中文摘要：

Nanostructured (NS ) WCu 合成粉末被机械 alloying (麻省) 准备，；WCu 接触物质的 nanostructured 体积被热出版社 sintering 在一个电的真空炉子制作。微观结构，电的电导率，坚硬；毁坏 NS WCu 合金的电压被测量；与那些相比，常规 WCu，合金由粉末冶金学准备了。试验性的结果显示出那微结构精炼；一致性能改进故障行为；nanostructured WCu 的电的弧稳定性联系材料。另外， nanostructured WCu 接触物质显示出散布电的弧的特征，它具有电的弧侵蚀的利益。

英文摘要：

Nanostructured （ NS ）W-Cu composite powder was prepared by mechanical alloying （ MA ）, and nanostructared bulk of W-Cu contact material was fabricated by hot press sintering in an electrical vacuum furnace. The rnicrostructure, electric conductivity, hardness and break down voltage of NS W- Cu alloys were measured and compared to those of conventional W-Cu alloys prepared by powder metallurg＇y. The experimental results show that microstructural refinement and uniformity can improve the breakdown behavior and the electric arc stability of nanostructared W- Cu contacts materials. Also, the wanostructured W- Cu contact material shows the characteristic of spreading electric arcs, which is of benefit to electric arc erosion.