What are the applications of boron carbide in chemical raw materials?

What are the applications of boron carbide in chemical raw materials?
Boron carbide can be used as an additive for some metal-based friction materials in chemical raw materials; when producing boride powder by reduction-chemical method, boron carbide can be used as a boron source and can also produce boron halide, hydrogen boride, etc. Boron carbide is more widely used as a chemical raw material and is used as a boronizing agent for steel or other alloys to boronize the surface of the steel to form a thin layer of iron boride to enhance the strength and wear resistance of the material.