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颗粒的粒度对变形特性及断裂过程有重要影响．本文从能耗理论入手，分析了超微颗粒的断裂机理，并指出应力释放是实现超微颗粒制备的理想模式．
Particle size has an important influence on deformation characteristics and fracture process. This paper starts with the theory of energy consumption, analyzes the fracture mechanism of ultrafine particles, and points out that stress release is an ideal mode for the preparation of ultrafine particles.