Ru–U system

64 accepted literature values from 1 paper(s) (experimental 42, model 22); 1 calculated phase diagram(s).

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (12) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	42
model	22

Accepted values by property group
Property group	Values
invariant reaction	64

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
RuU-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	`10085bc2e845e4f37b35baed191ababdbda85e4d413cad0b830de2feda135bb0`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
RuU-11Ber.tdb	1848.87	HCP_A3 (x(U) 3.000e-5) + LIQUID (x(U) 0.16047) + RU3U_L12 (x(U) 0.25)
RuU-11Ber.tdb	1848.87	HCP_A3 (x(U) 3.000e-5) + LIQUID (x(U) 0.16044) + RU3U_L12 (x(U) 0.25)
RuU-11Ber.tdb	1466.23	RU3U_L12 (x(U) 0.25) + RU5U3 (x(U) 0.375) + LIQUID (x(U) 0.44133)
RuU-11Ber.tdb	1466.23	RU3U_L12 (x(U) 0.25) + RU5U3 (x(U) 0.375) + LIQUID (x(U) 0.44132)
RuU-11Ber.tdb	1451.77	RU5U3 (x(U) 0.375) + RU4U3 (x(U) 0.42857) + LIQUID (x(U) 0.45122)
RuU-11Ber.tdb	1451.77	RU5U3 (x(U) 0.375) + RU4U3 (x(U) 0.42857) + LIQUID (x(U) 0.45123)
RuU-11Ber.tdb	1411.57	RU4U3 (x(U) 0.42857) + LIQUID (x(U) 0.50205) + RUU_HT (x(U) 0.52)
RuU-11Ber.tdb	1411.57	RU4U3 (x(U) 0.42857) + LIQUID (x(U) 0.50219) + RUU_HT (x(U) 0.52)
RuU-11Ber.tdb	1411.57	RU4U3 (x(U) 0.42857) + LIQUID (x(U) 0.50164) + RUU_HT (x(U) 0.52)
RuU-11Ber.tdb	1407.99	RU3U_L12 (x(U) 0.25) + BCC_A2 (x(U) 1) + LIQUID (x(U) 1)
RuU-11Ber.tdb	1218.09	RUU_HT (x(U) 0.52) + RUU2 (x(U) 0.66667) + LIQUID (x(U) 0.73002)
RuU-11Ber.tdb	1218.09	RUU_HT (x(U) 0.52) + RUU2 (x(U) 0.66667) + LIQUID (x(U) 0.7304)
RuU-11Ber.tdb	1149.14	RUU2 (x(U) 0.66667) + LIQUID (x(U) 0.81425) + BCC_A2 (x(U) 0.92248)
RuU-11Ber.tdb	1149.14	RUU2 (x(U) 0.66667) + LIQUID (x(U) 0.81434) + BCC_A2 (x(U) 0.92254)
RuU-11Ber.tdb	1060	RU4U3 (x(U) 0.42857) + RUU_LT (x(U) 0.52) + RUU_HT (x(U) 0.52)
RuU-11Ber.tdb	1060	RUU_HT (x(U) 0.52) + RUU_LT (x(U) 0.52) + RUU2 (x(U) 0.66667)
RuU-11Ber.tdb	962.06	RUU2 (x(U) 0.66667) + BCC_A2 (x(U) 0.94711) + TETRAGONAL_U (x(U) 0.97921)
RuU-11Ber.tdb	900.42	RUU2 (x(U) 0.66667) + TETRAGONAL_U (x(U) 0.98582) + ORTHORHOMBIC_A20 (x(U) 1)
RuU-11Ber.tdb	900.42	RUU2 (x(U) 0.66667) + TETRAGONAL_U (x(U) 0.98585) + ORTHORHOMBIC_A20 (x(U) 1)

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the Ru–U system (64)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
2123.15	Liquid + hcp -> Ru3U	Ru3U: Ru 0.75, U 0.25	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 3 report
2123	Liquid + hcp <=> Ru3U	Ru3U: Ru 0.75, U 0.25	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 35 report
1998.15	congruent melting: Liquid -> Ru3U	L: Ru 0.75, U 0.25; Ru3U: Ru 0.75, U 0.25	model	[1] Berche 2011	Table 6, p. 12, row 4 report
1998	congruent melting: Liquid <=> Ru3U	Liquid: Ru 0.75, U 0.25; Ru3U: Ru 0.75, U 0.25	model	[1] Berche 2011	Table 6, p. 12, row 36 report
1938.15	congruent melting: Liquid -> Ru3U	L: Ru 0.75, U 0.25; Ru3U: Ru 0.75, U 0.25	experimental	[1] Berche 2011 cites Mason 1994 doi	Table 6, p. 12, row 5 report
1938	congruent melting: Liquid <=> Ru3U	Liquid: Ru 0.75, U 0.25; Ru3U: Ru 0.75, U 0.25	experimental	[1] Berche 2011 cites Mason 1994 doi	Table 6, p. 12, row 37 report
1861.15	eutectic: Liquid -> Ru3U + hcp	Ru3U: Ru 0.75, U 0.25	experimental	[1] Berche 2011 cites Mason 1994 doi	Table 6, p. 12, row 2 report
1861	Liquid <=> Ru3U + hcp	Ru3U: Ru 0.75, U 0.25	experimental	[1] Berche 2011 cites Mason 1994 doi	Table 6, p. 12, row 34 report
1849.15	eutectic: Liquid -> Ru3U + hcp	Ru3U: Ru 0.75, U 0.25	model	[1] Berche 2011	Table 6, p. 12, row 1 report
1849	Liquid <=> Ru3U + hcp	Ru3U: Ru 0.75, U 0.25	model	[1] Berche 2011	Table 6, p. 12, row 33 report
1466.15	Liquid + Ru3U -> Ru5U3	Ru3U: Ru 0.75, U 0.25; Ru5U3: Ru 0.625, U 0.375	model	[1] Berche 2011	Table 6, p. 12, row 6 report
1466	Liquid + Ru3U <=> Ru5U3	Ru3U: Ru 0.75, U 0.25; Ru5U3: Ru 0.625, U 0.375	model	[1] Berche 2011	Table 6, p. 12, row 38 report
1460.15	Liquid + Ru3U -> Ru5U3	Ru3U: Ru 0.75, U 0.25; Ru5U3: Ru 0.625, U 0.375	experimental	[1] Berche 2011 cites Mason 1994 doi	Table 6, p. 12, row 7 report
1460	Liquid + Ru3U <=> Ru5U3	Ru3U: Ru 0.75, U 0.25; Ru5U3: Ru 0.625, U 0.375	experimental	[1] Berche 2011 cites Mason 1994 doi	Table 6, p. 12, row 39 report
1455.15	Liquid + Ru3U -> Ru5U3	Ru3U: Ru 0.75, U 0.25; Ru5U3: Ru 0.625, U 0.375	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 8 report
1455	Liquid + Ru3U <=> Ru5U3	Ru3U: Ru 0.75, U 0.25; Ru5U3: Ru 0.625, U 0.375	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 40 report
1452.15	Liquid + Ru5U3 -> Ru4U3	Ru5U3: Ru 0.625, U 0.375; Ru4U3: Ru 0.571429, U 0.428571	model	[1] Berche 2011	Table 6, p. 12, row 9 report
1452	Liquid + Ru5U3 <=> Ru4U3	Ru5U3: Ru 0.625, U 0.375; Ru4U3: Ru 0.571429, U 0.428571	model	[1] Berche 2011	Table 6, p. 12, row 41 report
1439.15	Liquid + Ru5U3 -> Ru4U3	Ru5U3: Ru 0.625, U 0.375; Ru4U3: Ru 0.571429, U 0.428571	experimental	[1] Berche 2011 cites Mason 1994 doi	Table 6, p. 12, row 10 report
1439	Liquid + Ru5U3 <=> Ru4U3	Ru5U3: Ru 0.625, U 0.375; Ru4U3: Ru 0.571429, U 0.428571	experimental	[1] Berche 2011 cites Mason 1994 doi	Table 6, p. 12, row 42 report
1436.15	Liquid + Ru5U3 -> Ru4U3	Ru5U3: Ru 0.625, U 0.375; Ru4U3: Ru 0.571429, U 0.428571	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 11 report
1436	Liquid + Ru5U3 <=> Ru4U3	Ru5U3: Ru 0.625, U 0.375; Ru4U3: Ru 0.571429, U 0.428571	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 43 report
1431.15	congruent melting: Liquid -> RuU-H	L: Ru 0.48, U 0.52; RuU-H: Ru 0.48, U 0.52	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 17 report
1431	congruent melting: Liquid <=> RuU-H	Liquid: Ru 0.48, U 0.52; RuU-H: Ru 0.48, U 0.52	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 49 report
1421.15	eutectic: Liquid -> RuU-H + Ru4U3	RuU-H: Ru 0.48, U 0.52; Ru4U3: Ru 0.571429, U 0.428571	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 13 report
1421	Liquid <=> RuU-H + Ru4U3	RuU-H: Ru 0.48, U 0.52; Ru4U3: Ru 0.571429, U 0.428571	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 45 report
1414	congruent melting: Liquid <=> RuU-H	Liquid: Ru 0.48, U 0.52; RuU-H: Ru 0.48, U 0.52	model	[1] Berche 2011	Table 6, p. 12, row 48 report
1413.15	congruent melting: Liquid -> RuU-H	L: Ru 0.48, U 0.52; RuU-H: Ru 0.48, U 0.52	model	[1] Berche 2011	Table 6, p. 12, row 16 report
1412	Liquid <=> RuU-H + Ru4U3	RuU-H: Ru 0.48, U 0.52; Ru4U3: Ru 0.571429, U 0.428571	model	[1] Berche 2011	Table 6, p. 12, row 44 report
1411.15	eutectic: Liquid -> RuU-H + Ru4U3	RuU-H: Ru 0.48, U 0.52; Ru4U3: Ru 0.571429, U 0.428571	model	[1] Berche 2011	Table 6, p. 12, row 12 report
1218.15	Liquid + RuU-H -> RuU2	RuU-H: Ru 0.48, U 0.52; RuU2: Ru 0.333333, U 0.666667	model	[1] Berche 2011	Table 6, p. 12, row 18 report
1218	Liquid + RuU-H <=> RuU2	RuU-H: Ru 0.48, U 0.52; RuU2: Ru 0.333333, U 0.666667	model	[1] Berche 2011	Table 6, p. 12, row 50 report
1210.15	Liquid + RuU-H -> RuU2	RuU-H: Ru 0.48, U 0.52; RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 19 report
1210	Liquid + RuU-H <=> RuU2	RuU-H: Ru 0.48, U 0.52; RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 51 report
1170.15	Liquid + RuU-H -> RuU2	RuU-H: Ru 0.48, U 0.52; RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Berndt 1965	Table 6, p. 12, row 20 report
1170	Liquid + RuU-H <=> RuU2	RuU-H: Ru 0.48, U 0.52; RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Berndt 1965	Table 6, p. 12, row 52 report
1159.15	eutectic: Liquid -> bcc + RuU2	RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 22 report
1159	Liquid <=> bcc + RuU2	RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 54 report
1149.15	eutectic: Liquid -> bcc + RuU2	RuU2: Ru 0.333333, U 0.666667	model	[1] Berche 2011	Table 6, p. 12, row 21 report
1149	Liquid <=> bcc + RuU2	RuU2: Ru 0.333333, U 0.666667	model	[1] Berche 2011	Table 6, p. 12, row 53 report
1068.15	polymorphic: RuU-H -> RuU-L	RuU-H: Ru 0.48, U 0.52; RuU-L: Ru 0.48, U 0.52	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 15 report
1068	polymorphic: RuU-H <=> RuU-L	RuU-H: Ru 0.48, U 0.52; RuU-L: Ru 0.48, U 0.52	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 47 report
1060.15	polymorphic: RuU-H -> RuU-L	RuU-H: Ru 0.48, U 0.52; RuU-L: Ru 0.48, U 0.52	model	[1] Berche 2011	Table 6, p. 12, row 14 report
1060	polymorphic: RuU-H <=> RuU-L	RuU-H: Ru 0.48, U 0.52; RuU-L: Ru 0.48, U 0.52	model	[1] Berche 2011	Table 6, p. 12, row 46 report
983.15	bcc -> β-U + RuU2	RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Hills 1965 doi	Table 6, p. 12, row 25 report
983	bcc <=> β-U + RuU2	RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Hills 1965 doi	Table 6, p. 12, row 57 report
966.15	bcc -> β-U + RuU2	RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Dwight 1958	Table 6, p. 12, row 24 report
966	bcc <=> β-U + RuU2	RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Dwight 1958	Table 6, p. 12, row 56 report
965.15	bcc -> β-U + RuU2	RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Abou-Zahra 1976 doi	Table 6, p. 12, row 27 report
965	bcc <=> β-U + RuU2	RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Abou-Zahra 1976 doi	Table 6, p. 12, row 59 report
964.15	bcc -> β-U + RuU2	RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 26 report
964	bcc <=> β-U + RuU2	RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 58 report
962	bcc <=> β-U + RuU2	RuU2: Ru 0.333333, U 0.666667	model	[1] Berche 2011	Table 6, p. 12, row 55 report
959.15	bcc -> β-U + RuU2	RuU2: Ru 0.333333, U 0.666667	model	[1] Berche 2011	Table 6, p. 12, row 23 report
913.15	β-U -> α-U + RuU2	RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Hills 1965 doi	Table 6, p. 12, row 30 report
913	β-U <=> α-U + RuU2	RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Hills 1965 doi	Table 6, p. 12, row 62 report
906.15	β-U -> α-U + RuU2	RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Abou-Zahra 1976 doi	Table 6, p. 12, row 32 report
906	β-U <=> α-U + RuU2	RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Abou-Zahra 1976 doi	Table 6, p. 12, row 64 report
900	β-U <=> α-U + RuU2	RuU2: Ru 0.333333, U 0.666667	model	[1] Berche 2011	Table 6, p. 12, row 60 report
898.15	β-U -> α-U + RuU2	RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 31 report
898	β-U <=> α-U + RuU2	RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Park 1968 doi	Table 6, p. 12, row 63 report
895.15	β-U -> α-U + RuU2	RuU2: Ru 0.333333, U 0.666667	model	[1] Berche 2011	Table 6, p. 12, row 28 report
891.15	β-U -> α-U + RuU2	RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Dwight 1958	Table 6, p. 12, row 29 report
891	β-U <=> α-U + RuU2	RuU2: Ru 0.333333, U 0.666667	experimental	[1] Berche 2011 cites Dwight 1958	Table 6, p. 12, row 61 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

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}
}