Ge–Ni system

97 accepted literature values from 2 paper(s) (experimental 47, model 44, DFT 6); 2 calculated phase diagram(s). 16 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 (15) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	47
model	44
DFT	6

Accepted values by property group
Property group	Values
invariant reaction	83
phase transition	3
phase equilibrium	1
formation	10

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
GeNi-10Liu.tdb	Y.Q. Liu, D.J. Ma, Y. Du, J. Alloys Compd., 491, 63-71(2010). doi:10.1016/j.jallcom.2009.11.036	`a0dfa92b256d22a2863cf66af97f154e8a3466680b367ed308caf2262958eb71`	viewer · TDB · JSON
GeNi-12Jin.tdb	S. Jin, C. Leinenbach, J. Wang, L.I. Duarte, S. Delsante, G. Borzone, A. Scott, A. Watson, Calphad, 38, 23-34(2012). doi:10.1016/j.calphad.2012.03.003	`f6986d20b97522e64849eed1681bc30c929a518b00895a645618cbd195ef0208`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
GeNi-10Liu.tdb	1398.91	GENI3_L12 (x(Ni) 0.76677) + LIQUID (x(Ni) 0.7673) + FCC_A1 (x(Ni) 0.84055)
GeNi-10Liu.tdb	1389.06	LIQUID (x(Ni) 0.73326) + GENI3_B32 (x(Ni) 0.744) + GENI3_L12 (x(Ni) 0.75646)
GeNi-10Liu.tdb	1389.06	LIQUID (x(Ni) 0.73344) + GENI3_B32 (x(Ni) 0.744) + GENI3_L12 (x(Ni) 0.7565)
GeNi-10Liu.tdb	1381.73	LIQUID (x(Ni) 0.71961) + GE2NI5 (x(Ni) 0.72) + GENI3_B32 (x(Ni) 0.744)
GeNi-10Liu.tdb	1381.73	LIQUID (x(Ni) 0.71962) + GE2NI5 (x(Ni) 0.72) + GENI3_B32 (x(Ni) 0.744)
GeNi-10Liu.tdb	1381.73	LIQUID (x(Ni) 0.71969) + GE2NI5 (x(Ni) 0.72) + GENI3_B32 (x(Ni) 0.744)
GeNi-10Liu.tdb	1381.48	GE3NI5_B82 (x(Ni) 0.65411) + LIQUID (x(Ni) 0.71585) + GE2NI5 (x(Ni) 0.72)
GeNi-10Liu.tdb	1381.48	GE3NI5_B82 (x(Ni) 0.65413) + LIQUID (x(Ni) 0.71588) + GE2NI5 (x(Ni) 0.72)
GeNi-10Liu.tdb	1357.24	GE2NI5 (x(Ni) 0.72) + GENI3_B32 (x(Ni) 0.744) + GENI3_L12 (x(Ni) 0.75371)
GeNi-10Liu.tdb	1357.24	GE2NI5 (x(Ni) 0.72) + GENI3_B32 (x(Ni) 0.744) + GENI3_L12 (x(Ni) 0.75373)
GeNi-10Liu.tdb	1357.24	GE2NI5 (x(Ni) 0.72) + GENI3_B32 (x(Ni) 0.744) + GENI3_L12 (x(Ni) 0.75372)
GeNi-10Liu.tdb	1325.25	LIQUID (x(Ni) 0.51649) + GE12NI19 (x(Ni) 0.60524) + GE3NI5_B82 (x(Ni) 0.61981)
GeNi-10Liu.tdb	1317.71	GE3NI5_B82 (x(Ni) 0.65621) + GE2NI5 (x(Ni) 0.72) + GENI3_L12 (x(Ni) 0.75252)
GeNi-10Liu.tdb	1317.71	GE3NI5_B82 (x(Ni) 0.65621) + GE2NI5 (x(Ni) 0.72) + GENI3_L12 (x(Ni) 0.75252)
GeNi-10Liu.tdb	1264.81	LIQUID (x(Ni) 0.48929) + GE2NI3_B82 (x(Ni) 0.59274) + GE12NI19 (x(Ni) 0.59855)
GeNi-10Liu.tdb	1130.08	LIQUID (x(Ni) 0.43219) + GENI_B31 (x(Ni) 0.5) + GE2NI3_B82 (x(Ni) 0.55934)
GeNi-10Liu.tdb	1033.79	DIAMOND_A4 (x(Ni) 0) + LIQUID (x(Ni) 0.32573) + GENI_B31 (x(Ni) 0.5)
GeNi-10Liu.tdb	1033.79	DIAMOND_A4 (x(Ni) 0) + LIQUID (x(Ni) 0.32558) + GENI_B31 (x(Ni) 0.5)
GeNi-10Liu.tdb	788.25	GENI_B31 (x(Ni) 0.5) + GE2NI3_B82 (x(Ni) 0.59932) + GE12NI19 (x(Ni) 0.61272)
GeNi-10Liu.tdb	779.07	GE3NI5_B82 (x(Ni) 0.66094) + GENI2_C37 (x(Ni) 0.665) + GENI3_L12 (x(Ni) 0.75)
GeNi-10Liu.tdb	779.07	GE3NI5_B82 (x(Ni) 0.66094) + GENI2_C37 (x(Ni) 0.665) + GENI3_L12 (x(Ni) 0.75)
GeNi-10Liu.tdb	779.07	GE3NI5_B82 (x(Ni) 0.66094) + GENI2_C37 (x(Ni) 0.665) + GENI3_L12 (x(Ni) 0.75)
GeNi-10Liu.tdb	661.99	GE12NI19 (x(Ni) 0.61299) + GE3NI5_B82 (x(Ni) 0.62678) + GE3NI5_PRIME (x(Ni) 0.63)
GeNi-10Liu.tdb	655.72	GENI_B31 (x(Ni) 0.5) + GE12NI19 (x(Ni) 0.61299) + GE3NI5_PRIME (x(Ni) 0.63)
GeNi-10Liu.tdb	564.61	GE3NI5_PRIME (x(Ni) 0.63) + GE3NI5_B82 (x(Ni) 0.64826) + GENI2_C37 (x(Ni) 0.665)
GeNi-10Liu.tdb	564.61	GE3NI5_PRIME (x(Ni) 0.63) + GE3NI5_B82 (x(Ni) 0.64826) + GENI2_C37 (x(Ni) 0.665)
GeNi-12Jin.tdb	1397.89	L12_FCC (x(Ni) 0.76909) + LIQUID (x(Ni) 0.77205) + FCC_A1 (x(Ni) 0.86132)
GeNi-12Jin.tdb	1391.28	LIQUID (x(Ni) 0.72741) + GENI3_B32 (x(Ni) 0.744) + L12_FCC (x(Ni) 0.74868)
GeNi-12Jin.tdb	1379.53	LIQUID (x(Ni) 0.70916) + GE2NI5 (x(Ni) 0.72) + GENI3_B32 (x(Ni) 0.744)
GeNi-12Jin.tdb	1379.15	GE3NI5_B82 (x(Ni) 0.64163) + LIQUID (x(Ni) 0.70787) + GE2NI5 (x(Ni) 0.72)
GeNi-12Jin.tdb	1355.44	GE2NI5 (x(Ni) 0.72) + GENI3_B32 (x(Ni) 0.744) + L12_FCC (x(Ni) 0.7445)
GeNi-12Jin.tdb	1317.98	GE3NI5_B82 (x(Ni) 0.6426) + GE2NI5 (x(Ni) 0.72) + L12_FCC (x(Ni) 0.74397)
GeNi-12Jin.tdb	1128.76	LIQUID (x(Ni) 0.42964) + GENI_B31 (x(Ni) 0.5) + GE3NI5_B82 (x(Ni) 0.55273)
GeNi-12Jin.tdb	1032.01	DIAMOND_A4 (x(Ni) 0) + LIQUID (x(Ni) 0.34151) + GENI_B31 (x(Ni) 0.5)
GeNi-12Jin.tdb	1032.01	DIAMOND_A4 (x(Ni) 0) + LIQUID (x(Ni) 0.34145) + GENI_B31 (x(Ni) 0.5)
GeNi-12Jin.tdb	778.52	GE3NI5_B82 (x(Ni) 0.65143) + GENI2_C37 (x(Ni) 0.665) + L12_FCC (x(Ni) 0.74454)
GeNi-12Jin.tdb	658.63	GENI_B31 (x(Ni) 0.5) + GE3NI5_B82 (x(Ni) 0.61824) + GE3NI5_PRIME (x(Ni) 0.625)
GeNi-12Jin.tdb	561.48	GE3NI5_PRIME (x(Ni) 0.625) + GE3NI5_B82 (x(Ni) 0.64415) + GENI2_C37 (x(Ni) 0.665)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull GeNi-10Liu

Invariant reactions (literature)

Invariant reactions reported in the literature for the Ge–Ni system (83)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location	Quote
1459	congruent melting: L -> Ni5Ge3	Ni5Ge3: Ge 0.371	model	[1] Jin 2012 cites Liu 2010 doi	Table 3, p. 8, row 37 report
1458	congruent melting: L -> Ni5Ge3	Ni5Ge3: Ge 0.365	experimental	[1] Jin 2012 cites Dayer 1980 doi	Table 3, p. 8, row 36 report
1453	congruent melting: L -> Ni5Ge3	Ni5Ge3: Ge 0.373	model	[1] Jin 2012	Table 3, p. 8, row 35 report
1428.15	peritectic: L + βNi3Ge -> γNi3Ge	βNi3Ge: Ge 0.25, Ni 0.75; γNi3Ge: Ge 0.256, Ni 0.744	experimental	[2] Liu 2010 cites Ruttewit 1940	Table 3, p. 6, row 3 report
1428	peritectic: L + βNi3Ge -> γNi3Ge	βNi3Ge: Ge 0.25, Ni 0.75; γNi3Ge: Ge 0.256, Ni 0.744	experimental	[1] Jin 2012 cites Ruttewit 1940	Table 3, p. 8, row 10 report
1418.15	peritectic: L + βNi3Ge -> γNi3Ge	βNi3Ge: Ge 0.25, Ni 0.75; γNi3Ge: Ge 0.256, Ni 0.744	experimental	[2] Liu 2010 cites Ellner 1971 doi	Table 3, p. 6, row 4 report
1418	peritectic: L + βNi3Ge -> γNi3Ge	βNi3Ge: Ge 0.25, Ni 0.75; γNi3Ge: Ge 0.256, Ni 0.744	experimental	[1] Jin 2012 cites Ellner 1971 doi	Table 3, p. 8, row 9 report
1405	congruent melting: L -> βNi3Ge	L: Ge 0.24; βNi3Ge: Ge 0.25, Ni 0.75	experimental	[1] Jin 2012 cites Dayer 1980 doi	Table 3, p. 8, row 5 report
1399	eutectic: L -> (Ni) + βNi3Ge	L: Ge 0.232; (Ni): Ge 0.159; βNi3Ge: Ge 0.233	model	[1] Jin 2012 cites Liu 2010 doi	Table 3, p. 8, row 3 report
1399	congruent melting: L -> βNi3Ge	L: Ge 0.24; βNi3Ge: Ge 0.25, Ni 0.75	model	[1] Jin 2012	Table 3, p. 8, row 4 report
1399	congruent melting: L -> βNi3Ge	L: Ge 0.233; βNi3Ge: Ge 0.25, Ni 0.75	model	[1] Jin 2012 cites Liu 2010 doi	Table 3, p. 8, row 6 report
1398.85	eutectic: L -> (Ni) + βNi3Ge	L: Ge 0.232; (Ni): Ge 0.159; βNi3Ge: Ge 0.233	model	[2] Liu 2010	Table 3, p. 6, row 2 report
1398	eutectic: L -> (Ni) + βNi3Ge	L: Ge 0.228; (Ni): Ge 0.139; βNi3Ge: Ge 0.231	model	[1] Jin 2012	Table 3, p. 8, row 1 report
1397.15	eutectic: L -> (Ni) + βNi3Ge	L: Ge 0.23; (Ni): Ge 0.16; βNi3Ge: Ge 0.233	experimental	[2] Liu 2010 cites Dayer 1980 doi	Table 3, p. 6, row 1 report
1397	eutectic: L -> (Ni) + βNi3Ge	L: Ge 0.23; (Ni): Ge 0.16; βNi3Ge: Ge 0.233	experimental	[1] Jin 2012 cites Dayer 1980 doi	Table 3, p. 8, row 2 report
1391.15	peritectic: L + βNi3Ge -> γNi3Ge	L: Ge 0.273; βNi3Ge: Ge 0.25; γNi3Ge: Ge 0.256	experimental	[2] Liu 2010 cites Dayer 1980 doi	Table 3, p. 6, row 5 report
1391	peritectic: L + βNi3Ge -> γNi3Ge	L: Ge 0.273; βNi3Ge: Ge 0.251; γNi3Ge: Ge 0.256	model	[1] Jin 2012	Table 3, p. 8, row 7 report
1391	peritectic: L + βNi3Ge -> γNi3Ge	L: Ge 0.273; βNi3Ge: Ge 0.25; γNi3Ge: Ge 0.256	experimental	[1] Jin 2012 cites Dayer 1980 doi	Table 3, p. 8, row 8 report
1389.05	peritectic: L + βNi3Ge -> γNi3Ge	L: Ge 0.267; βNi3Ge: Ge 0.244; γNi3Ge: Ge 0.256	model	[2] Liu 2010	Table 3, p. 6, row 6 report
1389	peritectic: L + βNi3Ge -> γNi3Ge	L: Ge 0.267; βNi3Ge: Ge 0.244; γNi3Ge: Ge 0.256	model	[1] Jin 2012 cites Liu 2010 doi	Table 3, p. 8, row 11 report
1382	peritectic: L + γNi3Ge -> δNi5Ge2	L: Ge 0.28; γNi3Ge: Ge 0.256; δNi5Ge2: Ge 0.28	model	[1] Jin 2012 cites Liu 2010 doi	Table 3, p. 8, row 14 report
1381.65	peritectic: L + γNi3Ge -> δNi5Ge2	L: Ge 0.28; γNi3Ge: Ge 0.256; δNi5Ge2: Ge 0.28	model	[2] Liu 2010	Table 3, p. 6, row 8 report
1381.45	eutectic: L -> δNi5Ge2 + εNi5Ge3	L: Ge 0.284; δNi5Ge2: Ge 0.28; εNi5Ge3: Ge 0.346	model	[2] Liu 2010	Table 3, p. 6, row 16 report
1381	eutectic: L -> δNi5Ge2 + Ni5Ge3	L: Ge 0.284; δNi5Ge2: Ge 0.28; Ni5Ge3: Ge 0.346	model	[1] Jin 2012 cites Liu 2010 doi	Table 3, p. 8, row 25 report
1380	peritectic: L + γNi3Ge -> δNi5Ge2	L: Ge 0.291; γNi3Ge: Ge 0.256; δNi5Ge2: Ge 0.28	model	[1] Jin 2012	Table 3, p. 8, row 12 report
1379.15	eutectoid: γNi3Ge -> βNi3Ge + δNi5Ge2	γNi3Ge: Ge 0.256, Ni 0.744; βNi3Ge: Ge 0.25, Ni 0.75; δNi5Ge2: Ge 0.28, Ni 0.72	experimental	[2] Liu 2010 cites Ellner 1971 doi	Table 3, p. 6, row 9 report
1379	eutectoid: γNi3Ge -> βNi3Ge + δNi5Ge2	γNi3Ge: Ge 0.256, Ni 0.744; βNi3Ge: Ge 0.25, Ni 0.75; δNi5Ge2: Ge 0.28, Ni 0.72	experimental	[1] Jin 2012 cites Ellner 1971 doi	Table 3, p. 8, row 17 report
1379	eutectic: L -> δNi5Ge2 + Ni5Ge3	L: Ge 0.292; δNi5Ge2: Ge 0.28; Ni5Ge3: Ge 0.358	model	[1] Jin 2012	Table 3, p. 8, row 23 report
1375.15	peritectic: L + γNi3Ge -> δNi5Ge2	L: Ge 0.289; γNi3Ge: Ge 0.256; δNi5Ge2: Ge 0.28	experimental	[2] Liu 2010 cites Dayer 1980 doi	Table 3, p. 6, row 7 report
1375	peritectic: L + γNi3Ge -> δNi5Ge2	L: Ge 0.289; γNi3Ge: Ge 0.256; δNi5Ge2: Ge 0.28	experimental	[1] Jin 2012 cites Dayer 1980 doi	Table 3, p. 8, row 13 report
1372.15	eutectic: L -> δNi5Ge2 + εNi5Ge3	L: Ge 0.29; δNi5Ge2: Ge 0.28; εNi5Ge3: Ge 0.336	experimental	[2] Liu 2010 cites Dayer 1980 doi	Table 3, p. 6, row 15 report
1372	eutectic: L -> δNi5Ge2 + Ni5Ge3	L: Ge 0.29; δNi5Ge2: Ge 0.28; Ni5Ge3: Ge 0.336	experimental	[1] Jin 2012 cites Dayer 1980 doi	Table 3, p. 8, row 24 report
1357.15	eutectoid: γNi3Ge -> βNi3Ge + δNi5Ge2	γNi3Ge: Ge 0.256; βNi3Ge: Ge 0.246; δNi5Ge2: Ge 0.28	model	[2] Liu 2010	Table 3, p. 6, row 11 report
1357	eutectoid: γNi3Ge -> βNi3Ge + δNi5Ge2	γNi3Ge: Ge 0.256; βNi3Ge: Ge 0.246; δNi5Ge2: Ge 0.28	model	[1] Jin 2012 cites Liu 2010 doi	Table 3, p. 8, row 18 report
1355.15	eutectoid: γNi3Ge -> βNi3Ge + δNi5Ge2	γNi3Ge: Ge 0.256; βNi3Ge: Ge 0.25; δNi5Ge2: Ge 0.28	experimental	[2] Liu 2010 cites Dayer 1980 doi	Table 3, p. 6, row 10 report
1355	eutectoid: γNi3Ge -> βNi3Ge + δNi5Ge2	γNi3Ge: Ge 0.256; βNi3Ge: Ge 0.255; δNi5Ge2: Ge 0.28	model	[1] Jin 2012	Table 3, p. 8, row 15 report
1355	eutectoid: γNi3Ge -> βNi3Ge + δNi5Ge2	γNi3Ge: Ge 0.256; βNi3Ge: Ge 0.25; δNi5Ge2: Ge 0.28	experimental	[1] Jin 2012 cites Dayer 1980 doi	Table 3, p. 8, row 16 report
1348.15	eutectoid: δNi5Ge2 -> βNi3Ge + εNi5Ge3	δNi5Ge2: Ge 0.28, Ni 0.72; βNi3Ge: Ge 0.25, Ni 0.75; εNi5Ge3: Ge 0.375, Ni 0.625	experimental	[2] Liu 2010 cites Ellner 1971 doi	Table 3, p. 6, row 12 report
1348	eutectoid: δNi5Ge2 -> βNi3Ge + Ni5Ge3	δNi5Ge2: Ge 0.28, Ni 0.72; βNi3Ge: Ge 0.25, Ni 0.75; Ni5Ge3: Ge 0.375, Ni 0.625	experimental	[1] Jin 2012 cites Ellner 1971 doi	Table 3, p. 8, row 21 report
1325.15	peritectic: L + εNi5Ge3 -> Ni19Ge12	L: Ge 0.484; εNi5Ge3: Ge 0.38; Ni19Ge12: Ge 0.395	model	[2] Liu 2010	Table 3, p. 6, row 18 report
1323.15	peritectic: L + εNi5Ge3 -> Ni19Ge12	L: Ge 0.455; εNi5Ge3: Ge 0.388; Ni19Ge12: Ge 0.39	experimental	[2] Liu 2010 cites Ellner 1971 doi	Table 3, p. 6, row 17 report
1318.15	eutectoid: δNi5Ge2 -> βNi3Ge + εNi5Ge3	δNi5Ge2: Ge 0.28; βNi3Ge: Ge 0.25; εNi5Ge3: Ge 0.336	experimental	[2] Liu 2010 cites Dayer 1980 doi	Table 3, p. 6, row 13 report
1318	eutectoid: δNi5Ge2 -> βNi3Ge + Ni5Ge3	δNi5Ge2: Ge 0.28; βNi3Ge: Ge 0.247; Ni5Ge3: Ge 0.344	model	[1] Jin 2012 cites Liu 2010 doi	Table 3, p. 8, row 22 report
1318	eutectoid: δNi5Ge2 -> βNi3Ge + Ni5Ge3	δNi5Ge2: Ge 0.28; βNi3Ge: Ge 0.25; Ni5Ge3: Ge 0.336	experimental	[1] Jin 2012 cites Dayer 1980 doi	Table 3, p. 8, row 20 report
1318	eutectoid: δNi5Ge2 -> βNi3Ge + Ni5Ge3	δNi5Ge2: Ge 0.28; βNi3Ge: Ge 0.256; Ni5Ge3: Ge 0.357	model	[1] Jin 2012	Table 3, p. 8, row 19 report
1317.65	eutectoid: δNi5Ge2 -> βNi3Ge + εNi5Ge3	δNi5Ge2: Ge 0.28; βNi3Ge: Ge 0.247; εNi5Ge3: Ge 0.344	model	[2] Liu 2010	Table 3, p. 6, row 14 report
1264.75	peritectic: L + Ni19Ge12 -> Ni3Ge2	L: Ge 0.511; Ni19Ge12: Ge 0.401; Ni3Ge2: Ge 0.407	model	[2] Liu 2010	Table 3, p. 6, row 20 report
1263.15	peritectic: L + Ni19Ge12 -> Ni3Ge2	L: Ge 0.47; Ni19Ge12: Ge 0.415; Ni3Ge2: Ge 0.417	experimental	[2] Liu 2010 cites Ellner 1971 doi	Table 3, p. 6, row 19 report
1130.05	peritectic: L + Ni3Ge2 -> NiGe	L: Ge 0.568; Ni3Ge2: Ge 0.441; NiGe: Ge 0.5	model	[2] Liu 2010	Table 3, p. 6, row 22 report
1130	peritectic: εNi5Ge3 + L -> NiGe	εNi5Ge3: Ge 0.441; L: Ge 0.568; NiGe: Ge 0.5	model	[1] Jin 2012 cites Liu 2010 doi	Table 3, p. 8, row 40 report
1129	peritectic: εNi5Ge3 + L -> NiGe	εNi5Ge3: Ge 0.447; L: Ge 0.57; NiGe: Ge 0.5	model	[1] Jin 2012	Table 3, p. 8, row 38 report
1123.15	peritectic: L + ␧Ni5 Ge3 ↔ NiGe		experimental	[2] Liu 2010	p. 2 report	The NiGe phase, which is formed by the peritectic reaction L + ␧Ni5 Ge3 ↔ NiGe at 850 ◦ C, is only found with a stoichiometric composition 50 at.% Ge.
1123.15	peritectic: L + Ni3Ge2 -> NiGe	L: Ge 0.545; Ni3Ge2: Ge 0.45; NiGe: Ge 0.5	experimental	[2] Liu 2010 cites Dayer 1980 doi	Table 3, p. 6, row 21 report
1123	peritectic: εNi5Ge3 + L -> NiGe	εNi5Ge3: Ge 0.45; L: Ge 0.545; NiGe: Ge 0.5	experimental	[1] Jin 2012 cites Dayer 1980 doi	Table 3, p. 8, row 39 report
1048.15	eutectic: L -> NiGe + Ge	NiGe: Ge 0.5, Ni 0.5	experimental	[2] Liu 2010 cites Ruttewit 1940	Table 3, p. 6, row 23 report
1048	eutectic: L -> NiGe + (Ge)	NiGe: Ge 0.5, Ni 0.5	experimental	[1] Jin 2012 cites Ruttewit 1940	Table 3, p. 8, row 46 report
1035.15	eutectic: L -> NiGe + Ge	L: Ge 0.67; NiGe: Ge 0.5; Ge: Ge 1	experimental	[2] Liu 2010 cites Dayer 1980 doi	Table 3, p. 6, row 24 report
1035	eutectic: L -> NiGe + (Ge)	L: Ge 0.67; NiGe: Ge 0.5; (Ge): Ge 1	experimental	[1] Jin 2012 cites Dayer 1980 doi	Table 3, p. 8, row 45 report
1035	eutectic: L -> NiGe + (Ge)	L: Ge 0.674; NiGe: Ge 0.5; (Ge): Ge 1	model	[1] Jin 2012 cites Liu 2010 doi	Table 3, p. 8, row 47 report
1033.75	eutectic: L -> NiGe + Ge	L: Ge 0.674; NiGe: Ge 0.5; Ge: Ge 1	model	[2] Liu 2010	Table 3, p. 6, row 25 report
1032	eutectic: L -> NiGe + (Ge)	L: Ge 0.659; NiGe: Ge 0.5; (Ge): Ge 1	model	[1] Jin 2012	Table 3, p. 8, row 44 report
788.25	eutectoid: Ni3Ge2 -> Ni19Ge12 + NiGe	Ni3Ge2: Ge 0.401; Ni19Ge12: Ge 0.387; NiGe: Ge 0.5	model	[2] Liu 2010	Table 3, p. 6, row 27 report
788.15	eutectoid: Ni3Ge2 -> Ni19Ge12 + NiGe	Ni3Ge2: Ge 0.396; Ni19Ge12: Ge 0.392; NiGe: Ge 0.5	experimental	[2] Liu 2010 cites Ellner 1971 doi	Table 3, p. 6, row 26 report
779.15	peritectoid: εNi5Ge3 + βNi3Ge -> Ni2Ge	εNi5Ge3: Ge 0.345; βNi3Ge: Ge 0.25; Ni2Ge: Ge 0.335	experimental	[2] Liu 2010 cites Ellner 1971 doi	Table 3, p. 6, row 28 report
779.05	peritectoid: εNi5Ge3 + βNi3Ge -> Ni2Ge	εNi5Ge3: Ge 0.339; βNi3Ge: Ge 0.25; Ni2Ge: Ge 0.335	model	[2] Liu 2010	Table 3, p. 6, row 29 report
779	peritectoid: βNi3Ge + Ni5Ge3 -> Ni2Ge	βNi3Ge: Ge 0.255; Ni5Ge3: Ge 0.349; Ni2Ge: Ge 0.335	model	[1] Jin 2012	Table 3, p. 8, row 26 report
779	peritectoid: βNi3Ge + Ni5Ge3 -> Ni2Ge	βNi3Ge: Ge 0.25; Ni5Ge3: Ge 0.339; Ni2Ge: Ge 0.335	model	[1] Jin 2012 cites Liu 2010 doi	Table 3, p. 8, row 28 report
779	peritectoid: βNi3Ge + Ni5Ge3 -> Ni2Ge	βNi3Ge: Ge 0.25; Ni5Ge3: Ge 0.339; Ni2Ge: Ge 0.335	experimental	[1] Jin 2012 cites Ellner 1971 doi	Table 3, p. 8, row 27 report
671	congruent transformation: Ni5Ge3 -> ε′Ni5Ge3	Ni5Ge3: Ge 0.37; ε′Ni5Ge3: Ge 0.375, Ni 0.625	model	[1] Jin 2012 cites Liu 2010 doi	Table 3, p. 8, row 34 report
671	congruent transformation: Ni5Ge3 -> ε′Ni5Ge3	Ni5Ge3: Ge 0.374; ε′Ni5Ge3: Ge 0.375, Ni 0.625	experimental	[1] Jin 2012 cites Ellner 1971 doi	Table 3, p. 8, row 33 report
667.15	eutectoid: εNi5Ge3 -> Ni19Ge12 + ε'Ni5Ge3	εNi5Ge3: Ge 0.377; Ni19Ge12: Ge 0.38	experimental	[2] Liu 2010 cites Ellner 1971 doi	Table 3, p. 6, row 30 report
667	congruent transformation: Ni5Ge3 -> ε′Ni5Ge3	Ni5Ge3: Ge 0.375; ε′Ni5Ge3: Ge 0.375, Ni 0.625	model	[1] Jin 2012	Table 3, p. 8, row 32 report
661.95	eutectoid: εNi5Ge3 -> Ni19Ge12 + ε'Ni5Ge3	εNi5Ge3: Ge 0.373; Ni19Ge12: Ge 0.387	model	[2] Liu 2010	Table 3, p. 6, row 31 report
659	eutectoid: Ni5Ge3 -> ε′Ni5Ge3 + NiGe	Ni5Ge3: Ge 0.382; ε′Ni5Ge3: Ge 0.375; NiGe: Ge 0.5	model	[1] Jin 2012	Table 3, p. 8, row 41 report
656	eutectoid: Ni5Ge3 -> ε′Ni5Ge3 + NiGe	Ni5Ge3: Ge 0.387; ε′Ni5Ge3: Ge 0.37; NiGe: Ge 0.5	model	[1] Jin 2012 cites Liu 2010 doi	Table 3, p. 8, row 43 report
655.75	eutectoid: Ni19Ge12 -> NiGe + ε'Ni5Ge3	Ni19Ge12: Ge 0.387; NiGe: Ge 0.5; ε'Ni5Ge3: Ge 0.37	model	[2] Liu 2010	Table 3, p. 6, row 33 report
655.15	eutectoid: Ni19Ge12 -> NiGe + ε'Ni5Ge3	Ni19Ge12: Ge 0.382; NiGe: Ge 0.5; ε'Ni5Ge3: Ge 0.376	experimental	[2] Liu 2010 cites Ellner 1971 doi	Table 3, p. 6, row 32 report
655	eutectoid: Ni5Ge3 -> ε′Ni5Ge3 + NiGe	Ni5Ge3: Ge 0.382; ε′Ni5Ge3: Ge 0.376; NiGe: Ge 0.5	experimental	[1] Jin 2012 cites Ellner 1971 doi	Table 3, p. 8, row 42 report
565	eutectoid: Ni5Ge3 -> Ni2Ge + ε′Ni5Ge3	Ni5Ge3: Ge 0.352; Ni2Ge: Ge 0.335; ε′Ni5Ge3: Ge 0.37	model	[1] Jin 2012 cites Liu 2010 doi	Table 3, p. 8, row 31 report
564.65	eutectoid: εNi5Ge3 -> Ni2Ge + ε'Ni5Ge3	εNi5Ge3: Ge 0.352; Ni2Ge: Ge 0.335; ε'Ni5Ge3: Ge 0.37; ε′Ni5Ge3: Ge 0.37	model	[2] Liu 2010	Table 3, p. 6, row 35 report
563.15	eutectoid: εNi5Ge3 -> Ni2Ge + ε'Ni5Ge3	εNi5Ge3: Ge 0.363; Ni2Ge: Ge 0.335; ε'Ni5Ge3: Ge 0.37; ε′Ni5Ge3: Ge 0.37	experimental	[2] Liu 2010 cites Ellner 1971 doi	Table 3, p. 6, row 34 report
563	eutectoid: Ni5Ge3 -> Ni2Ge + ε′Ni5Ge3	Ni5Ge3: Ge 0.363; Ni2Ge: Ge 0.335; ε′Ni5Ge3: Ge 0.37	experimental	[1] Jin 2012 cites Ellner 1971 doi	Table 3, p. 8, row 30 report
562	eutectoid: Ni5Ge3 -> Ni2Ge + ε′Ni5Ge3	Ni5Ge3: Ge 0.356; Ni2Ge: Ge 0.335; ε′Ni5Ge3: Ge 0.375	model	[1] Jin 2012	Table 3, p. 8, row 29 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, Ge–Ni system (10)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location
Ni19Ge12 (Ni5Ge3)		-32.5 kJ/mol-atom	0	DFT			[1] Jin 2012	Table 1, p. 2, row 7 report
Ni2Ge		-33.1 kJ/mol-atom	0	DFT			[1] Jin 2012	Table 1, p. 2, row 4 report
Ni3Ge2 (Ni5Ge3)	Ge2Ni3	-34 kJ/mol-atom	298.15	experimental		-30.984 (oqmd-1797418)	[1] Jin 2012	Table 1, p. 2, row 13 report
NiGe		-34.9 kJ/mol-atom	0	DFT			[1] Jin 2012	Table 1, p. 2, row 10 report
NiGe	GeNi	-30 kJ/mol-atom	298.15	experimental	-29.425 (mp-aaaaabqh)	-30.317 (oqmd-646855)	[1] Jin 2012	Table 1, p. 2, row 14 report
βNi3Ge	GeNi3	-35 kJ/mol-atom	298.15	experimental	-27.983 (mp-aaaabfca)	-29.066 (oqmd-2169777)	[1] Jin 2012	Table 1, p. 2, row 11 report
βNi3Ge		-31.6 kJ/mol-atom	0	DFT			[1] Jin 2012	Table 1, p. 2, row 2 report
δNi5Ge2		-30.3 kJ/mol-atom	0	DFT			[1] Jin 2012	Table 1, p. 2, row 3 report
ε'Ni5Ge3		-33.8 kJ/mol-atom	0	DFT			[1] Jin 2012	Table 1, p. 2, row 6 report
εNi5Ge3 (Ni5Ge3)	Ge3Ni5	-37 kJ/mol-atom	298.15	experimental	-30.009 (mp-aaaaaccy)	-31.355 (oqmd-647287)	[1] Jin 2012	Table 1, p. 2, row 12 report

Other properties

Phase transition (3)

Phase transition, Ge–Ni system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	779.15 K	779.15	␧Ni5 Ge3 + ␤Ni3 Ge ↔ Ni2 Ge	experimental	[2] Liu 2010 cites Ellner 1971 doi	p. 1 report	The intermediate compound Ni2 Ge, reported as Ni2 Ge(r) phase in Ref. [12], is formed via the peritectoid reaction ␧Ni5 Ge3 + ␤Ni3 Ge ↔ Ni2 Ge at 506 ◦ C.
Phase transition	1405.15 K	1405.15	congruent transformation	experimental	[2] Liu 2010 cites Dayer 1980 doi	p. 2 report	Contradictory to the proposed peritectic formation of ␤Ni3 Ge at 1161 ◦ C by Ruttewit and Masing [14], Dayer and Feschotte [13] reported that ␤Ni3 Ge, with homogeneity range from 22.5 to 25 at.% Ge, melts congruently at 1132 ◦ C and undergoes the eutectic reaction L ↔ (Ni) + ␤Ni3 Ge at 1124 ◦ C.
Phase transition	1458.15 K	1458.15	congruent transformation	experimental	[2] Liu 2010 cites Dayer 1980 doi	p. 2 report	The non-stoichiometric compound ␧Ni5 Ge3 melts congruently at 1185 ◦ C [13], which is around 33 ◦ C lower than that reported by Ellner et al. [12].

Phase equilibrium (1)

Phase equilibrium, Ge–Ni system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase assemblage		1288	Liquid + Ni5Ge3 alloy: Ge 0.45	model	[1] Jin 2012	p. 9 report	It should be noted that Liquid and Ni5Ge3 coexist at 45 at% Ge and 1288 K, which will lead to an error in the measurement at this composition.

Sources

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

Shan Jin, Christian Leinenbach, Jiang Wang, Liliana I. Duarte, Simona Delsante, Gabriella Borzone et al., Thermodynamic study and re-assessment of the Ge-Ni system, Calphad 38, 23-34 (2012). doi:10.1016/j.calphad.2012.03.003
Y.Q. Liu, D.J. Ma, Y. Du, Thermodynamic modeling of the germanium–nickel system, Journal of Alloys and Compounds 491, 63-71 (2010). doi:10.1016/j.jallcom.2009.11.036

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}
}