设计并制备了两种不同结构的多层SiC/Al合金复合材料,对其进行了弹道冲击测试.结果表明：具有三层陶瓷板的结构B的抗冲击性能优于具有两层陶瓷板的结构A,在弹道冲击作用下,表现出更好的结构完整性;弹道冲击后,作用于结构A的弹头质量损失66.42%、长度损失62.92%,而作用于B的弹头质量损失63.65%、长度损失65.43%;结构B的单层陶瓷板厚度较小,但是对弹头的磨蚀作用强于结构A;陶瓷/金属层状复合材料作为一个整体,其金属内衬板自身也吸收一部分冲击动能,从而导致了向后的变形,同时也产生阻力对断裂锥和弹头进行减速.此外,弹-靶结合瞬间产生巨大的热量,导致弹头发生部分熔蚀,也是弹头质量和长度损失的原因之一;同时金属内衬板也发生部分熔化.

Ballistic impact tests were made on laminated SiC/Al composites with two different structures.The results show that,as compared with Structure A possessing two layers of ceramic plate,Structure B possessing three layers of ceramic plates exhibits better structural integrity when it is subjected to ballistic impact,that the mass and length losses of the projectile impacting on Structure A are respectively 66.42% and 62.92%,while those on Structure B are respectively 63.65% and 65.43% that the single ceramic plate in Structure B is thinner than that in Structure A,but the abrasion of Structure B on the projectile is stronger than that of Structure A,and that,as a part of an integral structure of laminated ceramic/metal composite,metal lining plates absorb partial impact energy,thus Leading to the backward deformation and the resistance on the ceramic comminuting cone and the projectile.In addition,the heat produced at instantaneous projectile-target contact leads to partial corrosion on the projectile,which is one of the reasons for the mass and length losses of the projectile and for the partial melting on metal lining plate.