Morphology of UO2
1999; Elsevier BV; Volume: 275; Issue: 1 Linguagem: Inglês
10.1016/s0022-3115(99)00110-5
ISSN1873-4820
AutoresM Abramowski, Robin W. Grimes, Scott L. Owens,
Tópico(s)Radioactive element chemistry and processing
ResumoThe sintering of UO2 green pellets is influenced by the morphology of the crystallites. This study predicts equilibrium and growth morphologies of UO2 crystallites, based on five different interatomic potential models that were derived in order to understand properties of the bulk material. It was found that despite the differences between these models, all result in essentially the same morphologies. The equilibrium morphology of UO2 is an octahedron, showing only {1 1 1} faces. The growth morphology is a truncated octahedron, exhibiting {1 1 1} and {2 0 0} facets.
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