Cr–Si system

111 accepted literature values from 5 paper(s) (experimental 40, model 52, unspecified 19); 7 calculated phase diagram(s). 5 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (12) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	40
model	52
unspecified	19

Accepted values by property group
Property group	Values
invariant reaction	52
phase transition	24
formation	29
crystal structure	6

Calculated phase diagrams

Binary phase diagrams calculated with pycalphad 0.11.2 from the SGTE binary collection (Hallstedt 2025, CC BY 4.0). Evidence class: model.

Assessments with a calculated phase diagram
TDB file	Assessment	SHA-256	Links
CrSi-00Du.tdb	Y. Du, J.C. Schuster, J. Phase Equilib., 21, 281-86(2000). doi:10.1361/105497100770340066	`fe0ed81391034f693aa1bd734301b9e76527d6263cfc3087bf4f819bec9e385c`	viewer · TDB · JSON
CrSi-09Che.tdb	H. Chen, Y. Du, J.C. Schuster, Calphad 33, 211-14(2009). doi:10.1016/j.calphad.2008.05.005	`0dbac86b6c49e373ef8560311d8e352757f68be5ee36b8d502c8a37adcbab8fd`	viewer · TDB · JSON
CrSi-17Jac.tdb	A. Jacob, E. Povoden-Karadeniz, E. Kozeschnik, Calphad, 56, 80-91(2017). doi:10.1016/j.calphad.2016.12.002	`7f584f9b0c54dd19687d62e32adae35d6320faff47121a14e625fd739d551e0c`	viewer · TDB · JSON
CrSi-24Ior.tdb	K. Ioroi, I. Ohnuma, X. Xu, R. Kainuma, T. Onori, Calphad, 85, 102690(2024). doi:10.1016/j.calphad.2024.102690	`a0d10c9b7b37a8b7d59035037608ec2a1b992d4ea9c2fc3cf8f0891472c51b5d`	viewer · TDB · JSON
CrSi-94Cou-LB.tdb	C.A. Coughanowr, I. Ansara, H.L. Lukas, Calphad, 18, 125-40(1994). doi:10.1016/0364-5916(94)90023-X	`9d9dab51b6eeb64c99fbcb78621bc2e90184f54a970a84d6c9cf5763ae77f116`	viewer · TDB · JSON
CrSi-95Lee.tdb	B.-J. Lee, unpublished, 1993-95.	`e32530eafb6d302a2aa1e06af486817e4d3b09ae87044bc35eccecd8080022e3`	viewer · TDB · JSON
CrSi-99Lee.tdb	B.-J. Lee, unpublished, 1999.	`a5a23c0015c48cbb788f782aad8727a34eb81d92a76e7aa59edb0a4dc3528189`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
CrSi-00Du.tdb	1974.26	BCC_A2 (x(Si) 0.13027) + LIQUID (x(Si) 0.16409) + CR3SI_A15 (x(Si) 0.23336)
CrSi-00Du.tdb	1937.13	CR3SI_A15 (x(Si) 0.25261) + LIQUID (x(Si) 0.35485) + M5SI3_D88 (x(Si) 0.36976)
CrSi-00Du.tdb	1791.74	M5SI3_D88 (x(Si) 0.37485) + CR5SI3_D8M (x(Si) 0.375) + LIQUID (x(Si) 0.50908)
CrSi-00Du.tdb	1761.07	CR3SI_A15 (x(Si) 0.25132) + M5SI3_D88 (x(Si) 0.37193) + CR5SI3_D8M (x(Si) 0.375)
CrSi-00Du.tdb	1697.24	CR5SI3_D8M (x(Si) 0.375) + MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.55335)
CrSi-00Du.tdb	1697.23	CR5SI3_D8M (x(Si) 0.375) + MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.55391)
CrSi-00Du.tdb	1680.7	MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.57781) + CRSI2_C40 (x(Si) 0.66285)
CrSi-00Du.tdb	1680.7	MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.57773) + CRSI2_C40 (x(Si) 0.66284)
CrSi-00Du.tdb	1600.68	CRSI2_C40 (x(Si) 0.67863) + LIQUID (x(Si) 0.85399) + DIAMOND_A4 (x(Si) 1)
CrSi-09Che.tdb	1971.67	BCC_A2 (x(Si) 0.13249) + LIQUID (x(Si) 0.17017) + CR3SI_A15 (x(Si) 0.2449)
CrSi-09Che.tdb	1932.22	CR3SI_A15 (x(Si) 0.28925) + M5SI3_D88 (x(Si) 0.37089) + LIQUID (x(Si) 0.38256)
CrSi-09Che.tdb	1781.97	M5SI3_D88 (x(Si) 0.3747) + CR5SI3_D8M (x(Si) 0.375) + LIQUID (x(Si) 0.50375)
CrSi-09Che.tdb	1774.21	CR3SI_A15 (x(Si) 0.28565) + M5SI3_D88 (x(Si) 0.3728) + CR5SI3_D8M (x(Si) 0.375)
CrSi-09Che.tdb	1697.93	CR5SI3_D8M (x(Si) 0.375) + MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.546)
CrSi-09Che.tdb	1697.92	CR5SI3_D8M (x(Si) 0.375) + MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.54659)
CrSi-09Che.tdb	1680.06	MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.57543) + CRSI2_C40 (x(Si) 0.66227)
CrSi-09Che.tdb	1680.06	MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.57533) + CRSI2_C40 (x(Si) 0.66227)
CrSi-09Che.tdb	1596.05	CRSI2_C40 (x(Si) 0.6787) + LIQUID (x(Si) 0.85362) + DIAMOND_A4 (x(Si) 1)
CrSi-17Jac.tdb	1971.67	BCC_A2 (x(Si) 0.13249) + LIQUID (x(Si) 0.17017) + CR3SI_A15 (x(Si) 0.2449)
CrSi-17Jac.tdb	1933.84	CR3SI_A15 (x(Si) 0.28898) + M5SI3_D8M (x(Si) 0.3712) + LIQUID (x(Si) 0.38164)
CrSi-17Jac.tdb	1692.57	M5SI3_D8M (x(Si) 0.37494) + MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.55668)
CrSi-17Jac.tdb	1680.06	MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.57543) + MSI2_C40 (x(Si) 0.66227)
CrSi-17Jac.tdb	1680.06	MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.57533) + MSI2_C40 (x(Si) 0.66227)
CrSi-17Jac.tdb	1596.05	MSI2_C40 (x(Si) 0.6787) + LIQUID (x(Si) 0.85362) + DIAMOND_A4 (x(Si) 1)
CrSi-24Ior.tdb	1993.43	BCC_A2 (x(Si) 0.10596) + LIQUID (x(Si) 0.14886) + CR3SI_A15 (x(Si) 0.20616)
CrSi-24Ior.tdb	1943.43	CR3SI_A15 (x(Si) 0.24848) + LIQUID (x(Si) 0.34999) + CR5SI3_D8M (x(Si) 0.38112)
CrSi-24Ior.tdb	1711.52	CR5SI3_D8M (x(Si) 0.40259) + MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.54743)
CrSi-24Ior.tdb	1685.15	MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.57814) + MSI2_C40 (x(Si) 0.66667)
CrSi-24Ior.tdb	1685.15	MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.5779) + MSI2_C40 (x(Si) 0.66667)
CrSi-24Ior.tdb	1608.57	MSI2_C40 (x(Si) 0.66667) + LIQUID (x(Si) 0.84527) + DIAMOND_A4 (x(Si) 1)
CrSi-24Ior.tdb	1608.57	MSI2_C40 (x(Si) 0.66667) + LIQUID (x(Si) 0.84532) + DIAMOND_A4 (x(Si) 1)
CrSi-94Cou-LB.tdb	1957.46	BCC_A2 (x(Si) 0.11494) + LIQUID (x(Si) 0.15386) + CR3SI_A15 (x(Si) 0.2334)
CrSi-94Cou-LB.tdb	1949.99	CR3SI_A15 (x(Si) 0.27166) + LIQUID (x(Si) 0.36363) + CR5SI3_D8M (x(Si) 0.375)
CrSi-94Cou-LB.tdb	1718.54	CR5SI3_D8M (x(Si) 0.375) + MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.55984)
CrSi-94Cou-LB.tdb	1718.54	CR5SI3_D8M (x(Si) 0.375) + MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.55953)
CrSi-94Cou-LB.tdb	1708.85	MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.57398) + CRSI2_C40 (x(Si) 0.65571)
CrSi-94Cou-LB.tdb	1708.85	MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.57356) + CRSI2_C40 (x(Si) 0.65565)
CrSi-94Cou-LB.tdb	1606.66	CRSI2_C40 (x(Si) 0.67259) + LIQUID (x(Si) 0.86441) + DIAMOND_A4 (x(Si) 1)
CrSi-95Lee.tdb	1971.34	BCC_A2 (x(Si) 0.0925) + LIQUID (x(Si) 0.15088) + CR3SI_A15 (x(Si) 0.21427)
CrSi-95Lee.tdb	1958.19	CR3SI_A15 (x(Si) 0.25092) + LIQUID (x(Si) 0.33842) + CR5SI3_D8M (x(Si) 0.375)
CrSi-95Lee.tdb	1740.66	CR5SI3_D8M (x(Si) 0.375) + MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.53181)
CrSi-95Lee.tdb	1740.65	CR5SI3_D8M (x(Si) 0.375) + MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.53222)
CrSi-95Lee.tdb	1710.21	MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.57434) + CRSI2_C40 (x(Si) 0.66233)
CrSi-95Lee.tdb	1710.21	MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.57401) + CRSI2_C40 (x(Si) 0.66231)
CrSi-95Lee.tdb	1629.9	CRSI2_C40 (x(Si) 0.67195) + LIQUID (x(Si) 0.86562) + DIAMOND_A4 (x(Si) 1)
CrSi-99Lee.tdb	1977.87	BCC_A2 (x(Si) 0.09068) + LIQUID (x(Si) 0.14815) + CR3SI_A15 (x(Si) 0.22128)
CrSi-99Lee.tdb	1910.13	CR3SI_A15 (x(Si) 0.25291) + LIQUID (x(Si) 0.36999) + CR5SI3_D8M (x(Si) 0.375)
CrSi-99Lee.tdb	1665.16	CR5SI3_D8M (x(Si) 0.375) + MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.54281)
CrSi-99Lee.tdb	1665.15	CR5SI3_D8M (x(Si) 0.375) + MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.5432)
CrSi-99Lee.tdb	1656.02	MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.55732) + CRSI2_C40 (x(Si) 0.65813)
CrSi-99Lee.tdb	1656.02	MSI_B20 (x(Si) 0.5) + LIQUID (x(Si) 0.55723) + CRSI2_C40 (x(Si) 0.65812)
CrSi-99Lee.tdb	1615.99	CRSI2_C40 (x(Si) 0.67281) + LIQUID (x(Si) 0.84259) + DIAMOND_A4 (x(Si) 1)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull CrSi-00Du · CALPHAD hull CrSi-09Che · CALPHAD hull CrSi-17Jac · CALPHAD hull CrSi-94Cou-LB · CALPHAD hull CrSi-95Lee · CALPHAD hull CrSi-99Lee

Invariant reactions (literature)

Invariant reactions reported in the literature for the Cr–Si system (52)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
2049.5	congruent melting: Cr3Si-A15 -> Liquid	Cr3Si-A15: Si 0.025; L: Si 0.025	model	[1] (ed.) 1998	Table I, p. 167, row 6 report
1982.15	L ↔ (Cr) + Cr3Si	Cr3Si: Si 0.25	experimental	[2] Du 2000 cites Chang 1968	Table 1, p. 2, row 1 report
1982.15	eutectic: L -> Cr3Si + (Cr)	Cr3Si: Si 0.25	unspecified	[2] Du 2000	Table 2, p. 2, row 16 report
1978.15	eutectic: L -> Cr3Si + (Cr)	Cr3Si: Si 0.25	experimental	[2] Du 2000 cites Chang 1968	Table 2, p. 2, row 17 report
1974.15	L ↔ (Cr) + Cr3Si	Cr3Si: Si 0.25	unspecified	[2] Du 2000	Table 1, p. 2, row 3 report
1973.15	L ↔ (Cr) + Cr3Si	Cr3Si: Si 0.25	experimental	[2] Du 2000 cites Svechnikov 1964	Table 1, p. 2, row 2 report
1971.67	Liquid = (Cr) + Cr3Si	L: Si 0.1702; (Cr): Si 0.1325; Cr3Si: Si 0.2449	model	[3] Chen 2009	Table 2, p. 3, row 1 report
1957.4	eutectic: Liquid -> bcc-A2 + Cr3Si-A15	L: Si 0.154; bcc-A2: Si 0.115; Cr3Si-A15: Si 0.233	model	[1] (ed.) 1998	Table I, p. 167, row 1 report
1957.15	L ↔ (Cr) + Cr3Si	Cr3Si: Si 0.25	model	[2] Du 2000 cites Coughanowr 1994 doi	Table 1, p. 2, row 4 report
1953.15	L ↔ Cr3Si + βCr5Si3	Cr3Si: Si 0.25; βCr5Si3: Si 0.375	experimental	[2] Du 2000 cites Svechnikov 1964	Table 1, p. 2, row 10 report
1951	congruent melting: Cr5Si3 -> Liquid	Cr5Si3: Si 0.375; L: Si 0.375	model	[1] (ed.) 1998	Table I, p. 167, row 7 report
1950.15	L ↔ Cr3Si + βCr5Si3	Cr3Si: Si 0.25; βCr5Si3: Si 0.375	model	[2] Du 2000 cites Coughanowr 1994 doi	Table 1, p. 2, row 12 report
1950	eutectic: Liquid -> Cr3Si-A15 + Cr5Si3	L: Si 0.364; Cr3Si-A15: Si 0.272; Cr5Si3: Si 0.375	model	[1] (ed.) 1998	Table I, p. 167, row 2 report
1937.15	L ↔ Cr3Si + βCr5Si3	Cr3Si: Si 0.25; βCr5Si3: Si 0.375	experimental	[2] Du 2000 cites Chang 1968	Table 1, p. 2, row 9 report
1937.15	L ↔ Cr3Si + βCr5Si3	Cr3Si: Si 0.25; βCr5Si3: Si 0.375	unspecified	[2] Du 2000	Table 1, p. 2, row 11 report
1937.15	eutectic: L -> βCr5Si3 + Cr3Si	βCr5Si3: Si 0.375; Cr3Si: Si 0.25	unspecified	[2] Du 2000	Table 2, p. 2, row 12 report
1933.15	eutectic: L -> βCr5Si3 + Cr3Si	βCr5Si3: Si 0.375; Cr3Si: Si 0.25	experimental	[2] Du 2000 cites Chang 1968	Table 2, p. 2, row 13 report
1932.22	Liquid + Cr3Si = βCr5Si3	L: Si 0.3826; Cr3Si: Si 0.2893; βCr5Si3: Si 0.3709	model	[3] Chen 2009	Table 2, p. 3, row 2 report
1792.15	L + βCr5Si3 ↔ αCr5Si3	βCr5Si3: Si 0.375; αCr5Si3: Si 0.375	unspecified	[2] Du 2000	Table 1, p. 2, row 18 report
1781.97	Liquid + βCr5Si3 = αCr5Si3	L: Si 0.5038; βCr5Si3: Si 0.3747; αCr5Si3: Si 0.375	model	[3] Chen 2009	Table 2, p. 3, row 4 report
1778.15	βCr5Si3 ↔ αCr5Si3 + Cr3Si	βCr5Si3: Si 0.375; αCr5Si3: Si 0.375; Cr3Si: Si 0.25	experimental	[2] Du 2000 cites Chang 1968	Table 1, p. 2, row 19 report
1778.15	L + βCr5Si3 ↔ αCr5Si3	βCr5Si3: Si 0.375; αCr5Si3: Si 0.375	experimental	[2] Du 2000 cites Chang 1968	Table 1, p. 2, row 17 report
1774.21	βCr5Si3 = αCr5Si3 + Cr3Si	βCr5Si3: Si 0.3728; αCr5Si3: Si 0.375; Cr3Si: Si 0.2857	model	[3] Chen 2009	Table 2, p. 3, row 3 report
1761.15	βCr5Si3 ↔ αCr5Si3 + Cr3Si	βCr5Si3: Si 0.375; αCr5Si3: Si 0.375; Cr3Si: Si 0.25	unspecified	[2] Du 2000	Table 1, p. 2, row 20 report
1741	congruent melting: Cr2Si -> Liquid	Cr2Si: Si 0.666; L: Si 0.666	model	[1] (ed.) 1998	Table I, p. 167, row 8 report
1718.5	peritectic: Liquid + Cr5Si3 -> CrSi	L: Si 0.56; Cr5Si3: Si 0.375; CrSi: Si 0.5	model	[1] (ed.) 1998	Table I, p. 167, row 3 report
1718.15	L + αCr5Si3 ↔ CrSi	αCr5Si3: Si 0.375; CrSi: Si 0.5	model	[2] Du 2000 cites Coughanowr 1994 doi	Table 1, p. 2, row 25 report
1709.15	L ↔ CrSi + CrSi2	CrSi: Si 0.5; CrSi2: Si 0.666667	model	[2] Du 2000 cites Coughanowr 1994 doi	Table 1, p. 2, row 30 report
1708.8	eutectic: Liquid -> CrSi + CrSi2	L: Si 0.574; CrSi: Si 0.5; CrSi2: Si 0.656	model	[1] (ed.) 1998	Table I, p. 167, row 4 report
1705.15	L + αCr5Si3 ↔ CrSi	αCr5Si3: Si 0.375; CrSi: Si 0.5	experimental	[2] Du 2000 cites Chang 1968	Table 1, p. 2, row 21 report
1705.15	L + αCr5Si3 -> CrSi	αCr5Si3: Si 0.375; CrSi: Si 0.5	unspecified	[2] Du 2000	Table 2, p. 2, row 8 report
1702.15	L + αCr5Si3 ↔ CrSi	αCr5Si3: Si 0.375; CrSi: Si 0.5	experimental	[2] Du 2000 cites Svechnikov 1964	Table 1, p. 2, row 22 report
1698.15	L + αCr5Si3 ↔ CrSi	αCr5Si3: Si 0.375; CrSi: Si 0.5	experimental	[2] Du 2000	Table 1, p. 2, row 23 report
1697.92	Liquid + αCr5Si3 = CrSi	L: Si 0.5466; αCr5Si3: Si 0.375; CrSi: Si 0.5	model	[3] Chen 2009	Table 2, p. 3, row 7 report
1697.15	L + αCr5Si3 ↔ CrSi	αCr5Si3: Si 0.375; CrSi: Si 0.5	unspecified	[2] Du 2000	Table 1, p. 2, row 24 report
1686.15	L + αCr5Si3 -> CrSi	αCr5Si3: Si 0.375; CrSi: Si 0.5	experimental	[2] Du 2000 cites Chang 1968	Table 2, p. 2, row 9 report
1682.15	L ↔ CrSi + CrSi2	CrSi: Si 0.5; CrSi2: Si 0.666667	experimental	[2] Du 2000 cites Svechnikov 1964	Table 1, p. 2, row 27 report
1681.15	L ↔ CrSi + CrSi2	CrSi: Si 0.5; CrSi2: Si 0.666667	unspecified	[2] Du 2000	Table 1, p. 2, row 29 report
1680.07	Liquid = CrSi + CrSi2	L: Si 0.5754; CrSi: Si 0.5; CrSi2: Si 0.6623	model	[3] Chen 2009	Table 2, p. 3, row 6 report
1677.15	L ↔ CrSi + CrSi2	CrSi: Si 0.5; CrSi2: Si 0.666667	experimental	[2] Du 2000	Table 1, p. 2, row 28 report
1675.15	L ↔ CrSi + CrSi2	CrSi: Si 0.5; CrSi2: Si 0.666667	experimental	[2] Du 2000 cites Chang 1968	Table 1, p. 2, row 26 report
1675.15	eutectic: L -> CrSi2 + CrSi	CrSi2: Si 0.666667; CrSi: Si 0.5	unspecified	[2] Du 2000	Table 2, p. 2, row 6 report
1663.15	eutectic: L -> CrSi2 + CrSi	CrSi2: Si 0.666667; CrSi: Si 0.5	experimental	[2] Du 2000 cites Chang 1968	Table 2, p. 2, row 7 report
1607.15	L ↔ (Si) + CrSi2	(Si): Si 1; CrSi2: Si 0.666667	model	[2] Du 2000 cites Coughanowr 1994 doi	Table 1, p. 2, row 40 report
1606.7	eutectic: Liquid -> CrSi2 + diamond	L: Si 0.864; CrSi2: Si 0.673; diamond: Si 1	model	[1] (ed.) 1998	Table I, p. 167, row 5 report
1601.15	L ↔ (Si) + CrSi2	(Si): Si 1; CrSi2: Si 0.666667	unspecified	[2] Du 2000	Table 1, p. 2, row 39 report
1601.15	L ↔ (Si) + CrSi2	(Si): Si 1; CrSi2: Si 0.666667	experimental	[2] Du 2000	Table 1, p. 2, row 38 report
1596.05	Liquid = CrSi2 + (Si)	L: Si 0.8536; CrSi2: Si 0.6787; (Si): Si 1	model	[3] Chen 2009	Table 2, p. 3, row 5 report
1582.15	L ↔ (Si) + CrSi2	(Si): Si 1; CrSi2: Si 0.666667	experimental	[2] Du 2000 cites Svechnikov 1964	Table 1, p. 2, row 37 report
1581.15	L ↔ (Si) + CrSi2	(Si): Si 1; CrSi2: Si 0.666667	experimental	[2] Du 2000 cites Chang 1968	Table 1, p. 2, row 36 report
1581.15	eutectic: L -> (Si) + CrSi2	(Si): Si 1; CrSi2: Si 0.666667	unspecified	[2] Du 2000	Table 2, p. 2, row 1 report
1578.15	eutectic: L -> (Si) + CrSi2	(Si): Si 1; CrSi2: Si 0.666667	experimental	[2] Du 2000 cites Chang 1968	Table 2, p. 2, row 2 report

Formation enthalpies

Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from dft_parity.json.

Enthalpies of formation, Cr–Si system (29)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location
Cr3Si	Cr3Si	-34.7 kJ/mol-atom	298.15	experimental	-31.155 (mp-aaaaabcb)	-34.888 (oqmd-3600)	[4] Coughanowr 1994 cites ref. 61Gol2	Table 6, p. 14, row 1 report
Cr3Si	Cr3Si	-31.92 kJ/mol-atom		model	-31.155 (mp-aaaaabcb)	-34.888 (oqmd-3600)	[4] Coughanowr 1994	Table 6, p. 14, row 4 report
Cr3Si	Cr3Si	-31.59 kJ/mol-atom		model	-31.155 (mp-aaaaabcb)	-34.888 (oqmd-3600)	[4] Coughanowr 1994	Table 6, p. 14, row 2 report
Cr3Si		-31.59 per mol-atom	298.15	model			[2] Du 2000 cites Coughanowr 1994 doi	Table 4, p. 4, row 3 report
Cr3Si	Cr3Si	-31.41 kJ/mol-atom		model	-31.155 (mp-aaaaabcb)	-34.888 (oqmd-3600)	[4] Coughanowr 1994	Table 6, p. 14, row 3 report
Cr3Si		-28.749 per mol-atom	298.15	model			[2] Du 2000	Table 4, p. 4, row 2 report
Cr3Si		-27.2 per mol-atom ± 1100	298.15	experimental			[2] Du 2000 cites Meschel 1998 doi	Table 4, p. 4, row 1 report
Cr5Si3	Cr5Si3	-41 kJ/mol-atom	298.15	experimental	-27.079 (mp-aaaaalcs)	-29.969 (oqmd-3178)	[4] Coughanowr 1994 cites ref. 61Gol2	Table 6, p. 14, row 5 report
Cr5Si3	Cr5Si3	-32.9 kJ/mol-atom		model	-27.079 (mp-aaaaalcs)	-29.969 (oqmd-3178)	[4] Coughanowr 1994	Table 6, p. 14, row 8 report
Cr5Si3	Cr5Si3	-32.57 kJ/mol-atom		model	-27.079 (mp-aaaaalcs)	-29.969 (oqmd-3178)	[4] Coughanowr 1994	Table 6, p. 14, row 6 report
Cr5Si3	Cr5Si3	-32.52 kJ/mol-atom		model	-27.079 (mp-aaaaalcs)	-29.969 (oqmd-3178)	[4] Coughanowr 1994	Table 6, p. 14, row 7 report
CrSi	CrSi	-39.7 kJ/mol-atom	298.15	experimental	-24.637 (mp-aaaaalfk)	-27.832 (oqmd-3602)	[4] Coughanowr 1994 cites ref. 61Gol2	Table 6, p. 14, row 9 report
CrSi		-34.2 per mol-atom ± 1600	298.15	experimental			[2] Du 2000 cites Meschel 1998 doi	Table 4, p. 4, row 7 report
CrSi	CrSi	-30.44 kJ/mol-atom		model	-24.637 (mp-aaaaalfk)	-27.832 (oqmd-3602)	[4] Coughanowr 1994	Table 6, p. 14, row 12 report
CrSi		-30.429 per mol-atom	298.15	model			[2] Du 2000	Table 4, p. 4, row 8 report
CrSi	CrSi	-30.18 kJ/mol-atom		model	-24.637 (mp-aaaaalfk)	-27.832 (oqmd-3602)	[4] Coughanowr 1994	Table 6, p. 14, row 11 report
CrSi		-30.16 per mol-atom	298.15	model			[2] Du 2000 cites Coughanowr 1994 doi	Table 4, p. 4, row 9 report
CrSi	CrSi	-30.16 kJ/mol-atom		model	-24.637 (mp-aaaaalfk)	-27.832 (oqmd-3602)	[4] Coughanowr 1994	Table 6, p. 14, row 10 report
CrSi2	CrSi2	-40.2 kJ/mol-atom	298.15	experimental	-31.349 (mp-aaaaanft)	-35.843 (oqmd-12787)	[4] Coughanowr 1994 cites ref. 61Gol2	Table 6, p. 14, row 13 report
CrSi2		-27.296 per mol-atom	298.15	model			[2] Du 2000	Table 4, p. 4, row 11 report
CrSi2	CrSi2	-26.1 kJ/mol-atom		model	-31.349 (mp-aaaaanft)	-35.843 (oqmd-12787)	[4] Coughanowr 1994	Table 6, p. 14, row 16 report
CrSi2	CrSi2	-26.09 kJ/mol-atom		model	-31.349 (mp-aaaaanft)	-35.843 (oqmd-12787)	[4] Coughanowr 1994	Table 6, p. 14, row 17 report
CrSi2	CrSi2	-26.08 kJ/mol-atom		model	-31.349 (mp-aaaaanft)	-35.843 (oqmd-12787)	[4] Coughanowr 1994	Table 6, p. 14, row 15 report
CrSi2		-26.08 per mol-atom	298.15	model			[2] Du 2000 cites Coughanowr 1994 doi	Table 4, p. 4, row 12 report
CrSi2	CrSi2	-25.8 kJ/mol-atom	298.15	experimental	-31.349 (mp-aaaaanft)	-35.843 (oqmd-12787)	[4] Coughanowr 1994 cites ref. 87Top	Table 6, p. 14, row 14 report
CrSi2		-25.8 per mol-atom ± 4400	298.15	experimental			[2] Du 2000 cites ref. 1987Top	Table 4, p. 4, row 10 report
αCr5Si3		-33.6 per mol-atom ± 1000	298.15	experimental			[2] Du 2000 cites Meschel 1998 doi	Table 4, p. 4, row 4 report
αCr5Si3		-32.57 per mol-atom	298.15	model			[2] Du 2000 cites Coughanowr 1994 doi	Table 4, p. 4, row 6 report
αCr5Si3		-32.525 per mol-atom	298.15	model			[2] Du 2000	Table 4, p. 4, row 5 report

Other properties

Phase transition (24)

Phase transition, Cr–Si system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	1702.15 K	1702.15	L ↔ CrSi2 L: Si 0.666667; CrSi2: Si 0.666667	experimental	[2] Du 2000 cites Svechnikov 1964	Table 1, p. 2, row 32 report
Phase transition	1710.15 K	1710.15	L -> CrSi2 L: Si 0.666667; CrSi2: Si 0.666667	unspecified	[2] Du 2000	Table 2, p. 2, row 5 report
Phase transition	1710.15 K	1710.15	L ↔ CrSi2 L: Si 0.666667; CrSi2: Si 0.666667	experimental	[2] Du 2000 cites Chang 1968	Table 1, p. 2, row 31 report
Phase transition	1711.15 K	1711.15	L -> CrSi2 L: Si 0.666667; CrSi2: Si 0.666667	unspecified	[2] Du 2000	Table 2, p. 2, row 3 report
Phase transition	1711.15 K	1711.15	L ↔ CrSi2 L: Si 0.666667; CrSi2: Si 0.666667	experimental	[2] Du 2000	Table 1, p. 2, row 33 report
Phase transition	1712.15 K	1712.15	L ↔ CrSi2 L: Si 0.666667; CrSi2: Si 0.666667	unspecified	[2] Du 2000	Table 1, p. 2, row 34 report
Phase transition	1713.75 K	1713.75	Liquid = CrSi2 L: Si 0.6664; CrSi2: Si 0.6664	model	[3] Chen 2009	Table 2, p. 3, row 8 report
Phase transition	1741.15 K	1741.15	L ↔ CrSi2 L: Si 0.666667; CrSi2: Si 0.666667	model	[2] Du 2000 cites Coughanowr 1994 doi	Table 1, p. 2, row 35 report
Phase transition	1763.15 K	1763.15	L -> CrSi2 L: Si 0.666667; CrSi2: Si 0.666667	experimental	[2] Du 2000 cites Chang 1968	Table 2, p. 2, row 4 report
Phase transition	1939.15 K	1939.15	L ↔ βCr5Si3 L: Si 0.375; βCr5Si3: Si 0.375	unspecified	[2] Du 2000	Table 1, p. 2, row 15 report
Phase transition	1941.15 K	1941.15	L -> βCr5Si3 L: Si 0.375; βCr5Si3: Si 0.375	unspecified	[2] Du 2000	Table 2, p. 2, row 10 report
Phase transition	1941.15 K	1941.15 (>)	L ↔ βCr5Si3 L: Si 0.375; βCr5Si3: Si 0.375	experimental	[2] Du 2000 cites Chang 1968	Table 1, p. 2, row 13 report
Phase transition	1951.15 K	1951.15	L ↔ βCr5Si3 L: Si 0.375; βCr5Si3: Si 0.375	model	[2] Du 2000 cites Coughanowr 1994 doi	Table 1, p. 2, row 16 report
Phase transition	1953.15 K	1953.15	L -> βCr5Si3 L: Si 0.375; βCr5Si3: Si 0.375	experimental	[2] Du 2000 cites Chang 1968	Table 2, p. 2, row 11 report
Phase transition	1993.15 K	1993.15	L ↔ βCr5Si3 L: Si 0.375; βCr5Si3: Si 0.375	experimental	[2] Du 2000 cites Svechnikov 1964	Table 1, p. 2, row 14 report
Phase transition	2039.15 K	2039.15	L -> Cr3Si L: Si 0.25; Cr3Si: Si 0.25	unspecified	[2] Du 2000	Table 2, p. 2, row 14 report
Phase transition	2039.15 K	2039.15 (>)	L ↔ Cr3Si L: Si 0.25; Cr3Si: Si 0.25	experimental	[2] Du 2000 cites Chang 1968	Table 1, p. 2, row 5 report
Phase transition	2043.15 K	2043.15	L -> Cr3Si L: Si 0.25; Cr3Si: Si 0.25	experimental	[2] Du 2000 cites Chang 1968	Table 2, p. 2, row 15 report
Phase transition	2043.15 K	2043.15	L ↔ Cr3Si L: Si 0.25; Cr3Si: Si 0.25	experimental	[2] Du 2000 cites Svechnikov 1964	Table 1, p. 2, row 6 report
Phase transition	2047.54 K	2047.54	Liquid = Cr3Si L: Si 0.2603; Cr3Si: Si 0.2603	model	[3] Chen 2009	Table 2, p. 3, row 9 report
Phase transition	2050.15 K	2050.15	L ↔ Cr3Si L: Si 0.25; Cr3Si: Si 0.25	model	[2] Du 2000 cites Coughanowr 1994 doi	Table 1, p. 2, row 8 report
Phase transition	2053.15 K	2053.15	L ↔ Cr3Si L: Si 0.25; Cr3Si: Si 0.25	unspecified	[2] Du 2000	Table 1, p. 2, row 7 report
Phase transition	2133.15 K	2133.15	Cr + liquid	experimental	[4] Coughanowr 1994 cites ref. 67Rud	p. 2 report	At the time when Svechnikov et al. and Chang reported their results for the Cr-Si system, a melting temperature of 188W'C (2153 K) had been established for Cr [58Han, 65Ell]; Chang used an even lower value, 1860°C (2133 K), determined by Rudy [67Rud].
Phase transition	2180.15 K	2180.15	Cr + liquid	model	[4] Coughanowr 1994 cites ref. 91Din	p. 2 report	However, the T, of 1907°C (2180 K) adopted by SGTE ' [91Din] and used in the present work is higher by 27-47°C.

Crystal structure (6)

Crystal structure, Cr–Si system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Lattice a	4.558 Å	298.15	Cr3Si alloy: Cr 0.75, Si 0.25	model	[5] Hu 2013 cites Gokhale 1987 doi	Table 3, p. 4, row 7 report
Lattice a	4.62 Å	298.15	CrSi alloy: Cr 0.5, Si 0.5	model	[5] Hu 2013 cites Gokhale 1987 doi	Table 3, p. 4, row 5 report
Lattice a	4.428 Å	298.15	CrSi2 alloy: Cr 0.333333, Si 0.666667	model	[5] Hu 2013 cites Gokhale 1987 doi	Table 3, p. 4, row 4 report
Lattice a	9.17 Å	298.15	αCr5Si3 alloy: Cr 0.625, Si 0.375	model	[5] Hu 2013 cites Gokhale 1987 doi	Table 3, p. 4, row 6 report
Lattice c	6.368 Å	298.15	CrSi2 alloy: Cr 0.333333, Si 0.666667	model	[5] Hu 2013 cites Gokhale 1987 doi	Table 3, p. 4, row 4 report
Lattice c	4.636 Å	298.15	αCr5Si3 alloy: Cr 0.625, Si 0.375	model	[5] Hu 2013 cites Gokhale 1987 doi	Table 3, p. 4, row 6 report

Sources

Reporting papers the values were read from (a value cited from another work names that work in its row).

I. Ansara, A. T. Dinsdale, M. H. Rand (eds.), COST 507: Thermochemical database for light metal alloys, Volume 2, EUR 18499 EN, Office for Official Publications of the European Communities, Luxembourg (1998), ISBN 92-828-3902-8.
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). doi:10.1361/105497100770340066
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). doi:10.1016/j.calphad.2008.05.005
Corinne A. Coughanowr, Ibrahim Ansara, Hans Leo Lukas, Assessment of the CrSi System, Calphad 18, 125-140 (1994). doi:10.1016/0364-5916(94)90023-x
Biao Hu, Wei-Wei Zhang, Yingbiao Peng, Yong Du, Shuhong Liu, Yuelan Zhang, Thermodynamic reassessment of the Al–Cr–Si system with the refined description of the Al–Cr system, Thermochimica Acta 561, 77-90 (2013). doi:10.1016/j.tca.2013.03.033

Please cite

R. Arróyave, J. Saal, D. Shin, ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23735569
R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). doi:10.5281/zenodo.23735859
R. Arróyave, J. Saal, D. Shin, ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD) (version 2026.10), Zenodo (2026). doi:10.5281/zenodo.23735891
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 the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work); 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). 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_literature_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735569},
  url       = {https://doi.org/10.5281/zenodo.23735569},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_phase_diagrams_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Diagrams: calculated binary phase diagrams}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735859},
  url       = {https://doi.org/10.5281/zenodo.23735859}
}

@misc{orchid_hulls_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD)}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735891},
  url       = {https://doi.org/10.5281/zenodo.23735891}
}

@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}
}