U–Zr system

66 accepted literature values from 2 paper(s) (experimental 46, model 20); 9 calculated phase diagram(s). 12 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 (8) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	46
model	20

Accepted values by property group
Property group	Values
invariant reaction	30
phase transition	16
activity / EMF / Gibbs energy	20

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
UZr-04Che-LB.tdb	P.-Y. Chevalier, E. Fischer, B. Cheynet, Calphad, 28, 15-40(2004). doi:10.1016/j.calphad.2004.03.005	`6481e0aab32c502553eec19fcbdb8d8df901d380f73dd5b6114027da6a71f311`	viewer · TDB · JSON
UZr-10Kur.tdb	M. Kurata, IOP Conf. Ser.: Mater. Sci. Eng., 9, 012022(2010).	`ffe4a27268b05f0884c247e73ce1d396826440856b5ce0091416fb94c489446a`	viewer · TDB · JSON
UZr-13Xio.tdb	W. Xiong, W. Xie, C. Shen, D. Morgan, J. Nuclear Mater., 443, 331-41(2013). doi:10.1016/j.jnucmat.2013.07.034	`eafa259a3af659a1670bc5131aa91abddb149212bbca65466ed9587554f684aa`	viewer · TDB · JSON
UZr-18Qua.tdb	A. Quaini, C. Gueneau, S. Gosse, N. Dupin, B. Sundman, E. Brackx R. Domenger, M. Kurata, F. Hodaj, J. Nuclear Mater., 501, 104-31(2018). doi:10.1016/j.jnucmat.2018.01.023	`03a5d10eb8a85d302f4d569f32fc5bcadc8a11dd99177506228d1724e55a18cc`	viewer · TDB · JSON
UZr-18Xie.tdb	W. Xie, D. Morgan, Comput. Mater. Sci., 143, 505-14(2018). doi:10.1016/j.commatsci.2017.11.042	`7469615c052eb9435d2951c01b509f0f4770b39295e10b70605ecba96f883e81`	viewer · TDB · JSON
UZr-25Wil.tdb	W.J. Williams, J. Lund, R.E. Garcia, M.A. Okuniewski, J. Nucl. Mater., 603, 155378(2025). doi:10.1016/j.jnucmat.2024.155378	`82222cb1e3065b7a62218733f8869b152ceeccb5bb5b05f1ab7eb4c2d684dd96`	viewer · TDB · JSON
UZr-98AEA.tdb	AEA Harwell, unpublished, 1998.	`bcf26f6ed9ab56b8f6e7002b90ea7fa8b80e0605367144fa22a77a495b2ef44c`	viewer · TDB · JSON
UZr-98Che.tdb	P.-Y. Chevalier, E. Fischer, J. Nucl. Mater., 257, 213-55(1998). doi:10.1016/S0022-3115(98)00450-4	`f8840e9375fb1dd81b0b5ff7dd16d781d9d2f4e547f3185dcd3b2e1cfb28ebf9`	viewer · TDB · JSON
UZr-98Kur.tdb	M. Kurata, T. Ogata, K. Nakamura, T. Ogawa, J. Alloys Compd., 271-273, 636-40(1998). doi:10.1016/S0925-8388(98)00176-5	`50af5e7e903bfaece1b5c166f9b4f36b4ea447b8f2c5a579177d5106f13a57f6`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
UZr-04Che-LB.tdb	965.48	TETRAGONAL_U (x(Zr) 0.01016) + BCC_A2 (x(Zr) 0.17159) + BCC_A2#2 (x(Zr) 0.44603)
UZr-04Che-LB.tdb	934.23	ORTHORHOMBIC_A20 (x(Zr) 0.00703) + TETRAGONAL_U (x(Zr) 0.00998) + BCC_A2 (x(Zr) 0.55433)
UZr-04Che-LB.tdb	888.4	ORTHORHOMBIC_A20 (x(Zr) 0.00659) + BCC_A2 (x(Zr) 0.63973) + UZR2_DELTA (x(Zr) 0.64144)
UZr-04Che-LB.tdb	882.86	UZR2_DELTA (x(Zr) 0.78341) + BCC_A2 (x(Zr) 0.80102) + HCP_A3 (x(Zr) 0.99532)
UZr-10Kur.tdb	967.73	TETRAGONAL_U (x(Zr) 0.01871) + BCC_A2 (x(Zr) 0.1146) + BCC_A2#2 (x(Zr) 0.47965)
UZr-10Kur.tdb	936.97	ORTHORHOMBIC_A20 (x(Zr) 0.01709) + TETRAGONAL_U (x(Zr) 0.01919) + BCC_A2 (x(Zr) 0.62558)
UZr-10Kur.tdb	887.82	ORTHORHOMBIC_A20 (x(Zr) 0.01643) + UZR2_DELTA (x(Zr) 0.63474) + BCC_A2 (x(Zr) 0.77864)
UZr-10Kur.tdb	883.54	UZR2_DELTA (x(Zr) 0.752) + BCC_A2 (x(Zr) 0.81433) + HCP_A3 (x(Zr) 0.98173)
UZr-13Xio.tdb	963.74	TETRAGONAL_U (x(Zr) 0.01171) + BCC_A2 (x(Zr) 0.1124) + BCC_A2#2 (x(Zr) 0.44034)
UZr-13Xio.tdb	934.7	ORTHORHOMBIC_A20 (x(Zr) 0.00797) + TETRAGONAL_U (x(Zr) 0.01093) + BCC_A2 (x(Zr) 0.56358)
UZr-13Xio.tdb	891.85	ORTHORHOMBIC_A20 (x(Zr) 0.00685) + UZR2_DELTA (x(Zr) 0.63657) + BCC_A2 (x(Zr) 0.67584)
UZr-13Xio.tdb	876.7	UZR2_DELTA (x(Zr) 0.77223) + BCC_A2 (x(Zr) 0.81241) + HCP_A3 (x(Zr) 0.98718)
UZr-18Qua.tdb	965.95	TETRAGONAL_U (x(Zr) 0.01789) + BCC_A2 (x(Zr) 0.12686) + BCC_A2#2 (x(Zr) 0.41517)
UZr-18Qua.tdb	935.97	ORTHORHOMBIC_A20 (x(Zr) 0.01405) + TETRAGONAL_U (x(Zr) 0.01756) + BCC_A2 (x(Zr) 0.53892)
UZr-18Qua.tdb	890.68	ORTHORHOMBIC_A20 (x(Zr) 0.0132) + UZR2_DELTA (x(Zr) 0.6414) + BCC_A2 (x(Zr) 0.66954)
UZr-18Qua.tdb	881.2	UZR2_DELTA (x(Zr) 0.78762) + BCC_A2 (x(Zr) 0.80683) + HCP_A3 (x(Zr) 0.99034)
UZr-18Xie.tdb	963.74	TETRAGONAL_U (x(Zr) 0.01171) + BCC_A2 (x(Zr) 0.1124) + BCC_A2#2 (x(Zr) 0.44034)
UZr-18Xie.tdb	934.7	ORTHORHOMBIC_A20 (x(Zr) 0.00797) + TETRAGONAL_U (x(Zr) 0.01093) + BCC_A2 (x(Zr) 0.56358)
UZr-18Xie.tdb	893.38	ORTHORHOMBIC_A20 (x(Zr) 0.00689) + UZR2_DELTA (x(Zr) 0.63621) + BCC_A2 (x(Zr) 0.67271)
UZr-18Xie.tdb	877.28	UZR2_DELTA (x(Zr) 0.79303) + BCC_A2 (x(Zr) 0.81295) + HCP_A3 (x(Zr) 0.98719)
UZr-25Wil.tdb	964.93	TETRAGONAL_U (x(Zr) 0.00552) + ORTHORHOMBIC_A20 (x(Zr) 0.01422) + BCC_A2 (x(Zr) 0.07924)
UZr-25Wil.tdb	955.45	ORTHORHOMBIC_A20 (x(Zr) 0.01623) + BCC_A2#2 (x(Zr) 0.12017) + BCC_A2 (x(Zr) 0.47164)
UZr-25Wil.tdb	883.82	ORTHORHOMBIC_A20 (x(Zr) 0.0133) + UZR2_DELTA (x(Zr) 0.64887) + BCC_A2 (x(Zr) 0.69696)
UZr-25Wil.tdb	877.42	BCC_A2 (x(Zr) 0.82751) + UZR2_DELTA (x(Zr) 0.89189) + HCP_A3 (x(Zr) 0.9883)
UZr-25Wil.tdb	568.87	ORTHORHOMBIC_A20 (x(Zr) 8.800e-4) + UZR2_DELTA (x(Zr) 0.73327) + HCP_A3 (x(Zr) 0.9991)
UZr-98AEA.tdb	954.31	TETRAGONAL_U (x(Zr) 0) + BCC_A2 (x(Zr) 0.09881) + BCC_A2#2 (x(Zr) 0.4569)
UZr-98AEA.tdb	942.02	ORTHORHOMBIC_A20 (x(Zr) 0) + TETRAGONAL_U (x(Zr) 0) + BCC_A2 (x(Zr) 0.51422)
UZr-98AEA.tdb	888.5	ORTHORHOMBIC_A20 (x(Zr) 0) + UZR2_DELTA (x(Zr) 0.69475) + BCC_A2 (x(Zr) 0.70781)
UZr-98AEA.tdb	888.5	ORTHORHOMBIC_A20 (x(Zr) 0) + UZR2_DELTA (x(Zr) 0.69481) + BCC_A2 (x(Zr) 0.70794)
UZr-98AEA.tdb	884.46	UZR2_DELTA (x(Zr) 0.74287) + BCC_A2 (x(Zr) 0.79728) + HCP_A3 (x(Zr) 0.99957)
UZr-98AEA.tdb	688.08	ORTHORHOMBIC_A20 (x(Zr) 0) + UZR2_DELTA (x(Zr) 0.69236) + HCP_A3 (x(Zr) 0.99996)
UZr-98AEA.tdb	688.08	ORTHORHOMBIC_A20 (x(Zr) 0) + UZR2_DELTA (x(Zr) 0.69228) + HCP_A3 (x(Zr) 0.99996)
UZr-98AEA.tdb	320.32	ORTHORHOMBIC_A20 (x(Zr) 0) + UZR2_DELTA (x(Zr) 0.60638) + HCP_A3 (x(Zr) 1)
UZr-98AEA.tdb	320.32	ORTHORHOMBIC_A20 (x(Zr) 0) + UZR2_DELTA (x(Zr) 0.60645) + HCP_A3 (x(Zr) 1)
UZr-98AEA.tdb	320.32	ORTHORHOMBIC_A20 (x(Zr) 0) + UZR2_DELTA (x(Zr) 0.6064) + HCP_A3 (x(Zr) 1)
UZr-98Che.tdb	968.62	TETRAGONAL_U (x(Zr) 0.01971) + BCC_A2 (x(Zr) 0.17954) + BCC_A2#2 (x(Zr) 0.51707)
UZr-98Che.tdb	933	ORTHORHOMBIC_A20 (x(Zr) 0.015) + TETRAGONAL_U (x(Zr) 0.01842) + BCC_A2 (x(Zr) 0.61721)
UZr-98Che.tdb	880.85	ORTHORHOMBIC_A20 (x(Zr) 0.01319) + U3ZR7 (x(Zr) 0.7) + BCC_A2 (x(Zr) 0.71134)
UZr-98Che.tdb	880.35	U3ZR7 (x(Zr) 0.7) + BCC_A2 (x(Zr) 0.72859) + HCP_A3 (x(Zr) 0.99745)
UZr-98Che.tdb	880.35	U3ZR7 (x(Zr) 0.7) + BCC_A2 (x(Zr) 0.72891) + HCP_A3 (x(Zr) 0.99745)
UZr-98Kur.tdb	962.14	TETRAGONAL_U (x(Zr) 0.01584) + BCC_A2 (x(Zr) 0.12163) + BCC_A2#2 (x(Zr) 0.43845)
UZr-98Kur.tdb	934.74	ORTHORHOMBIC_A20 (x(Zr) 0.01294) + TETRAGONAL_U (x(Zr) 0.01593) + BCC_A2 (x(Zr) 0.56698)
UZr-98Kur.tdb	890.13	ORTHORHOMBIC_A20 (x(Zr) 0.01223) + UZR2_DELTA (x(Zr) 0.63811) + BCC_A2 (x(Zr) 0.70532)
UZr-98Kur.tdb	879.37	UZR2_DELTA (x(Zr) 0.79473) + BCC_A2 (x(Zr) 0.83628) + HCP_A3 (x(Zr) 0.98983)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull UZr-04Che-LB · CALPHAD hull UZr-10Kur · CALPHAD hull UZr-13Xio · CALPHAD hull UZr-18Qua · CALPHAD hull UZr-18Xie · CALPHAD hull UZr-98AEA · CALPHAD hull UZr-98Che · CALPHAD hull UZr-98Kur

Invariant reactions (literature)

Invariant reactions reported in the literature for the U–Zr system (30)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
967.7	γ ↔ γ' + β(U)	γ: Zr 0.11; γ': Zr 0.48; β(U): Zr 0.019	model	[1] Xiong 2013 cites Kurata 2010	Table 1, p. 4, row 2 report
966	γ ↔ γ' + β(U)	γ: Zr 0.11; γ': Zr 0.424; β(U): Zr 0.0106	experimental	[1] Xiong 2013 cites Zegler 1962 doi	Table 1, p. 4, row 7 report
966	γ ↔ γ' + β(U)	γ: Zr 0.109; γ': Zr 0.424; β(U): Zr 0.011	model	[1] Xiong 2013 cites Sheldon 1989 doi	Table 1, p. 4, row 4 report
966	γ ↔ γ' + β(U)	γ: Zr 0.145; γ': Zr 0.57; β(U): Zr 0.025	experimental	[1] Xiong 2013 cites Summers-Smith 1955	Table 1, p. 4, row 6 report
965.5	γ ↔ γ' + β(U)	γ: Zr 0.172; γ': Zr 0.446; β(U): Zr 0.01	model	[1] Xiong 2013 cites Chevalier 2004 doi	Table 1, p. 4, row 1 report
963.7	γ ↔ γ' + β(U)	γ: Zr 0.112; γ': Zr 0.44; β(U): Zr 0.012	model	[1] Xiong 2013	Table 1, p. 4, row 3 report
961	γ ↔ γ' + β(U)	γ: Zr 0.097; γ': Zr 0.47	model	[1] Xiong 2013 cites Baker 1992	Table 1, p. 4, row 5 report
937	β(U) ↔ α(U) + γ	β(U): Zr 0.019; γ: Zr 0.626	model	[1] Xiong 2013 cites Kurata 2010	Table 1, p. 4, row 9 report
935	β(U) ↔ α(U) + γ	β(U): Zr 0.015; γ: Zr 0.61	experimental	[1] Xiong 2013 cites Summers-Smith 1955	Table 1, p. 4, row 13 report
935	β(U) ↔ α(U) + γ	α(U): Zr 0.0055	experimental	[1] Xiong 2013 cites Zegler 1962 doi	Table 1, p. 4, row 14 report
935	β(U) ↔ α(U) + γ	β(U): Zr 0.008; γ: Zr 0.6	model	[1] Xiong 2013 cites Sheldon 1989 doi	Table 1, p. 4, row 11 report
934.7	β(U) ↔ α(U) + γ	β(U): Zr 0.011; γ: Zr 0.563	model	[1] Xiong 2013	Table 1, p. 4, row 10 report
934.2	β(U) ↔ α(U) + γ	β(U): Zr 0.01; γ: Zr 0.554	model	[1] Xiong 2013 cites Chevalier 2004 doi	Table 1, p. 4, row 8 report
932	β(U) ↔ α(U) + γ	β(U): Zr 0.011; γ: Zr 0.57	model	[1] Xiong 2013 cites Baker 1992	Table 1, p. 4, row 12 report
893.3	γ + α(U) ↔ δ	γ: Zr 0.673; α(U): Zr 0.0069; δ: Zr 0.636	model	[1] Xiong 2013	Table 1, p. 4, row 17 report
890	γ + α(U) ↔ δ	γ: Zr 0.66; α(U): Zr 0.005; δ: Zr 0.63	model	[1] Xiong 2013 cites Sheldon 1989 doi	Table 1, p. 4, row 18 report
890	γ + α(U) ↔ δ	δ: Zr 0.625	experimental	[1] Xiong 2013 cites Duffey 1958	Table 1, p. 4, row 21 report
888.4	γ ↔ α(U) + δ	γ: Zr 0.641; α(U): Zr 0.007; δ: Zr 0.64	model	[1] Xiong 2013 cites Chevalier 2004 doi	Table 1, p. 4, row 15 report
887.8	γ + α(U) ↔ δ	γ: Zr 0.779; α(U): Zr 0.016; δ: Zr 0.635	model	[1] Xiong 2013 cites Kurata 2010	Table 1, p. 4, row 16 report
885	γ + α(U) ↔ δ	δ: U 0.333333, Zr 0.666667	experimental	[1] Xiong 2013 cites Holden 1956	Table 1, p. 4, row 20 report
885	γ + α(U) ↔ δ	γ: Zr 0.68; α(U): Zr 0.005; δ: Zr 0.65	model	[1] Xiong 2013 cites Baker 1992	Table 1, p. 4, row 19 report
883.5	γ ↔ δ + α(Zr)	γ: Zr 0.814; δ: Zr 0.752; α(Zr): Zr 0.982	model	[1] Xiong 2013 cites Kurata 2010	Table 1, p. 4, row 24 report
883	γ ↔ δ + α(Zr)	γ: Zr 0.78; δ: Zr 0.76; α(Zr): Zr 0.996	model	[1] Xiong 2013 cites Baker 1992	Table 1, p. 4, row 27 report
882.9	γ ↔ δ + α(Zr)	γ: Zr 0.801; δ: Zr 0.783; α(Zr): Zr 0.995	model	[1] Xiong 2013 cites Chevalier 2004 doi	Table 1, p. 4, row 23 report
880	γ + α(U) ↔ δ	δ: U 0.333333, Zr 0.666667	experimental	[1] Xiong 2013 cites Rough 1956 doi	Table 1, p. 4, row 22 report
879	γ ↔ δ + α(Zr)	γ: Zr 0.81; δ: Zr 0.78; α(Zr): Zr 0.996	model	[1] Xiong 2013 cites Sheldon 1989 doi	Table 1, p. 4, row 26 report
879	γ ↔ δ + α(Zr)	γ: Zr 0.761; δ: U 0.333333, Zr 0.666667	experimental	[1] Xiong 2013 cites Duffey 1958	Table 1, p. 4, row 29 report
877.2	γ ↔ δ + α(Zr)	γ: Zr 0.813; δ: Zr 0.793; α(Zr): Zr 0.987	model	[1] Xiong 2013	Table 1, p. 4, row 25 report
868	γ ↔ δ + α(Zr)	δ: U 0.333333, Zr 0.666667	experimental	[1] Xiong 2013 cites Holden 1956	Table 1, p. 4, row 28 report
866	γ ↔ δ + α(Zr)	δ: U 0.333333, Zr 0.666667	experimental	[1] Xiong 2013 cites Rough 1956 doi	Table 1, p. 4, row 30 report

Other properties

Phase transition (16)

Phase transition, U–Zr system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	879.35 K	879.35	δ + bcc_A2 alloy: U 0.219, Zr 0.781	experimental	[2] Chevalier 1998 cites Duey 1958	Table 18, p. 18, row 8 report
Phase transition	879.4 K	879.4	δ + bcc_A2 alloy: U 0.204, Zr 0.796	experimental	[2] Chevalier 1998 cites Duey 1958	Table 18, p. 18, row 9 report
Phase transition	880.05 K	880.05	δ + bcc_A2 alloy: U 0.246, Zr 0.754	experimental	[2] Chevalier 1998 cites Duey 1958	Table 18, p. 18, row 7 report
Phase transition	880.65 K	880.65	other: wt% Zr 60 (x(Zr) 0.796), T upper alloy: U 0.204, Zr 0.796	experimental	[2] Chevalier 1998 cites Duey 1958	Table 18, p. 18, row 16 report
Phase transition	881.2 K	881.2	δ + bcc_A2 alloy: U 0.262, Zr 0.738	experimental	[2] Chevalier 1998 cites Duey 1958	Table 18, p. 18, row 6 report
Phase transition	881.35 K	881.35	δ + bcc_A2 alloy: U 0.277, Zr 0.723	experimental	[2] Chevalier 1998 cites Duey 1958	Table 18, p. 18, row 5 report
Phase transition	882.45 K	882.45	δ + bcc_A2 alloy: U 0.293, Zr 0.707	experimental	[2] Chevalier 1998 cites Duey 1958	Table 18, p. 18, row 4 report
Phase transition	882.55 K	882.55	other: wt% Zr 54 (x(Zr) 0.754), T upper alloy: U 0.246, Zr 0.754	experimental	[2] Chevalier 1998 cites Duey 1958	Table 18, p. 18, row 15 report
Phase transition	884.25 K	884.25	other: wt% Zr 52 (x(Zr) 0.738), T upper alloy: U 0.262, Zr 0.738	experimental	[2] Chevalier 1998 cites Duey 1958	Table 18, p. 18, row 14 report
Phase transition	884.45 K	884.45	other: wt% Zr 50 (x(Zr) 0.723), T upper alloy: U 0.277, Zr 0.723	experimental	[2] Chevalier 1998 cites Duey 1958	Table 18, p. 18, row 13 report
Phase transition	884.8 K	884.8	δ + bcc_A2 alloy: U 0.31, Zr 0.69	experimental	[2] Chevalier 1998 cites Duey 1958	Table 18, p. 18, row 3 report
Phase transition	885.95 K	885.95	other: wt% Zr 48 (x(Zr) 0.707), T upper alloy: U 0.293, Zr 0.707	experimental	[2] Chevalier 1998 cites Duey 1958	Table 18, p. 18, row 12 report
Phase transition	886.9 K	886.9	δ + bcc_A2 alloy: U 0.328, Zr 0.672	experimental	[2] Chevalier 1998 cites Duey 1958	Table 18, p. 18, row 2 report
Phase transition	887.6 K	887.6	δ + bcc_A2 alloy: U 0.365, Zr 0.635	experimental	[2] Chevalier 1998 cites Duey 1958	Table 18, p. 18, row 1 report
Phase transition	889.15 K	889.15	other: wt% Zr 40 (x(Zr) 0.635), T upper alloy: U 0.365, Zr 0.635	experimental	[2] Chevalier 1998 cites Duey 1958	Table 18, p. 18, row 10 report
Phase transition	890.65 K	890.65	other: wt% Zr 44 (x(Zr) 0.672), T upper alloy: U 0.328, Zr 0.672	experimental	[2] Chevalier 1998 cites Duey 1958	Table 18, p. 18, row 11 report

Activity / EMF / Gibbs energy (20)

Activity / EMF / Gibbs energy, U–Zr system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Activity U printed: a_U	0.784 1	1773	UNKNOWN alloy: U 0.86, Zr 0.14	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 5 report
Activity U printed: a_U	0.384 1	1773	UNKNOWN alloy: U 0.654, Zr 0.346	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 4 report
Activity U printed: a_U	0.029 1	1773	UNKNOWN alloy: U 0.098, Zr 0.902	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 1 report
Activity U printed: a_U	0.221 1	1773	UNKNOWN alloy: U 0.285, Zr 0.715	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 2 report
Activity U printed: a_U	0.231 1	1773	UNKNOWN alloy: U 0.478, Zr 0.522	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 3 report
Activity Zr printed: a_Zr	0.033 1	1773	UNKNOWN alloy: U 0.86, Zr 0.14	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 5 report
Activity Zr printed: a_Zr	0.24 1	1773	UNKNOWN alloy: U 0.654, Zr 0.346	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 4 report
Activity Zr printed: a_Zr	0.861 1	1773	UNKNOWN alloy: U 0.098, Zr 0.902	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 1 report
Activity Zr printed: a_Zr	0.571 1	1773	UNKNOWN alloy: U 0.285, Zr 0.715	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 2 report
Activity Zr printed: a_Zr	0.557 1	1773	UNKNOWN alloy: U 0.478, Zr 0.522	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 3 report
Chemical potential printed: ΔG_Zr	-50287 J/mol	1773	UNKNOWN alloy: U 0.86, Zr 0.14	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 5 report
Chemical potential printed: ΔG_U	-3587 J/mol	1773	UNKNOWN alloy: U 0.86, Zr 0.14	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 5 report
Chemical potential printed: ΔG_Zr	-21038 J/mol	1773	UNKNOWN alloy: U 0.654, Zr 0.346	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 4 report
Chemical potential printed: ΔG_U	-14109 J/mol	1773	UNKNOWN alloy: U 0.654, Zr 0.346	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 4 report
Chemical potential printed: ΔG_U	-52191 J/mol	1773	UNKNOWN alloy: U 0.098, Zr 0.902	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 1 report
Chemical potential printed: ΔG_Zr	-2206 J/mol	1773	UNKNOWN alloy: U 0.098, Zr 0.902	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 1 report
Chemical potential printed: ΔG_U	-22254 J/mol	1773	UNKNOWN alloy: U 0.285, Zr 0.715	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 2 report
Chemical potential printed: ΔG_Zr	-8261 J/mol	1773	UNKNOWN alloy: U 0.285, Zr 0.715	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 2 report
Chemical potential printed: ΔG_U	-21601 J/mol	1773	UNKNOWN alloy: U 0.478, Zr 0.522	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 3 report
Chemical potential printed: ΔG_Zr	-8626 J/mol	1773	UNKNOWN alloy: U 0.478, Zr 0.522	experimental	[2] Chevalier 1998 cites Kanno 1988 doi	Table 19, p. 18, row 3 report

Sources

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

Wei Xiong, Wei Xie, Chao Shen, Dane Morgan, Thermodynamic modeling of the U–Zr system – A revisit, Journal of Nuclear Materials 443, 331-341 (2013). doi:10.1016/j.jnucmat.2013.07.034
P.Y. Chevalier, E. Fischer, Thermodynamic modelling of the O–U–Zr system, Journal of Nuclear Materials 257, 213-255 (1998). doi:10.1016/s0022-3115(98)00450-4

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}
}