Manufacture of bulletproof materials, such as bulletproof plates in bulletproof vests, ceramic bulletproof tiles for pilot cockpits of *** aircraft, and ceramic bulletproof plates for modern armored personnel carriers and tanks. It can be used as a nozzle for manufacturing guns and guns in the military industry. At present, AL2O3-based ballistic ceramics have been used in "502 Project" and "212 Project", but when the AL2O3-based ceramic composite armor is used on the side of the tank body and other parts, the weight reduction effect is not obvious, and the same thickness is used. Performance Boron carbide ceramic composite armor is 15%-20% lighter than AL2O3-based bulletproof ceramics, and the ballistic performance is further improved. Therefore, the key equipment engineering ceramic composite armor development project puts forward an urgent need for high-performance, low-cost boron carbide bulletproof ceramics. Therefore, the development and application of high-performance, low-cost boron carbide bulletproof ceramic materials can greatly improve the performance of related military equipment, and have significant military and economic benefits. The application directions of boron carbide bulletproof ceramic materials are: key equipment projects, future main battle tanks, infantry fighting vehicles, airdrop and airborne vehicles and other light armored vehicles, as well as armored protection for armed helicopter webs and ship superstructures.