近十年含稀土无铅钎料研究进展及发展趋势  

Latest Advances and Development Trend of Lead-free Solder Bearing Rare Earths in Decade

作　　者：张亮 杨帆[1] 孙磊[1] 郭永环[1] 

机构地区：[1]江苏师范大学机电工程学院,江苏徐州221116 [2]加州大学洛杉矶分校材料科学与工程系,美国洛杉矶ca90095

出　　处：《稀土》2017年第1期126-133,共8页Chinese Rare Earths

基　　金：江苏省自然科学基金项目(BK2012144);江苏省高校自然科学基金项目(12KJB460005)

摘　　要：稀土元素被称为金属材料的"维他命",即微量的稀土元素可以显著改善金属材料的性能。近十年在电子封装业中国内外研究者采取在无铅钎料中添加稀土元素,改善钎料的系列性能,取得了丰硕的研究成果。综合评述了近十年来含稀土无铅钎料的研究工作,探讨了稀土元素对钎料熔化温度、润湿性、力学性能、蠕变性能、组织、可靠性及锡须的影响,同时分析含稀土无铅钎料在应用过程中出现的问题及相应的解决措施,并对含稀土无铅钎料的发展趋势进行分析和展望。Rare earths have been called＂vitamin＂for metals,which means a small amount of rare earths can improve the properties of metals. In decade,the rare earths have been selected as additives to improve the series of properties of lead-free solders,lots of work have been done by researchers at home and abroad in electronic packaging industry. In this paper,the work of lead-free solders bearing rare earths was reviewed,and the effect of rare earths on the melting temperature,wetting,mechanical properties,creep property,microstructure,reliability and whiskers was discussed. Moreover,the problems and difficulty in the process of the applications of lead-free solders bearing rare earths were analyzed,some suggestions have been put forward which maybe solve those issues as mentioned above,meanwhile,the prospect on lead-free solders bearing rare earths was analyzed and looked-ahead.

关 键 词：稀土 无铅钎料 力学性能 发展趋势 

分 类 号：TG454[金属学及工艺—焊接]