Ag-In合金在不同氧分压下的氧化现象  

THE OXIDATION PHENOMENA OF Ag-In ALLOYS AT DIFFERENT OXYGEN PARTIAL PRESSURE

作　　者：王德仁[1] 何业东[1] 李顺华[1] 高唯[2] 

机构地区：[1]北京科技大学腐蚀与防护中心,北京100083 [2]奥克兰大学

出　　处：《中国腐蚀与防护学报》2002年第2期79-83,共5页Journal of Chinese Society For Corrosion and Protection

基　　金：教育部博士点专项科研基金项目

摘　　要：利用低氧分压控制系统 ,研究了两种In含量的Ag -In合金在 5 5 0℃和不同氧分压条件下的氧化行为 .结果表明 :在可以发生内氧化的实验条件下 ,合金外表面上都有In2 O3 生成 ,不同氧分压下所生成的In2 O3 表现出明显的形状差异 .0 .2 1× 10 5Pa氧分压下合金试样氧化后表面有颗粒状In2 O3 和纯银块生成 ,而在低氧分压下试样表面只有丝状的In2 O3 生成 .随着合金中In含量的提高或系统内氧分压的降低 ,均可起到促进In2 O3 在试样表面生成的作用 .The oxidation behaviors of Ag-In alloys with different indium content were studied at different oxygen partial pressure controlled by an oxygen pump system.It is shown that both In 2O 3 particles and nano-size fibres can form on the surface of Ag-In alloys at different conditions:P O 2 =0.21×10 -5 Pa and 550℃,at which internal oxidation may occur in the Ag-In alloys.When Ag-In alloy oxidized at P O 2 0.21×10 5 Pa,In 2O 3 particles and pure Ag nodules appeared on the surface of Ag-In alloys.While at low oxygen partial pressures,nano-size In 2O 3 fibres formed on the surface of Ag-In alloys.Increasing the Indium content in the alloys or decreasing system oxygen partial pressure can promote the formation of In 2O 3 on the surface of alloys.

关 键 词：氧化 AgIn合金 低氧分压控制系统 银合金 选择性氧化理论 

分 类 号：TG172.82[金属学及工艺—金属表面处理]