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The Study of the Sn-In Ratio on the Oxidation Reaction of Rapidly Solidified Ag-Sn-In Alloys  

Chang, Dae-Jung (Han Yang University)
Kwon, Gi-Bong (Machinery & Material Center, Korea Testing Laboratory)
Cho, Dae-Hyoung (Machinery & Material Center, Korea Testing Laboratory)
Kim, Jung-Su (Han Yang University)
Nam, Tae-Woon (Han Yang University)
Publication Information
Journal of Korea Foundry Society / v.27, no.2, 2007 , pp. 72-76 More about this Journal
Abstract
Contact materials are widely used as electrical parts. Ag-Cd alloy has a good wear resistance and stable contact resistance. But the Cd exists as coarse oxide in alloy so it have an effect on mechanical properties badly. Moreover, the Cd is an injury material to environment. Nowadays, the use of Cd is strictly restricted. Because of these disadvantage, Ag-Sn-In alloy has been developed. In Ag-Sn-In alloy, the Sn : In ratio affects the internal oxidation properties, such as the formation of the oxide layer on the surface. In this work, we changed and optimized the Sn : In ratio variety for good internal oxidation properties. We have shown that a internal oxidation process did not fully completed when the Sn : In ratio is over 4 : 1 because of the Sn oxide layer at surface. The increase of In decelerates the formation of Sn oxide layer.
Keywords
Contact material; Internal oxidation; Oxide particle; Ag-Sn-In; Rapid solidification process;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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