Boron carbide is an important nonmetallic material with physical and chemical properties. It is the hardest boron compound after boron nitride.Its high melting point, large neutron capture surface, low density, inert chemical properties, excellent thermal and electrical properties make boron carbide a new material for high technology applications.

Boron carbide can also be added to alumina and silicon carbide ceramics, and is also one of the raw materials of polycrystalline polishing abrasive, which can improve the fracture toughness of the material and its strength relatively.Boron carbide is widely used because it can also absorb a lot of neutrons.