%0 Journal Article
%T Calculation of thermal conductivity of UO2±0.25 solving phonon Boltzmann equation
%J Iranian Journal of Physics Research
%I Isfahan University of Technology,
The Physics Society of Iran
%Z 1682-6957
%A Sheykhi, Samira
%A Payami Shabestar, Mahmoud
%A Basaadat, Mohammad reza
%D 2023
%\ 05/22/2023
%V 23
%N 1
%P 1-6
%! Calculation of thermal conductivity of UO2±0.25 solving phonon Boltzmann equation
%K uranium dioxide
%K phonon Boltzmann equation
%K thermal conductivity
%K phonon lifetime
%K defect
%R 10.47176/ijpr.23.1.51457
%X In this study, the effect of point defects on the thermal conductivity of UO2 is investigated. Especially, the effects of oxygen vacancy and interstitial are considered. Thermal conductivity of UO2, UO2+0.25 and UO2-0.25 is calculated by solving the phonon Boltzmann equation (BTE) under the relaxation time approximation (RTA). The results show that introducing any defects to the lattice structure of UO2 decreases thermal conductivity significantly. In addition, the results show that the variation of the thermal conductivity of UO2-0.25 is much lower than that of UO2+0.25 in the temperature interval of 300 to 1000 Kelvin.
%U https://ijpr.iut.ac.ir/article_3351_1df4eb96c9db226680fb193ff6b2cd05.pdf