CAJ | 학술논문

通过向Sn-1．0An-0．5Cu无铅焊料中添加微量稀土Er，研究了不同稀土含量对Sn-1．0An-0．5Cu合金的密度、熔化温度、润湿性、拉伸性和延展性的影响，同时利用扫描电子显微镜（SEM）对焊料的显微组织进行了分析，实验结果表明，添加Er对焊料的密度影响不大，可降低熔化区间△l对合金的润湿性、拉伸延展性和微观组织影响较大。当W（Er）=0．10％时，焊料合金的综合性能较好。
통과향Sn-1．0An-0．5Cu무연한료중첨가미량희토Er，연구료불동희토함량대Sn-1．0An-0．5Cu합금적밀도、용화온도、윤습성、랍신성화연전성적영향，동시이용소묘전자현미경（SEM）대한료적현미조직진행료분석，실험결과표명，첨가Er대한료적밀도영향불대，가강저용화구간△l대합금적윤습성、랍신연전성화미관조직영향교대。당W（Er）=0．10％시，한료합금적종합성능교호。
By adding the rare earth element of Er to the Sn-1.0Ag-0.5Cu lead-free solder, we study the different rare earth contents on Sn-1.0Ag-0.5Cu alloy density, melting temperature, wettability, tensile strength and ductility of the influence. At the same time, use scanning electron microscopy （SEM） to analyse the solde.The experimental results show that the addition of Er has little effect on density and reduce the melting range of AT. It is also has an important inflounce of the alloy wettability, tensile ductility and microstructure.When w （Er） = 0.10%,the solder alloys have better comprehensive properties.