Mo–U system

13 accepted literature values from 2 paper(s) (experimental 4, model 8, unspecified 1); 3 calculated phase diagram(s).

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (7) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	4
model	8
unspecified	1

Accepted values by property group
Property group	Values
invariant reaction	11
phase transition	2

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
MoU-10Zha.tdb	X. Zhang, Y.F. Cui, G.L. Xu, W.J. Zhu, H.S. Liu, B.Y. Yin, Z.P. Jin, J. Nucl. Mater., 402, 15-24(2010). doi:10.1016/j.jnucmat.2010.04.018	`dd7e1234616d41e7af36b2990760c6fbbdd1152283a385e29a56ac3658fc55d3`	viewer · TDB · JSON
MoU-11Ber.tdb	A. Berche, N. Dupin, C. Gueneau, C. Rado, B. Sundman, J.C. Dumas, J. Nucl. Mater., 411, 131-43(2011). doi:10.1016/j.jnucmat.2011.01.043	`2c72abc73554f01c2338bd9814e5ae78f2d8b29817b18ca6463b98d7fb7aedbe`	viewer · TDB · JSON
MoU-18Cor.tdb	E.C. Corcoran, J.-L. Fleche, N. Dupin, B. Sundman, C. Gueneau, Calphad, 63, 196-211(2018). doi:10.1016/j.calphad.2018.10.002	`767b266713c06987ee06c8f98ad715d7b71da730c79d4dca59777b4346ecc00e`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
MoU-10Zha.tdb	1556.7	BCC_A2 (x(U) 0.00866) + BCC_A2#2 (x(U) 0.58211) + LIQUID (x(U) 0.71336)
MoU-10Zha.tdb	913.61	BCC_A2 (x(U) 0.87212) + TETRAGONAL_U (x(U) 0.96883) + ORTHORHOMBIC_A20 (x(U) 0.97917)
MoU-10Zha.tdb	854.52	BCC_A2#2 (x(U) 5.100e-4) + BCC_A2 (x(U) 0.58078) + MOU2_C11B (x(U) 0.66667)
MoU-10Zha.tdb	854.52	BCC_A2 (x(U) 5.100e-4) + BCC_A2#2 (x(U) 0.58079) + MOU2_C11B (x(U) 0.66667)
MoU-10Zha.tdb	828.61	MOU2_C11B (x(U) 0.66667) + BCC_A2 (x(U) 0.78922) + ORTHORHOMBIC_A20 (x(U) 0.9606)
MoU-11Ber.tdb	1574.76	BCC_A2 (x(U) 0.00942) + BCC_A2#2 (x(U) 0.56349) + LIQUID (x(U) 0.72224)
MoU-11Ber.tdb	915.86	BCC_A2 (x(U) 0.87196) + TETRAGONAL_U (x(U) 0.98742) + ORTHORHOMBIC_A20 (x(U) 0.99855)
MoU-11Ber.tdb	841.64	BCC_A2#2 (x(U) 1.000e-5) + MOU2_C11B (x(U) 0.66667) + BCC_A2 (x(U) 0.6893)
MoU-11Ber.tdb	841.64	BCC_A2 (x(U) 1.000e-5) + MOU2_C11B (x(U) 0.66667) + BCC_A2#2 (x(U) 0.68931)
MoU-11Ber.tdb	841.64	BCC_A2 (x(U) 1.000e-5) + MOU2_C11B (x(U) 0.66667) + BCC_A2#2 (x(U) 0.68929)
MoU-11Ber.tdb	827.85	MOU2_C11B (x(U) 0.66667) + BCC_A2 (x(U) 0.76268) + ORTHORHOMBIC_A20 (x(U) 0.99877)
MoU-11Ber.tdb	827.85	MOU2_C11B (x(U) 0.66667) + BCC_A2 (x(U) 0.76245) + ORTHORHOMBIC_A20 (x(U) 0.99877)
MoU-18Cor.tdb	1570.35	BCC_A2 (x(U) 0.01508) + BCC_A2#2 (x(U) 0.54881) + LIQUID (x(U) 0.6993)
MoU-18Cor.tdb	932.24	BCC_A2 (x(U) 0.89822) + TETRAGONAL_U (x(U) 0.99426) + ORTHORHOMBIC_A20 (x(U) 0.99818)
MoU-18Cor.tdb	849.99	BCC_A2#2 (x(U) 1.000e-5) + MOU2_C11B (x(U) 0.66667) + BCC_A2 (x(U) 0.68945)
MoU-18Cor.tdb	849.99	BCC_A2 (x(U) 1.000e-5) + MOU2_C11B (x(U) 0.66667) + BCC_A2#2 (x(U) 0.68947)
MoU-18Cor.tdb	849.99	BCC_A2 (x(U) 1.000e-5) + MOU2_C11B (x(U) 0.66667) + BCC_A2#2 (x(U) 0.68942)
MoU-18Cor.tdb	822.8	MOU2_C11B (x(U) 0.66667) + BCC_A2 (x(U) 0.77525) + ORTHORHOMBIC_A20 (x(U) 0.99803)
MoU-18Cor.tdb	822.8	MOU2_C11B (x(U) 0.66667) + BCC_A2 (x(U) 0.7751) + ORTHORHOMBIC_A20 (x(U) 0.99803)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull MoU-10Zha · CALPHAD hull MoU-11Ber

Invariant reactions (literature)

Invariant reactions reported in the literature for the Mo–U system (11)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1575	Liquid + (Mo) -> (γ-U)	L: U 0.722; (Mo): U 0.009; (γ-U): U 0.563	model	[1] Berche 2011	Table 3, p. 6, row 1 report
1557	peritectic: L + Mo -> BCC_A2	L: U 0.713; Mo: U 0.009; BCC_A2: U 0.582	model	[2] Zhang 2010	Table 3, p. 6, row 2 report
1557	peritectic: L + Mo -> BCC_A2	L: U 0.7; Mo: U 0.61	experimental	[2] Zhang 2010 cites Ackermann 1977 doi	Table 3, p. 6, row 1 report
913	eutectoid: tetr_U -> BCC_A2 + ort_A20	tetr_U: U 0.969; BCC_A2: U 0.979; ort_A20: U 0.874	model	[2] Zhang 2010	Table 3, p. 6, row 8 report
912	eutectoid: tetr_U -> BCC_A2 + ort_A20	tetr_U: U 0.895	experimental	[2] Zhang 2010 cites Dwight 1960 doi	Table 3, p. 6, row 7 report
854	eutectoid: BCC_A2 -> Mo + MoU2	BCC_A2: U 0.581; Mo: U 0.001; MoU2: U 0.667	model	[2] Zhang 2010	Table 3, p. 6, row 4 report
853	eutectoid: BCC_A2 -> Mo + MoU2	MoU2: U 0.667	experimental	[2] Zhang 2010 cites Massalski 1990	Table 3, p. 6, row 3 report
842	(Mo) + (γ-U) -> MoU2	(Mo): U 0; (γ-U): U 0.689; MoU2: U 0.667	model	[1] Berche 2011	Table 3, p. 6, row 3 report
838	eutectoid: BCC_A2 -> MoU2 + ort_A20	BCC_A2: U 0.775; MoU2: U 0.666667	experimental	[2] Zhang 2010 cites Dwight 1960 doi	Table 3, p. 6, row 5 report
829	eutectoid: BCC_A2 -> MoU2 + ort_A20	BCC_A2: U 0.789; MoU2: U 0.667; ort_A20: U 0.961	model	[2] Zhang 2010	Table 3, p. 6, row 6 report
828	(γ-U) -> (α-U) + MoU2	(γ-U): U 0.763; (α-U): U 0.999; MoU2: U 0.667	model	[1] Berche 2011	Table 3, p. 6, row 4 report

Other properties

Phase transition (2)

Phase transition, Mo–U system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	875 K	875	congruent transformation: MoU2 -> BCC_A2 MoU2: U 0.667	unspecified	[2] Zhang 2010 cites Brewer 1980	Table 3, p. 6, row 9 report
Phase transition	875 K	875	congruent transformation: MoU2 -> BCC_A2 MoU2: U 0.667	model	[2] Zhang 2010	Table 3, p. 6, row 10 report

Sources

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

A. Berche, N. Dupin, C. Guéneau, C. Rado, B. Sundman, J.C. Dumas, Calphad thermodynamic description of some binary systems involving U, Journal of Nuclear Materials 411, 131-143 (2011). doi:10.1016/j.jnucmat.2011.01.043
X. Zhang, Y.F. Cui, G.L. Xu, W.J. Zhu, H.S. Liu, B.Y. Yin et al., Thermodynamic assessment of the U–Mo–Al system, Journal of Nuclear Materials 402, 15-24 (2010). doi:10.1016/j.jnucmat.2010.04.018

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}
}