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微量添加In對(duì)Ag-Sn合金粉末氧化機(jī)理的影響
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廣西千億元產(chǎn)業(yè)重大科技攻關(guān)工程項(xiàng)目（桂科攻11107003-16）


Effects of Minor In Addition on Oxidation Mechanism of Ag-Sn Alloy Powders
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    摘要:

    采用霧化法分別制備了Ag-9.5Sn和Ag-7.6Sn-0.87In合金粉末，使用熱重分析儀研究了相關(guān)合金在900 ℃氧化動(dòng)力學(xué)曲線；并分析了合金粉末氧化前后的粉末顆粒形貌及表面成分。結(jié)果表明：Ag-7.6Sn-0.87In合金粉末氧化時(shí)，其快速氧化增重過(guò)程分為兩階段，且第1階段快速增重速率比第2階段快；微量添加In能促進(jìn)第1段快速氧化增重，In與Sn氧化后形成一層均勻致密的氧化膜阻礙了第2階段快速氧化增重。

    Abstract:

    Ag-9.5Sn (wt/%) and Ag-7.6Sn-0.87In (wt/%) alloy powders were synthesized by atomization. Oxidation kinetics curves of Ag-Sn-In alloy powder, Ag-Sn alloy powder, pure Sn powder and pure Indium powder were obtained by thermo gravimetric analyzer (TGA). The particle size, surface morphology and surface composition of Ag-Sn-In alloy powders before and after oxidation were investigated. The results show that rapid oxidation mass gain process of Ag-Sn-In alloy powders is divided into two periods, and the former is faster than the latter. Minor In addition could promote rapid oxidation mass gain of the first period. Uniform dense oxide film is formed after In and Sn being oxidized, which hinders the second period of rapid oxidation mass gain process.

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李 波,劉心宇,黃錫文,葉 凡,張小文,張 琪,陳光明.微量添加In對(duì)Ag-Sn合金粉末氧化機(jī)理的影響[J].稀有金屬材料與工程,2014,43(8):1964~1968.[Li Bo, Liu Xinyu, Huang Xiwen, Ye Fan, Zhang Xiaowen, Zhang Qi, Chen Guangming. Effects of Minor In Addition on Oxidation Mechanism of Ag-Sn Alloy Powders[J]. Rare Metal Materials and Engineering,2014,43(8):1964~1968.]
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  • 收稿日期:2013-08-23
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  • 在線發(fā)布日期: 2015-01-04
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