摘要：纳米晶材料是纳米材料研究领域中的热点之一。本文对纳米晶材料的制备方法、表征、结构、性能及其应用进行了综述。

关键词： 纳米晶材料；制备；表征；性能

Abstract：Nanocrystalline materials is one of the hot topics in the research field of the nanometer materials．T he method of preparation size determination characterization properties and applications of nanocrystalline materials are summarized． 

Keywords：nanocrystalline materials；preparation；size determination；characterization；properties