Boron Carbide is with a Mohs hardness between 9 and 10, one of the hardest synthetic substances known, being exceeded only by cubic boron nitride and diamond. As an abrasive, it is used in powdered form in the lapping (fine abrading) of metal and ceramic products. Because of its hardness, together with its very low density, it has found application as a reinforcing agent for armors. Its wear resistance has caused it to be applied in sandblasting nozzles and pump seals. As neutron absorber, boron carbide is used in powdered or solidified form to control the rate of fission in nuclear reactors.
Extremely high hardness
Wide range of particle size selection
Abrasives for lapping and ultrasonic cutting
Anti-oxidant in carbon-bonded refractory mixes
Nuclear applications such as reactor control rods and neutron absorbing shielding
Wear parts such as blasting nozzles, wire-drawing dies, powdered metal and ceramic forming dies, thread guides