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所属单位：材料科学与技术学院
发表刊物：Hanjie Xuebao
摘要：The effects of rare earth element Pr and Nd addition on the microstructure of matrix and interface of Sn-0.3Ag-0.7Cu-0.5Ga lead free solder were investigated, so was the shearing strength of the solder joints. The results show that the microstructure of the solder matrix was optimized with the addition of Pr and Nd, and the effect of Pr on the solder is better than that of Nd. The intermetallic compounds (IMC) of the solder matrix with the addition of rare earth element Pr distribute homogeneously, but it appears regional IMCs with the addition of rare earth element Nd which become the birthplace of the cracks. The absorption of rare earth elements can reduce the interface reaction between solder and Cu substrate, improve the morphology of the interface. The solder with Pr addition can combine with Cu substrate preferably so the shearing strength of the solder joints can be enhanced better. © 2017, Editorial Board of Transactions of the China Welding Institution, Magazine Agency Welding. All right reserved.
ISSN号：0253-360X
是否译文：否
发表时间：2017-01-25
合写作者：Han, Yilong,薛松柏,Xue, Peng,Wang, He,Long, Weimin,Zhang, Guanxing,Zhang, Qingke
通讯作者：Han, Yilong,王恒厂