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Author:

董文兴 (董文兴.) | 史耀武 (史耀武.) | 夏志东 (夏志东.) | 雷永平 (雷永平.)

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CQVIP PKU CSCD

Abstract:

针对印刷电路板(PCB)上无铅钎料srAgCu微小焊点的结晶裂纹,利用设计的试件重现无铅钎料钎焊过程中产生的结晶裂纹,对无铅钎料结晶裂纹进行模拟,同时研究了微量元素的添加对snAgCu合金焊点结晶裂纹形成的影响.结果表明,在尺寸很小的焊点上仍然存在明显的结晶裂纹.用焊点结晶裂纹的总长度定量地评价无铅钎料结晶裂纹的敏感倾向,添加Ni和Ce元素能够降低无铅钎料结晶裂纹的形成,而P元素的添加却加剧了结晶裂纹的形成,明显增加了焊点处的结晶裂纹.

Keyword:

无铅钎料 SnAgCu钎料 结晶裂纹

Author Community:

  • [ 1 ] [董文兴]北京工业大学
  • [ 2 ] [史耀武]北京工业大学
  • [ 3 ] [夏志东]北京工业大学
  • [ 4 ] [雷永平]北京工业大学

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Source :

焊接学报

ISSN: 0253-360X

Year: 2008

Issue: 12

Volume: 29

Page: 61-63,68

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: 6

Chinese Cited Count:

30 Days PV: 2

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