Nuclear Engineering Commons^™

Nuclear Fuel Materials Under Extremes: Redox Behavior And Resulting Defect Structure, William Cureton

Doctoral Dissertations

Oxide nuclear fuel materials and analogues are often subject to complex structural and chemical changes when exposed to extreme environments. For example, oxidation and buildup of fission products cause changes to the local- and long-range structure as well as the chemistry and stoichiometry of UO₂ during operation in light water reactors. Highly ionizing energetic fission fragments have been shown to cause redox effects and associated defect structures in oxide nuclear fuel-type materials. The underlying mechanisms that lead to defect structures produced in a wider range of nuclear fuel material compositions and microstructures is not well understood.

This research project …