MANUFACTURING METHOD OF TUNGSTEN-COPPER NANO-COMPOSITE POWDER AND A MANUFACTURING METHOD OF TUNGSTEN-COPPER COMPOSITE USING THE METHOD CAPABLE OF ENABLING MANUFACTURING TUNGSTEN-COPPER COMPOSITE WHICH IS ELABORATING AT LOW TEMPERATURE LIQUID SINTERING

摘要

PURPOSE: A manufacturing method of tungsten-copper nano-composite powder and a manufacturing method of tungsten-copper composite using the method are provided to obtain tungsten-copper nano-composite powder having uniform particle size distribution as nano size.;CONSTITUTION: A manufacturing method of tungsten-copper nano-composite powder comprises the following steps: pulverizing after putting tungsten oxide powder and copper oxide powder into a wet ball miller; drying mixed powder of the pulverized copper oxide powder and tungsten oxide powder; placing the dried compound powder in a furnace; reducing copper oxide to copper by heat treating at a first temperature of 150-400 deg. Celsius under a reductive gas atmosphere including hydrogen; reducing tungsten oxide to tungsten by slowly increasing to a second temperature of 600-1000 deg. Celsius at a rate of 0.1-2 deg. Celsius/min and heat treating under the reductive gas atmosphere including hydrogen; and obtaining tungsten-copper nano-composite powder by cooling the furnace.;COPYRIGHT KIPO 2012