【摘要】 采用反应合成法与粉末冶金法制备了Ag/CuO复合材料,研究了2种制备方法所获得Ag/CuO复合材料的显微组织与性能。结果表明,反应合成法制备的Ag/CuO复合材料具有独特的环状组织特点,这一特点决定了反应合成制备的Ag/CuO复合材料的机械性能和电学性能要好于粉末冶金制备的Ag/CuO复合材料。在220V交流和24V直流实验条件下,反应合成制备的Ag/CuO复合材料的电寿命是粉末冶金制备的Ag/CuO复合材料的2倍。更多还原

【Abstract】 Silver copper oxide composites were prepared by reactive synthesis and powder metallurgy methods, Microstructures and properties of silver copper oxide composites by the two methods were studied in the present paper. The results show that silver copper oxide fabricated by reactive synthesis possess unique ringed microstructure that brings its good mechanical and alternating current contact properties. It means that reactive synthesis method can obtain better mechanic properties than powder metallurgy method in fabrication silver copper oxide composites. The service life of Ag/CuO material with reactive synthesis was twice as long as it with powder metallurgy under AC (220 V) and DC (24 V).更多还原