Investigated accident tolerant nuclear fuels are fuels with enhanced thermal conductivity, which can withstand the daddario ej10 loss of coolant for a longer time by allowing faster dissipation of heat, thus lowering the centerline temperature and preventing the melting of the fuel.Traditional nuclear fuels have a very low thermal conductivity and can be significantly enhanced if transformed into a composite with a very high thermal conductivity components.In this study, we analyze the thermal properties of various composites of mixed oxides and thoria fuels to improve thermal conductivity for the next generation 3 nef runes safer nuclear reactors.