FUEL PELLET AND MANUFACTURING METHOD THEREFOR

A fuel pellet. A manufacturing method for the fuel pellet comprises: S1. weighing raw materials: 0-2% of chromium oxide, 0-2% of aluminum oxide, 0-2% of silicon oxide, 0-2% of niobium oxide, and the balance being uranium oxide; S2. uniformly mixing the raw materials to form mixed powder; S3. pressing the mixed powder to form a blank, and pre-sintering the blank at a high temperature; S4. crushing and sieving the blank, and grinding to obtain particles; S5. adding beryllium oxide powder into the particles, and mixing to form powder to be pressed, wherein the surface of each uranium oxide particle being covered with the beryllium oxide powder; and S6. performing pressing molding on the powder to be pressed and performing densification sintering to obtain the fuel pellet. According to the present application, a double compound addition and double sintering mode is used to enable a sintering aid to form a solid solution or to be distributed in a uranium oxide matrix, so that diffusion or solid solution formation