Article ID Journal Published Year Pages File Type
1566660 Journal of Nuclear Materials 2011 5 Pages PDF
Abstract
Pathways to prediction of phase equilibria in He-U-O system at high temperatures based on the single- and two-box molecular dynamics (MD) technique are discussed. Single-box MD simulation of He gas bubble in uranium dioxide has been carried out, helium gas infusion processes studied and its limited efficiency illustrated. More efficient two-box MD simulation technique was applied to study of helium dissolution in stoichiometric UO2 and non-stoichiometric UO2±x single-crystals. Equilibrium solubility of helium in UO2 and UO2±x estimated and compared with experimental data. The deviations from Henry's law at high pressures of helium are discussed.
Related Topics
Physical Sciences and Engineering Energy Nuclear Energy and Engineering
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