Abstract
There are a number of important challenges facing the nuclear industry including the extension of the fuel cycle of traditional UO2 fuel and the adoption of non-oxide ceramic fuel forms in both light water reactors (LWRs) and advanced reactors. Atomic scale processes govern thermophysical properties and the evolution of defects within nuclear fuel, and their impact on key fuel performance metrics, such as margin to melting and fission gas release. Here a review is presented of atomic scale simulation efforts to provide physics-based materials models in support of fuel performance modeling.
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