中文摘要：

采用Φ100mm一级轻气炮开展了无氧铜飞片撞击氧化铝陶瓷的一维应变冲击压缩实验，利用VISAR测试了样品的自由面质点速度历程。实验发现，在OFHC与陶瓷撞击时，OFHC飞片也可发生层裂，SEM分析表明其层裂方式为准解理断裂，在撞击区域OFHC的晶粒长大，并伴随孪晶生成，而且OFHC在高速撞击下不会产生绝热剪切带和析出相，其原因是透射稀疏波在飞片中与飞片后界面反射的稀疏波迎面相遇形成拉伸波区所造成的。

英文摘要：

The shock compression experiments of alumina ceramics were carried out under 1D strain state by Φ100mm one-stage gas gun and free surface velocity histories of particles in alumina were measured by VISAR. The spallation has been observed on OFHC flyer when OFHC impact ceramics. The SEM results showed that the spallation mode was quasi-cleavage fracture and the grains grown in impact region with twins generation. Furthermore, the adiabatic shear band and the precipitated phase would not occurred by high-velocity impact be- cause of the transmission rarefaction wave encountered with reflection rarefaction wave in flyer and the rarefaction wave region.