Development of Boron Carbide/Aluminum Neutron Absorber

Development of Boron Carbide/Aluminum Neutron Absorber
Neutron absorbing materials, also known as neutron poison materials, absorb thermal neutrons through the large neutron absorption cross-section substances (such as boron, cadmium, gadolinium, etc.) contained in them, thereby inhibiting the nuclear fission chain reaction, mainly used for nuclear fuel and spent During fuel storage and transportation, to ensure the subcritical safety of storage and transportation. Boron carbide reinforced aluminum (B4C/Al) neutron absorption material is a new type of aluminum matrix composite material formed by adding B4C particles to aluminum matrix. Because of its high boron content, low density and high thermal conductivity, it has been widely used in recent years. In foreign countries, traditional neutron absorption materials such as boron stainless steel have been widely used in high-density storage and transportation of nuclear fuel/spent fuel.