Boron Nitride Production Processedit

The boron nitride usually produced has a graphite-type structure, commonly known as white graphite. The other is diamond type, similar to the principle of converting graphite to diamond. Graphite type boron nitride can be transformed into diamond type boron nitride under high temperature (1800℃) and high pressure (8000Mpa) [5~18GPa]. It is a new type of high-temperature-resistant superhard material used to make drill bits, abrasive tools and cutting tools.