boron carbide

A black crystal powder, is one of the hardness Man-Made materials, its hardness
with Mohs hardness 9.36 and micronscopic hardness 5400-6300Kg/mm2 is only near upon diamond, its density is2.52g/cm3, and melting point at 2450, the
boron carbide possesses properties of endurance high/low temperature, no
reaction with either acids or alkalis, high grinding efficiency, no magnetism.
It is a good replacement of diamond.

Boron carbide possesses the
specialty properties of light quality, neutron absorbing, semi-conductivity,
etc. so it is used for armed forces and nuclear industry. Boron carbide is widely
applied as follows: boriding refractory, ion transfuse, film layer as well as
grinding, polishing, drilling hard metal alloys, jewels etc. Meanwhile, it is
main material for wear-resisting parts, precise meter-age element, precise
spray nozzle, sealed washed, smelting boron steel, boron alloy, etc. Boron
carbide has showed many better properties of physics and chemistry in the
hi-science/technology field.

Boron Carbide Engineering
Ceramics are always used as neutron absorbing materials and nuclear engineering
ceramic materials in the nuclear industry, bulletproof plates in the military
industry, sandblast nozzles and sealing rings in the airplane or tanks armor
plate industry.