Affiliation:
1. King Mongkut's University of Technology Thonburi
2. King Mongkut’s University of Technology Thonburi
Abstract
The aim of this paper was to study the microstructure, hardness and electrical conductivity of silver-metal oxides electrical contact materials. The Ag-SnO2, Ag-ZnO and Ag-CuO were prepared by powder metallurgy process. The density, microstructure, hardness and electrical conductivity were investigated. The results showed that the density of silver-metal oxides were 91-96% of theoretical density. The microstructures exhibited that the metal oxides were uniform dispersion in the silver matrix. The hardness of Ag-(5, 10)SnO2 and Ag-(5, 10)ZnO samples were about 100 HV and the hardness of Ag-(5, 10)CuO samples were about 88 HV. The Ag-5CuO samples had the highest electrical conductivity at the value of 91.27 %IACS.
Publisher
Trans Tech Publications, Ltd.
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