Cr–Ge system

97 accepted literature values from 2 paper(s) (experimental 61, model 36); 3 calculated phase diagram(s). 21 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 (11) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	61
model	36

Accepted values by property group
Property group	Values
invariant reaction	59
phase transition	3
formation	26
heat capacity / entropy / enthalpy	9

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
CrGe-09Li.tdb	M. Li, C. Guo, C. Li, Z. Du, J. Alloys Compd., 481, 283-90(2009). doi:10.1016/j.jallcom.2009.03.113	`aedc0d72de39cc0c8cc928dd3928afdffd2990b826fa7298f053c84d40c60320`	viewer · TDB · JSON
CrGe-10Liu.tdb	Y.Q. Liu, Y. Du, Calphad, 34, 26-35(2010). doi:10.1016/j.calphad.2009.11.001	`b68d91b4d452158ff51be8316479c8488b547966be73166790f894a182b107bd`	viewer · TDB · JSON
CrGe-15Ber.tdb	A. Berche, J.-C. Tedenac, P. Jund, Calphad, 49, 50-57(2015). doi:10.1016/j.calphad.2015.02.004	`78ffe8b34babcfc89338c5c3bd2452470bb32abf516b89e271adca05700939cb`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
CrGe-09Li.tdb	1837.01	BCC_A2 (x(Ge) 0.11906) + CR3GE_A15 (x(Ge) 0.21609) + LIQUID (x(Ge) 0.23837)
CrGe-09Li.tdb	1535.26	CR3GE_A15 (x(Ge) 0.24879) + CR5GE3_D8M (x(Ge) 0.38379) + LIQUID (x(Ge) 0.48714)
CrGe-09Li.tdb	1443.49	CR5GE3_D8M (x(Ge) 0.39554) + CR11GE8 (x(Ge) 0.42105) + LIQUID (x(Ge) 0.58088)
CrGe-09Li.tdb	1443.49	CR5GE3_D8M (x(Ge) 0.39556) + CR11GE8 (x(Ge) 0.42105) + LIQUID (x(Ge) 0.58097)
CrGe-09Li.tdb	1274.97	CR5GE3_D8M (x(Ge) 0.38218) + CR5GE3_LT (x(Ge) 0.38218) + CR11GE8 (x(Ge) 0.42105)
CrGe-09Li.tdb	1274.97	CR3GE_A15 (x(Ge) 0.24945) + CR5GE3_LT (x(Ge) 0.37965) + CR5GE3_D8M (x(Ge) 0.37965)
CrGe-09Li.tdb	1271.38	CR11GE8 (x(Ge) 0.42105) + CRGE_B20 (x(Ge) 0.5) + LIQUID (x(Ge) 0.73561)
CrGe-09Li.tdb	1271.38	CR11GE8 (x(Ge) 0.42105) + CRGE_B20 (x(Ge) 0.5) + LIQUID (x(Ge) 0.73542)
CrGe-09Li.tdb	1271.38	CR11GE8 (x(Ge) 0.42105) + CRGE_B20 (x(Ge) 0.5) + LIQUID (x(Ge) 0.73569)
CrGe-09Li.tdb	1201.42	CRGE_B20 (x(Ge) 0.5) + CR11GE19 (x(Ge) 0.63333) + LIQUID (x(Ge) 0.80965)
CrGe-09Li.tdb	1201.42	CRGE_B20 (x(Ge) 0.5) + CR11GE19 (x(Ge) 0.63333) + LIQUID (x(Ge) 0.80956)
CrGe-09Li.tdb	1201.42	CRGE_B20 (x(Ge) 0.5) + CR11GE19 (x(Ge) 0.63333) + LIQUID (x(Ge) 0.80981)
CrGe-09Li.tdb	1167.91	CR11GE19 (x(Ge) 0.63333) + LIQUID (x(Ge) 0.8649) + DIAMOND_A4 (x(Ge) 0.99413)
CrGe-09Li.tdb	1167.91	CR11GE19 (x(Ge) 0.63333) + LIQUID (x(Ge) 0.86538) + DIAMOND_A4 (x(Ge) 0.99415)
CrGe-10Liu.tdb	1837.17	BCC_A2 (x(Ge) 0.11645) + CR3GE_A15 (x(Ge) 0.21435) + LIQUID (x(Ge) 0.25225)
CrGe-10Liu.tdb	1535.51	CR3GE_A15 (x(Ge) 0.25258) + CR5GE3_D8M (x(Ge) 0.37229) + LIQUID (x(Ge) 0.4456)
CrGe-10Liu.tdb	1443.22	CR5GE3_D8M (x(Ge) 0.38397) + CR11GE8 (x(Ge) 0.42105) + LIQUID (x(Ge) 0.50394)
CrGe-10Liu.tdb	1275.13	CR5GE3_D8M (x(Ge) 0.3806) + CR5GE3_LT (x(Ge) 0.3806) + CR11GE8 (x(Ge) 0.42105)
CrGe-10Liu.tdb	1275.13	CR3GE_A15 (x(Ge) 0.25199) + CR5GE3_LT (x(Ge) 0.37521) + CR5GE3_D8M (x(Ge) 0.37521)
CrGe-10Liu.tdb	1271.17	CR11GE8 (x(Ge) 0.42105) + CRGE_B20 (x(Ge) 0.5) + LIQUID (x(Ge) 0.66517)
CrGe-10Liu.tdb	1200.47	CRGE_B20 (x(Ge) 0.5) + CR11GE19 (x(Ge) 0.63333) + LIQUID (x(Ge) 0.79253)
CrGe-10Liu.tdb	1167.99	CR11GE19 (x(Ge) 0.63333) + LIQUID (x(Ge) 0.86713) + DIAMOND_A4 (x(Ge) 1)
CrGe-15Ber.tdb	1842.19	BCC_A2 (x(Ge) 0.11489) + CR3GE_A15 (x(Ge) 0.20933) + LIQUID (x(Ge) 0.24921)
CrGe-15Ber.tdb	1522.58	CR3GE_A15 (x(Ge) 0.2492) + CR5GE3_D8M (x(Ge) 0.37991) + LIQUID (x(Ge) 0.44739)
CrGe-15Ber.tdb	1459.64	CR5GE3_D8M (x(Ge) 0.38526) + CR11GE8 (x(Ge) 0.42105) + LIQUID (x(Ge) 0.48709)
CrGe-15Ber.tdb	1276.47	CR3GE_A15 (x(Ge) 0.24986) + CR5GE3_D8M (x(Ge) 0.38029) + CR11GE8 (x(Ge) 0.42105)
CrGe-15Ber.tdb	1271.17	CR11GE8 (x(Ge) 0.42105) + CRGE_B20 (x(Ge) 0.5) + LIQUID (x(Ge) 0.66517)
CrGe-15Ber.tdb	1200.47	CRGE_B20 (x(Ge) 0.5) + CR11GE19 (x(Ge) 0.63333) + LIQUID (x(Ge) 0.79253)
CrGe-15Ber.tdb	1167.99	CR11GE19 (x(Ge) 0.63333) + LIQUID (x(Ge) 0.86713) + DIAMOND_A4 (x(Ge) 1)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull CrGe-09Li · CALPHAD hull CrGe-10Liu

Invariant reactions (literature)

Invariant reactions reported in the literature for the Cr–Ge system (59)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location	Quote
1837.15	peritectic		experimental	[1] Liu 2010	p. 1 report	The Cr-richest phase Cr3 Ge, with a homogeneity range from 20.5 to 25 at.% Ge, decomposes peritectically at 1564 ◦ C.
1837.15	peritectic: L + (Cr) -> Cr3Ge	L: Ge 0.252; (Cr): Ge 0.118; Cr3Ge: Ge 0.214	model	[1] Liu 2010	Table 3, p. 6, row 3 report
1837.15	peritectic: L + (Cr) -> Cr3Ge	Cr3Ge: Ge 0.228	experimental	[1] Liu 2010 cites Godat 1980 doi	Table 3, p. 6, row 1 report
1837	liq + bcc -> Cr3Ge	liq: Ge 0.29; bcc: Ge 0.11; Cr3Ge: Ge 0.228	experimental	[2] Li 2009 cites Gokhale 1986 doi	Table 3, p. 3, row 3 report
1837	liq + bcc -> Cr3Ge	liq: Ge 0.2291; bcc: Ge 0.1113; Cr3Ge: Ge 0.2128	model	[2] Li 2009	Table 3, p. 3, row 2 report
1837	liq + bcc -> Cr3Ge	liq: Ge 0.2384; bcc: Ge 0.1191; Cr3Ge: Ge 0.2161	model	[2] Li 2009	Table 3, p. 3, row 1 report
1683.15	peritectic: L + (Cr) -> Cr3Ge	Cr3Ge: Cr 0.75, Ge 0.25	experimental	[1] Liu 2010 cites Svechnikov 1967	Table 3, p. 6, row 2 report
1535.15	peritectic: L + Cr3Ge -> βCr5Ge3	Cr3Ge: Ge 0.251; βCr5Ge3: Ge 0.378	experimental	[1] Liu 2010 cites Godat 1980 doi	Table 3, p. 6, row 4 report
1535.15	peritectic		experimental	[1] Liu 2010 cites Godat 1980 doi	p. 1 report	The Cr5 Ge3 phase, with a homogeneity range from 37.4 to 38.2 at.% Ge, decomposes peritectically at 1262 ◦ C and undergoes an allotropic transformation at 1002 ◦ C.
1535.15	peritectic: L + Cr3Ge -> βCr5Ge3	L: Ge 0.446; Cr3Ge: Ge 0.253; βCr5Ge3: Ge 0.372	model	[1] Liu 2010	Table 3, p. 6, row 8 report
1523.15	peritectic: L + Cr3Ge -> βCr5Ge3	L: Ge 0.48; Cr3Ge: Ge 0.25; βCr5Ge3: Ge 0.375	experimental	[1] Liu 2010 cites Zagryazhskii 1966 doi	Table 3, p. 6, row 5 report
1518.15	peritectic		experimental	[1] Liu 2010	p. 2 report	The microstructural and XRD studies revealed that Cr5 Ge3 , CrGe, and Cr11 Ge19 are formed peritectically at 1245 ◦ C, 995 ◦ C and 925 ◦ C, respectively, in agreement with the findings of Ref. [10].
1518.15	peritectic: L + Cr3Ge -> βCr5Ge3	Cr3Ge: Cr 0.75, Ge 0.25; βCr5Ge3: Cr 0.625, Ge 0.375	experimental	[1] Liu 2010 cites Kalishevich 1969	Table 3, p. 6, row 7 report
1498.15	peritectic: L + Cr3Ge -> βCr5Ge3	L: Ge 0.48; Cr3Ge: Ge 0.26; βCr5Ge3: Ge 0.37	experimental	[1] Liu 2010 cites Svechnikov 1967	Table 3, p. 6, row 6 report
1443.15	peritectic: L + βCr5Ge3 -> Cr11Ge8	L: Ge 0.504; βCr5Ge3: Ge 0.384; Cr11Ge8: Ge 0.421	model	[1] Liu 2010	Table 3, p. 6, row 12 report
1443.15	peritectic: L + βCr5Ge3 -> Cr11Ge8	βCr5Ge3: Ge 0.3823; Cr11Ge8: Ge 0.4221	experimental	[1] Liu 2010 cites Godat 1980 doi	Table 3, p. 6, row 9 report
1443.15	peritectic		experimental	[1] Liu 2010	p. 1 report	The other three phases, Cr11 Ge8 , CrGe and Cr11 Ge19 , are stoichiometric and melt peritectically at 1170 ◦ C, 998 ◦ C and 928 ◦ C, respectively.
1443	liq + βCr5Ge3 -> Cr11Ge8	βCr5Ge3: Ge 0.3955; Cr11Ge8: Ge 0.4211	model	[2] Li 2009	Table 3, p. 3, row 10 report
1443	liq + βCr5Ge3 -> Cr11Ge8	liq: Ge 0.53; βCr5Ge3: Ge 0.382; Cr11Ge8: Ge 0.421	experimental	[2] Li 2009 cites Gokhale 1986 doi	Table 3, p. 3, row 11 report
1443	liq + βCr5Ge3 -> Cr11Ge8	liq: Ge 0.5809; βCr5Ge3: Ge 0.3955; Cr11Ge8: Ge 0.4211	model	[2] Li 2009	Table 3, p. 3, row 9 report
1433.15	peritectic: L + βCr5Ge3 -> Cr11Ge8	L: Ge 0.52; βCr5Ge3: Ge 0.375; Cr11Ge8: Ge 0.421	experimental	[1] Liu 2010 cites Zagryazhskii 1966 doi	Table 3, p. 6, row 10 report
1388.15	peritectic: L + βCr5Ge3 -> Cr11Ge8	L: Ge 0.51; βCr5Ge3: Cr 0.625, Ge 0.375; Cr11Ge8: Cr 0.578947, Ge 0.421053	experimental	[1] Liu 2010 cites Svechnikov 1967	Table 3, p. 6, row 11 report
1298.15	peritectic: L + Cr11Ge8 -> CrGe	L: Ge 0.6; Cr11Ge8: Ge 0.421; CrGe: Ge 0.5	experimental	[1] Liu 2010 cites Zagryazhskii 1966 doi	Table 3, p. 6, row 14 report
1275.15	polymorphic: αCr5Ge3 -> βCr5Ge3	αCr5Ge3: Cr 0.625, Ge 0.375; βCr5Ge3: Cr 0.625, Ge 0.375	experimental	[1] Liu 2010 cites Godat 1980 doi	Table 3, p. 6, row 29 report
1275.15	polymorphic: αCr5Ge3 -> βCr5Ge3	αCr5Ge3: Cr 0.625, Ge 0.375; βCr5Ge3: Cr 0.625, Ge 0.375	model	[1] Liu 2010	Table 3, p. 6, row 30 report
1275	Cr3Ge + βCr5Ge3 -> αCr5Ge3	Cr3Ge: Ge 0.254; βCr5Ge3: Ge 0.372; αCr5Ge3: Ge 0.375	experimental	[2] Li 2009 cites Gokhale 1986 doi	Table 3, p. 3, row 27 report
1275	βCr5Ge3 -> αCr5Ge3 + Cr11Ge8	βCr5Ge3: Ge 0.375; αCr5Ge3: Ge 0.375; Cr11Ge8: Ge 0.4211	model	[2] Li 2009	Table 3, p. 3, row 30 report
1275	βCr5Ge3 -> αCr5Ge3 + Cr11Ge8	βCr5Ge3: Ge 0.382; αCr5Ge3: Ge 0.382; Cr11Ge8: Ge 0.421	experimental	[2] Li 2009 cites Gokhale 1986 doi	Table 3, p. 3, row 31 report
1275	βCr5Ge3 -> αCr5Ge3 + Cr11Ge8	βCr5Ge3: Ge 0.3822; αCr5Ge3: Ge 0.3822; Cr11Ge8: Ge 0.4211	model	[2] Li 2009	Table 3, p. 3, row 29 report
1275	Cr3Ge + βCr5Ge3 -> αCr5Ge3	Cr3Ge: Ge 0.2495; βCr5Ge3: Ge 0.3797; αCr5Ge3: Ge 0.3797	model	[2] Li 2009	Table 3, p. 3, row 25 report
1275	Cr3Ge + βCr5Ge3 -> αCr5Ge3	Cr3Ge: Ge 0.2495; βCr5Ge3: Ge 0.3797; αCr5Ge3: Ge 0.375	model	[2] Li 2009	Table 3, p. 3, row 26 report
1271.15	peritectic: L + Cr11Ge8 -> CrGe	L: Ge 0.665; Cr11Ge8: Ge 0.421; CrGe: Ge 0.5	model	[1] Liu 2010	Table 3, p. 6, row 18 report
1271.15	peritectic: L + Cr11Ge8 -> CrGe	Cr11Ge8: Cr 0.578947, Ge 0.421053; CrGe: Cr 0.5, Ge 0.5	experimental	[1] Liu 2010 cites Kawasumi 1978 doi	Table 3, p. 6, row 17 report
1271.15	peritectic: L + Cr11Ge8 -> CrGe	Cr11Ge8: Ge 0.4221; CrGe: Ge 0.4991	experimental	[1] Liu 2010 cites Godat 1980 doi	Table 3, p. 6, row 13 report
1271.15	peritectic		experimental	[1] Liu 2010	p. 1 report	The other three phases, Cr11 Ge8 , CrGe and Cr11 Ge19 , are stoichiometric and melt peritectically at 1170 ◦ C, 998 ◦ C and 928 ◦ C, respectively.
1271	liq + Cr11Ge8 -> CrGe	liq: Ge 0.7355; Cr11Ge8: Ge 0.4211; CrGe: Ge 0.5	model	[2] Li 2009	Table 3, p. 3, row 13 report
1271	liq + Cr11Ge8 -> CrGe	liq: Ge 0.68; Cr11Ge8: Ge 0.421; CrGe: Ge 0.5	experimental	[2] Li 2009 cites Gokhale 1986 doi	Table 3, p. 3, row 15 report
1271	liq + Cr11Ge8 -> CrGe	Cr11Ge8: Ge 0.4211; CrGe: Ge 0.5	model	[2] Li 2009	Table 3, p. 3, row 14 report
1268.15	peritectic: L + Cr11Ge8 -> CrGe	Cr11Ge8: Cr 0.578947, Ge 0.421053; CrGe: Cr 0.5, Ge 0.5	experimental	[1] Liu 2010 cites Kalishevich 1969	Table 3, p. 6, row 16 report
1268.15	peritectic		experimental	[1] Liu 2010	p. 2 report	The microstructural and XRD studies revealed that Cr5 Ge3 , CrGe, and Cr11 Ge19 are formed peritectically at 1245 ◦ C, 995 ◦ C and 925 ◦ C, respectively, in agreement with the findings of Ref. [10].
1263.15	peritectic: L + Cr11Ge8 -> CrGe	L: Ge 0.67; Cr11Ge8: Ge 0.42; CrGe: Ge 0.5	experimental	[1] Liu 2010 cites Svechnikov 1967	Table 3, p. 6, row 15 report
1228.15	peritectic: L + CrGe -> Cr11Ge19	L: Ge 0.72; CrGe: Ge 0.5; Cr11Ge19: Ge 0.633	experimental	[1] Liu 2010 cites Zagryazhskii 1966 doi	Table 3, p. 6, row 20 report
1208.15	peritectic: L + CrGe -> Cr11Ge19	CrGe: Cr 0.5, Ge 0.5; Cr11Ge19: Cr 0.366667, Ge 0.633333	experimental	[1] Liu 2010 cites Kawasumi 1978 doi	Table 3, p. 6, row 23 report
1201.15	peritectic: L + CrGe -> Cr11Ge19	CrGe: Ge 0.4991; Cr11Ge19: Ge 0.6343	experimental	[1] Liu 2010 cites Godat 1980 doi	Table 3, p. 6, row 19 report
1201.15	peritectic		experimental	[1] Liu 2010	p. 1 report	The other three phases, Cr11 Ge8 , CrGe and Cr11 Ge19 , are stoichiometric and melt peritectically at 1170 ◦ C, 998 ◦ C and 928 ◦ C, respectively.
1201	liq + CrGe -> Cr11Ge19	liq: Ge 0.8097; CrGe: Ge 0.5; Cr11Ge19: Ge 0.6333	model	[2] Li 2009	Table 3, p. 3, row 17 report
1201	liq + CrGe -> Cr11Ge19	liq: Ge 0.78; CrGe: Ge 0.5; Cr11Ge19: Ge 0.633	experimental	[2] Li 2009 cites Gokhale 1986 doi	Table 3, p. 3, row 19 report
1201	liq + CrGe -> Cr11Ge19	CrGe: Ge 0.5; Cr11Ge19: Ge 0.6333	model	[2] Li 2009	Table 3, p. 3, row 18 report
1200.15	peritectic: L + CrGe -> Cr11Ge19	L: Ge 0.793; CrGe: Ge 0.5; Cr11Ge19: Ge 0.633	model	[1] Liu 2010	Table 3, p. 6, row 24 report
1198.15	peritectic: L + CrGe -> Cr11Ge19	CrGe: Cr 0.5, Ge 0.5; Cr11Ge19: Cr 0.366667, Ge 0.633333	experimental	[1] Liu 2010 cites Kalishevich 1969	Table 3, p. 6, row 22 report
1198.15	peritectic		experimental	[1] Liu 2010	p. 2 report	The microstructural and XRD studies revealed that Cr5 Ge3 , CrGe, and Cr11 Ge19 are formed peritectically at 1245 ◦ C, 995 ◦ C and 925 ◦ C, respectively, in agreement with the findings of Ref. [10].
1193.15	eutectic: L -> Cr11Ge19 + (Ge)	L: Ge 0.78; Cr11Ge19: Ge 0.633; (Ge): Ge 1	experimental	[1] Liu 2010 cites Zagryazhskii 1966 doi	Table 3, p. 6, row 26 report
1173.15	peritectic: L + CrGe -> Cr11Ge19	L: Ge 0.75; CrGe: Ge 0.5; Cr11Ge19: Ge 0.66	experimental	[1] Liu 2010 cites Svechnikov 1967	Table 3, p. 6, row 21 report
1168.15	eutectic: L -> Cr11Ge19 + (Ge)	L: Ge 0.85; Cr11Ge19: Ge 0.6343; (Ge): Ge 1	experimental	[1] Liu 2010 cites Godat 1980 doi	Table 3, p. 6, row 25 report
1168.15	eutectic: L -> Cr11Ge19 + (Ge)	L: Ge 0.867; Cr11Ge19: Ge 0.633; (Ge): Ge 1	model	[1] Liu 2010	Table 3, p. 6, row 28 report
1168	eutectic: liq -> Cr11Ge19 + diamond	Cr11Ge19: Ge 0.6333; diamond: Ge 0.998	model	[2] Li 2009	Table 3, p. 3, row 22 report
1168	eutectic: liq -> Cr11Ge19 + diamond	liq: Ge 0.85; Cr11Ge19: Ge 0.633; diamond: Ge 0.997	experimental	[2] Li 2009 cites Gokhale 1986 doi	Table 3, p. 3, row 23 report
1168	eutectic: liq -> Cr11Ge19 + diamond	liq: Ge 0.8654; Cr11Ge19: Ge 0.6333; diamond: Ge 0.9927	model	[2] Li 2009	Table 3, p. 3, row 21 report
1138.15	eutectic: L -> Cr11Ge19 + (Ge)	L: Ge 0.78; Cr11Ge19: Ge 0.66; (Ge): Ge 0.97	experimental	[1] Liu 2010 cites Svechnikov 1967	Table 3, p. 6, row 27 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–Ge system (16)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location	Quote
Cr11Ge19	Cr11Ge19	-10.16 kJ/mol-atom	298.15	model	-1.079 (mp-aaabgzyh)		[1] Liu 2010	Table 4, p. 7, row 12 report
Cr11Ge19	Cr11Ge19	-7.28 kJ/mol-atom	298.15	experimental	-1.079 (mp-aaabgzyh)		[1] Liu 2010 cites Lukashenko 1974	Table 4, p. 7, row 11 report
Cr11Ge8	Cr11Ge8	-30.7 kJ/mol-atom	1273	experimental	0.724 (mp-aaabgmwh)		[1] Liu 2010 cites Yassin 1999 doi	p. 2 report	The deduced enthalpies of formation for Cr11 Ge8 at 1305 K and 1273 K relative to both liquid components are about -28.6 kJ/mol-atom and -30.7 kJ/mol-atom, respectively.
Cr11Ge8	Cr11Ge8	-28.6 kJ/mol-atom	1305	experimental	0.724 (mp-aaabgmwh)		[1] Liu 2010 cites Yassin 1999 doi	p. 2 report	The deduced enthalpies of formation for Cr11 Ge8 at 1305 K and 1273 K relative to both liquid components are about -28.6 kJ/mol-atom and -30.7 kJ/mol-atom, respectively.
Cr11Ge8	Cr11Ge8	-16.19 kJ/mol-atom	298.15	model	0.724 (mp-aaabgmwh)		[1] Liu 2010	Table 4, p. 7, row 8 report
Cr11Ge8	Cr11Ge8	-10.92 kJ/mol-atom	298.15	experimental	0.724 (mp-aaabgmwh)		[1] Liu 2010 cites Lukashenko 1974	Table 4, p. 7, row 7 report
Cr3Ge		-19.3 unspecified ± 2.5	298.15	model			[1] Liu 2010 cites Zarembo 2001 doi	p. 3 report	The reported standard enthalpies of formation at 298 K are -19.3 ± 2.5 kJ/mol atom for Cr0.75 Ge0.25 (Cr3 Ge) and -12.3 ± 2.5 kJ/mol-atom for Cr0.63 Ge0.37 (Cr5 Ge3 ).
Cr3Ge	Cr3Ge	-19.3 kJ/mol-atom ± 2.5	298.15	experimental	-10.8 (mp-aaaabepp)	-12.732 (oqmd-647110)	[1] Liu 2010 cites Zarembo 2001 doi	Table 4, p. 7, row 1 report
Cr3Ge	Cr3Ge	-19.12 kJ/mol-atom	298.15	experimental	-10.8 (mp-aaaabepp)	-12.732 (oqmd-647110)	[1] Liu 2010 cites Lukashenko 1974	Table 4, p. 7, row 2 report
Cr3Ge	Cr3Ge	-15.33 kJ/mol-atom	298.15	model	-10.8 (mp-aaaabepp)	-12.732 (oqmd-647110)	[1] Liu 2010	Table 4, p. 7, row 3 report
Cr5Ge3		-12.3 unspecified ± 2.5	298.15	model			[1] Liu 2010 cites Zarembo 2001 doi	p. 3 report	The reported standard enthalpies of formation at 298 K are -19.3 ± 2.5 kJ/mol atom for Cr0.75 Ge0.25 (Cr3 Ge) and -12.3 ± 2.5 kJ/mol-atom for Cr0.63 Ge0.37 (Cr5 Ge3 ).
CrGe	CrGe	-13.85 kJ/mol-atom	298.15	model	1.407 (mp-aaaabewj)	-1.042 (oqmd-1790912)	[1] Liu 2010	Table 4, p. 7, row 10 report
CrGe	CrGe	-10.25 kJ/mol-atom	298.15	experimental	1.407 (mp-aaaabewj)	-1.042 (oqmd-1790912)	[1] Liu 2010 cites Lukashenko 1974	Table 4, p. 7, row 9 report
αCr5Ge3	Cr5Ge3	-16.3 kJ/mol-atom	298.15	model	1.856 (mp-aaabgisq)	1.106 (oqmd-13726)	[1] Liu 2010	Table 4, p. 7, row 6 report
αCr5Ge3	Cr5Ge3	-15.7 kJ/mol-atom ± 1	298.15	experimental	1.856 (mp-aaabgisq)	1.106 (oqmd-13726)	[1] Liu 2010 cites Kleppa 1990	Table 4, p. 7, row 5 report
αCr5Ge3	Cr5Ge3	-12.3 kJ/mol-atom ± 2.5	298.15	experimental	1.856 (mp-aaabgisq)	1.106 (oqmd-13726)	[1] Liu 2010 cites Zarembo 2001 doi	Table 4, p. 7, row 4 report

Other properties

Phase transition (3)

Phase transition, Cr–Ge system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	1208.15 K	1208.15	Cr11Ge19	experimental	[1] Liu 2010 cites Kawasumi 1978 doi	p. 2 report	The latter two temperatures agree well with those of 998 ◦ C and 935 ◦ C reported by Kawasumi et al. [14].
Phase transition	1271.15 K	1271.15	CrGe	experimental	[1] Liu 2010 cites Kawasumi 1978 doi	p. 2 report	The latter two temperatures agree well with those of 998 ◦ C and 935 ◦ C reported by Kawasumi et al. [14].
Phase transition	1275.15 K	1275.15	polymorphic	experimental	[1] Liu 2010 cites Godat 1980 doi	p. 1 report	The Cr5 Ge3 phase, with a homogeneity range from 37.4 to 38.2 at.% Ge, decomposes peritectically at 1262 ◦ C and undergoes an allotropic transformation at 1002 ◦ C.

Formation (10)

Formation, Cr–Ge system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Gibbs energy of formation printed: ΔfG0 1530	-16.47 kJ/mol-atom	1530	Cr0.63Ge0.37 alloy: Ge 0.37	model	[1] Liu 2010	Table 4, p. 7, row 31 report
Gibbs energy of formation printed: ΔfG0 1530	-16.34 kJ/mol-atom	1530	Cr0.63Ge0.37 alloy: Ge 0.37	experimental	[1] Liu 2010 cites Zarembo 2001 doi	Table 4, p. 7, row 30 report
Gibbs energy of formation printed: ΔfG0 1530	-17.38 kJ/mol-atom	1530	Cr0.75Ge0.25 alloy: Ge 0.25	experimental	[1] Liu 2010 cites Zarembo 2001 doi	Table 4, p. 7, row 24 report
Gibbs energy of formation printed: ΔfG0 1530	-19.22 kJ/mol-atom	1530	Cr0.75Ge0.25 alloy: Ge 0.25	experimental	[1] Liu 2010 cites Zarembo 2001 doi	Table 4, p. 7, row 23 report
Gibbs energy of formation printed: ΔfG0 1530	-15.73 kJ/mol-atom	1530	Cr0.75Ge0.25 alloy: Ge 0.25	model	[1] Liu 2010	Table 4, p. 7, row 25 report
Gibbs energy of formation printed: ΔfG0 1530	-18.07 kJ/mol-atom	1530	Cr0.75Ge0.25 alloy: Ge 0.25	experimental	[1] Liu 2010 cites Zarembo 2001 doi	Table 4, p. 7, row 22 report
Gibbs energy of formation printed: ΔfG0 1530	-13.4 kJ/mol-atom	1530	Cr0.8Ge0.2 alloy: Ge 0.2	model	[1] Liu 2010	Table 4, p. 7, row 29 report
Gibbs energy of formation printed: ΔfG0 1530	-13.69 kJ/mol-atom	1530	Cr0.8Ge0.2 alloy: Ge 0.2	experimental	[1] Liu 2010 cites Zarembo 2001 doi	Table 4, p. 7, row 27 report
Gibbs energy of formation printed: ΔfG0 1530	-14.37 kJ/mol-atom	1530	Cr0.8Ge0.2 alloy: Ge 0.2	experimental	[1] Liu 2010 cites Zarembo 2001 doi	Table 4, p. 7, row 26 report
Gibbs energy of formation printed: ΔfG0 1530	-14.51 kJ/mol-atom	1530	Cr0.8Ge0.2 alloy: Ge 0.2	experimental	[1] Liu 2010 cites Zarembo 2001 doi	Table 4, p. 7, row 28 report

Heat capacity / entropy / enthalpy (9)

Heat capacity / entropy / enthalpy, Cr–Ge system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Entropy printed: S0 298	31.7 J/mol-atom/K	298.15	Cr11Ge19 alloy: Ge 0.633333	experimental	[1] Liu 2010 cites Gokhale 1986 doi	Table 4, p. 7, row 20 report
Entropy printed: S0 298	29.83 J/mol-atom/K	298.15	Cr11Ge19 alloy: Ge 0.633333	model	[1] Liu 2010	Table 4, p. 7, row 21 report
Entropy printed: S0 298	26.07 J/mol-atom/K	298.15	Cr11Ge8 alloy: Ge 0.421053	model	[1] Liu 2010	Table 4, p. 7, row 17 report
Entropy printed: S0 298	27.07 J/mol-atom/K	298.15	Cr3Ge alloy: Ge 0.25	model	[1] Liu 2010	Table 4, p. 7, row 14 report
Entropy printed: S0 298	26 J/mol-atom/K	298.15	Cr3Ge alloy: Ge 0.25	experimental	[1] Liu 2010 cites Gokhale 1986 doi	Table 4, p. 7, row 13 report
Entropy printed: S0 298	30.6 J/mol-atom/K	298.15	CrGe alloy: Ge 0.5	experimental	[1] Liu 2010 cites Gokhale 1986 doi	Table 4, p. 7, row 18 report
Entropy printed: S0 298	29.03 J/mol-atom/K	298.15	CrGe alloy: Ge 0.5	model	[1] Liu 2010	Table 4, p. 7, row 19 report
Entropy printed: S0 298	29.6 J/mol-atom/K	298.15	αCr5Ge3 alloy: Ge 0.375	experimental	[1] Liu 2010 cites Gokhale 1986 doi	Table 4, p. 7, row 15 report
Entropy printed: S0 298	26.87 J/mol-atom/K	298.15	αCr5Ge3 alloy: Ge 0.375	model	[1] Liu 2010	Table 4, p. 7, row 16 report

Sources

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

Y.Q. Liu, Y. Du, Thermodynamic description of the Cr–Ge system, Calphad 34, 26-35 (2010). doi:10.1016/j.calphad.2009.11.001
Mei Li, Cuiping Guo, Changrong Li, Zhenmin Du, A thermodynamic description of the Cr–Ge system, Journal of Alloys and Compounds 481, 283-290 (2009). doi:10.1016/j.jallcom.2009.03.113

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}
}