| 稀土元素对无铅钎料微观结构及性能的影响 |
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| 引用本文： | 刘文胜,罗莉,马运柱.稀土元素对无铅钎料微观结构及性能的影响[J].电子元件与材料,2011,30(4):71-74. |
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| 作者姓名： | 刘文胜 罗莉 马运柱 |
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| 作者单位： | 中南大学粉末冶金国家重点实验室; |
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| 基金项目： | 国家配套资助项目(No.JPPT—115—2—1057) |
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| 摘 要： | 添加适量的稀土元素可以有效提高无铅钎料(如SnAgCu,SnZn)的性能,尤其是添加稀土的SnAgCu钎料的蠕变断裂寿命是未添加时的7倍.针对添加微量稀土元素对无铅钎料润湿性、力学性能、蠕变性能以及电迁移行为的影响,特别是对钎料微观结构的变化规律进行了综述,并指出了新型钎料的应用及发展前景.
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| 关 键 词： | 无铅钎料 稀土元素 综述 结构 性能 |
Effects of rare earths on microstructures and properties of lead-free solders |
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| LIU Wensheng,LUO Li,MA Yunzhu.Effects of rare earths on microstructures and properties of lead-free solders[J].Electronic Components & Materials,2011,30(4):71-74. |
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| Authors: | LIU Wensheng LUO Li MA Yunzhu |
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| Affiliation: | LIU Wensheng,LUO Li,MA Yunzhu(State Key Laboratory for Powder Metallurgy,Central South University,Changsha 410083,China) |
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| Abstract: | The properties of lead-free solder such as SnAgCu,SnZn are enhanced effectively by trace amount of rare earths(RE elements) addition.In particular,the creep rupture life increases seven times for SnAgCu solder after adding rare earths.The effects of RE elements on wetting behavior,mechanical properties,creep behavior and electromigration of lead-free solder alloys,especially on the variation law of microstructure of lead-free solder are summarized,and the application and prospects of new lead-free solders a... |
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| Keywords: | lead-free solder rare earths review structure property |
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