Hexagonal boron nitridenal BN,hBN), Known as "white graphite", its structure is similar to graphite, appearing white on the surface, and it exhibits excellent properties in various aspects. The band gap of the nitride shed is 5-6eV, with lattice parameters a=2.054A and c=6.652A. By controlling the arrangement order, number of layers, and chiral properties of B and N elements, various allotropes can be obtained. Hexagonal boron nitride is arranged in ABAB order and is a layered structure of graphite. Boron nitride has a structure similar to carbon materials, such as graphite, diamond, fullerene, carbon nanotubes, etc. It has good thermal conductivity, oxidation resistance, high temperature resistance, and good mechanical strength