▎ 摘　　要

NOVELTY - Preparing uranium dioxide-graphene fuel pellet comprises weighing graphene and uranium dioxide in proportion, mixing the graphene and uranium dioxide by wet ball milling to form a mixed slurry, and drying the mixed slurry in a vacuum environment to obtain a mixed powder. The mixed powder is put into a hot-pressing mold and performed hot-pressing sintering in a vacuum environment at a sintering temperature of 1200-1400degrees Celsius to obtain uranium dioxide-graphene fuel pellets. USE - Method for preparing uranium dioxide-graphene fuel pellet used as nuclear fuel in nuclear power generation, nuclear power storage, and nuclear propulsion. ADVANTAGE - Adv: --- The method prepares the uranium dioxide-graphene fuel pellet in a simple manner with high thermal conductivity and high density, and a large number of micropores inside the pellet. DESCRIPTION OF DRAWING(S) - The drawing shows a 20000 times magnified electron microscope photograph of the prepared mixed powder.