| Nano ZrO2 Particulate-reinforced Lead-Free Solder Composite |
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| 作者姓名： | Jun SHEN Yongchang LIU Dongjiang WANG Houxiu GAO |
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| 作者单位： | College of Materials Science ＆ Engineering,Tianjin University, Tianjin 300072, China |
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| 基金项目： | 中国科学院资助项目，天津市自然科学基金，Fok Ying Tong Education Foundation，FANEDD of China |
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| 摘 要： | A lead-free solder composite was prepared by adding ZrO2 nanopowders in eutectic Sn-Ag alloy. Microstrucrural features and microhardness properties of those solders with different ZrO2 nanopowder fraction were examined. Results indicate that the addition of ZrO2 nanopowders reduced the size of β-Sn grains and restrained the formation of bulk Ag3Sn intermetallic compounds （IMCs） due to the adsorption effect of the ZrO2 particles. The Vicker＇s hardness of the obtained lead-free solder composites fits well with the HalI-Petch relationship. The refinement of β-Sn grains favors to improve the microhardness of composite solders.
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| 关 键 词： | 纳米氧化锆颗粒 微观结构 焊接复合料 显微硬度 |
| 收稿时间： | 2005-06-23 |
Nano ZrO2 Particulate-reinforced Lead-Free Solder Composite |
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| Jun SHEN Yongchang LIU Dongjiang WANG Houxiu GAO.Nano ZrO2 Particulate-reinforced Lead-Free Solder Composite[J].Journal of Materials Science & Technology,2006,22(4):529-532. |
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| Authors: | Jun SHEN Yongchang LIU Dongjiang WANG Houxiu GAO |
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| Affiliation: | College of Materials Science & Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | A lead-free solder composite was prepared by adding ZrO2 nanopowders in eutectic Sn-Ag alloy. Microstructural features and microhardness properties of those solders with different ZrO2 nanopowder fraction were examined. Results indicate that the addition of ZrO2 nanopowders reduced the size ofβ-Sn grains and restrained the formation of bulk Ag3Sn intermetallic compounds (IMCs) due to the adsorption effect of the ZrO2 particles. The Vicker's hardness of the obtained lead-free solder composites fits well with the Hall-Petch relationship. The refinement of β-Sn grains favors to improve the microhardness of composite solders. |
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| Keywords: | ZrO2 nanopowders Microstructure Composite solder Microhardness |
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