扩散温度对Cu－Sn粉末压制与烧结性能的影响

来源期刊：中南大学学报(自然科学版)1995年第4期

论文作者：张金生 毅高 高游 杨兵

文章页码：488 - 492

关键词：锡青铜粉; 扩散温度; 压制性能; 烧结性能; 烧结胀大; 部分合金化

Key words：bronze powder; diffusion temperature; compressibility; sinterability; sinteringexpansion; partially alloying

摘    要：热扩散法是制取部分合金化Cu－SN粉末的途径之一,作者研究了扩散温度对Cu－SN粉末压制与烧结性能的影响,实验结果表明,Cu－SN粉末的压实性及烧结胀大现象,都随着扩散温度的提高而降低,Cu粉颗粒越粗,获得具有相同烧结性能的Cu－SN粉末的扩散温度越高。

Abstract: The mixtures of copper powder and tin powder show large dirnensional change duringsintering-sintering expansion which makes control of the final dimensions difflcult.The de-gree of sintering expansion can be reduced by using partially alloyed Cu-Sn powder.Therrnaldiffusion is one,of the methods of producing partially alloyed Cu-Sn powder.The effect ofdiffusion temperature on compressihility and sinterability of Cu-Sn powder was studied.Theexperimental results indicate that the compressibilily and sintering expansion of Cu-Sn pow-der decrease with the raising diffusion temperature.The coarser the copper particle and thehigher the green density of compact,the higher the diffusion temperature to obtain the Cu-Sn powder possessing the same sinterability.