blackcrystal 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 is
2.52g/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.
Boroncarbide 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