The International Thermonuclear Experimental Reactor (ITER) project is one of the world's largest and most far-reaching international scientific research cooperation projects. The ITER device is a superconducting tokmak that can produce large-scale nuclear fusion reactions, commonly known as the artificial "sun". The nuclear-grade beryllium oxide-coated uranium oxide composite nuclear fuel pellets developed by Taiyang Technology can solve the problem of low thermal conductivity; lithium orthosilicate is used to prepare lithium orthosilicate ceramic pellets. Because of its high lithium content, it is easy to Achieving a large tritium breeding ratio, low neutron activation rate, and good overall tritium performance, it is regarded as the primary material for solid tritium breeding agents in ITER fusion reactors; metallic beryllium is used in structural parts in the nuclear industry and for thermonuclear fusion Coating materials for plasma polymerization confinement rings in devices.