Thermodynamic properties of uranium in gallium–aluminium based alloys

Activity, activity coefficients and solubility of uranium was determined in gallium-aluminium alloys containing 1.6 (eutectic), 5 and 20 wt.% aluminium. Additionally, activity of uranium was determined in aluminium and Ga–Al alloys containing 0.014–20 wt.% Al. Experiments were performed up to 1073 K...

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Bibliographic Details
Published in:Journal of nuclear materials 2015-10, Vol.465, p.153-160
Main Authors: Volkovich, V.A., Maltsev, D.S., Yamshchikov, L.F., Chukin, A.V., Smolenski, V.V., Novoselova, A.V., Osipenko, A.G.
Format: Article
Language:English
Subjects:
Activity
Activity coefficient
Alloys
Aluminium
Aluminum
Diffraction
Gallium
Gallium base alloys
Gallium–aluminium alloy
Mathematical analysis
Nuclear engineering
Solubility
Thermodynamics
Uranium
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Summary:Activity, activity coefficients and solubility of uranium was determined in gallium-aluminium alloys containing 1.6 (eutectic), 5 and 20 wt.% aluminium. Additionally, activity of uranium was determined in aluminium and Ga–Al alloys containing 0.014–20 wt.% Al. Experiments were performed up to 1073 K. Intermetallic compounds formed in the alloys were characterized by X-ray diffraction. Partial and excess thermodynamic functions of U in the studied alloys were calculated. •Thermodynamics of uranium is determined in Ga–Al alloys of various compositions.•Uranium in the mixed alloys interacts with both components, Ga and Al.•Interaction of U with Al increases with decreasing temperature.•Activity and solubility of uranium depend on Al content in Ga–Al alloys.
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2015.05.022