Hexagonal boron nitride has a layered crystal structure similar to graphite, with good lubricity and thermal conductivity. At the same time, hexagonal boron nitride is also a raw material for synthesizing cubic boron nitride. Cubic boron nitride has excellent physical and chemical properties, with hardness second only to diamond. Cubic boron nitride is mainly used as advanced refractory materials and superhard wear-resistant materials. Superhard materials made from boron nitride processing can be used to make high-speed cutting tools and drill bits for geological exploration and oil drilling