纳米材料是80年代发展起来的新型材料.这种材料因界面上原子占有相当大的比例,因而表现出独特的物理、化学和力学性能,已越来越受到材料工作者的广泛重视.目前,纳米材料多采用气相冷凝法制取.然而这种方法制粉效率低、产量小而成本高,尤其对于高熔点的金属和合金,这就大大限制了对纳米材料的结构、性能的研究和应用.机械合金化技术为纳米材料的制备提供了一个新途径.这种方法通过在高能球磨下的机械驱动,实现低温下的固态反应,能够获得常规方法难以获得的具有新型结构的材料.Shingu等首先报道用 Nanomaterials are new materials developed in the 80s, which have attracted more and more attention by material workers due to the considerable physical, chemical and mechanical properties due to the large proportion of atoms in the interface.At present, However, this method has the disadvantages of low efficiency, low yield and high cost, especially for high melting point metals and alloys, which greatly limits the research and application of the structure and properties of nanomaterials. Mechanical alloying technology for the preparation of nano-materials provides a new way.This method by high-energy ball milling under the mechanical drive, to achieve solid state reaction at low temperatures, can be obtained with conventional methods difficult to obtain with a new structure of the material.Shingu et al Report with