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Report No.

Thermal conductivity of UO$$_{2}$$ by molecular dynamics simulation

Uchida, Teppei

In this study, thermal expansion and thermal conductivity of UO$$_{2}$$ containing Schottky defects were evaluated as a first step of evaluating thermal properties of MOX fuel containing MA by molecular dynamics simulation. Compared to thermal conductivity of perfect crystal UO$$_{2}$$, that of UO$$_{2}$$ containing Schottky defects were lower. It is considered that defect structures scattered phonon vibrations and thermal conductivity decreased.



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