摘要：简述了近年来国内外超微细颗粒结构特征及其聚团机理的 研究进展，这些特征包括：径向分布函数、分形维数、配位数等系统 静态结构性质和在流体媒介中外力场作用下超微细颗粒的聚团机 理等动态性质，探讨了超微细颗粒的微观结构研究的发展方向。 

关键词：超微细颗粒；微观结构；簇团

Abstract：The current progress in microstructures and their clusters of superfine particles at home and abroad was described briefly. Those features include: system static-structure properties, such as radical distribution function, fractal dimension, coordination number etc.；and system dynamic properties, i.e. aggregating mechanism of superfine particles under external forces in fluid. The next direction of investigation in microstrures of superfine particales was discussed. 

Keywords：superfine particles; microstructures; clusters