| Sn-9Zn/Cu无铅焊点ZnO须自发生长 |
| |
| 引用本文： | 张亮,杨帆,郭永环,钟素娟,马佳,鲍丽.Sn-9Zn/Cu无铅焊点ZnO须自发生长[J].焊接学报,2016,37(7):1-4. |
| |
| 作者姓名： | 张亮 杨帆 郭永环 钟素娟 马佳 鲍丽 |
| |
| 作者单位： | 1.江苏师范大学 机电工程学院, 徐州 221116 |
| |
| 基金项目： | 国家自然科学基金项目(51475220)；新型钎焊材料与技术国家重点实验室开放课题(SKLABFMT－2015－03) |
| |
| 摘 要： | 研究了Sn-9Zn/Cu无铅焊点ZnO须自发生长行为.结果表明，在室温条件下Sn-9Zn/Cu无铅焊点因为富锌相的氧化，在富锌相表面自发生长出大量的ZnO须，ZnO须呈现针状、块状、花朵状等不同形态；对ZnO须进行FIB测试，发现在富锌相中出现明显的空洞，主要是因为Zn元素扩散导致的.另外，证实在Zn元素扩散与氧发生反应的过程中，富锌相发生体积收缩，诱使结构中出现明显的拉应力，拉应力为ZnO须生长提供驱动力.
|
| 关 键 词： | 无铅焊点 富锌相 ZnO须 拉应力 |
| 收稿时间： | 2015/12/29 0:00:00 |
Spontaneous growth of ZnO whiskers in Sn-9Zn/Cu lead-free solder joints |
| |
| ZHANG Liang,YANG Fan,GUO Yonghuan,ZHONG Sujuan,MA Jia and BAO Li.Spontaneous growth of ZnO whiskers in Sn-9Zn/Cu lead-free solder joints[J].Transactions of The China Welding Institution,2016,37(7):1-4. |
| |
| Authors: | ZHANG Liang YANG Fan GUO Yonghuan ZHONG Sujuan MA Jia and BAO Li |
| |
| Affiliation: | 1.School of Mechanical & Electrical Engineering, Jiangsu Normal University, Xuzhou 221116, China2.State Key Laboratory of Advanced Brazing Filler Metals & Technology, Zhengzhou Research Institute of Mechanical Engineering, Zhengzhou 450001, China |
| |
| Abstract: | Spontaneous growth of ZnO whiskers in Sn-9Zn/Cu lead-free solder joints was investigated. The results indicate that due to the oxidation of rich-Zn phases at room temperature, ZnO whisker will spontaneously grow on the surface of Zn-rich phase in Sn-9Zn/Cu lead-free solder joints, and these whiskers showed different morphologies like needle-type, bulk-type and flower-type, etc. Based on FIB test of ZnO whisker, it was found that voids appeared in the Zn-rich phase, which was induced by the diffusion of Zn atoms. In addition, during reaction between Zn and O, volume shrinkage of Zn-rich phase might happen, and the tensile stress could be generated in the structure which was the driving force of ZnO whisker growth. |
| |
| Keywords: | lead-free solder joints rich-Zn phases ZnO whiskers tensile stress |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《焊接学报》浏览原始摘要信息 |
|
点击此处可从《焊接学报》下载全文 |
|
