碳化硼陶瓷插板抗多发弹性能研究

Study on multiple elastic resistance of boron carbide ceramic insert

将2种不同制备工艺、力学性能的等面密度抗弹陶瓷与相同规格的PE背板进行复合,通过背部胶泥凹陷深度、陶瓷破碎锥直径等参数评估陶瓷的抗弹性能优劣。采用了弹道侵彻试验检测两型陶瓷破碎锥直径评估陶瓷吸能效果。结果表明:同等面密度的热压烧结单相碳化硼陶瓷抗单发弹性能较好,但是反应烧结制备的复相增韧碳化硼断裂韧性较高,具备防御多发弹的潜力;2种插板经过多发射击,产生的陶瓷破碎锥直径均逐渐减小,后序射击比前序射击陶瓷吸收的动能降低,从而导致背凸递增。

This paper selected two kinds of different preparation process and mechanical properties of elastic ceramic and the BFS of the PE of the same specification.The test showed that the thermal pressure sintering boron carbon ceramics with the same surface density are higher than energy absorption and better single elastic resistance,but the compound phase toughness prepared by reaction sintering has high fracture toughness and has the potential to prevent multiple shoots.After the two insertion plates pass multiple shooting,the ceramic crushing cone diameter is gradually reduced,and the rear order firing has the lower kinetic energy absorbed than the preface firing ceramics,leading on an increasing trend of back convex.