Cr–Si phases

12 phases (tier A 7, tier C 4, 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 · Cr–Si system page · Markdown · field reference

Phases of the Cr–Si system (12)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
DIAMOND_A4 phase:cr-si:a4-diamond	C (diamond) · A4 · cF8 · Fd-3m (227)	tier A: standard phase name	stable in 7 of 7 calculated diagram(s): 300–1687 K, x(Si) 1–1	9	7
MSI_B20 phase:cr-si:b20-msi	FeSi · B20 · cP8 · P2_13 (198)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 7 of 7 calculated diagram(s): 300–1740.66 K, x(Si) 0.5–0.5	18	7
BCC_A2 phase:cr-si:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 7 of 7 calculated diagram(s): 300–2183.98 K, x(Si) 0–0.13249	8	7
MSI2_C40 phase:cr-si:c40-msi2	CrSi2 · C40 · hP9 · P6_222 (180)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 2 of 2 calculated diagram(s): 300–1726.59 K, x(Si) 0.66227–0.6787	0	2
CR3SI_A15 phase:cr-si:cr3si-a15	Cr3Si · A15 · cP8 · Pm-3n (223)	tier A: standard phase name	stable in 7 of 7 calculated diagram(s): 300–2066.92 K, x(Si) 0.20616–0.28925	26	7
CR5SI3_D8M phase:cr-si:cr5si3-d8m	W5Si3 · D8_m · tI32 · I4/mcm (140)	tier A: standard phase name	stable in 6 of 6 calculated diagram(s): 300–1970.96 K, x(Si) 0.375–0.40311	27	6
CRSI2_C40 phase:cr-si:crsi2-c40	CrSi2 · C40 · hP9 · P6_222 (180)	tier A: standard phase name	stable in 5 of 5 calculated diagram(s): 300–1751.52 K, x(Si) 0.65565–0.6787	27	5
M5SI3_D88 phase:cr-si:d88-m5si3	Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 2 of 2 calculated diagram(s): 1761.07–1937.13 K, x(Si) 0.36976–0.37485	0	2
M5SI3_D8M phase:cr-si:d8m-m5si3	W5Si3 · D8_m · tI32 · I4/mcm (140)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1933.84 K, x(Si) 0.3712–0.375	0	1
FCC_A1 phase:cr-si:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	not stable in 7 calculated diagram(s)	0	7
HCP_A3 phase:cr-si:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 7 calculated diagram(s)	0	7
LIQUID phase:cr-si:liquid	liquid	liquid	stable in 7 of 7 calculated diagram(s): 1596.05–4000 K, x(Si) 0–1	73	7

DIAMOND_A4 (Cr–Si)

Id: phase:cr-si: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 7 of 7 calculated diagram(s): 300–1687 K, x(Si) 1–1
Literature: 9 values (9 accepted) from 3 papers
Interactive: phase registry entry

Names (12): corpus: corpus:phase:cr-si:a4-diamond, corpus:phase:cr-si:diamond-a4
paper: paper:10.1016/j.calphad.2008.05.005:(Si), paper:10.1361/105497100770340066:(Si), paper:sha256-85fd53a1a176b694:diamond
tdb: tdb:CrSi-00Du.tdb:DIAMOND_A4, tdb:CrSi-09Che.tdb:DIAMOND_A4, tdb:CrSi-17Jac.tdb:DIAMOND_A4, tdb:CrSi-24Ior.tdb:DIAMOND_A4, tdb:CrSi-94Cou-LB.tdb:DIAMOND_A4, tdb:CrSi-95Lee.tdb:DIAMOND_A4, tdb:CrSi-99Lee.tdb:DIAMOND_A4

TDB models of DIAMOND_A4 (7): PHASE and CONSTITUENT statements as written

CrSi-00Du.tdb: DIAMOND_A4, type code %, sha256 fe0ed81391034f69…

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

CrSi-09Che.tdb: DIAMOND_A4, type code %, sha256 0dbac86b6c49e373…

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

CrSi-17Jac.tdb: DIAMOND_A4, type code %, sha256 7f584f9b0c54dd19…

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

CrSi-24Ior.tdb: DIAMOND_A4, type code %, sha256 a0d10c9b7b37a8b7…

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

CrSi-94Cou-LB.tdb: DIAMOND_A4, type code %, sha256 9d9dab51b6eeb64c…

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

CrSi-95Lee.tdb: DIAMOND_A4, type code %, sha256 e32530eafb6d302a…

49: PHASE DIAMOND_A4 % 1 1 !
50: CONST DIAMOND_A4 : SI : !

CrSi-99Lee.tdb: DIAMOND_A4, type code %, sha256 a5a23c0015c48cbb…

48: PHASE DIAMOND_A4 % 1 1 !
49: CONST DIAMOND_A4 : SI : !

Example references (5 of 5; assessments first):

doi:10.1361/105497100770340066 Yong Du, Julius C. Schuster, Experimental reinvestigation of the CrSi-Si partial system and update of the thermodynamic description of the entire Cr-Si system, JPE 21, 281-286 (2000).
assessment that models this phase; reports values for this phase
doi:10.1016/0364-5916(94)90023-X C.A. Coughanowr, I. Ansara, H.L. Lukas, Calphad, 18, 125-40(1994).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.calphad.2008.05.005 Hailin Chen, Yong Du, Julius C. Schuster, On the melting of Cr5Si3 and update of the thermodynamic description of Cr–Si, Calphad 33, 211-214 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2016.12.002 A. Jacob, E. Povoden-Karadeniz, E. Kozeschnik, Calphad, 56, 80-91(2017).
assessment that models this phase
doi:10.1016/j.calphad.2024.102690 Kazushige Ioroi, Ikuo Ohnuma, Xiao Xu, Ryosuke Kainuma, Toshihiro Omori, Thermodynamic assessment of the Cr–Si binary system, Calphad 85, 102690 (2024).
assessment that models this phase

MSI_B20 (Cr–Si)

Id: phase:cr-si:b20-msi; status assigned
Structure: FeSi · B20 · cP8 · P2_13 (198); type st:b20-fesi-cp8; 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 (unrecognised_name_tokens:MSI); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Cr 0.5000, Si 0.5000
Stability: stable in 7 of 7 calculated diagram(s): 300–1740.66 K, x(Si) 0.5–0.5
Literature: 18 values (18 accepted) from 3 papers
Interactive: phase registry entry

Names (12): corpus: corpus:phase:cr-si:b20-msi, corpus:phase:cr-si:msi-b20
paper: paper:10.1016/j.calphad.2008.05.005:CrSi, paper:10.1361/105497100770340066:CrSi, paper:sha256-85fd53a1a176b694:CrSi
tdb: tdb:CrSi-00Du.tdb:MSI_B20, tdb:CrSi-09Che.tdb:MSI_B20, tdb:CrSi-17Jac.tdb:MSI_B20, tdb:CrSi-24Ior.tdb:MSI_B20, tdb:CrSi-94Cou-LB.tdb:MSI_B20, tdb:CrSi-95Lee.tdb:MSI_B20, tdb:CrSi-99Lee.tdb:MSI_B20

TDB models of MSI_B20 (7): PHASE and CONSTITUENT statements as written

CrSi-00Du.tdb: MSI_B20, type code %, sha256 fe0ed81391034f69…

73: PHASE MSI_B20 % 2 1 1 !
74: CONST MSI_B20 : CR : SI : !

CrSi-09Che.tdb: MSI_B20, type code %, sha256 0dbac86b6c49e373…

65: PHASE MSI_B20 % 2 1 1 !
66: CONST MSI_B20 : CR : SI : !

CrSi-17Jac.tdb: MSI_B20, type code %, sha256 7f584f9b0c54dd19…

68: PHASE MSI_B20 % 2 1 1 !
69: CONST MSI_B20 : CR : SI : !

CrSi-24Ior.tdb: MSI_B20, type code %, sha256 a0d10c9b7b37a8b7…

60: PHASE MSI_B20 % 2 1 1 !
61: CONST MSI_B20 : CR : SI : !

CrSi-94Cou-LB.tdb: MSI_B20, type code %, sha256 9d9dab51b6eeb64c…

60: PHASE MSI_B20 % 2 1 1 !
61: CONST MSI_B20 : CR : SI : !

CrSi-95Lee.tdb: MSI_B20, type code %, sha256 e32530eafb6d302a…

69: PHASE MSI_B20 % 2 1 1 !
70: CONST MSI_B20 : CR : SI : !

CrSi-99Lee.tdb: MSI_B20, type code %, sha256 a5a23c0015c48cbb…

68: PHASE MSI_B20 % 2 1 1 !
69: CONST MSI_B20 : CR : SI : !

Example references (5 of 5; assessments first):

doi:10.1361/105497100770340066 Yong Du, Julius C. Schuster, Experimental reinvestigation of the CrSi-Si partial system and update of the thermodynamic description of the entire Cr-Si system, JPE 21, 281-286 (2000).
assessment that models this phase; reports values for this phase
doi:10.1016/0364-5916(94)90023-X C.A. Coughanowr, I. Ansara, H.L. Lukas, Calphad, 18, 125-40(1994).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.calphad.2008.05.005 Hailin Chen, Yong Du, Julius C. Schuster, On the melting of Cr5Si3 and update of the thermodynamic description of Cr–Si, Calphad 33, 211-214 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2016.12.002 A. Jacob, E. Povoden-Karadeniz, E. Kozeschnik, Calphad, 56, 80-91(2017).
assessment that models this phase
doi:10.1016/j.calphad.2024.102690 Kazushige Ioroi, Ikuo Ohnuma, Xiao Xu, Ryosuke Kainuma, Toshihiro Omori, Thermodynamic assessment of the Cr–Si binary system, Calphad 85, 102690 (2024).
assessment that models this phase

BCC_A2 (Cr–Si)

Id: phase:cr-si: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 7 of 7 calculated diagram(s): 300–2183.98 K, x(Si) 0–0.13249
Literature: 8 values (8 accepted) from 3 papers
Interactive: phase registry entry

Names (11): corpus: corpus:phase:cr-si:bcc-a2
paper: paper:10.1016/j.calphad.2008.05.005:(Cr), paper:10.1361/105497100770340066:(Cr), paper:sha256-85fd53a1a176b694:bcc-A2
tdb: tdb:CrSi-00Du.tdb:BCC_A2, tdb:CrSi-09Che.tdb:BCC_A2, tdb:CrSi-17Jac.tdb:BCC_A2, tdb:CrSi-24Ior.tdb:BCC_A2, tdb:CrSi-94Cou-LB.tdb:BCC_A2, tdb:CrSi-95Lee.tdb:BCC_A2, tdb:CrSi-99Lee.tdb:BCC_A2

TDB models of BCC_A2 (7): PHASE and CONSTITUENT statements as written

CrSi-00Du.tdb: BCC_A2, type code %B, sha256 fe0ed81391034f69…

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

CrSi-09Che.tdb: BCC_A2, type code %B, sha256 0dbac86b6c49e373…

32: PHASE BCC_A2 %B 2 1 3 !
33: CONST BCC_A2 : CR% SI : VA : !

CrSi-17Jac.tdb: BCC_A2, type code %B, sha256 7f584f9b0c54dd19…

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

CrSi-24Ior.tdb: BCC_A2, type code %B, sha256 a0d10c9b7b37a8b7…

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

CrSi-94Cou-LB.tdb: BCC_A2, type code %B, sha256 9d9dab51b6eeb64c…

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

CrSi-95Lee.tdb: BCC_A2, type code %B, sha256 e32530eafb6d302a…

39: PHASE BCC_A2 %B 2 1 3 !
40: CONST BCC_A2 : CR% SI : VA : !

CrSi-99Lee.tdb: BCC_A2, type code %B, sha256 a5a23c0015c48cbb…

38: PHASE BCC_A2 %B 2 1 3 !
39: CONST BCC_A2 : CR% SI : VA : !

Example references (5 of 5; assessments first):

doi:10.1361/105497100770340066 Yong Du, Julius C. Schuster, Experimental reinvestigation of the CrSi-Si partial system and update of the thermodynamic description of the entire Cr-Si system, JPE 21, 281-286 (2000).
assessment that models this phase; reports values for this phase
doi:10.1016/0364-5916(94)90023-X C.A. Coughanowr, I. Ansara, H.L. Lukas, Calphad, 18, 125-40(1994).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.calphad.2008.05.005 Hailin Chen, Yong Du, Julius C. Schuster, On the melting of Cr5Si3 and update of the thermodynamic description of Cr–Si, Calphad 33, 211-214 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2016.12.002 A. Jacob, E. Povoden-Karadeniz, E. Kozeschnik, Calphad, 56, 80-91(2017).
assessment that models this phase
doi:10.1016/j.calphad.2024.102690 Kazushige Ioroi, Ikuo Ohnuma, Xiao Xu, Ryosuke Kainuma, Toshihiro Omori, Thermodynamic assessment of the Cr–Si binary system, Calphad 85, 102690 (2024).
assessment that models this phase

MSI2_C40 (Cr–Si)

Id: phase:cr-si:c40-msi2; status assigned
Structure: CrSi2 · C40 · hP9 · P6_222 (180); type st:c40-crsi2-hp9; 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 (unrecognised_name_tokens:MSI2); structure as stated in the SGTE crystallographic table for this phase name and system
Caveat: partitioned order/disorder model in CrSi-17Jac.tdb also describes the disordered state
Stability: stable in 2 of 2 calculated diagram(s): 300–1726.59 K, x(Si) 0.66227–0.6787
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:cr-si:c40-msi2
tdb: tdb:CrSi-17Jac.tdb:MSI2_C40, tdb:CrSi-24Ior.tdb:MSI2_C40

TDB models of MSI2_C40 (2): PHASE and CONSTITUENT statements as written

CrSi-17Jac.tdb: MSI2_C40, type code %, sha256 7f584f9b0c54dd19…

73: PHASE MSI2_C40 % 2 1 2 !
74: CONST MSI2_C40 : CR% SI : CR SI% : !

CrSi-24Ior.tdb: MSI2_C40, type code %, sha256 a0d10c9b7b37a8b7…

65: PHASE MSI2_C40 % 2 1 2 !
66: CONST MSI2_C40 : CR : SI : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2016.12.002 A. Jacob, E. Povoden-Karadeniz, E. Kozeschnik, Calphad, 56, 80-91(2017).
assessment that models this phase
doi:10.1016/j.calphad.2024.102690 Kazushige Ioroi, Ikuo Ohnuma, Xiao Xu, Ryosuke Kainuma, Toshihiro Omori, Thermodynamic assessment of the Cr–Si binary system, Calphad 85, 102690 (2024).
assessment that models this phase

CR3SI_A15 (Cr–Si)

Id: phase:cr-si:cr3si-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 CrSi-00Du.tdb also describes the disordered state
Caveat: partitioned order/disorder model in CrSi-09Che.tdb also describes the disordered state
Caveat: partitioned order/disorder model in CrSi-17Jac.tdb also describes the disordered state
Caveat: partitioned order/disorder model in CrSi-94Cou-LB.tdb also describes the disordered state
Caveat: partitioned order/disorder model in CrSi-95Lee.tdb also describes the disordered state
Caveat: partitioned order/disorder model in CrSi-99Lee.tdb also describes the disordered state
Stability: stable in 7 of 7 calculated diagram(s): 300–2066.92 K, x(Si) 0.20616–0.28925
Literature: 26 values (26 accepted) from 3 papers
Interactive: phase registry entry

Names (11): corpus: corpus:phase:cr-si:cr3si-a15
paper: paper:10.1016/j.calphad.2008.05.005:Cr3Si, paper:10.1361/105497100770340066:Cr3Si, paper:sha256-85fd53a1a176b694:Cr3Si-A15
tdb: tdb:CrSi-00Du.tdb:CR3SI_A15, tdb:CrSi-09Che.tdb:CR3SI_A15, tdb:CrSi-17Jac.tdb:CR3SI_A15, tdb:CrSi-24Ior.tdb:CR3SI_A15, tdb:CrSi-94Cou-LB.tdb:CR3SI_A15, tdb:CrSi-95Lee.tdb:CR3SI_A15, tdb:CrSi-99Lee.tdb:CR3SI_A15

TDB models of CR3SI_A15 (7): PHASE and CONSTITUENT statements as written

CrSi-00Du.tdb: CR3SI_A15, type code %, sha256 fe0ed81391034f69…

50: PHASE CR3SI_A15 % 2 3 1 !
51: CONST CR3SI_A15 : CR% SI : CR SI% : !

CrSi-09Che.tdb: CR3SI_A15, type code %, sha256 0dbac86b6c49e373…

47: PHASE CR3SI_A15 % 2 3 1 !
48: CONST CR3SI_A15 : CR% SI : CR SI% : !

CrSi-17Jac.tdb: CR3SI_A15, type code %, sha256 7f584f9b0c54dd19…

50: PHASE CR3SI_A15 % 2 3 1 !
51: CONST CR3SI_A15 : CR% SI : CR SI% : !

CrSi-24Ior.tdb: CR3SI_A15, type code %, sha256 a0d10c9b7b37a8b7…

50: PHASE CR3SI_A15 % 2 3 1 !
51: CONST CR3SI_A15 : CR : CR SI% : !

CrSi-94Cou-LB.tdb: CR3SI_A15, type code %, sha256 9d9dab51b6eeb64c…

45: PHASE CR3SI_A15 % 2 3 1 !
46: CONST CR3SI_A15 : CR% SI : CR SI% : !

CrSi-95Lee.tdb: CR3SI_A15, type code %, sha256 e32530eafb6d302a…

54: PHASE CR3SI_A15 % 2 3 1 !
55: CONST CR3SI_A15 : CR% SI : CR SI% : !

CrSi-99Lee.tdb: CR3SI_A15, type code %, sha256 a5a23c0015c48cbb…

53: PHASE CR3SI_A15 % 2 3 1 !
54: CONST CR3SI_A15 : CR% SI : CR SI% : !

Example references (5 of 5; assessments first):

doi:10.1361/105497100770340066 Yong Du, Julius C. Schuster, Experimental reinvestigation of the CrSi-Si partial system and update of the thermodynamic description of the entire Cr-Si system, JPE 21, 281-286 (2000).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2008.05.005 Hailin Chen, Yong Du, Julius C. Schuster, On the melting of Cr5Si3 and update of the thermodynamic description of Cr–Si, Calphad 33, 211-214 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/0364-5916(94)90023-X C.A. Coughanowr, I. Ansara, H.L. Lukas, Calphad, 18, 125-40(1994).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.calphad.2016.12.002 A. Jacob, E. Povoden-Karadeniz, E. Kozeschnik, Calphad, 56, 80-91(2017).
assessment that models this phase
doi:10.1016/j.calphad.2024.102690 Kazushige Ioroi, Ikuo Ohnuma, Xiao Xu, Ryosuke Kainuma, Toshihiro Omori, Thermodynamic assessment of the Cr–Si binary system, Calphad 85, 102690 (2024).
assessment that models this phase

CR5SI3_D8M (Cr–Si)

Id: phase:cr-si:cr5si3-d8m; status assigned
Structure: W5Si3 · D8_m · tI32 · I4/mcm (140); type st:d8-m-w5si3-ti32; tier A: standard phase name; confidence high
Stability: stable in 6 of 6 calculated diagram(s): 300–1970.96 K, x(Si) 0.375–0.40311
Literature: 27 values (27 accepted) from 2 papers
Interactive: phase registry entry

Names (11): corpus: corpus:phase:cr-si:cr5si3-d8m
paper: paper:10.1016/j.calphad.2008.05.005:αCr5Si3, paper:10.1016/j.calphad.2008.05.005:βCr5Si3, paper:10.1361/105497100770340066:αCr5Si3, paper:10.1361/105497100770340066:βCr5Si3
tdb: tdb:CrSi-00Du.tdb:CR5SI3_D8M, tdb:CrSi-09Che.tdb:CR5SI3_D8M, tdb:CrSi-24Ior.tdb:CR5SI3_D8M, tdb:CrSi-94Cou-LB.tdb:CR5SI3_D8M, tdb:CrSi-95Lee.tdb:CR5SI3_D8M, tdb:CrSi-99Lee.tdb:CR5SI3_D8M

TDB models of CR5SI3_D8M (6): PHASE and CONSTITUENT statements as written

CrSi-00Du.tdb: CR5SI3_D8M, type code %, sha256 fe0ed81391034f69…

55: PHASE CR5SI3_D8M % 2 5 3 !
56: CONST CR5SI3_D8M : CR : SI : !

CrSi-09Che.tdb: CR5SI3_D8M, type code %, sha256 0dbac86b6c49e373…

52: PHASE CR5SI3_D8M % 2 5 3 !
53: CONST CR5SI3_D8M : CR : SI : !

CrSi-24Ior.tdb: CR5SI3_D8M, type code %, sha256 a0d10c9b7b37a8b7…

55: PHASE CR5SI3_D8M % 2 5 3 !
56: CONST CR5SI3_D8M : CR% SI : SI : !

CrSi-94Cou-LB.tdb: CR5SI3_D8M, type code %, sha256 9d9dab51b6eeb64c…

50: PHASE CR5SI3_D8M % 2 5 3 !
51: CONST CR5SI3_D8M : CR : SI : !

CrSi-95Lee.tdb: CR5SI3_D8M, type code %, sha256 e32530eafb6d302a…

59: PHASE CR5SI3_D8M % 2 5 3 !
60: CONST CR5SI3_D8M : CR : SI : !

CrSi-99Lee.tdb: CR5SI3_D8M, type code %, sha256 a5a23c0015c48cbb…

58: PHASE CR5SI3_D8M % 2 5 3 !
59: CONST CR5SI3_D8M : CR : SI : !

Example references (4 of 4; assessments first):

doi:10.1361/105497100770340066 Yong Du, Julius C. Schuster, Experimental reinvestigation of the CrSi-Si partial system and update of the thermodynamic description of the entire Cr-Si system, JPE 21, 281-286 (2000).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2008.05.005 Hailin Chen, Yong Du, Julius C. Schuster, On the melting of Cr5Si3 and update of the thermodynamic description of Cr–Si, Calphad 33, 211-214 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/0364-5916(94)90023-X C.A. Coughanowr, I. Ansara, H.L. Lukas, Calphad, 18, 125-40(1994).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.calphad.2024.102690 Kazushige Ioroi, Ikuo Ohnuma, Xiao Xu, Ryosuke Kainuma, Toshihiro Omori, Thermodynamic assessment of the Cr–Si binary system, Calphad 85, 102690 (2024).
assessment that models this phase

CRSI2_C40 (Cr–Si)

Id: phase:cr-si:crsi2-c40; status assigned
Structure: CrSi2 · C40 · hP9 · P6_222 (180); type st:c40-crsi2-hp9; tier A: standard phase name; confidence high
Caveat: partitioned order/disorder model in CrSi-00Du.tdb also describes the disordered state
Caveat: partitioned order/disorder model in CrSi-09Che.tdb also describes the disordered state
Caveat: partitioned order/disorder model in CrSi-94Cou-LB.tdb also describes the disordered state
Caveat: partitioned order/disorder model in CrSi-95Lee.tdb also describes the disordered state
Caveat: partitioned order/disorder model in CrSi-99Lee.tdb also describes the disordered state
Stability: stable in 5 of 5 calculated diagram(s): 300–1751.52 K, x(Si) 0.65565–0.6787
Literature: 27 values (27 accepted) from 3 papers
Interactive: phase registry entry

Names (9): corpus: corpus:phase:cr-si:crsi2-c40
paper: paper:10.1016/j.calphad.2008.05.005:CrSi2, paper:10.1361/105497100770340066:CrSi2, paper:sha256-85fd53a1a176b694:CrSi2
tdb: tdb:CrSi-00Du.tdb:CRSI2_C40, tdb:CrSi-09Che.tdb:CRSI2_C40, tdb:CrSi-94Cou-LB.tdb:CRSI2_C40, tdb:CrSi-95Lee.tdb:CRSI2_C40, tdb:CrSi-99Lee.tdb:CRSI2_C40

TDB models of CRSI2_C40 (5): PHASE and CONSTITUENT statements as written

CrSi-00Du.tdb: CRSI2_C40, type code %, sha256 fe0ed81391034f69…

60: PHASE CRSI2_C40 % 2 1 2 !
61: CONST CRSI2_C40 : CR% SI : CR SI% : !

CrSi-09Che.tdb: CRSI2_C40, type code %, sha256 0dbac86b6c49e373…

70: PHASE CRSI2_C40 % 2 1 2 !
71: CONST CRSI2_C40 : CR% SI : CR SI% : !

CrSi-94Cou-LB.tdb: CRSI2_C40, type code %, sha256 9d9dab51b6eeb64c…

55: PHASE CRSI2_C40 % 2 1 2 !
56: CONST CRSI2_C40 : CR% SI : CR SI% : !

CrSi-95Lee.tdb: CRSI2_C40, type code %, sha256 e32530eafb6d302a…

64: PHASE CRSI2_C40 % 2 1 2 !
65: CONST CRSI2_C40 : CR% SI : CR SI% : !

CrSi-99Lee.tdb: CRSI2_C40, type code %, sha256 a5a23c0015c48cbb…

63: PHASE CRSI2_C40 % 2 1 2 !
64: CONST CRSI2_C40 : CR% SI : CR SI% : !

Example references (3 of 3; assessments first):

doi:10.1361/105497100770340066 Yong Du, Julius C. Schuster, Experimental reinvestigation of the CrSi-Si partial system and update of the thermodynamic description of the entire Cr-Si system, JPE 21, 281-286 (2000).
assessment that models this phase; reports values for this phase
doi:10.1016/0364-5916(94)90023-X C.A. Coughanowr, I. Ansara, H.L. Lukas, Calphad, 18, 125-40(1994).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.calphad.2008.05.005 Hailin Chen, Yong Du, Julius C. Schuster, On the melting of Cr5Si3 and update of the thermodynamic description of Cr–Si, Calphad 33, 211-214 (2009).
assessment that models this phase; reports values for this phase

M5SI3_D88 (Cr–Si)

Id: phase:cr-si:d88-m5si3; status assigned
Structure: Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193); type st:d8-8-mn5si3-hp16; 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 (unrecognised_name_tokens:M5SI3); structure as stated in the SGTE crystallographic table for this phase name and system
Caveat: partitioned order/disorder model in CrSi-00Du.tdb also describes the disordered state
Stability: stable in 2 of 2 calculated diagram(s): 1761.07–1937.13 K, x(Si) 0.36976–0.37485
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:cr-si:d88-m5si3
tdb: tdb:CrSi-00Du.tdb:M5SI3_D88, tdb:CrSi-09Che.tdb:M5SI3_D88

TDB models of M5SI3_D88 (2): PHASE and CONSTITUENT statements as written

CrSi-00Du.tdb: M5SI3_D88, type code %, sha256 fe0ed81391034f69…

65: PHASE M5SI3_D88 % 3 2 3 3 !
66: CONST M5SI3_D88 : CR% SI : CR SI% : CR : !

CrSi-09Che.tdb: M5SI3_D88, type code %, sha256 0dbac86b6c49e373…

57: PHASE M5SI3_D88 % 2 5 3 !
58: CONST M5SI3_D88 : CR : CR SI% : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2008.05.005 Hailin Chen, Yong Du, Julius C. Schuster, On the melting of Cr5Si3 and update of the thermodynamic description of Cr–Si, Calphad 33, 211-214 (2009).
assessment that models this phase
doi:10.1361/105497100770340066 Yong Du, Julius C. Schuster, Experimental reinvestigation of the CrSi-Si partial system and update of the thermodynamic description of the entire Cr-Si system, JPE 21, 281-286 (2000).
assessment that models this phase

M5SI3_D8M (Cr–Si)

Id: phase:cr-si:d8m-m5si3; status assigned
Structure: W5Si3 · D8_m · tI32 · I4/mcm (140); type st:d8-m-w5si3-ti32; 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 (unrecognised_name_tokens:M5SI3); structure as stated in the SGTE crystallographic table for this phase name and system
Caveat: partitioned order/disorder model in CrSi-17Jac.tdb also describes the disordered state
Stability: stable in 1 of 1 calculated diagram(s): 300–1933.84 K, x(Si) 0.3712–0.375
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:cr-si:d8m-m5si3
tdb: tdb:CrSi-17Jac.tdb:M5SI3_D8M

TDB models of M5SI3_D8M (1): PHASE and CONSTITUENT statements as written

CrSi-17Jac.tdb: M5SI3_D8M, type code %, sha256 7f584f9b0c54dd19…

55: PHASE M5SI3_D8M % 3 4 1 3 !
56: CONST M5SI3_D8M : CR : CR SI : CR SI : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2016.12.002 A. Jacob, E. Povoden-Karadeniz, E. Kozeschnik, Calphad, 56, 80-91(2017).
assessment that models this phase

FCC_A1 (Cr–Si)

Id: phase:cr-si: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 7 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (8): corpus: corpus:phase:cr-si:fcc-a1
tdb: tdb:CrSi-00Du.tdb:FCC_A1, tdb:CrSi-09Che.tdb:FCC_A1, tdb:CrSi-17Jac.tdb:FCC_A1, tdb:CrSi-24Ior.tdb:FCC_A1, tdb:CrSi-94Cou-LB.tdb:FCC_A1, tdb:CrSi-95Lee.tdb:FCC_A1, tdb:CrSi-99Lee.tdb:FCC_A1

TDB models of FCC_A1 (7): PHASE and CONSTITUENT statements as written

CrSi-00Du.tdb: FCC_A1, type code %A, sha256 fe0ed81391034f69…

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

CrSi-09Che.tdb: FCC_A1, type code %A, sha256 0dbac86b6c49e373…

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

CrSi-17Jac.tdb: FCC_A1, type code %A, sha256 7f584f9b0c54dd19…

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

CrSi-24Ior.tdb: FCC_A1, type code %A, sha256 a0d10c9b7b37a8b7…

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

CrSi-94Cou-LB.tdb: FCC_A1, type code %A, sha256 9d9dab51b6eeb64c…

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

CrSi-95Lee.tdb: FCC_A1, type code %A, sha256 e32530eafb6d302a…

34: PHASE FCC_A1 %A 2 1 1 !
35: CONST FCC_A1 : CR SI : VA : !

CrSi-99Lee.tdb: FCC_A1, type code %A, sha256 a5a23c0015c48cbb…

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

Example references (5 of 5; assessments first):

doi:10.1016/0364-5916(94)90023-X C.A. Coughanowr, I. Ansara, H.L. Lukas, Calphad, 18, 125-40(1994).
assessment that models this phase
doi:10.1016/j.calphad.2008.05.005 Hailin Chen, Yong Du, Julius C. Schuster, On the melting of Cr5Si3 and update of the thermodynamic description of Cr–Si, Calphad 33, 211-214 (2009).
assessment that models this phase
doi:10.1016/j.calphad.2016.12.002 A. Jacob, E. Povoden-Karadeniz, E. Kozeschnik, Calphad, 56, 80-91(2017).
assessment that models this phase
doi:10.1016/j.calphad.2024.102690 Kazushige Ioroi, Ikuo Ohnuma, Xiao Xu, Ryosuke Kainuma, Toshihiro Omori, Thermodynamic assessment of the Cr–Si binary system, Calphad 85, 102690 (2024).
assessment that models this phase
doi:10.1361/105497100770340066 Yong Du, Julius C. Schuster, Experimental reinvestigation of the CrSi-Si partial system and update of the thermodynamic description of the entire Cr-Si system, JPE 21, 281-286 (2000).
assessment that models this phase

HCP_A3 (Cr–Si)

Id: phase:cr-si: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 7 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (8): corpus: corpus:phase:cr-si:hcp-a3
tdb: tdb:CrSi-00Du.tdb:HCP_A3, tdb:CrSi-09Che.tdb:HCP_A3, tdb:CrSi-17Jac.tdb:HCP_A3, tdb:CrSi-24Ior.tdb:HCP_A3, tdb:CrSi-94Cou-LB.tdb:HCP_A3, tdb:CrSi-95Lee.tdb:HCP_A3, tdb:CrSi-99Lee.tdb:HCP_A3

TDB models of HCP_A3 (7): PHASE and CONSTITUENT statements as written

CrSi-00Du.tdb: HCP_A3, type code %, sha256 fe0ed81391034f69…

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

CrSi-09Che.tdb: HCP_A3, type code %, sha256 0dbac86b6c49e373…

37: PHASE HCP_A3 % 2 1 0.5 !
38: CONST HCP_A3 : CR SI : VA : !

CrSi-17Jac.tdb: HCP_A3, type code %, sha256 7f584f9b0c54dd19…

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

CrSi-24Ior.tdb: HCP_A3, type code %, sha256 a0d10c9b7b37a8b7…

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

CrSi-94Cou-LB.tdb: HCP_A3, type code %, sha256 9d9dab51b6eeb64c…

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

CrSi-95Lee.tdb: HCP_A3, type code %, sha256 e32530eafb6d302a…

44: PHASE HCP_A3 % 2 1 0.5 !
45: CONST HCP_A3 : CR SI : VA : !

CrSi-99Lee.tdb: HCP_A3, type code %, sha256 a5a23c0015c48cbb…

43: PHASE HCP_A3 % 2 1 0.5 !
44: CONST HCP_A3 : CR SI : VA : !

Example references (5 of 5; assessments first):

doi:10.1016/0364-5916(94)90023-X C.A. Coughanowr, I. Ansara, H.L. Lukas, Calphad, 18, 125-40(1994).
assessment that models this phase
doi:10.1016/j.calphad.2008.05.005 Hailin Chen, Yong Du, Julius C. Schuster, On the melting of Cr5Si3 and update of the thermodynamic description of Cr–Si, Calphad 33, 211-214 (2009).
assessment that models this phase
doi:10.1016/j.calphad.2016.12.002 A. Jacob, E. Povoden-Karadeniz, E. Kozeschnik, Calphad, 56, 80-91(2017).
assessment that models this phase
doi:10.1016/j.calphad.2024.102690 Kazushige Ioroi, Ikuo Ohnuma, Xiao Xu, Ryosuke Kainuma, Toshihiro Omori, Thermodynamic assessment of the Cr–Si binary system, Calphad 85, 102690 (2024).
assessment that models this phase
doi:10.1361/105497100770340066 Yong Du, Julius C. Schuster, Experimental reinvestigation of the CrSi-Si partial system and update of the thermodynamic description of the entire Cr-Si system, JPE 21, 281-286 (2000).
assessment that models this phase

LIQUID (Cr–Si)

Id: phase:cr-si:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 7 of 7 calculated diagram(s): 1596.05–4000 K, x(Si) 0–1
Literature: 73 values (73 accepted) from 4 papers
Interactive: phase registry entry

Names (12): corpus: corpus:phase:cr-si:liquid
paper: paper:10.1016/0364-5916(94)90023-x:liquid, paper:10.1016/j.calphad.2008.05.005:L, paper:10.1361/105497100770340066:L, paper:sha256-85fd53a1a176b694:L
tdb: tdb:CrSi-00Du.tdb:LIQUID, tdb:CrSi-09Che.tdb:LIQUID, tdb:CrSi-17Jac.tdb:LIQUID, tdb:CrSi-24Ior.tdb:LIQUID, tdb:CrSi-94Cou-LB.tdb:LIQUID, tdb:CrSi-95Lee.tdb:LIQUID, tdb:CrSi-99Lee.tdb:LIQUID

TDB models of LIQUID (7): PHASE and CONSTITUENT statements as written

CrSi-00Du.tdb: LIQUID, type code %, sha256 fe0ed81391034f69…

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

CrSi-09Che.tdb: LIQUID, type code %, sha256 0dbac86b6c49e373…

22: PHASE LIQUID:L % 1 1 !
23: CONST LIQUID:L : CR SI : !

CrSi-17Jac.tdb: LIQUID, type code %, sha256 7f584f9b0c54dd19…

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

CrSi-24Ior.tdb: LIQUID, type code %, sha256 a0d10c9b7b37a8b7…

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

CrSi-94Cou-LB.tdb: LIQUID, type code %, sha256 9d9dab51b6eeb64c…

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

CrSi-95Lee.tdb: LIQUID, type code %, sha256 e32530eafb6d302a…

29: PHASE LIQUID:L % 1 1 !
30: CONST LIQUID:L : CR SI : !

CrSi-99Lee.tdb: LIQUID, type code %, sha256 a5a23c0015c48cbb…

28: PHASE LIQUID:L % 1 1 !
29: CONST LIQUID:L : CR SI : !

Example references (5 of 5; assessments first):

doi:10.1361/105497100770340066 Yong Du, Julius C. Schuster, Experimental reinvestigation of the CrSi-Si partial system and update of the thermodynamic description of the entire Cr-Si system, JPE 21, 281-286 (2000).
assessment that models this phase; reports values for this phase
doi:10.1016/0364-5916(94)90023-X C.A. Coughanowr, I. Ansara, H.L. Lukas, Calphad, 18, 125-40(1994).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.calphad.2008.05.005 Hailin Chen, Yong Du, Julius C. Schuster, On the melting of Cr5Si3 and update of the thermodynamic description of Cr–Si, Calphad 33, 211-214 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2016.12.002 A. Jacob, E. Povoden-Karadeniz, E. Kozeschnik, Calphad, 56, 80-91(2017).
assessment that models this phase
doi:10.1016/j.calphad.2024.102690 Kazushige Ioroi, Ikuo Ohnuma, Xiao Xu, Ryosuke Kainuma, Toshihiro Omori, Thermodynamic assessment of the Cr–Si binary system, Calphad 85, 102690 (2024).
assessment that models 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}
}