Ag–Ca system

59 accepted literature values from 2 paper(s) (experimental 31, model 20, unspecified 8); 3 calculated phase diagram(s). 40 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 (10) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	31
model	20
unspecified	8

Accepted values by property group
Property group	Values
invariant reaction	46
phase transition	2
formation	7
activity / EMF / Gibbs energy	4

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
AgCa-08Hua.tdb	G.X. Huang, L.B. Liu, B.R. Jia, L.G. Zhang, Z.P. Jin, J. Alloys Compd., 460, 375-78(2008). doi:10.1016/j.jallcom.2007.06.064	`426decd914817145440ee6335206476c92b072efeb6bde4fee66c8652a6f0c0d`	viewer · TDB · JSON
AgCa-14Bra.tdb	M.H. Braga, A. Debski, W. Gasior, J. Alloys Compd., 612, 280-86(2014). doi:10.1016/j.jallcom.2014.05.141	`2e7a57eb5f5fff2b879885a86fc7f2070867755c7897ff80137db64d3105782f`	viewer · TDB · JSON
AgCa-96Che-LB.tdb	P.-Y. Chevalier, E. Fischer, unpublished, Thermodata, 1996.	`9a265c0f2167061ba4487836811d1d60610fe4160b268e5620dc04f783a8ac03`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
AgCa-08Hua.tdb	959.91	LIQUID (x(Ca) 0.16273) + AG9CA2_C15B (x(Ca) 0.18182) + AG7CA2 (x(Ca) 0.22222)
AgCa-08Hua.tdb	959.91	LIQUID (x(Ca) 0.16278) + AG9CA2_C15B (x(Ca) 0.18182) + AG7CA2 (x(Ca) 0.22222)
AgCa-08Hua.tdb	959.91	LIQUID (x(Ca) 0.16263) + AG9CA2_C15B (x(Ca) 0.18182) + AG7CA2 (x(Ca) 0.22222)
AgCa-08Hua.tdb	925.57	FCC_A1 (x(Ca) 1.000e-5) + LIQUID (x(Ca) 0.12506) + AG9CA2_C15B (x(Ca) 0.18182)
AgCa-08Hua.tdb	925.57	FCC_A1 (x(Ca) 1.000e-5) + LIQUID (x(Ca) 0.12507) + AG9CA2_C15B (x(Ca) 0.18182)
AgCa-08Hua.tdb	925.57	FCC_A1 (x(Ca) 1.000e-5) + LIQUID (x(Ca) 0.12501) + AG9CA2_C15B (x(Ca) 0.18182)
AgCa-08Hua.tdb	925.57	FCC_A1 (x(Ca) 1.000e-5) + LIQUID (x(Ca) 0.125) + AG9CA2_C15B (x(Ca) 0.18182)
AgCa-08Hua.tdb	869.97	AG7CA2 (x(Ca) 0.22222) + LIQUID (x(Ca) 0.32976) + AG2CA (x(Ca) 0.33333)
AgCa-08Hua.tdb	869.96	AG7CA2 (x(Ca) 0.22222) + LIQUID (x(Ca) 0.32996) + AG2CA (x(Ca) 0.33333)
AgCa-08Hua.tdb	827.85	AGCA_B33 (x(Ca) 0.5) + LIQUID (x(Ca) 0.60039) + AG3CA5_D8L (x(Ca) 0.625)
AgCa-08Hua.tdb	827.85	AGCA_B33 (x(Ca) 0.5) + LIQUID (x(Ca) 0.6005) + AG3CA5_D8L (x(Ca) 0.625)
AgCa-08Hua.tdb	827.85	AGCA_B33 (x(Ca) 0.5) + LIQUID (x(Ca) 0.60005) + AG3CA5_D8L (x(Ca) 0.625)
AgCa-08Hua.tdb	820.76	AG2CA (x(Ca) 0.33333) + LIQUID (x(Ca) 0.4021) + AGCA_B33 (x(Ca) 0.5)
AgCa-08Hua.tdb	747.94	AG3CA5_D8L (x(Ca) 0.625) + LIQUID (x(Ca) 0.74997) + AGCA3 (x(Ca) 0.75)
AgCa-08Hua.tdb	747.94	AG3CA5_D8L (x(Ca) 0.625) + LIQUID (x(Ca) 0.74983) + AGCA3 (x(Ca) 0.75)
AgCa-08Hua.tdb	736.72	AGCA3 (x(Ca) 0.75) + LIQUID (x(Ca) 0.79588) + BCC_A2 (x(Ca) 0.99998)
AgCa-08Hua.tdb	736.72	AGCA3 (x(Ca) 0.75) + LIQUID (x(Ca) 0.79596) + BCC_A2 (x(Ca) 0.99998)
AgCa-08Hua.tdb	716.06	AGCA3 (x(Ca) 0.75) + FCC_A1 (x(Ca) 0.99998) + BCC_A2 (x(Ca) 0.99999)
AgCa-14Bra.tdb	953.91	LIQUID (x(Ca) 0.15586) + AG9CA2_C15B (x(Ca) 0.18182) + AG7CA2 (x(Ca) 0.22222)
AgCa-14Bra.tdb	953.91	LIQUID (x(Ca) 0.15609) + AG9CA2_C15B (x(Ca) 0.18182) + AG7CA2 (x(Ca) 0.22222)
AgCa-14Bra.tdb	953.91	LIQUID (x(Ca) 0.1557) + AG9CA2_C15B (x(Ca) 0.18182) + AG7CA2 (x(Ca) 0.22222)
AgCa-14Bra.tdb	927.43	FCC_A1 (x(Ca) 1.000e-5) + LIQUID (x(Ca) 0.12679) + AG9CA2_C15B (x(Ca) 0.18182)
AgCa-14Bra.tdb	927.43	FCC_A1 (x(Ca) 1.000e-5) + LIQUID (x(Ca) 0.12681) + AG9CA2_C15B (x(Ca) 0.18182)
AgCa-14Bra.tdb	927.43	FCC_A1 (x(Ca) 1.000e-5) + LIQUID (x(Ca) 0.12672) + AG9CA2_C15B (x(Ca) 0.18182)
AgCa-14Bra.tdb	927.43	FCC_A1 (x(Ca) 1.000e-5) + LIQUID (x(Ca) 0.12671) + AG9CA2_C15B (x(Ca) 0.18182)
AgCa-14Bra.tdb	867.72	AG7CA2 (x(Ca) 0.22222) + AG2CA (x(Ca) 0.33333) + LIQUID (x(Ca) 0.33616)
AgCa-14Bra.tdb	867.72	AG7CA2 (x(Ca) 0.22222) + AG2CA (x(Ca) 0.33333) + LIQUID (x(Ca) 0.33606)
AgCa-14Bra.tdb	827.97	AG2CA (x(Ca) 0.33333) + LIQUID (x(Ca) 0.39661) + AGCA_B33 (x(Ca) 0.5)
AgCa-14Bra.tdb	827.97	AG2CA (x(Ca) 0.33333) + LIQUID (x(Ca) 0.39681) + AGCA_B33 (x(Ca) 0.5)
AgCa-14Bra.tdb	821.42	AGCA_B33 (x(Ca) 0.5) + LIQUID (x(Ca) 0.61374) + AG3CA5_D8L (x(Ca) 0.625)
AgCa-14Bra.tdb	821.42	AGCA_B33 (x(Ca) 0.5) + LIQUID (x(Ca) 0.61358) + AG3CA5_D8L (x(Ca) 0.625)
AgCa-14Bra.tdb	748.1	AG3CA5_D8L (x(Ca) 0.625) + LIQUID (x(Ca) 0.72987) + AGCA3 (x(Ca) 0.75)
AgCa-14Bra.tdb	748.1	AG3CA5_D8L (x(Ca) 0.625) + LIQUID (x(Ca) 0.72982) + AGCA3 (x(Ca) 0.75)
AgCa-14Bra.tdb	746.09	AGCA3 (x(Ca) 0.75) + LIQUID (x(Ca) 0.77828) + BCC_A2 (x(Ca) 0.99998)
AgCa-14Bra.tdb	746.09	AGCA3 (x(Ca) 0.75) + LIQUID (x(Ca) 0.77836) + BCC_A2 (x(Ca) 0.99998)
AgCa-14Bra.tdb	716.06	AGCA3 (x(Ca) 0.75) + FCC_A1 (x(Ca) 0.99998) + BCC_A2 (x(Ca) 0.99999)
AgCa-96Che-LB.tdb	961.37	LIQUID (x(Ca) 0.16731) + AG9CA2_C15B (x(Ca) 0.18182) + AG7CA2 (x(Ca) 0.22222)
AgCa-96Che-LB.tdb	961.37	LIQUID (x(Ca) 0.16743) + AG9CA2_C15B (x(Ca) 0.18182) + AG7CA2 (x(Ca) 0.22222)
AgCa-96Che-LB.tdb	961.37	LIQUID (x(Ca) 0.16715) + AG9CA2_C15B (x(Ca) 0.18182) + AG7CA2 (x(Ca) 0.22222)
AgCa-96Che-LB.tdb	915.03	FCC_A1 (x(Ca) 0) + LIQUID (x(Ca) 0.11871) + AG9CA2_C15B (x(Ca) 0.18182)
AgCa-96Che-LB.tdb	915.03	FCC_A1 (x(Ca) 0) + LIQUID (x(Ca) 0.11871) + AG9CA2_C15B (x(Ca) 0.18182)
AgCa-96Che-LB.tdb	915.02	FCC_A1 (x(Ca) 0) + LIQUID (x(Ca) 0.11893) + AG9CA2_C15B (x(Ca) 0.18182)
AgCa-96Che-LB.tdb	915.02	FCC_A1 (x(Ca) 0) + LIQUID (x(Ca) 0.11888) + AG9CA2_C15B (x(Ca) 0.18182)
AgCa-96Che-LB.tdb	861.63	AG7CA2 (x(Ca) 0.22222) + AG2CA (x(Ca) 0.33333) + LIQUID (x(Ca) 0.34146)
AgCa-96Che-LB.tdb	861.63	AG7CA2 (x(Ca) 0.22222) + AG2CA (x(Ca) 0.33333) + LIQUID (x(Ca) 0.34123)
AgCa-96Che-LB.tdb	838.55	AG2CA (x(Ca) 0.33333) + LIQUID (x(Ca) 0.38751) + AGCA_B33 (x(Ca) 0.5)
AgCa-96Che-LB.tdb	838.54	AG2CA (x(Ca) 0.33333) + LIQUID (x(Ca) 0.38768) + AGCA_B33 (x(Ca) 0.5)
AgCa-96Che-LB.tdb	838.54	AG2CA (x(Ca) 0.33333) + LIQUID (x(Ca) 0.3878) + AGCA_B33 (x(Ca) 0.5)
AgCa-96Che-LB.tdb	829.55	AGCA_B33 (x(Ca) 0.5) + AG3CA5_D8L (x(Ca) 0.625) + LIQUID (x(Ca) 0.62957)
AgCa-96Che-LB.tdb	829.55	AGCA_B33 (x(Ca) 0.5) + AG3CA5_D8L (x(Ca) 0.625) + LIQUID (x(Ca) 0.62953)
AgCa-96Che-LB.tdb	756.61	AG3CA5_D8L (x(Ca) 0.625) + LIQUID (x(Ca) 0.74471) + AGCA3 (x(Ca) 0.75)
AgCa-96Che-LB.tdb	756.61	AG3CA5_D8L (x(Ca) 0.625) + LIQUID (x(Ca) 0.74446) + AGCA3 (x(Ca) 0.75)
AgCa-96Che-LB.tdb	756.61	AG3CA5_D8L (x(Ca) 0.625) + LIQUID (x(Ca) 0.74489) + AGCA3 (x(Ca) 0.75)
AgCa-96Che-LB.tdb	745.38	AGCA3 (x(Ca) 0.75) + LIQUID (x(Ca) 0.79811) + BCC_A2 (x(Ca) 0.99994)
AgCa-96Che-LB.tdb	745.38	AGCA3 (x(Ca) 0.75) + LIQUID (x(Ca) 0.79817) + BCC_A2 (x(Ca) 0.99994)
AgCa-96Che-LB.tdb	715.86	AGCA3 (x(Ca) 0.75) + BCC_A2 (x(Ca) 0.99996) + FCC_A1 (x(Ca) 1)
AgCa-96Che-LB.tdb	715.86	AGCA3 (x(Ca) 0.75) + BCC_A2 (x(Ca) 0.99996) + FCC_A1 (x(Ca) 1)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull AgCa-08Hua · CALPHAD hull AgCa-96Che-LB

Invariant reactions (literature)

Invariant reactions reported in the literature for the Ag–Ca system (46)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1002	congruent melting: Liquid <-> Ag7Ca2	Liquid: Ag 0.777778, Ca 0.222222; Ag7Ca2: Ag 0.777778, Ca 0.222222	model	[1] Braga 2014	Table 3, p. 6, row 25 report
997	congruent melting: Liquid <-> Ag7Ca2	Liquid: Ag 0.777778, Ca 0.222222; Ag7Ca2: Ag 0.777778, Ca 0.222222	experimental	[1] Braga 2014	Table 3, p. 6, row 24 report
961	peritectic: Liquid + Ag7Ca2 <-> Ag9Ca2	Ag7Ca2: Ag 0.777778, Ca 0.222222; Ag9Ca2: Ag 0.818182, Ca 0.181818	experimental	[1] Braga 2014 cites Alexander 1969 doi	Table 3, p. 6, row 4 report
960	peritectic: L + Ca2Ag7 -> Ca2Ag9	L: Ca 0.163; Ca2Ag7: Ca 0.222; Ca2Ag9: Ca 0.182	model	[2] Huang 2008	Table 3, p. 3, row 3 report
960	peritectic: L + Ca2Ag7 -> Ca2Ag9	L: Ca 0.182; Ca2Ag7: Ca 0.222; Ca2Ag9: Ca 0.182	unspecified	[2] Huang 2008 cites Baren 1988 doi	Table 3, p. 3, row 4 report
959	peritectic: Liquid + Ag7Ca2 <-> Ag9Ca2	Ag7Ca2: Ag 0.777778, Ca 0.222222; Ag9Ca2: Ag 0.818182, Ca 0.181818	experimental	[1] Braga 2014 cites Alexander 1969 doi	Table 3, p. 6, row 5 report
954	peritectic: Liquid + Ag7Ca2 <-> Ag9Ca2	Liquid: Ca 0.156; Ag7Ca2: Ag 0.777778, Ca 0.222222; Ag9Ca2: Ag 0.818182, Ca 0.181818	model	[1] Braga 2014	Table 3, p. 6, row 6 report
938	congruent melting: Liquid <-> AgCa	Liquid: Ag 0.5, Ca 0.5; AgCa: Ag 0.5, Ca 0.5	experimental	[1] Braga 2014 cites Pascal 1970	Table 3, p. 6, row 26 report
932	congruent melting: Liquid <-> AgCa	Liquid: Ag 0.5, Ca 0.5; AgCa: Ag 0.5, Ca 0.5	model	[1] Braga 2014	Table 3, p. 6, row 28 report
928	eutectic: Liquid <-> Ag (fcc A1) + Ag9Ca2	Liquid: Ca 0.127; Ag9Ca2: Ag 0.818182, Ca 0.181818	model	[1] Braga 2014	Table 3, p. 6, row 3 report
928	eutectic: Liquid <-> Ag (fcc A1) + Ag9Ca2	Ag9Ca2: Ag 0.818182, Ca 0.181818	experimental	[1] Braga 2014 cites Alexander 1969 doi	Table 3, p. 6, row 1 report
928	eutectic: L -> (Ag) + Ag9Ca2	L: Ca 0.14; (Ag): Ca 0; Ag9Ca2: Ca 0.182	unspecified	[2] Huang 2008 cites Baren 1988 doi	Table 3, p. 3, row 2 report
926	eutectic: L -> (Ag) + Ag9Ca2	L: Ca 0.125; (Ag): Ca 0; Ag9Ca2: Ca 0.182	model	[2] Huang 2008	Table 3, p. 3, row 1 report
917	eutectic: Liquid <-> Ag (fcc A1) + Ag9Ca2	Ag9Ca2: Ag 0.818182, Ca 0.181818	experimental	[1] Braga 2014 cites Alexander 1969 doi	Table 3, p. 6, row 2 report
871	peritectic: Liquid + Ag7Ca2 <-> Ag2Ca	Ag7Ca2: Ag 0.777778, Ca 0.222222; Ag2Ca: Ag 0.666667, Ca 0.333333	experimental	[1] Braga 2014 cites Alexander 1969 doi	Table 3, p. 6, row 7 report
870	peritectic: L + Ca2Ag7 -> Ca Ag2	L: Ca 0.333; Ca2Ag7: Ca 0.222; Ca Ag2: Ca 0.332	unspecified	[2] Huang 2008 cites Baren 1988 doi	Table 3, p. 3, row 8 report
870	peritectic: L + Ca2Ag7 -> Ca Ag2	L: Ca 0.33; Ca2Ag7: Ca 0.222; Ca Ag2: Ca 0.333	model	[2] Huang 2008	Table 3, p. 3, row 7 report
868	peritectic: Liquid + Ag7Ca2 <-> Ag2Ca	Liquid: Ca 0.336; Ag7Ca2: Ag 0.777778, Ca 0.222222; Ag2Ca: Ag 0.666667, Ca 0.333333	model	[1] Braga 2014	Table 3, p. 6, row 9 report
831	eutectic: Liquid <-> AgCa + Ag3Ca5	AgCa: Ag 0.5, Ca 0.5; Ag3Ca5: Ag 0.375, Ca 0.625	experimental	[1] Braga 2014 cites Alexander 1969 doi	Table 3, p. 6, row 13 report
831	congruent melting: Liquid <-> Ag3Ca5	Liquid: Ag 0.375, Ca 0.625; Ag3Ca5: Ag 0.375, Ca 0.625	experimental	[1] Braga 2014 cites Pascal 1970	Table 3, p. 6, row 30 report
828	congruent melting: Liquid <-> Ag3Ca5	Liquid: Ag 0.375, Ca 0.625; Ag3Ca5: Ag 0.375, Ca 0.625	experimental	[1] Braga 2014 cites Pascal 1970	Table 3, p. 6, row 29 report
828	eutectic: L -> CaAg + Ca5Ag3	L: Ca 0.6; CaAg: Ca 0.5; Ca5Ag3: Ca 0.625	model	[2] Huang 2008	Table 3, p. 3, row 13 report
828	peritectic: L + CaAg -> Ca5Ag3	L: Ca 0.625; CaAg: Ca 0.5; Ca5Ag3: Ca 0.625	unspecified	[2] Huang 2008 cites Baren 1988 doi	Table 3, p. 3, row 14 report
828	eutectic: Liquid <-> Ag2Ca + AgCa	Liquid: Ca 0.397; Ag2Ca: Ag 0.666667, Ca 0.333333; AgCa: Ag 0.5, Ca 0.5	model	[1] Braga 2014	Table 3, p. 6, row 12 report
825	eutectic: Liquid <-> AgCa + Ag3Ca5	AgCa: Ag 0.5, Ca 0.5; Ag3Ca5: Ag 0.375, Ca 0.625	experimental	[1] Braga 2014 cites Alexander 1969 doi	Table 3, p. 6, row 14 report
822	congruent melting: Liquid <-> Ag3Ca5	Liquid: Ag 0.375, Ca 0.625; Ag3Ca5: Ag 0.375, Ca 0.625	model	[1] Braga 2014	Table 3, p. 6, row 31 report
821	eutectic: Liquid <-> AgCa + Ag3Ca5	AgCa: Ag 0.5, Ca 0.5; Ag3Ca5: Ag 0.375, Ca 0.625	model	[1] Braga 2014	Table 3, p. 6, row 16 report
821	eutectic: L -> CaAg2 + CaAg	L: Ca 0.402; CaAg2: Ca 0.333; CaAg: Ca 0.5	model	[2] Huang 2008	Table 3, p. 3, row 9 report
820	eutectic: Liquid <-> AgCa + Ag3Ca5	Liquid: Ca 0.614; AgCa: Ag 0.5, Ca 0.5; Ag3Ca5: Ag 0.375, Ca 0.625	experimental	[1] Braga 2014 cites Pascal 1970	Table 3, p. 6, row 15 report
819	eutectic: Liquid <-> Ag2Ca + AgCa	Ag2Ca: Ag 0.666667, Ca 0.333333; AgCa: Ag 0.5, Ca 0.5	experimental	[1] Braga 2014 cites Alexander 1969 doi	Table 3, p. 6, row 10 report
818	eutectic: L -> CaAg2 + CaAg	L: Ca 0.395; CaAg2: Ca 0.333; CaAg: Ca 0.5	unspecified	[2] Huang 2008 cites Baren 1988 doi	Table 3, p. 3, row 10 report
807	eutectic: Liquid <-> Ag2Ca + AgCa	Ag2Ca: Ag 0.666667, Ca 0.333333; AgCa: Ag 0.5, Ca 0.5	experimental	[1] Braga 2014 cites Alexander 1969 doi	Table 3, p. 6, row 11 report
756	congruent melting: Liquid <-> AgCa3	Liquid: Ag 0.25, Ca 0.75; AgCa3: Ag 0.25, Ca 0.75	experimental	[1] Braga 2014 cites Pascal 1970	Table 3, p. 6, row 33 report
751	eutectic: Liquid <-> Ag3Ca5 + AgCa3	Ag3Ca5: Ag 0.375, Ca 0.625; AgCa3: Ag 0.25, Ca 0.75	experimental	[1] Braga 2014 cites Alexander 1969 doi	Table 3, p. 6, row 17 report
751	congruent melting: Liquid <-> AgCa3	Liquid: Ag 0.25, Ca 0.75; AgCa3: Ag 0.25, Ca 0.75	model	[1] Braga 2014	Table 3, p. 6, row 34 report
748	peritectic: L + Ca5Ag3 -> Ca3Ag	L: Ca 0.75; Ca5Ag3: Ca 0.625; Ca3Ag: Ca 0.75	unspecified	[2] Huang 2008 cites Baren 1988 doi	Table 3, p. 3, row 16 report
748	eutectic: Liquid <-> Ag3Ca5 + AgCa3	Ag3Ca5: Ag 0.375, Ca 0.625; AgCa3: Ag 0.25, Ca 0.75	experimental	[1] Braga 2014 cites Pascal 1970	Table 3, p. 6, row 18 report
748	peritectic: L + Ca5Ag3 -> Ca3Ag	L: Ca 0.75; Ca5Ag3: Ca 0.625; Ca3Ag: Ca 0.75	model	[2] Huang 2008	Table 3, p. 3, row 15 report
748	eutectic: Liquid <-> Ag3Ca5 + AgCa3	Liquid: Ca 0.73; Ag3Ca5: Ag 0.375, Ca 0.625; AgCa3: Ag 0.25, Ca 0.75	model	[1] Braga 2014	Table 3, p. 6, row 19 report
747	congruent melting: Liquid <-> AgCa3	Liquid: Ag 0.25, Ca 0.75; AgCa3: Ag 0.25, Ca 0.75	experimental	[1] Braga 2014 cites Alexander 1969 doi	Table 3, p. 6, row 32 report
746	eutectic: Liquid <-> AgCa3 + Ca (bcc A2)	Liquid: Ca 0.778; AgCa3: Ag 0.25, Ca 0.75	model	[1] Braga 2014	Table 3, p. 6, row 22 report
743	eutectic: L -> Ca3Ag + (βCa)	L: Ca 0.8; Ca3Ag: Ca 0.75; (βCa): Ca 1	unspecified	[2] Huang 2008 cites Baren 1988 doi	Table 3, p. 3, row 18 report
743	eutectic: Liquid <-> AgCa3 + Ca (bcc A2)	AgCa3: Ag 0.25, Ca 0.75	experimental	[1] Braga 2014 cites Pascal 1970	Table 3, p. 6, row 20 report
737	eutectic: L -> Ca3Ag + (βCa)	L: Ca 0.796; Ca3Ag: Ca 0.75; (βCa): Ca 1	model	[2] Huang 2008	Table 3, p. 3, row 17 report
733	eutectic: Liquid <-> AgCa3 + Ca (bcc A2)	AgCa3: Ag 0.25, Ca 0.75	experimental	[1] Braga 2014 cites Pascal 1970	Table 3, p. 6, row 21 report
716	polymorphic: Ca (bcc A2) <-> Ca (fcc A1)		model	[1] Braga 2014	Table 3, p. 6, row 23 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, Ag–Ca system (7)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location
Ag9Ca2		-15.2 kJ/mol-atom	298.15	experimental			[1] Braga 2014	Table 1, p. 2, row 2 report
Ag9Ca2		-15.1 kJ/mol-atom	298.15	experimental			[1] Braga 2014	Table 1, p. 2, row 5 report
Ag9Ca2		-14.6 kJ/mol-atom	298.15	experimental			[1] Braga 2014	Table 1, p. 2, row 3 report
Ag9Ca2		-14.5 kJ/mol-atom	298.15	experimental			[1] Braga 2014	Table 1, p. 2, row 4 report
AgCa3	AgCa3	-12.5 kJ/mol-atom	298.15	experimental	-5.282 (mp-aaacpirk)	-20.024 (oqmd-1787095)	[1] Braga 2014	Table 1, p. 2, row 8 report
AgCa3	AgCa3	-11.6 kJ/mol-atom	298.15	experimental	-5.282 (mp-aaacpirk)	-20.024 (oqmd-1787095)	[1] Braga 2014	Table 1, p. 2, row 10 report
AgCa3	AgCa3	-11.3 kJ/mol-atom	298.15	experimental	-5.282 (mp-aaacpirk)	-20.024 (oqmd-1787095)	[1] Braga 2014	Table 1, p. 2, row 9 report

Other properties

Phase transition (2)

Phase transition, Ag–Ca system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	938 K	938	congruent melting: L -> CaAg L: Ca 0.5; CaAg: Ca 0.5	model	[2] Huang 2008	Table 3, p. 3, row 11 report
Phase transition	939 K	939	congruent melting: L -> CaAg L: Ca 0.5; CaAg: Ca 0.5	unspecified	[2] Huang 2008 cites Baren 1988 doi	Table 3, p. 3, row 12 report

Activity / EMF / Gibbs energy (4)

Activity / EMF / Gibbs energy, Ag–Ca system
Property	Value	T (K)	Class	Source	Location	Quote
Gibbs energy printed: free energy of formation	-15.7 kJ/mol	830	experimental	[2] Huang 2008 cites Notin 1982 doi	p. 1 report	Notin and Hertz [11] determined the free energy of formation of Ca2 Ag9 , Ca2 Ag7 , CaAg2 and CaAg at 830 K to be -15.7, -18.9, -22.5 and -25 kJ/mol, respectively.
Gibbs energy printed: free energy of formation	-25 kJ/mol	830	experimental	[2] Huang 2008 cites Notin 1982 doi	p. 1 report	Notin and Hertz [11] determined the free energy of formation of Ca2 Ag9 , Ca2 Ag7 , CaAg2 and CaAg at 830 K to be -15.7, -18.9, -22.5 and -25 kJ/mol, respectively.
Gibbs energy printed: free energy of formation	-18.9 kJ/mol	830	experimental	[2] Huang 2008 cites Notin 1982 doi	p. 1 report	Notin and Hertz [11] determined the free energy of formation of Ca2 Ag9 , Ca2 Ag7 , CaAg2 and CaAg at 830 K to be -15.7, -18.9, -22.5 and -25 kJ/mol, respectively.
Gibbs energy printed: free energy of formation	-22.5 kJ/mol	830	experimental	[2] Huang 2008 cites Notin 1982 doi	p. 1 report	Notin and Hertz [11] determined the free energy of formation of Ca2 Ag9 , Ca2 Ag7 , CaAg2 and CaAg at 830 K to be -15.7, -18.9, -22.5 and -25 kJ/mol, respectively.

Sources

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

M. Helena Braga, Adam Dębski, Władysław Gąsior, Optimization and assessment of the Ag–Ca phase diagram, Journal of Alloys and Compounds 612, 280-286 (2014). doi:10.1016/j.jallcom.2014.05.141
G.X. Huang, L.B. Liu, B.R. Jia, L.G. Zhang, Z.P. Jin, Thermodynamic modeling of the Ca–Ag binary system, Journal of Alloys and Compounds 460, 375-378 (2008). doi:10.1016/j.jallcom.2007.06.064

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}
}