In this paper,alloy powder pre-oxidation method was used to prepare AgZnO electrical contact materials of 8%-12% ZnO and their mechanical and physical properties,metallographic structure and electrical properties were tested for comparative analysis.The results showed that with contents of ZnO,the electrical resistivity of prepared wires was gradually increased,their densities were gradually decreased and their hardness and tensile strengths tended to increase.Electrical life was tested under the condition of low current within 20 A,and the result showed that with the increase of contents of ZnO,the electrical life tended to be decrease,and AgZnO(8)had a relatively better comprehensive electrical properties in condition of AC.
维普
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