摘要
通过向Bi-2Cu-1Sn系钎料合金中添加微量稀土Ce,研究稀土元素Ce添加量对Bi-2Cu-1Sn钎料合金的熔点、润湿性、力学性能以及显微组织的影响.结果表明:添加适量的Ce可明显改善Bi-2Cu-1Sn合金的润湿性和焊接强度.当添加Ce质量分数为0.3%时,钎料合金熔点为最低267.6℃,润湿面积增加26%,润湿角达到最小41°,焊接剪切强度达到最大19.6 MPa,此时焊料合金的综合性能最佳.
The influence of rare earth element Ce on melting temperature,wetting properties,mechanical properties and microstructure of Bi-2Cu-1Sn solder has been studied.The results shows that,the doping suitable amount of Ce can improve wetting properties and mechanical properties of Bi-2Cu-1Sn,when the addition of 0.3wt% Ce,the melting point of the solder alloy is 267.6℃,the spreading area is increased by26%,the shear strength is 19.6 MPa,respectively.The solder alloy Bi-2Cu-1Sn-0.3Ce has a superior comprehensive properties at aforementioned parameters.
出处
《材料研究与应用》
CAS
2016年第2期106-110,共5页
Materials Research and Application
基金
高等学校博士学科点专项科研基金(20124420110007)
广东省联合培养研究生示范基地人才培养项目(2013JDXM27)
关键词
高温无铅焊料
熔点
润湿性
剪切强度
IMC
high-temperature lead-free solder
melting point
wetting properties
shear strength
IMC
