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Preparation and Properties of Bi Doped AgSnO2(12) Electrical Contact Materials
Author(s): 
Pages: 1-5
Year: Issue:  3
Journal: Electrical Engineering Materials

Keyword:  Bi dopingAg/SnO2(12)electrical contact materialpowder metallurgy(P/M) technologyelectrical properties;
Abstract: The 25% Bi doped SnO2 nano-particles(Sn0.75Bi0.25O2) were used as the reinforced phase to prepare Ag/SnO2(12) electrical contact materials by powder metallurgy(P/M) technology. The effect of Bi element on the properties of Ag/SnO2(12) electrical contact materials was analyzed. Results show that Ag/SnO2(12) electrical contact materials with Sn0.75Bi0.25O2 nano-particles exhibit uniform structure, higher density and hardness and greater conductivity. The electrical property experiment results show that the Ag/SnO2(12) electrical contact materials have advantages, including the short arc time, the low arc energy, the lower and more stable contact resistance and the better anti-arc erosion ability.
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