Simple Microstructure-Dependent Model for in-Reactor Densification of UO sub 2

摘要

A model for predicting densification of UO sub 2 has been developed. The model based on the conception of Assmann and Stehle deals with densification due to generation and migration of vacancies. The processes taken into account are assumed to be both irradiation - induced and thermally activated. The model includes a description of the growth or shrinkage of pores. Comparisons were made between the predictions of the model and data by Freshley et al. (Atomindex citation 12:629187)