纳米技术在电触头材料中的应用

自80年代纳米技术在材料领域通过纳米粒子以及各种超微细的结构模块，导致产生出许多新的具有优异性能和新的应用可能的纳米复合材料。纳米材料由于组成晶粒超细，大量原子位于晶界上，因而在机械性能、物理性能和化学性能等方面都优于普通的粗晶材料。最近几年这一技术在电触头材料的研究和制备过程中已经有了初步的应用，并取得了良好的效果。综述了近几年来纳米技术在电触头材料中的应用概况，介绍了已经制备出并见于报道的和正在研究的纳米晶触头材料的具体制备工艺及其性能的改善情况，展望了纳米技术在该类材料中的应用前景。

Application of Nanotechnology in Electrical Contact Materials

Since the 1980 s nanotechnology has extensively been applied in materials field to produce nanocomposites with excellent properties and new applicable probabilities by means of numerous nanogranulars and superfine structure. Because of ultrafine grains and high energy interfaces, nanocomposites are superior to common counterparts in mechanical, physical and chemical properties. In recent years nanotechnology was applied in the research and fabrication of electrical contact materials and some favorable effects were made. The application situation of nanotechnology in electrical contact materials in recent years was reviewed. The preparation techniques and properties of nanocrystalline contact materials reported and being researched were introduced. The prospect of applying nanotechnology in electrical contact materials was viewed.