(西安理工大學(xué) 材料科學(xué)與工程學(xué)院，西安 710048)
摘 要: 通過對(duì)CuW假兩相合金的熔滲參數(shù)的理論分析和實(shí)驗(yàn)研究，給出了熔滲時(shí)間與鎢粉粒徑、壓坯孔隙率、壓坯高度之間的定量關(guān)系式。結(jié)果表明，鎢粉的粒徑越小，毛細(xì)作用力越大，但鎢粉總表面積增大使?jié)櫇癖砻嬉朔淖枇σ苍黾樱C合作用使熔滲的時(shí)間延長(zhǎng)；隨著壓坯的孔隙率增大，熔滲阻力減小，熔滲速度加快，熔滲時(shí)間縮短。
關(guān)鍵字: 銅鎢合金； 熔滲參數(shù)； 毛細(xì)作用； 鎢粉
（School of Materials Science and Engineering，
Xi′an University of Technology,Xi′an 710048, P.R.China）
Abstract: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.
Key words: CuW alloy; infiltration parameters; capillary, tungsten powder
