The grainfracture of energetic particle bed as a result of dynamic impact and dynamic compression at different temperature was measured by using a high-low pressure launch set.
利用高低压发射装置，测定了含能颗粒床在不同环境温度下动态撞击与动态挤压的破碎程度；
2
Intergranular fracture. Fracture of polycrystalline materials by crack propagation along grain boundaries.
多晶材料裂纹沿着晶界扩展而断裂。
3
Crystalline fining grain can restrain the cleavage fracture.