Effect of Trace Rare Earth La on the Properties of Sn-Zn-Al Based Pb-Free Solder

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Effect of Trace Rare Earth La on the Properties of Sn-Zn-Al Based Pb-Free Solder
Vol. 32, Issue 6, Pages: 496-500(2012)
Published： 2012 ，
DOI： 10.15980/j.tzzz.2012.06.008

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[1]尹彩流,韩艳美,零妙然,何沂桂,蒙洁丽,谢世标,唐轶媛,梁建烈.微量稀土La对Sn-Zn-Al无铅焊料性能的影响[J].特种铸造及有色合金,2012,32(06):496-500.

Yin Cailiu1, Han Yanmei2, Ling Miaoran2, et al. Effect of Trace Rare Earth La on the Properties of Sn-Zn-Al Based Pb-Free Solder. [J]. Special Casting & Nonferrous Alloys 32(6):496-500(2012)
[1]尹彩流,韩艳美,零妙然,何沂桂,蒙洁丽,谢世标,唐轶媛,梁建烈.微量稀土La对Sn-Zn-Al无铅焊料性能的影响[J].特种铸造及有色合金,2012,32(06):496-500. DOI： 10.15980/j.tzzz.2012.06.008.

Yin Cailiu1, Han Yanmei2, Ling Miaoran2, et al. Effect of Trace Rare Earth La on the Properties of Sn-Zn-Al Based Pb-Free Solder. [J]. Special Casting & Nonferrous Alloys 32(6):496-500(2012) DOI： 10.15980/j.tzzz.2012.06.008.

采用真空熔炼技术成功制备Sn-（8.98-x）Zn-0.02Al-xLa（x=0.02～0.12）焊料。采用XRD衍射、DTA、SEM等手段分析了焊料的熔点、显微结构及焊料对Cu基板的润湿性等性能。结果表明

添加适量的稀土元素La能较好地提高Sn-Zn-Al基焊料熔点

改善焊料的铺展能力和组织均匀性。在Sn-（8.98-x）Zn-0.02Al-xLa焊料中

稀土La的最佳添加量为0.04%。

The Sn-（8.98-x）Zn-0.02Al-xLa（x=0.02～0.12） solders were prepared by vacuum melting technique.Melting point

microstructure of the solder and its wettability on Cu substrate were analyzed through X-ray diffraction（XRD）

DTA（differential thermal analysis）

SEM（scanning electron microscope）.The results show that proper rare earth La can effectively increase the melting point of Sn-Zn-Al solder

and improve the spreading ability as well as homogeneity of microstructure.With 0.04%La addition

Sn-（9-x）Zn-0.02Al-xLa solders exhibit the desirable comprehensive properties.

无铅焊料熔点显微结构润湿性能

Pb-free SolderMelting PointMicrostructureWettability

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