摘要
对凝固界面前沿颗粒被推斥或被吞没行为的热力学、动力学判据进行了综合评述,探讨了影响颗粒行为的动力学参数,认为从动力学角度而言,颗粒行为主要取决于颗粒所受相互对立的两种类型力的平衡关系,进而介绍了利用外场力控制凝固界面颗粒行为设想的可行性。
This paper reviews thermodynamic and kinetic criteria for pushing/engulfment transition of particle in front of solidification interface,and the kinetic variables affecting the behavior of the particle are summarized. It is concluded that,according to the kinetic model,the particle's behavior mainly depends on the balance of two kinds of forces acting on it. The possibility of controlling the particle's behavior in front of the solidification interface by applying foreign force is also discussed.
出处
《材料导报》
EI
CAS
CSCD
2003年第9期9-12,共4页
Materials Reports
基金
上海市科委青年科技启明星计划(01QE14020)
上海市教委曙光计划资助(02SG42)
