Study on Isothermal Internal Oxidation Process of Ag-Cd and Ag-Sn-In Alloys
8 different compositions of Ag-Cd and Ag-Sn-In alloys were prepared and their isothermal internal oxidation processes were investigated. In addition, the microstructure and hardness of different regions after oxidation of these eight alloys were characterized. The results show that the isothermal oxidation curves of Ag-Cd and Ag-Sn-In alloys exhibit a parabolic shape. Based on the curves, a linear equation between the logarithm of the oxidation thickness square and the logarithm of the oxidation time was summarized, and the microstructure and hardness of Ag-CdO and Ag-SnO2-In2O3 contacts were analyzed and compared.
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