Influence of temperature, initial grain-boundary bubble density and grain structure on fission gas behaviour in UO${}_2$: a 3D hybrid multiscale study

Sourav Chatterjee, Md. Ali Muntaha, Sophie Blondel +3

Fission gas swelling and release in UO${}_2$ are governed by the coupled evolution of intragranular clusters and bubbles, migrating grain boundaries (GBs), triple junctions (TJs), an…