Cubic boron nitride (CBN) has broad application prospects and domestic production capacity is mainly concentrated in central China.

Cubic boron nitride, or CBN for short, is a new type of artificially synthesized superhard material. Its atomic structure is similar to the carbon atomic structure in diamond. It has a hardness second only to diamond and has a high resistance to iron-based metal elements. Chemically stable, it is often used as cutting tools and…