钨铜复合材料的化学活化液相烧结  

Chemically Activated Liquid Phase Sintering of Tungsten-copper

作　　者：黄金昌[1] 徐秀茹[1] 

机构地区：[1]西北有色金属研究院

出　　处：《稀有金属与硬质合金》1996年第4期59-64,共6页Rare Metals and Cemented Carbides

摘　　要：钨在铜中的不溶解性妨碍钨和铜混合粉末的液相烧结。在本文所述的研究中，通过往原始的粉末混合物中添加质量分数小于１％的钴而显著地改善了材料的各种性能。本文还探讨了诸如钴含量、初始均勺性、铜粉粒度、铜含量、未烧结密度、加热速率和烧结温度等工艺因素的作用．Liquid phase sintering of mixed W--Cu powders is hampered'by the insolubi lity of tungsten in copper. In this study, the propertiesof the system are significant ly improved by addition of less than lwtqdCo to the starting powder mixture. The effects of process variablessuch as cobalt content, initial homogeneity, copper parcticle size.copper content, green blank density, heating rate, and sintering temperature are invest irated.

关 键 词：复合材料 液相烧结 粉末冶金 钨 铜 化学活化 

分 类 号：TF124.54[冶金工程—粉末冶金]