Cu W假两相合金的熔渗参数  

Infiltration parameters of CuW pseudobinary alloy

作　　者：范志康[1] 梁淑华[1] 肖鹏[1] 

机构地区：[1]西安理工大学材料科学与工程学院,西安710048

出　　处：《中国有色金属学报》2001年第z1期102-104,共3页The Chinese Journal of Nonferrous Metals

基　　金：陕西省科技发展计划项目 ( 98KH6 0 );陕西省教育厅重点基金项目 ( 99JK171)

摘　　要：通过对CuW假两相合金的熔渗参数的理论分析和实验研究 ,给出了熔渗时间与钨粉粒径、压坯孔隙率、压坯高度之间的定量关系式。结果表明 ,钨粉的粒径越小 ,毛细作用力越大 ,但钨粉总表面积增大使润湿表面要克服的阻力也增加 ,综合作用使熔渗的时间延长 ;随着压坯的孔隙率增大 ,熔渗阻力减小 ,熔渗速度加快 ,熔渗时间缩短。The infiltration parameters of CuW pseudobinary alloy were studied through theoretic deduction and experimental study. A formula was given out to show the relationship among infiltration time and tungsten powder size, pore fraction and CuW compact height. The results show that the smaller the tungsten powder size, the greater the capillary force. However, the surface area of the tungsten powder also increases, which results in a greater resistance to wetting. In general infiltration time extends. With increasing pore fraction of CuW compact, the resistance to infiltration decreases and the infiltration time becomes shorter.

关 键 词：铜钨合金 熔渗参数 毛细作用 钨粉 

分 类 号：TF[冶金工程] 12