Microstructure, Hardness and Electrical Conductivity of Silver-Metal Oxides Electrical Contact Materials

Kessaraporn Wathanyu; Siriporn  Rojananan

doi:10.4028/www.scientific.net/AMR.486.529

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Microstructure, Hardness and Electrical Conductivity of Silver-Metal Oxides Electrical Contact Materials
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 486Microstructure, Hardness and Electrical...

Microstructure, Hardness and Electrical Conductivity of Silver-Metal Oxides Electrical Contact Materials

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.

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Periodical:

Advanced Materials Research (Volume 486)

Pages:

529-532

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.486.529

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Online since:

March 2012

Authors:

Kessaraporn Wathanyu, Siriporn Rojananan

Keywords:

Electrical Contact Material, Metal Oxides, Powder metallurgy, Silver Composite

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