Boron carbide/diamond composite bulletproof ceramic and preparation method thereof

The invention discloses a boron carbide/diamond composite bulletproof ceramic and a preparation method thereof, and belongs to the technical field of bulletproof ceramic preparation, the preparation method comprises the following steps: preparation of composite diamond micro powder, preparation of coated diamond, mixing, granulation, preparation of a green body, preparation of a silicon plate, sintering and post-treatment; the step of mixing the materials comprises the following steps: mixing large-particle-size boron carbide micro powder, medium-particle-size boron carbide micro powder, small-particle-size boron carbide micro powder, composite diamond micro powder, coated diamond, carbon powder, phenolic resin, glycerol and water in parts by mass, and uniformly stirring to obtain mixed slurry; the prepared composite bulletproof ceramic is high in elasticity modulus, hardness, strength and heat conductivity, large in toughness, high in bulletproof performance and high in neutron absorption capacity. 本发明公开了一种碳