Co–Ge system

151 accepted literature values from 3 paper(s) (experimental 55, model 96); 4 calculated phase diagram(s). 7 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	55
model	96

Accepted values by property group
Property group	Values
invariant reaction	77
phase transition	2
formation	55
crystal structure	17

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
CoGe-04Kor-LB.tdb	J. Korb, GTT-Technologies, unpublished work, 2004.	`526f50de552aafad130e5f8e677d5d594e977c91b7f8fb6928e640177ad3577d`	viewer · TDB · JSON
CoGe-13Don.tdb	S.S. Dong, S.G. Liu, X.M. Tao, F.H. Xiao, L.H. Huang, F. Yang, Y. He, Q. Chen, H.S. Liu, Z.P. Jin, Thermochim. Acta, 572, 94-100(2013). doi:10.1016/j.tca.2013.08.026	`160f80fc562e4adc1997702994ff940a74f7bce2be10fe08eb3b1a08ca3333b1`	viewer · TDB · JSON
CoGe-19Zen-ass.tdb	Y. Zeng, Y. Du, H. Li, P. Zhou, S. Liu, K. Cheng, B. Sundman, R. Schmid-Fetzer, L. Dreval, J. Alloys Compd., 793, 480-91(2019). doi:10.1016/j.jallcom.2018.12.205	`de75e3c47d8e84dbf939a028f92101d404527917ff7a8a705aabf8a3efe320ec`	viewer · TDB · JSON
CoGe-19Zen-sub.tdb	Y. Zeng, Y. Du, H. Li, P. Zhou, S. Liu, K. Cheng, B. Sundman, R. Schmid-Fetzer, L. Dreval, J. Alloys Compd., 793, 480-91(2019). doi:10.1016/j.jallcom.2018.12.205	`2837674f94c2f6612fe467d09fc153191e6036214b485c689de723f3b09c8135`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
CoGe-04Kor-LB.tdb	1383.74	FCC_A1 (x(Ge) 0.17235) + HCP_A3 (x(Ge) 0.18183) + LIQUID (x(Ge) 0.24467)
CoGe-04Kor-LB.tdb	1374.65	HCP_A3 (x(Ge) 0.18553) + LIQUID (x(Ge) 0.24983) + CO5GE3 (x(Ge) 0.375)
CoGe-04Kor-LB.tdb	1256.27	CO5GE3 (x(Ge) 0.375) + COGE (x(Ge) 0.5) + LIQUID (x(Ge) 0.60159)
CoGe-04Kor-LB.tdb	1256.27	CO5GE3 (x(Ge) 0.375) + COGE (x(Ge) 0.5) + LIQUID (x(Ge) 0.60141)
CoGe-04Kor-LB.tdb	1105.05	COGE (x(Ge) 0.5) + COGE2 (x(Ge) 0.66667) + LIQUID (x(Ge) 0.7718)
CoGe-04Kor-LB.tdb	1105.05	COGE (x(Ge) 0.5) + COGE2 (x(Ge) 0.66667) + LIQUID (x(Ge) 0.77222)
CoGe-04Kor-LB.tdb	1105.05	COGE (x(Ge) 0.5) + COGE2 (x(Ge) 0.66667) + LIQUID (x(Ge) 0.77236)
CoGe-04Kor-LB.tdb	1105.05	COGE (x(Ge) 0.5) + COGE2 (x(Ge) 0.66667) + LIQUID (x(Ge) 0.77181)
CoGe-04Kor-LB.tdb	1098.07	COGE2 (x(Ge) 0.66667) + LIQUID (x(Ge) 0.78967) + DIAMOND_A4 (x(Ge) 1)
CoGe-04Kor-LB.tdb	1098.07	COGE2 (x(Ge) 0.66667) + LIQUID (x(Ge) 0.78996) + DIAMOND_A4 (x(Ge) 1)
CoGe-04Kor-LB.tdb	1098.07	COGE2 (x(Ge) 0.66667) + LIQUID (x(Ge) 0.79035) + DIAMOND_A4 (x(Ge) 1)
CoGe-04Kor-LB.tdb	1098.07	COGE2 (x(Ge) 0.66667) + LIQUID (x(Ge) 0.79035) + DIAMOND_A4 (x(Ge) 1)
CoGe-04Kor-LB.tdb	1081.76	COGE (x(Ge) 0.5) + CO5GE7 (x(Ge) 0.58333) + COGE2 (x(Ge) 0.66667)
CoGe-04Kor-LB.tdb	1043.47	HCP_A3 (x(Ge) 0.15803) + CO3GE (x(Ge) 0.25) + CO5GE3 (x(Ge) 0.375)
CoGe-04Kor-LB.tdb	1043.47	HCP_A3 (x(Ge) 0.15805) + CO3GE (x(Ge) 0.25) + CO5GE3 (x(Ge) 0.375)
CoGe-04Kor-LB.tdb	1043.01	HCP_A3 (x(Ge) 0.15799) + CO3GE (x(Ge) 0.25) + CO5GE3 (x(Ge) 0.375)
CoGe-04Kor-LB.tdb	923.25	HCP_A3 (x(Ge) 0.14979) + CO3GE (x(Ge) 0.25) + CO5GE3 (x(Ge) 0.375)
CoGe-04Kor-LB.tdb	923.25	HCP_A3 (x(Ge) 0.14978) + CO3GE (x(Ge) 0.25) + CO5GE3 (x(Ge) 0.375)
CoGe-04Kor-LB.tdb	923.25	HCP_A3 (x(Ge) 0.14977) + CO3GE (x(Ge) 0.25) + CO5GE3 (x(Ge) 0.375)
CoGe-04Kor-LB.tdb	909.22	HCP_A3 (x(Ge) 0.1489) + CO5GE2 (x(Ge) 0.28571) + CO5GE3 (x(Ge) 0.375)
CoGe-04Kor-LB.tdb	909.22	HCP_A3 (x(Ge) 0.14891) + CO5GE2 (x(Ge) 0.28571) + CO5GE3 (x(Ge) 0.375)
CoGe-04Kor-LB.tdb	908.37	HCP_A3 (x(Ge) 0.14885) + CO5GE2 (x(Ge) 0.28571) + CO5GE3 (x(Ge) 0.375)
CoGe-04Kor-LB.tdb	655.89	HCP_A3 (x(Ge) 0.13469) + CO5GE2 (x(Ge) 0.28571) + CO5GE3 (x(Ge) 0.375)
CoGe-04Kor-LB.tdb	655.89	HCP_A3 (x(Ge) 0.13467) + CO5GE2 (x(Ge) 0.28571) + CO5GE3 (x(Ge) 0.375)
CoGe-04Kor-LB.tdb	655.89	HCP_A3 (x(Ge) 0.13467) + CO5GE2 (x(Ge) 0.28571) + CO5GE3 (x(Ge) 0.375)
CoGe-13Don.tdb	1395.36	FCC_A1 (x(Ge) 0.15426) + HCP_A3 (x(Ge) 0.19591) + LIQUID (x(Ge) 0.25102)
CoGe-13Don.tdb	1386.59	HCP_A3 (x(Ge) 0.20219) + LIQUID (x(Ge) 0.25808) + CO5GE3_B82 (x(Ge) 0.33898)
CoGe-13Don.tdb	1259.57	CO5GE3_B82 (x(Ge) 0.40549) + COGE (x(Ge) 0.49977) + LIQUID (x(Ge) 0.59425)
CoGe-13Don.tdb	1105.71	COGE (x(Ge) 0.52711) + COGE2 (x(Ge) 0.66667) + LIQUID (x(Ge) 0.74482)
CoGe-13Don.tdb	1103.81	COGE (x(Ge) 0.52691) + CO5GE7 (x(Ge) 0.58333) + COGE2 (x(Ge) 0.66667)
CoGe-13Don.tdb	1103.81	COGE (x(Ge) 0.5269) + CO5GE7 (x(Ge) 0.58333) + COGE2 (x(Ge) 0.66667)
CoGe-13Don.tdb	1087.69	COGE2 (x(Ge) 0.66667) + LIQUID (x(Ge) 0.78277) + DIAMOND_A4 (x(Ge) 1)
CoGe-13Don.tdb	1087.69	COGE2 (x(Ge) 0.66667) + LIQUID (x(Ge) 0.78292) + DIAMOND_A4 (x(Ge) 1)
CoGe-13Don.tdb	1040.3	HCP_A3 (x(Ge) 0.18711) + CO3GE (x(Ge) 0.25) + CO5GE3_B82 (x(Ge) 0.35532)
CoGe-13Don.tdb	927.83	HCP_A3 (x(Ge) 0.17707) + CO3GE (x(Ge) 0.25) + CO5GE3_B82 (x(Ge) 0.3622)
CoGe-13Don.tdb	927.83	HCP_A3 (x(Ge) 0.17705) + CO3GE (x(Ge) 0.25) + CO5GE3_B82 (x(Ge) 0.3622)
CoGe-13Don.tdb	924.45	HCP_A3 (x(Ge) 0.17652) + CO5GE2 (x(Ge) 0.28571) + CO5GE3_B82 (x(Ge) 0.36245)
CoGe-13Don.tdb	924.45	HCP_A3 (x(Ge) 0.1765) + CO5GE2 (x(Ge) 0.28571) + CO5GE3_B82 (x(Ge) 0.36246)
CoGe-13Don.tdb	655.66	CO5GE2 (x(Ge) 0.28571) + CO5GE3_C37 (x(Ge) 0.375) + CO5GE3_B82 (x(Ge) 0.38866)
CoGe-13Don.tdb	652.37	HCP_A3 (x(Ge) 0.15304) + CO5GE2 (x(Ge) 0.28571) + CO5GE3_C37 (x(Ge) 0.375)
CoGe-13Don.tdb	652.37	HCP_A3 (x(Ge) 0.15303) + CO5GE2 (x(Ge) 0.28571) + CO5GE3_C37 (x(Ge) 0.375)
CoGe-13Don.tdb	388.08	CO5GE3_C37 (x(Ge) 0.375) + CO5GE3_B82 (x(Ge) 0.41301) + COGE (x(Ge) 0.49057)
CoGe-19Zen-ass.tdb	1413.6	FCC_A1 (x(Ge) 0.13101) + HCP_A3 (x(Ge) 0.14975) + LIQUID (x(Ge) 0.24479)
CoGe-19Zen-ass.tdb	1401.9	HCP_A3 (x(Ge) 0.15432) + LIQUID (x(Ge) 0.25105) + CO5GE3_B82 (x(Ge) 0.34001)
CoGe-19Zen-ass.tdb	1262.24	CO5GE3_B82 (x(Ge) 0.40051) + COGE (x(Ge) 0.4952) + LIQUID (x(Ge) 0.56871)
CoGe-19Zen-ass.tdb	1122.01	COGE (x(Ge) 0.5282) + COGE2 (x(Ge) 0.66667) + LIQUID (x(Ge) 0.74221)
CoGe-19Zen-ass.tdb	1119.77	COGE (x(Ge) 0.52793) + CO5GE7 (x(Ge) 0.58333) + COGE2 (x(Ge) 0.66667)
CoGe-19Zen-ass.tdb	1103.33	COGE2 (x(Ge) 0.66667) + LIQUID (x(Ge) 0.78757) + DIAMOND_A4 (x(Ge) 1)
CoGe-19Zen-ass.tdb	1072.48	HCP_A3 (x(Ge) 0.14166) + L12_FCC (x(Ge) 0.24763) + CO5GE3_B82 (x(Ge) 0.33949)
CoGe-19Zen-ass.tdb	933.99	L12_FCC (x(Ge) 0.24857) + CO2GE_C37 (x(Ge) 0.33333) + CO5GE3_B82 (x(Ge) 0.33948)
CoGe-19Zen-ass.tdb	905.65	HCP_A3 (x(Ge) 0.12779) + L12_FCC (x(Ge) 0.24867) + CO2GE_C37 (x(Ge) 0.33333)
CoGe-19Zen-sub.tdb	1425.86	FCC_A1 (x(Ge) 0.1483) + HCP_A3 (x(Ge) 0.16893) + LIQUID (x(Ge) 0.23496)
CoGe-19Zen-sub.tdb	1393.44	HCP_A3 (x(Ge) 0.18589) + LIQUID (x(Ge) 0.25813) + CO5GE3_B82 (x(Ge) 0.34533)
CoGe-19Zen-sub.tdb	1276.8	CO5GE3_B82 (x(Ge) 0.41207) + COGE (x(Ge) 0.48736) + LIQUID (x(Ge) 0.56632)
CoGe-19Zen-sub.tdb	1108.78	COGE (x(Ge) 0.52883) + CO5GE7 (x(Ge) 0.58333) + LIQUID (x(Ge) 0.75179)
CoGe-19Zen-sub.tdb	1108.24	CO5GE7 (x(Ge) 0.58333) + COGE2 (x(Ge) 0.66667) + LIQUID (x(Ge) 0.75243)
CoGe-19Zen-sub.tdb	1091.84	COGE2 (x(Ge) 0.66667) + LIQUID (x(Ge) 0.78638) + DIAMOND_A4 (x(Ge) 1)
CoGe-19Zen-sub.tdb	1091.84	COGE2 (x(Ge) 0.66667) + LIQUID (x(Ge) 0.78662) + DIAMOND_A4 (x(Ge) 1)
CoGe-19Zen-sub.tdb	1091.84	COGE2 (x(Ge) 0.66667) + LIQUID (x(Ge) 0.78705) + DIAMOND_A4 (x(Ge) 1)
CoGe-19Zen-sub.tdb	1052.75	HCP_A3 (x(Ge) 0.17028) + L12_FCC (x(Ge) 0.25008) + CO5GE3_B82 (x(Ge) 0.34614)
CoGe-19Zen-sub.tdb	894	HCP_A3 (x(Ge) 0.15677) + L12_FCC (x(Ge) 0.2499) + CO5GE3_B82 (x(Ge) 0.34733)
CoGe-19Zen-sub.tdb	890.4	HCP_A3 (x(Ge) 0.15649) + CO2GE_C37 (x(Ge) 0.33333) + CO5GE3_B82 (x(Ge) 0.34737)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull CoGe-04Kor-LB · CALPHAD hull CoGe-13Don · CALPHAD hull CoGe-19Zen-sub

Invariant reactions (literature)

Invariant reactions reported in the literature for the Co–Ge system (77)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1768.15	congruent melting: L -> αCo	αCo: Ge 0	model	[1] Ansara 1991	Table 1, p. 5, row 1 report
1483.15	congruent melting: L -> βCo5Ge3	L: Ge 0.375; βCo5Ge3: Ge 0.375	model	[1] Ansara 1991	Table 1, p. 5, row 2 report
1483	congruent melting: L <-> βCo5Ge3	L: Ge 0.375; βCo5Ge3: Ge 0.375	experimental	[2] Zeng 2019 cites Dayer 1980 doi	Table 2, p. 3, row 1 report
1477	congruent melting: L <-> βCo5Ge3	L: Ge 0.348; βCo5Ge3: Ge 0.348	model	[2] Zeng 2019	Table 2, p. 3, row 4 report
1473	congruent melting: L <-> βCo5Ge3	L: Ge 0.345; βCo5Ge3: Ge 0.345	experimental	[2] Zeng 2019 cites Pfisterer 1949	Table 2, p. 3, row 2 report
1457	congruent melting: L <-> βCo5Ge3	L: Ge 0.355; βCo5Ge3: Ge 0.355	model	[2] Zeng 2019	Table 2, p. 3, row 3 report
1426	peritectic: L + α(Co) <-> ε(Co)	L: Ge 0.235; α(Co): Ge 0.148; ε(Co): Ge 0.169	model	[2] Zeng 2019	Table 2, p. 3, row 7 report
1414	peritectic: L + α(Co) <-> ε(Co)	L: Ge 0.245; α(Co): Ge 0.131; ε(Co): Ge 0.15	model	[2] Zeng 2019	Table 2, p. 3, row 8 report
1406	peritectic: L + α(Co) <-> ε(Co)		experimental	[2] Zeng 2019 cites Zeng 2017 doi	Table 2, p. 3, row 6 report
1402	eutectic: L <-> ε(Co) + βCo5Ge3	L: Ge 0.251; ε(Co): Ge 0.154; βCo5Ge3: Ge 0.34	model	[2] Zeng 2019	Table 2, p. 3, row 13 report
1396.15	peritectic: L + (αCo) -> (εCo)	L: Ge 0.252; (αCo): Ge 0.165; (εCo): Ge 0.175	model	[1] Ansara 1991	Table 1, p. 5, row 3 report
1396	peritectic: L + α(Co) <-> ε(Co)	L: Ge 0.252; α(Co): Ge 0.165; ε(Co): Ge 0.175	experimental	[2] Zeng 2019 cites Dayer 1980 doi	Table 2, p. 3, row 5 report
1396	peritectic: L + α(Co) -> ε(Co)	L: Ge 0.252; α(Co): Ge 0.165; ε(Co): Ge 0.175	model	[3] Dong 2013 cites Ishida 1991 doi	Table 7, p. 6, row 3 report
1395	peritectic: L + α(Co) -> ε(Co)	L: Ge 0.251; α(Co): Ge 0.154; ε(Co): Ge 0.196	model	[3] Dong 2013	Table 7, p. 6, row 5 report
1393	eutectic: L <-> ε(Co) + βCo5Ge3	L: Ge 0.258; ε(Co): Ge 0.186; βCo5Ge3: Ge 0.345	model	[2] Zeng 2019	Table 2, p. 3, row 12 report
1393	peritectic: L + α(Co) -> ε(Co)		experimental	[3] Dong 2013 cites Enoki 1990 doi	Table 7, p. 6, row 4 report
1391	eutectic: L <-> ε(Co) + βCo5Ge3	βCo5Ge3: Co 0.625, Ge 0.375	experimental	[2] Zeng 2019 cites Zeng 2017 doi	Table 2, p. 3, row 11 report
1386	eutectic: L -> ε(Co) + βCo5Ge3	L: Ge 0.258; ε(Co): Ge 0.202; βCo5Ge3: Ge 0.339	model	[3] Dong 2013	Table 7, p. 6, row 9 report
1383	eutectic: L <-> ε(Co) + βCo5Ge3	L: Ge 0.255; ε(Co): Ge 0.18; βCo5Ge3: Ge 0.325	experimental	[2] Zeng 2019 cites Pfisterer 1949	Table 2, p. 3, row 9 report
1383	eutectic: L -> ε(Co) + βCo5Ge3	βCo5Ge3: Ge 0.375	experimental	[3] Dong 2013 cites Pfisterer 1949 doi	Table 7, p. 6, row 7 report
1381.15	eutectic: L -> (εCo) + βCo5Ge3	L: Ge 0.255; (εCo): Ge 0.18; βCo5Ge3: Ge 0.325	model	[1] Ansara 1991	Table 1, p. 5, row 4 report
1381	eutectic: L -> ε(Co) + βCo5Ge3	L: Ge 0.255; ε(Co): Ge 0.18; βCo5Ge3: Ge 0.325	model	[3] Dong 2013 cites Ishida 1991 doi	Table 7, p. 6, row 6 report
1381	eutectic: L <-> ε(Co) + βCo5Ge3	L: Ge 0.255; ε(Co): Ge 0.18; βCo5Ge3: Ge 0.325	experimental	[2] Zeng 2019 cites Dayer 1980 doi	Table 2, p. 3, row 10 report
1378	eutectic: L -> ε(Co) + βCo5Ge3	βCo5Ge3: Ge 0.375	experimental	[3] Dong 2013 cites Enoki 1990 doi	Table 7, p. 6, row 8 report
1277	peritectic: L + βCo5Ge3 <-> CoGe	L: Ge 0.566; βCo5Ge3: Ge 0.412; CoGe: Ge 0.487	model	[2] Zeng 2019	Table 2, p. 3, row 16 report
1263	peritectic: L + βCo5Ge3 <-> CoGe	βCo5Ge3: Co 0.625, Ge 0.375; CoGe: Co 0.5, Ge 0.5	experimental	[2] Zeng 2019 cites Zeng 2017 doi	Table 2, p. 3, row 15 report
1262	peritectic: L + βCo5Ge3 <-> CoGe	L: Ge 0.569; βCo5Ge3: Ge 0.401; CoGe: Ge 0.495	model	[2] Zeng 2019	Table 2, p. 3, row 17 report
1260	peritectic: L + βCo5Ge3 -> CoGe	L: Ge 0.594; βCo5Ge3: Ge 0.405; CoGe: Ge 0.5	model	[3] Dong 2013	Table 7, p. 6, row 12 report
1258.15	peritectic: βCo5Ge3 + L -> CoGe	βCo5Ge3: Ge 0.43; L: Ge 0.525; CoGe: Ge 0.5	model	[1] Ansara 1991	Table 1, p. 5, row 5 report
1258	peritectic: L + βCo5Ge3 -> CoGe	L: Ge 0.525; βCo5Ge3: Ge 0.43; CoGe: Ge 0.5	model	[3] Dong 2013 cites Ishida 1991 doi	Table 7, p. 6, row 10 report
1256.45	congruent melting: L -> Ge	Ge: Ge 1	model	[1] Ansara 1991	Table 1, p. 5, row 6 report
1255	peritectic: L + βCo5Ge3 -> CoGe	βCo5Ge3: Ge 0.375; CoGe: Ge 0.5	experimental	[3] Dong 2013 cites Pfisterer 1949 doi	Table 7, p. 6, row 11 report
1255	peritectic: L + βCo5Ge3 <-> CoGe	L: Ge 0.525; βCo5Ge3: Ge 0.43; CoGe: Ge 0.5	experimental	[2] Zeng 2019 cites Pfisterer 1949	Table 2, p. 3, row 14 report
1123	peritectic: L + CoGe <-> CoGe2	L: Ge 0.741; CoGe: Ge 0.528; CoGe2: Ge 0.667	model	[2] Zeng 2019	Table 2, p. 3, row 22 report
1115	peritectic: L + CoGe -> CoGe2	CoGe: Ge 0.5; CoGe2: Ge 0.666667	experimental	[3] Dong 2013 cites Pfisterer 1949 doi	Table 7, p. 6, row 14 report
1115	peritectic: L + CoGe <-> CoGe2	L: Ge 0.71; CoGe: Ge 0.5; CoGe2: Ge 0.667	experimental	[2] Zeng 2019 cites Pfisterer 1949	Table 2, p. 3, row 18 report
1112	peritectic: L + CoGe <-> CoGe2	CoGe: Co 0.5, Ge 0.5; CoGe2: Co 0.333333, Ge 0.666667	experimental	[2] Zeng 2019 cites Zeng 2017 doi	Table 2, p. 3, row 20 report
1109	peritectic: L + CoGe <-> CoGe2	L: Ge 0.751; CoGe: Ge 0.529; CoGe2: Ge 0.667	model	[2] Zeng 2019	Table 2, p. 3, row 21 report
1107	peritectic: L + CoGe -> CoGe2	L: Ge 0.744; CoGe: Ge 0.527; CoGe2: Ge 0.667	model	[3] Dong 2013	Table 7, p. 6, row 15 report
1105.15	peritectic: CoGe + L -> CoGe2	CoGe: Ge 0.525; L: Ge 0.71; CoGe2: Ge 0.667	model	[1] Ansara 1991	Table 1, p. 5, row 7 report
1105	peritectic: L + CoGe <-> CoGe2	CoGe: Co 0.5, Ge 0.5; CoGe2: Co 0.333333, Ge 0.666667	experimental	[2] Zeng 2019 cites Dayer 1980 doi	Table 2, p. 3, row 19 report
1105	peritectic: L + CoGe -> CoGe2	L: Ge 0.71; CoGe: Ge 0.525; CoGe2: Ge 0.667	model	[3] Dong 2013 cites Ishida 1991 doi	Table 7, p. 6, row 13 report
1104	eutectic: L <-> CoGe2 + (Ge)	L: Ge 0.788; CoGe2: Ge 0.667; (Ge): Ge 1	model	[2] Zeng 2019	Table 2, p. 3, row 27 report
1099	eutectic: L <-> CoGe2 + (Ge)	CoGe2: Co 0.333333, Ge 0.666667	experimental	[2] Zeng 2019 cites Zeng 2017 doi	Table 2, p. 3, row 25 report
1092	eutectic: L <-> CoGe2 + (Ge)	L: Ge 0.787; CoGe2: Ge 0.667; (Ge): Ge 1	model	[2] Zeng 2019	Table 2, p. 3, row 26 report
1090.15	eutectic: L -> CoGe2 + (Ge)	L: Ge 0.73; CoGe2: Ge 0.667; (Ge): Ge 1	model	[1] Ansara 1991	Table 1, p. 5, row 8 report
1090	eutectic: L -> CoGe2 + (Ge)	L: Ge 0.73; CoGe2: Ge 0.667; (Ge): Ge 1	model	[3] Dong 2013 cites Ishida 1991 doi	Table 7, p. 6, row 16 report
1090	eutectic: L <-> CoGe2 + (Ge)	L: Ge 0.75; CoGe2: Ge 0.665; (Ge): Ge 1	experimental	[2] Zeng 2019 cites Dayer 1980 doi	Table 2, p. 3, row 24 report
1089	peritectoid: CoGe2 + CoGe <-> Co5Ge7	CoGe2: Co 0.333333, Ge 0.666667; CoGe: Co 0.5, Ge 0.5; Co5Ge7: Co 0.416667, Ge 0.583333	experimental	[2] Zeng 2019 cites Zeng 2017 doi	Table 2, p. 3, row 29 report
1088	eutectic: L -> CoGe2 + (Ge)	L: Ge 0.783; CoGe2: Ge 0.667; (Ge): Ge 1	model	[3] Dong 2013	Table 7, p. 6, row 18 report
1083	eutectic: L -> CoGe2 + (Ge)	CoGe2: Ge 0.666667; (Ge): Ge 1	experimental	[3] Dong 2013 cites Pfisterer 1949 doi	Table 7, p. 6, row 17 report
1083	eutectic: L <-> CoGe2 + (Ge)	L: Ge 0.73; CoGe2: Ge 0.667; (Ge): Ge 1	experimental	[2] Zeng 2019 cites Pfisterer 1949	Table 2, p. 3, row 23 report
1080	peritectoid: CoGe2 + CoGe <-> Co5Ge7	CoGe2: Ge 0.667; CoGe: Ge 0.523; Co5Ge7: Ge 0.583	model	[2] Zeng 2019	Table 2, p. 3, row 31 report
1079.15	peritectoid: CoGe + CoGe2 -> Co5Ge7	CoGe: Ge 0.52; CoGe2: Ge 0.667; Co5Ge7: Ge 0.583	model	[1] Ansara 1991	Table 1, p. 5, row 9 report
1079	peritectoid: CoGe + CoGe2 -> Co5Ge7	CoGe: Ge 0.52; CoGe2: Ge 0.667; Co5Ge7: Ge 0.583	model	[3] Dong 2013 cites Ishida 1991 doi	Table 7, p. 6, row 19 report
1079	peritectoid: CoGe + CoGe2 -> Co5Ge7	CoGe: Ge 0.524; CoGe2: Ge 0.667; Co5Ge7: Ge 0.583	model	[3] Dong 2013	Table 7, p. 6, row 20 report
1079	peritectoid: CoGe2 + CoGe <-> Co5Ge7	CoGe2: Ge 0.665; CoGe: Ge 0.5; Co5Ge7: Ge 0.58	experimental	[2] Zeng 2019 cites Dayer 1980 doi	Table 2, p. 3, row 28 report
1078	peritectoid: CoGe2 + CoGe <-> Co5Ge7	CoGe2: Ge 0.667; CoGe: Ge 0.525; Co5Ge7: Ge 0.583	model	[2] Zeng 2019	Table 2, p. 3, row 30 report
1072	eutectoid: ε(Co) + βCo5Ge3 <-> Co3Ge	ε(Co): Ge 0.142; βCo5Ge3: Ge 0.339; Co3Ge: Ge 0.248	model	[2] Zeng 2019	Table 2, p. 3, row 34 report
1053	eutectoid: ε(Co) + βCo5Ge3 <-> Co3Ge	ε(Co): Ge 0.17; βCo5Ge3: Ge 0.346; Co3Ge: Ge 0.25	model	[2] Zeng 2019	Table 2, p. 3, row 33 report
1043.15	peritectoid: (εCo) + βCo5Ge3 -> Co3Ge	(εCo): Ge 0.17; βCo5Ge3: Ge 0.22; Co3Ge: Ge 0.345	model	[1] Ansara 1991	Table 1, p. 5, row 10 report
1043	peritectoid: ε(Co) + βCo5Ge3 -> Co3Ge	ε(Co): Ge 0.17; βCo5Ge3: Ge 0.345; Co3Ge: Ge 0.22	model	[3] Dong 2013 cites Ishida 1991 doi	Table 7, p. 6, row 21 report
1043	peritectoid: ε(Co) + βCo5Ge3 -> Co3Ge	ε(Co): Ge 0.187; βCo5Ge3: Ge 0.355; Co3Ge: Ge 0.25	model	[3] Dong 2013	Table 7, p. 6, row 22 report
1043	eutectoid: ε(Co) + βCo5Ge3 <-> Co3Ge	ε(Co): Ge 0.17; βCo5Ge3: Ge 0.345; Co3Ge: Ge 0.22	experimental	[2] Zeng 2019 cites Dayer 1980 doi	Table 2, p. 3, row 32 report
958	peritectoid: Co3Ge + βCo5Ge3 <-> Co2Ge	Co3Ge: Ge 0.248; βCo5Ge3: Ge 0.339; Co2Ge: Ge 0.333	model	[2] Zeng 2019	Table 2, p. 3, row 36 report
927	eutectoid: Co3Ge -> ε(Co) + βCo5Ge3	Co3Ge: Ge 0.25; ε(Co): Ge 0.177; βCo5Ge3: Ge 0.362	model	[3] Dong 2013	Table 7, p. 6, row 24 report
923.15	eutectoid: Co3Ge -> (εCo) + βCo5Ge3	Co3Ge: Ge 0.22; (εCo): Ge 0.168; βCo5Ge3: Ge 0.348	model	[1] Ansara 1991	Table 1, p. 5, row 11 report
923	eutectoid: Co3Ge -> ε(Co) + βCo5Ge3	Co3Ge: Ge 0.22; ε(Co): Ge 0.168; βCo5Ge3: Ge 0.348	model	[3] Dong 2013 cites Ishida 1991 doi	Table 7, p. 6, row 23 report
920	eutectoid: Co3Ge <-> ε(Co) + Co2Ge	Co3Ge: Ge 0.248; ε(Co): Ge 0.129; Co2Ge: Ge 0.333	model	[2] Zeng 2019	Table 2, p. 3, row 38 report
912	peritectoid: ε(Co) + βCo5Ge3 -> Co5Ge2	ε(Co): Ge 0.175; βCo5Ge3: Ge 0.363; Co5Ge2: Ge 0.286	model	[3] Dong 2013	Table 7, p. 6, row 26 report
909.15	peritectoid: (εCo) + βCo5Ge3 -> Co5Ge2	(εCo): Ge 0.167; βCo5Ge3: Ge 0.286; Co5Ge2: Ge 0.35	model	[1] Ansara 1991	Table 1, p. 5, row 12 report
909	peritectoid: Co3Ge + βCo5Ge3 <-> Co2Ge	Co3Ge: Ge 0.25; βCo5Ge3: Ge 0.347; Co2Ge: Ge 0.333	model	[2] Zeng 2019	Table 2, p. 3, row 35 report
909	peritectoid: ε(Co) + βCo5Ge3 -> Co5Ge2	ε(Co): Ge 0.167; βCo5Ge3: Ge 0.35; Co5Ge2: Ge 0.286	model	[3] Dong 2013 cites Ishida 1991 doi	Table 7, p. 6, row 25 report
901	eutectoid: Co3Ge <-> ε(Co) + Co2Ge	Co3Ge: Ge 0.25; ε(Co): Ge 0.157; Co2Ge: Ge 0.333	model	[2] Zeng 2019	Table 2, p. 3, row 37 report
656	eutectoid: Co5Ge2 -> ε(Co) + βCo5Ge3	Co5Ge2: Ge 0.286; ε(Co): Ge 0.153; βCo5Ge3: Ge 0.388	model	[3] Dong 2013	Table 7, p. 6, row 27 report
655.15	eutectoid: Co5Ge2 -> (εCo) + (αCo5Ge3)	Co5Ge2: Ge 0.286; (εCo): Ge 0.16; (αCo5Ge3): Ge 0.365	model	[1] Ansara 1991	Table 1, p. 5, row 14 report
655	peritectoid: ε(Co) + βCo5Ge3 -> αCo5G3	ε(Co): Ge 0.153; βCo5Ge3: Ge 0.388; αCo5G3: Ge 0.375	model	[3] Dong 2013	Table 7, p. 6, row 28 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, Co–Ge system (55)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location
CoGe		-22.758 per mol-atom	1060	model			[2] Zeng 2019	Table 4, p. 9, row 24 report
CoGe		-21.847 per mol-atom	1060	model			[2] Zeng 2019	Table 4, p. 9, row 23 report
CoGe	CoGe	-21.752 kJ/mol-atom	1060	model	-20.979 (mp-aaaabfkv)	-22.291 (oqmd-1790918)	[3] Dong 2013	Table 6, p. 5, row 16 report
CoGe	CoGe	-21.394 kJ/mol-atom	298.15	model	-20.979 (mp-aaaabfkv)	-22.291 (oqmd-1790918)	[3] Dong 2013	Table 5, p. 4, row 5 report
CoGe	CoGe	-20.991 kJ/mol-atom	298.15	model	-20.979 (mp-aaaabfkv)	-22.291 (oqmd-1790918)	[3] Dong 2013	Table 5, p. 4, row 5 report
CoGe	CoGe	-15.943 kJ/mol-atom	1060	experimental	-20.979 (mp-aaaabfkv)	-22.291 (oqmd-1790918)	[3] Dong 2013 cites Predel 1979 doi	Table 6, p. 5, row 15 report
CoGe		-15.943 per mol-atom ± 946	1060	experimental			[2] Zeng 2019 cites Predel 1979 doi	Table 4, p. 9, row 22 report
CoGe2		-16.579 per mol-atom	1060	model			[2] Zeng 2019	Table 4, p. 9, row 27 report
CoGe2		-16.241 per mol-atom	1060	model			[2] Zeng 2019	Table 4, p. 9, row 26 report
CoGe2	CoGe2	-15.836 kJ/mol-atom	1060	model	-14.777 (mp-aaaabslp)	-15.207 (oqmd-647051)	[3] Dong 2013	Table 6, p. 5, row 18 report
CoGe2	CoGe2	-15.343 kJ/mol-atom	298.15	model	-14.777 (mp-aaaabslp)	-15.207 (oqmd-647051)	[3] Dong 2013	Table 5, p. 4, row 3 report
CoGe2	CoGe2	-14.874 kJ/mol-atom	298.15	model	-14.777 (mp-aaaabslp)	-15.207 (oqmd-647051)	[3] Dong 2013	Table 5, p. 4, row 3 report
CoGe2		-11.8 per mol-atom ± 1274	1060	experimental			[2] Zeng 2019 cites Predel 1979 doi	Table 4, p. 9, row 25 report
CoGe2	CoGe2	-11.8 kJ/mol-atom	1060	experimental	-14.777 (mp-aaaabslp)	-15.207 (oqmd-647051)	[3] Dong 2013 cites Predel 1979 doi	Table 6, p. 5, row 17 report
α(Co)		-4.022 per mol-atom	1060	model			[2] Zeng 2019	Table 4, p. 9, row 8 report
α(Co)		-3.914 per mol-atom	1060	model			[2] Zeng 2019	Table 4, p. 9, row 9 report
α(Co)		-3.252 per mol-atom	1060	model			[2] Zeng 2019	Table 4, p. 9, row 5 report
α(Co)		-3.176 per mol-atom	1060	model			[2] Zeng 2019	Table 4, p. 9, row 6 report
α(Co)		-2.797 kJ/mol-atom	1060	model			[3] Dong 2013	Table 6, p. 5, row 6 report
α(Co)		-2.448 kJ/mol-atom	1060	model			[3] Dong 2013	Table 6, p. 5, row 4 report
α(Co)		-2.355 per mol-atom ± 701	1060	experimental			[2] Zeng 2019 cites Predel 1979 doi	Table 4, p. 9, row 7 report
α(Co)		-2.355 kJ/mol-atom	1060	experimental			[3] Dong 2013 cites Predel 1979 doi	Table 6, p. 5, row 5 report
α(Co)		-1.969 per mol-atom	1060	model			[2] Zeng 2019	Table 4, p. 9, row 2 report
α(Co)		-1.927 per mol-atom	1060	model			[2] Zeng 2019	Table 4, p. 9, row 3 report
α(Co)		-1.71 kJ/mol-atom	1060	experimental			[3] Dong 2013 cites Predel 1979 doi	Table 6, p. 5, row 3 report
α(Co)		-1.71 per mol-atom ± 223	1060	experimental			[2] Zeng 2019 cites Predel 1979 doi	Table 4, p. 9, row 4 report
α(Co)		-1.327 kJ/mol-atom	1060	model			[3] Dong 2013	Table 6, p. 5, row 2 report
α(Co)		-1.089 per mol-atom ± 149	1060	experimental			[2] Zeng 2019 cites Predel 1979 doi	Table 4, p. 9, row 1 report
α(Co)		-1.089 kJ/mol-atom	1060	experimental			[3] Dong 2013 cites Predel 1979 doi	Table 6, p. 5, row 1 report
α(Co) + βCo5Ge3		-15.844 per mol-atom	1060	model			[2] Zeng 2019	Table 4, p. 9, row 12 report
α(Co) + βCo5Ge3		-13.797 per mol-atom	1060	model			[2] Zeng 2019	Table 4, p. 9, row 11 report
α(Co) + βCo5Ge3		-13.697 per mol-atom ± 870	1060	experimental			[2] Zeng 2019 cites Predel 1979 doi	Table 4, p. 9, row 10 report
α(Co) + βCo5Ge3	Co5Ge3	-13.697 kJ/mol-atom	1060	experimental		-16.532 (oqmd-1437178)	[3] Dong 2013 cites Predel 1979 doi	Table 6, p. 5, row 7 report
α(Co) + βCo5Ge3	Co5Ge3	-13.161 kJ/mol-atom	1060	model		-16.532 (oqmd-1437178)	[3] Dong 2013	Table 6, p. 5, row 8 report
α(Co)+βCo5Ge3	Co5Ge3	-15.844 kJ/mol-atom	1060	model		-16.532 (oqmd-1437178)	[2] Zeng 2019	Table 4, p. 9, row 12 report
α(Co)+βCo5Ge3	Co5Ge3	-13.797 kJ/mol-atom	1060	model		-16.532 (oqmd-1437178)	[2] Zeng 2019	Table 4, p. 9, row 11 report
α(Co)+βCo5Ge3	Co5Ge3	-13.697 kJ/mol-atom ± 0.87	1060	experimental		-16.532 (oqmd-1437178)	[2] Zeng 2019 cites Predel 1979 doi	Table 4, p. 9, row 10 report
βCo5Ge3		-20.136 per mol-atom ± 1179	1060	experimental			[2] Zeng 2019 cites Predel 1979 doi	Table 4, p. 9, row 19 report
βCo5Ge3	Co5Ge3	-20.136 kJ/mol-atom	1060	experimental		-16.532 (oqmd-1437178)	[3] Dong 2013 cites Predel 1979 doi	Table 6, p. 5, row 13 report
βCo5Ge3	Co5Ge3	-19.6 kJ/mol-atom	298.15	experimental		-16.532 (oqmd-1437178)	[3] Dong 2013 cites Kleppa 1990	Table 5, p. 4, row 6 report
βCo5Ge3	Co5Ge3	-19 kJ/mol-atom	298.15	experimental		-16.532 (oqmd-1437178)	[3] Dong 2013 cites Niessen 1983 doi	Table 5, p. 4, row 7 report
βCo5Ge3	Co5Ge3	-18.665 kJ/mol-atom	1060	model		-16.532 (oqmd-1437178)	[3] Dong 2013	Table 6, p. 5, row 14 report
βCo5Ge3		-18.381 per mol-atom	1060	model			[2] Zeng 2019	Table 4, p. 9, row 18 report
βCo5Ge3	Co5Ge3	-18.279 kJ/mol-atom	298.15	model		-16.532 (oqmd-1437178)	[3] Dong 2013	Table 5, p. 4, row 8 report
βCo5Ge3		-18.16 per mol-atom	1060	model			[2] Zeng 2019	Table 4, p. 9, row 20 report
βCo5Ge3		-17.237 per mol-atom ± 845	1060	experimental			[2] Zeng 2019 cites Predel 1979 doi	Table 4, p. 9, row 16 report
βCo5Ge3	Co5Ge3	-17.237 kJ/mol-atom	1060	experimental		-16.532 (oqmd-1437178)	[3] Dong 2013 cites Predel 1979 doi	Table 6, p. 5, row 11 report
βCo5Ge3		-17.185 per mol-atom	1060	model			[2] Zeng 2019	Table 4, p. 9, row 15 report
βCo5Ge3		-16.665 per mol-atom	1060	model			[2] Zeng 2019	Table 4, p. 9, row 17 report
βCo5Ge3	Co5Ge3	-16.171 kJ/mol-atom	1060	model		-16.532 (oqmd-1437178)	[3] Dong 2013	Table 6, p. 5, row 12 report
βCo5Ge3		-15.868 per mol-atom ± 1104	1060	experimental			[2] Zeng 2019 cites Predel 1979 doi	Table 4, p. 9, row 13 report
βCo5Ge3	Co5Ge3	-15.868 kJ/mol-atom	1060	experimental		-16.532 (oqmd-1437178)	[3] Dong 2013 cites Predel 1979 doi	Table 6, p. 5, row 9 report
βCo5Ge3		-15.124 per mol-atom	1060	model			[2] Zeng 2019	Table 4, p. 9, row 14 report
βCo5Ge3	Co5Ge3	-14.314 kJ/mol-atom	1060	model		-16.532 (oqmd-1437178)	[3] Dong 2013	Table 6, p. 5, row 10 report
βCo5Ge3		-10.994 per mol-atom	1060	model			[2] Zeng 2019	Table 4, p. 9, row 21 report

Other properties

Phase transition (2)

Phase transition, Co–Ge system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	1482 K	1482	congruent melting: L -> βCo5Ge3 L: Ge 0.383; βCo5Ge3: Ge 0.383	model	[3] Dong 2013	Table 7, p. 6, row 2 report
Phase transition	1483 K	1483	congruent melting: L -> βCo5Ge3 L: Ge 0.375; βCo5Ge3: Ge 0.375	model	[3] Dong 2013 cites Ishida 1991 doi	Table 7, p. 6, row 1 report

Crystal structure (17)

Crystal structure, Co–Ge system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Lattice a printed: a	11.57 Å	298.15	CoGe alloy: Ge 0.5	model	[3] Dong 2013	Table 5, p. 4, row 5 report
Lattice a printed: a	11.684 Å	298.15	CoGe alloy: Ge 0.5	experimental	[3] Dong 2013 cites Bhan 1960	Table 5, p. 4, row 4 report
Lattice a printed: a	5.65 Å	298.15	CoGe2 alloy: Ge 0.666667	experimental	[3] Dong 2013 cites Schubert 1950	Table 5, p. 4, row 2 report
Lattice a printed: a	5.684 Å	298.15	CoGe2 alloy: Ge 0.666667	model	[3] Dong 2013	Table 5, p. 4, row 3 report
Lattice a printed: a	5.67 Å	298.15	CoGe2 alloy: Ge 0.666667	experimental	[3] Dong 2013 cites Schubert 1950	Table 5, p. 4, row 1 report
Lattice b printed: b	3.766 Å	298.15	CoGe alloy: Ge 0.5	model	[3] Dong 2013	Table 5, p. 4, row 5 report
Lattice b printed: b	3.807 Å	298.15	CoGe alloy: Ge 0.5	experimental	[3] Dong 2013 cites Bhan 1960	Table 5, p. 4, row 4 report
Lattice b printed: b	5.65 Å	298.15	CoGe2 alloy: Ge 0.666667	experimental	[3] Dong 2013 cites Schubert 1950	Table 5, p. 4, row 2 report
Lattice b printed: b	5.682 Å	298.15	CoGe2 alloy: Ge 0.666667	model	[3] Dong 2013	Table 5, p. 4, row 3 report
Lattice b printed: b	5.67 Å	298.15	CoGe2 alloy: Ge 0.666667	experimental	[3] Dong 2013 cites Schubert 1950	Table 5, p. 4, row 1 report
Lattice c printed: c	4.934 Å	298.15	CoGe alloy: Ge 0.5	model	[3] Dong 2013	Table 5, p. 4, row 5 report
Lattice c printed: c	4.945 Å	298.15	CoGe alloy: Ge 0.5	experimental	[3] Dong 2013 cites Bhan 1960	Table 5, p. 4, row 4 report
Lattice c printed: c	10.8 Å	298.15	CoGe2 alloy: Ge 0.666667	experimental	[3] Dong 2013 cites Schubert 1950	Table 5, p. 4, row 2 report
Lattice c printed: c	10.94 Å	298.15	CoGe2 alloy: Ge 0.666667	model	[3] Dong 2013	Table 5, p. 4, row 3 report
Lattice c printed: c	10.796 Å	298.15	CoGe2 alloy: Ge 0.666667	experimental	[3] Dong 2013 cites Schubert 1950	Table 5, p. 4, row 1 report
lattice unspecified axis printed: β	99.6 °	298.15	CoGe alloy: Ge 0.5	model	[3] Dong 2013	Table 5, p. 4, row 5 report
lattice unspecified axis printed: β	101.1 °	298.15	CoGe alloy: Ge 0.5	experimental	[3] Dong 2013 cites Bhan 1960	Table 5, p. 4, row 4 report

Sources

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

I Ansara, F Ajersch, The Ga-Pb (Gallium-Lead) System, JPE 12, 73-77 (1991). doi:10.1007/bf02663678
Yinping Zeng, Yong Du, Han Li, Peng Zhou, Shuhong Liu, Kaiming Cheng et al., Thermodynamic description and solidified microstructure of the Co-Ge system, Journal of Alloys and Compounds 793, 480-491 (2019). doi:10.1016/j.jallcom.2018.12.205
S.S. Dong, S.G. Liu, X.M. Tao, F.H. Xiao, L.H. Huang, F. Yang et al., Thermodynamic optimization of Co–Ge binary system, Thermochimica Acta 572, 94-100 (2013). doi:10.1016/j.tca.2013.08.026

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}
}