Sunghwan Kim¹, Kyu Hong Lee¹, Won Jae So¹, Yong Jin Jeong¹, Kinam Kim¹, Jong Man Park¹; ¹Korea Atomic Energy Research Institute

The high uranium loading, indispensable for the LEU conversion, has an effect on the homogeneity of dispersion fuels relating substantial variation in fuel product yields. In this study, atomized U-7Mo powders were coated with pure Al, a matrix material, by PVD to avoid the problems of homogeneity. Varying thicknesses of Al was homogeneously deposited on the surface of U-7Mo particles. Al-deposited powders were directly compacted in various densities of compacts without a blending process. The porosity of compacts was measured by the Archimedes method, and the results compared to those of a general compact.