: BCC_A2, type code %B, sha256 4c72cc6ebad4ef74…

30: PHASE BCC_A2 %B 2 1 3 !
31: CONST BCC_A2 : SI V% : VA : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2007.12.005 Chao Zhang, Yong Du, Wei Xiong, Honghui Xu, Philip Nash, Yifang Ouyang et al., Thermodynamic modeling of the V–Si system supported by key experiments, Calphad 32, 320-325 (2008).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jmst.2018.01.004 Qun Luo, Kang Li, Qian Li, Thermodynamic investigation of phase equilibria in Al–Si–V system, Journal of Materials Science & Technology 34, 1592-1601 (2018).
assessment that models this phase
doi:10.1016/j.jssc.2012.12.003 P. Broz, A.U. Khan, H. Niu, X.-Q. Chen, D. Li, J. Vrestal et al., The system Ta–V–Si: Thermodynamic modeling, Journal of Solid State Chemistry 199, 171-180 (2013).
assessment that models this phase
doi:10.1016/0022-5088(82)90126-6 J.L. Jorda, J. Muller, The V3Si phase: Type of formation and homogeneity range, Journal of the Less Common Metals 84, 39-48 (1982).
cited as the source of values for this phase

FCC_A1 (Si–V)

Id: phase:si-v:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; tier A: standard phase name; confidence high
Stability: not stable in 4 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:si-v:fcc-a1
tdb: tdb:SiV-08Zha.tdb:FCC_A1, tdb:SiV-13Bro.tdb:FCC_A1, tdb:SiV-18Luo.tdb:FCC_A1, tdb:SiV-98Ran-LB.tdb:FCC_A1

TDB models of FCC_A1 (4): PHASE and CONSTITUENT statements as written

SiV-08Zha.tdb: FCC_A1, type code %A, sha256 d01d1621f6968f15…

31: PHASE FCC_A1 %A 2 1 1 !
32: CONST FCC_A1 : SI V : VA : !

SiV-13Bro.tdb: FCC_A1, type code %A, sha256 cebc0d060764ec48…

29: PHASE FCC_A1 %A 2 1 1 !
30: CONST FCC_A1 : SI V : VA : !

SiV-18Luo.tdb: FCC_A1, type code %A, sha256 0d98c16480352305…

28: PHASE FCC_A1 %A 2 1 1 !
29: CONST FCC_A1 : SI V : VA : !

SiV-98Ran-LB.tdb: FCC_A1, type code %A, sha256 4c72cc6ebad4ef74…

25: PHASE FCC_A1 %A 2 1 1 !
26: CONST FCC_A1 : SI V : VA : !

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2007.12.005 Chao Zhang, Yong Du, Wei Xiong, Honghui Xu, Philip Nash, Yifang Ouyang et al., Thermodynamic modeling of the V–Si system supported by key experiments, Calphad 32, 320-325 (2008).
assessment that models this phase
doi:10.1016/j.jmst.2018.01.004 Qun Luo, Kang Li, Qian Li, Thermodynamic investigation of phase equilibria in Al–Si–V system, Journal of Materials Science & Technology 34, 1592-1601 (2018).
assessment that models this phase
doi:10.1016/j.jssc.2012.12.003 P. Broz, A.U. Khan, H. Niu, X.-Q. Chen, D. Li, J. Vrestal et al., The system Ta–V–Si: Thermodynamic modeling, Journal of Solid State Chemistry 199, 171-180 (2013).
assessment that models this phase

HCP_A3 (Si–V)

Id: phase:si-v:hcp-a3; status assigned
Structure: Mg · A3 · hP2 · P6_3/mmc (194); type st:a3-mg-hp2; tier A: standard phase name; confidence high
Stability: not stable in 4 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:si-v:hcp-a3
tdb: tdb:SiV-08Zha.tdb:HCP_A3, tdb:SiV-13Bro.tdb:HCP_A3, tdb:SiV-18Luo.tdb:HCP_A3, tdb:SiV-98Ran-LB.tdb:HCP_A3

TDB models of HCP_A3 (4): PHASE and CONSTITUENT statements as written

SiV-08Zha.tdb: HCP_A3, type code %A, sha256 d01d1621f6968f15…

41: PHASE HCP_A3 %A 2 1 0.5 !
42: CONST HCP_A3 : SI V : VA : !

SiV-13Bro.tdb: HCP_A3, type code %A, sha256 cebc0d060764ec48…

39: PHASE HCP_A3 %A 2 1 0.5 !
40: CONST HCP_A3 : SI V : VA : !

SiV-18Luo.tdb: HCP_A3, type code %A, sha256 0d98c16480352305…

38: PHASE HCP_A3 %A 2 1 0.5 !
39: CONST HCP_A3 : SI V : VA : !

SiV-98Ran-LB.tdb: HCP_A3, type code %A, sha256 4c72cc6ebad4ef74…

35: PHASE HCP_A3 %A 2 1 0.5 !
36: CONST HCP_A3 : SI V : VA : !

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2007.12.005 Chao Zhang, Yong Du, Wei Xiong, Honghui Xu, Philip Nash, Yifang Ouyang et al., Thermodynamic modeling of the V–Si system supported by key experiments, Calphad 32, 320-325 (2008).
assessment that models this phase
doi:10.1016/j.jmst.2018.01.004 Qun Luo, Kang Li, Qian Li, Thermodynamic investigation of phase equilibria in Al–Si–V system, Journal of Materials Science & Technology 34, 1592-1601 (2018).
assessment that models this phase
doi:10.1016/j.jssc.2012.12.003 P. Broz, A.U. Khan, H. Niu, X.-Q. Chen, D. Li, J. Vrestal et al., The system Ta–V–Si: Thermodynamic modeling, Journal of Solid State Chemistry 199, 171-180 (2013).
assessment that models this phase

LIQUID (Si–V)

Id: phase:si-v:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 4 of 4 calculated diagram(s): 1667.83–4000 K, x(V) 0–1
Literature: 18 values (18 accepted) from 1 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:si-v:liquid
paper: paper:10.1016/j.calphad.2007.12.005:L, paper:10.1016/j.calphad.2007.12.005:liquid
tdb: tdb:SiV-08Zha.tdb:LIQUID, tdb:SiV-13Bro.tdb:LIQUID, tdb:SiV-18Luo.tdb:LIQUID, tdb:SiV-98Ran-LB.tdb:LIQUID

TDB models of LIQUID (4): PHASE and CONSTITUENT statements as written

SiV-08Zha.tdb: LIQUID, type code %, sha256 d01d1621f6968f15…

26: PHASE LIQUID:L % 1 1 !
27: CONST LIQUID:L : SI V : !

SiV-13Bro.tdb: LIQUID, type code %, sha256 cebc0d060764ec48…

24: PHASE LIQUID:L % 1 1 !
25: CONST LIQUID:L : SI V : !

SiV-18Luo.tdb: LIQUID, type code %, sha256 0d98c16480352305…

23: PHASE LIQUID:L % 1 1 !
24: CONST LIQUID:L : SI V : !

SiV-98Ran-LB.tdb: LIQUID, type code %, sha256 4c72cc6ebad4ef74…

20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : SI V : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2007.12.005 Chao Zhang, Yong Du, Wei Xiong, Honghui Xu, Philip Nash, Yifang Ouyang et al., Thermodynamic modeling of the V–Si system supported by key experiments, Calphad 32, 320-325 (2008).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jmst.2018.01.004 Qun Luo, Kang Li, Qian Li, Thermodynamic investigation of phase equilibria in Al–Si–V system, Journal of Materials Science & Technology 34, 1592-1601 (2018).
assessment that models this phase
doi:10.1016/j.jssc.2012.12.003 P. Broz, A.U. Khan, H. Niu, X.-Q. Chen, D. Li, J. Vrestal et al., The system Ta–V–Si: Thermodynamic modeling, Journal of Solid State Chemistry 199, 171-180 (2013).
assessment that models this phase
doi:10.1016/0022-5088(82)90126-6 J.L. Jorda, J. Muller, The V3Si phase: Type of formation and homogeneity range, Journal of the Less Common Metals 84, 39-48 (1982).
cited as the source of values for this phase

SI2V_C40 (Si–V)

Id: phase:si-v:si2v-c40; status assigned
Structure: CrSi2 · C40 · hP9 · P6_222 (180); type st:c40-crsi2-hp9; tier A: standard phase name; confidence high
Stoichiometry: Si 0.6667, V 0.3333
Stability: stable in 4 of 4 calculated diagram(s): 300–1956.8 K, x(V) 0.33333–0.33333
Literature: 8 values (8 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:si-v:si2v-c40
paper: paper:10.1016/j.calphad.2007.12.005:VSi2
tdb: tdb:SiV-08Zha.tdb:SI2V_C40, tdb:SiV-13Bro.tdb:SI2V_C40, tdb:SiV-18Luo.tdb:SI2V_C40, tdb:SiV-98Ran-LB.tdb:SI2V_C40

TDB models of SI2V_C40 (4): PHASE and CONSTITUENT statements as written

SiV-08Zha.tdb: SI2V_C40, type code %, sha256 d01d1621f6968f15…

51: PHASE SI2V_C40 % 2 2 1 !
52: CONST SI2V_C40 : SI : V : !

SiV-13Bro.tdb: SI2V_C40, type code %, sha256 cebc0d060764ec48…

49: PHASE SI2V_C40 % 2 2 1 !
50: CONST SI2V_C40 : SI : V : !

SiV-18Luo.tdb: SI2V_C40, type code %, sha256 0d98c16480352305…

48: PHASE SI2V_C40 % 2 2 1 !
49: CONST SI2V_C40 : SI : V : !

SiV-98Ran-LB.tdb: SI2V_C40, type code %, sha256 4c72cc6ebad4ef74…

45: PHASE SI2V_C40 % 2 2 1 !
46: CONST SI2V_C40 : SI : V : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2007.12.005 Chao Zhang, Yong Du, Wei Xiong, Honghui Xu, Philip Nash, Yifang Ouyang et al., Thermodynamic modeling of the V–Si system supported by key experiments, Calphad 32, 320-325 (2008).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jmst.2018.01.004 Qun Luo, Kang Li, Qian Li, Thermodynamic investigation of phase equilibria in Al–Si–V system, Journal of Materials Science & Technology 34, 1592-1601 (2018).
assessment that models this phase
doi:10.1016/j.jssc.2012.12.003 P. Broz, A.U. Khan, H. Niu, X.-Q. Chen, D. Li, J. Vrestal et al., The system Ta–V–Si: Thermodynamic modeling, Journal of Solid State Chemistry 199, 171-180 (2013).
assessment that models this phase
doi:10.1007/s10853-007-1865-6 Chao Zhang, Jiong Wang, Yong Du, Wenqing Zhang, An investigation on the thermodynamic stability of V6Si5, J Mater Sci 42, 7046-7048 (2007).
cited as the source of values for this phase

SI3V5_D8M (Si–V)

Id: phase:si-v:si3v5-d8m; status assigned
Structure: W5Si3 · D8_m · tI32 · I4/mcm (140); type st:d8-m-w5si3-ti32; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaabgjfz and oqmd-31069, space group 140
Stoichiometry: Si 0.3750, V 0.6250
Stability: stable in 4 of 4 calculated diagram(s): 300–2283.18 K, x(V) 0.625–0.625
Literature: 8 values (8 accepted) from 1 papers
Interactive: phase registry entry

Names (8): corpus: corpus:phase:si-v:si3v5-d8m
mp: mp:mp-aaabgjfz
oqmd: oqmd:oqmd-31069
paper: paper:10.1016/j.calphad.2007.12.005:V5Si3
tdb: tdb:SiV-08Zha.tdb:SI3V5_D8M, tdb:SiV-13Bro.tdb:SI3V5_D8M, tdb:SiV-18Luo.tdb:SI3V5_D8M, tdb:SiV-98Ran-LB.tdb:SI3V5_D8M

TDB models of SI3V5_D8M (4): PHASE and CONSTITUENT statements as written

SiV-08Zha.tdb: SI3V5_D8M, type code %, sha256 d01d1621f6968f15…

56: PHASE SI3V5_D8M % 2 3 5 !
57: CONST SI3V5_D8M : SI : V : !

SiV-13Bro.tdb: SI3V5_D8M, type code %, sha256 cebc0d060764ec48…

54: PHASE SI3V5_D8M % 2 3 5 !
55: CONST SI3V5_D8M : SI : V : !

SiV-18Luo.tdb: SI3V5_D8M, type code %, sha256 0d98c16480352305…

53: PHASE SI3V5_D8M % 2 3 5 !
54: CONST SI3V5_D8M : SI : V : !

SiV-98Ran-LB.tdb: SI3V5_D8M, type code %, sha256 4c72cc6ebad4ef74…

50: PHASE SI3V5_D8M % 2 3 5 !
51: CONST SI3V5_D8M : SI : V : !

Example references (5 of 5; assessments first):

doi:10.1016/j.calphad.2007.12.005 Chao Zhang, Yong Du, Wei Xiong, Honghui Xu, Philip Nash, Yifang Ouyang et al., Thermodynamic modeling of the V–Si system supported by key experiments, Calphad 32, 320-325 (2008).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jmst.2018.01.004 Qun Luo, Kang Li, Qian Li, Thermodynamic investigation of phase equilibria in Al–Si–V system, Journal of Materials Science & Technology 34, 1592-1601 (2018).
assessment that models this phase
doi:10.1016/j.jssc.2012.12.003 P. Broz, A.U. Khan, H. Niu, X.-Q. Chen, D. Li, J. Vrestal et al., The system Ta–V–Si: Thermodynamic modeling, Journal of Solid State Chemistry 199, 171-180 (2013).
assessment that models this phase
doi:10.1007/s10853-007-1865-6 Chao Zhang, Jiong Wang, Yong Du, Wenqing Zhang, An investigation on the thermodynamic stability of V6Si5, J Mater Sci 42, 7046-7048 (2007).
cited as the source of values for this phase
doi:10.1016/0022-5088(82)90126-6 J.L. Jorda, J. Muller, The V3Si phase: Type of formation and homogeneity range, Journal of the Less Common Metals 84, 39-48 (1982).
cited as the source of values for this phase

SI5V6 (Si–V)

Id: phase:si-v:si5v6; status assigned
Structure: Si5V6 · oI44 · Ibam (72); type st:si5v6-oi44; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) doi:10.1016/j.calphad.2025.102833
Caveat: not certain from the name or DFT alone (no_on_hull_entry_in_both, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Si 0.4545, V 0.5455
Stability: stable in 4 of 4 calculated diagram(s): 730.23–1956.09 K, x(V) 0.54545–0.54545
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:si-v:si5v6
paper: paper:10.1016/j.calphad.2007.12.005:V6Si5
tdb: tdb:SiV-08Zha.tdb:SI5V6, tdb:SiV-13Bro.tdb:SI5V6, tdb:SiV-18Luo.tdb:SI5V6, tdb:SiV-98Ran-LB.tdb:SI5V6

TDB models of SI5V6 (4): PHASE and CONSTITUENT statements as written

SiV-08Zha.tdb: SI5V6, type code %, sha256 d01d1621f6968f15…

61: PHASE SI5V6 % 2 5 6 !
62: CONST SI5V6 : SI : V : !

SiV-13Bro.tdb: SI5V6, type code %, sha256 cebc0d060764ec48…

59: PHASE SI5V6 % 2 5 6 !
60: CONST SI5V6 : SI : V : !

SiV-18Luo.tdb: SI5V6, type code %, sha256 0d98c16480352305…

58: PHASE SI5V6 % 2 5 6 !
59: CONST SI5V6 : SI : V : !

SiV-98Ran-LB.tdb: SI5V6, type code %, sha256 4c72cc6ebad4ef74…

55: PHASE SI5V6 % 2 5 6 !
56: CONST SI5V6 : SI : V : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2007.12.005 Chao Zhang, Yong Du, Wei Xiong, Honghui Xu, Philip Nash, Yifang Ouyang et al., Thermodynamic modeling of the V–Si system supported by key experiments, Calphad 32, 320-325 (2008).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jmst.2018.01.004 Qun Luo, Kang Li, Qian Li, Thermodynamic investigation of phase equilibria in Al–Si–V system, Journal of Materials Science & Technology 34, 1592-1601 (2018).
assessment that models this phase
doi:10.1016/j.jssc.2012.12.003 P. Broz, A.U. Khan, H. Niu, X.-Q. Chen, D. Li, J. Vrestal et al., The system Ta–V–Si: Thermodynamic modeling, Journal of Solid State Chemistry 199, 171-180 (2013).
assessment that models this phase
doi:10.1007/s10853-007-1865-6 Chao Zhang, Jiong Wang, Yong Du, Wenqing Zhang, An investigation on the thermodynamic stability of V6Si5, J Mater Sci 42, 7046-7048 (2007).
cited as the source of values for this phase

SIV3_A15 (Si–V)

Id: phase:si-v:siv3-a15; status assigned
Structure: Cr3Si · A15 · cP8 · Pm-3n (223); type st:a15-cr3si-cp8; tier A: standard phase name; confidence high
Caveat: partitioned order/disorder model in SiV-08Zha.tdb also describes the disordered state
Caveat: partitioned order/disorder model in SiV-13Bro.tdb also describes the disordered state
Caveat: partitioned order/disorder model in SiV-18Luo.tdb also describes the disordered state
Caveat: partitioned order/disorder model in SiV-98Ran-LB.tdb also describes the disordered state
Stability: stable in 4 of 4 calculated diagram(s): 300–2196.66 K, x(V) 0.74761–0.80376
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:si-v:siv3-a15
paper: paper:10.1016/j.calphad.2007.12.005:V3Si
tdb: tdb:SiV-08Zha.tdb:SIV3_A15, tdb:SiV-13Bro.tdb:SIV3_A15, tdb:SiV-18Luo.tdb:SIV3_A15, tdb:SiV-98Ran-LB.tdb:SIV3_A15

TDB models of SIV3_A15 (4): PHASE and CONSTITUENT statements as written

SiV-08Zha.tdb: SIV3_A15, type code %, sha256 d01d1621f6968f15…

66: PHASE SIV3_A15 % 2 1 3 !
67: CONST SIV3_A15 : SI% V : SI V% : !

SiV-13Bro.tdb: SIV3_A15, type code %, sha256 cebc0d060764ec48…

64: PHASE SIV3_A15 % 2 1 3 !
65: CONST SIV3_A15 : SI% V : SI V% : !

SiV-18Luo.tdb: SIV3_A15, type code %, sha256 0d98c16480352305…

63: PHASE SIV3_A15 % 2 1 3 !
64: CONST SIV3_A15 : SI% V : SI V% : !

SiV-98Ran-LB.tdb: SIV3_A15, type code %, sha256 4c72cc6ebad4ef74…

60: PHASE SIV3_A15 % 2 1 3 !
61: CONST SIV3_A15 : SI% V : SI V% : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2007.12.005 Chao Zhang, Yong Du, Wei Xiong, Honghui Xu, Philip Nash, Yifang Ouyang et al., Thermodynamic modeling of the V–Si system supported by key experiments, Calphad 32, 320-325 (2008).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jmst.2018.01.004 Qun Luo, Kang Li, Qian Li, Thermodynamic investigation of phase equilibria in Al–Si–V system, Journal of Materials Science & Technology 34, 1592-1601 (2018).
assessment that models this phase
doi:10.1016/j.jssc.2012.12.003 P. Broz, A.U. Khan, H. Niu, X.-Q. Chen, D. Li, J. Vrestal et al., The system Ta–V–Si: Thermodynamic modeling, Journal of Solid State Chemistry 199, 171-180 (2013).
assessment that models this phase
doi:10.1016/0022-5088(82)90126-6 J.L. Jorda, J. Muller, The V3Si phase: Type of formation and homogeneity range, Journal of the Less Common Metals 84, 39-48 (1982).
cited as the source of values for this phase

Please cite

R. Arróyave, J. Saal, D. Shin, ORCHID-Registry: phase registry of binary systems (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23735970
R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23736065

Also cite B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, https://doi.org/10.1016/j.calphad.2025.102833 (CC BY 4.0), and the original assessment named in each file; A. Jain et al., The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002, https://doi.org/10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501, https://doi.org/10.1007/s11837-013-0755-4 and S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010, https://doi.org/10.1038/npjcompumats.2015.10 (CC BY 4.0); the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work). Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.

@misc{orchid_phase_registry_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Registry: phase registry of binary systems}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735970},
  url       = {https://doi.org/10.5281/zenodo.23735970},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_data_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID data: umbrella record of the ORCHID datasets}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23736065},
  url       = {https://doi.org/10.5281/zenodo.23736065},
  note      = {Version 1, machine-extracted}
}