Preparation of Nano-Copper-Silver Alloyed Powder by Reduction Process in Liquid Phase

Based on reduction process in liquid phase with hydrazine hydrate,the preparation conditions of nano-copper-silver alloyed powder,such as the temperature,the concentration of reduction,the concentration of reactant,and the pH value,have been investigated.The results show that the optimum technology condition,with which a kind of spherical,copper-silver black and about 70 nm in particle size powder is prepared,is performed at 70 ℃ in 2.00 mol/L concentration of reduction,1.00 mol/L ,1.00 mol/L and 11.00 pH value.