Thermo-physical properties of DU–10wt.% Mo alloys

Burkes, Douglas E.; Papesch, Cynthia A.; Maddison, Andrew P.; Hartmann, Thomas; Rice, Francine J.

doi:10.1016/j.jnucmat.2010.06.018

Cited by 70 publications

(49 citation statements)

References 14 publications

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“…LEU fuels are considered to be ~ 20 % enriched (only one in every five uranium atoms is fissile U-235 and the remaining four atoms are non-fissile U-238) that requires a large increase in fissile uranium per unit volume (the uranium density) to compensate for the reduction in enrichment [6,[9][10][11][12]. UMo alloys are considered as the most prominent candidates for advanced research and test reactors because these alloys exhibit more stable irradiation performance when compared to other high density uranium alloys and compounds [10,[12][13][14]. According to the U-Mo phase diagram [15], Mo exhibits a high solubility (~ 35 at.…”

Section: Introductionmentioning

confidence: 99%

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Density-functional study of U–Mo and U–Zr alloys

Landa

Söderlind

Turchi

2011

Journal of Nuclear Materials

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Density-functional theory previously used to describe phase equilibria in U-Zr alloys [A.Landa, P. Söderlind, P.E.A. Turchi, J. Alloys Comp. 478 (2009) [103][104][105][106][107][108][109][110] is extended to investigate the ground-state properties of U-Mo solid solutions. We discuss how the heat of formation in both alloys correlates with the charge transfer between the alloy components, and how the specific behavior of the density of states in the vicinity of the Fermi level promotes the stabilization of the U 2 Mo compound. Our calculations prove that, due to the existence of a single -phase over the typical fuel operation temperatures, -U-Mo alloys should indeed have much lower constituent redistribution than -U-Zr alloys for which binodal decomposition causes a high degree of constituent redistribution.

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Section: Introductionmentioning

confidence: 99%

“…% Mo [7], and 10 wt. % Mo [13,14,19,20]. Some studies even found formation of metastable ordered phases, e.g., U 22 Mo 3 with P4/nbm structure, after quenching the -phase from the region temperatures [7,16,19].…”

Section: Introductionmentioning

confidence: 99%

Density-functional study of U–Mo and U–Zr alloys

Landa

Söderlind

Turchi

2011

Journal of Nuclear Materials

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“…Together with our ab initio results obtained previously for U-Mo, U-Am, Pu-U, Pu-Np, and Pu-Am alloys [2,9,11,19,49] these new results will be used to build a thermodynamic database for U-TRU-Mo alloys that are considered to be very promising fuels for fast breeder reactors [4,[50][51][52][53][54][55][56]. …”

Section: Resultsmentioning

confidence: 87%

Density-functional study of bcc U–Mo, Np–Mo, Pu–Mo, and Am–Mo alloys

Landa

Söderlind

Turchi

2013

Journal of Nuclear Materials

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Density-functional theory, previously used to describe phase equilibria in the -U-Mo alloys [A. Landa, P. Söderlind, P.E.A. Turchi, J. Nucl. Mater. 414 (2011) 132], is extended to study ground-state properties of the bcc-based ( ) X-Mo (X = Np, Pu, Am) solid solutions. We discuss how the heat of formation correlates with the charge transfer between the alloy components, and how magnetism influences the deviation from Vegard"s law for the equilibrium atomic volume.

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“…Earlier work by Burkes et al (2010aBurkes et al ( , 2010bBurkes et al ( , 2010c determined that hightemperature  phase is retained at room temperature. Therefore, as-received samples can be assumed to have had significant proportions (more than 90 percent) of this high-temperature  phase.…”

Section: Discussionmentioning

confidence: 97%

Summary of Compression Testing of U-10Mo

Nyberg¹,

Joshi²,

Lavender³

et al. 2012

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This document was printed on recycled paper. AbstractThe mechanical properties of depleted uranium alloyed with 10 weight percent molybdenum alloy (U-10Mo) have been evaluated by high-temperature compression testing. Compression testing was conducted at three strain rates over a temperature range of 400 to 800°C. The results indicate that with increasing test temperature, material flow stress decreases and the material becomes more sensitive to strain rate. In addition, above the eutectoid transformation temperature, the drop in material flow stress is prominent and shows a strain-softening behavior, especially at lower strain rates.v

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Thermo-physical properties of DU–10wt.% Mo alloys

Cited by 70 publications

References 14 publications

Density-functional study of U–Mo and U–Zr alloys

Density-functional study of U–Mo and U–Zr alloys

Density-functional study of bcc U–Mo, Np–Mo, Pu–Mo, and Am–Mo alloys

Summary of Compression Testing of U-10Mo

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