The free surface velocity profile of AD95ceramic target was measured through laser interferometry under one-dimensional plane strain shock compression.Whether failure wave happened and its relationship with material property were discussed by the analysis of velocity profile characteristic.In an impact stress range from 4.4to 7.3GPa(σHELis about 5.5GPa),the free surface velocity profile has no appearance of reload signal,which means that there is no appearance of seriously damaged and fragmentized interface...