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Analysis of the Oxidation Process of AgSn Alloy Powder
Author(s): 
Pages: 18-21
Year: Issue:  2
Journal: Electrical Engineering Materials

Keyword:  高压水雾化氧化AgSn合金粉末自扩散系数;
Abstract: 采用高压水雾化法制备sn含量小于10%(质量分数,下同)的AgSn合金粉末.因极度过冷,所得AgSn合金粉末组织结构不是由单相α相面心立方固溶体的细小等轴晶构成,而是由在α相晶界上有少量包晶产物ξ相存在的α+ξ相构成.为探索AgSn合金粉末氧化规律,制定了一系列工艺实验,结果表明,AgSn合金粉末的氧化遵循Sn在合金粉末自扩散系数的规律.在氧化过程中,Sn从合金内向表面的自扩散系数大于O原子向合金...
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