Interactions between the shock wave and disturbed surface, will result in the ejection of particles from the metal surface. The ejected particles have a size of a few to hundreds of micrometers and a velocity of a few kilometers per second,less information that links the ejecta interactions with the gas beyond the rough surface, the gas density, shock wave properties and the initial gas pressure is available. Explosively driven experiments were conducted to characterize the particle-size of ejecta interactions with the gas.

eject,breakup