A model for the effect of the progression of irradiation-induced recrystallization from initiation to completion on swelling of UO2 and U-10Mo nuclear fuels

Analytical expressions are derived for the progression of recrystallization from initiation to completion, and for the swelling due to fission-gas. It is demonstrated that these phenomena can be simulated in both UO2 and in U-xMo with the same theory, albeit with various property differences. Results of the calculations are compared with available data.