Preparation method of multi-bullet-resistant ceramic and bulletproof insert plate

Abstract

A preparation method of a multi-bullet-resistant ceramic and a bulletproof insert plate are provided; the ceramic is made by sintering silicon carbide and/or boron carbide and the sintering is one or more of high-temperature sintering, reactive sintering, hot-pressed sintering, or pressureless sintering. The average grain size of the ceramic is 200 to 380 μm, the Vickers hardness is 23.5 GPa to 34 GPa, and the compression strength is 2200 MPa to 3100 MPa. The back bulge generated during bullet penetration can be effectively lowered on the precondition of ensuring the bulletproof insert plate is not penetrated by the bullet, fully satisfying the multi-faceted bulletproof requirements of the new-generation protective insert plate.

Dependencies are inferred from the claim text.