RECENT RESEARCH PROGRESS ON NANOCRYSTALLINE MATERIALS
纳米晶体材料的研究现状

Polycrystalline materials with grains sizes in the nanometer region (typically less than 100 nm), termed nanocrystalline materials, have been intensively investigated in the past several years. Much improvement has been made in the field of both fundamental understanding and practical applications of this type of materials. This article reviews the present state of the art in this field. The current status of research and development on the synthesis,microstructure, structural instability, and properties of nanocrystalline materials will be summarized. Further consideations of the development and applications of this new class of materials will also be presented.