【作者】 贾成厂； 侯昌恒； 樊世民； 赵军； 解子章；

【Author】 Jia Chengchang, Hou Changheng, Fan Shimin, Zhao jun, Xie Zizhang (School of Materials Science and Engineering, USTB, 100083, Beijing)

【机构】 北京科技大学材料科学与工程学院；

【摘要】 采用经不同时间高能球磨(机械活化)的W、Cu混合粉末。通过成形和液相烧结制备了W-15 Wt% Cu复合材料,以开发新的制备工艺和提高材料的性能。考察了经高能球磨后粉末的变化。观察了烧结合金的组织,测试了合金的密度等性能。结果表明,高能球磨可以使粉末颗粒变细至亚微米级,并使铜在钨中具有一定溶解度。经机械活化处理的粉末对烧结具有显著的促进作用,可以获得高密度的W-Cu复合材料。更多还原

【Abstract】 W-15wt% Cu composites were sintered with mechanically activated powder in order to develop new preparing process and improve properties of alloys. The microstructures of activated powder and sintered alloy were observed. Properties such as density were measured. The results show that through mechanical activation, the particle size becomes finer to sub-micron order, some copper was soluble in tungsten. W-Cu composites of high density can be obtained by mechanically activated powder for its action to the activation sintering.更多还原