MANUFACTURING METHOD OF COPPER-SILVER ALLOY NANO POWDER IN A CORE-SHELL STRUCTURE FOR IMPROVING THE PROPERTY OF NANOPOWDER WITH HIGH OXIDATION

摘要

PURPOSE: A manufacturing method of copper-silver alloy nano powder in a core-shell structure is provided to prevent the oxidation of copper by coating the surface of a copper nano particle with silver, and to improve the conductivity.;CONSTITUTION: A manufacturing method of copper-silver alloy nano powder in a core-shell structure comprises the following steps: uniformly arranging copper nano powder with the size of 1~500 nanometers on a filter in an inert gas atmosphere; wetting the surface of the copper nano powder by spraying a solution including a silver ion; coating the surface of the copper nano powder with silver by an oxidation-reduction reaction; and decompressing and washing the filter for collecting the nano powder in the core-shell structure. The solution including the silver ion is selected from the group consisting of AgNO_3, Ag_2SO_4 and other metal salt compound.;COPYRIGHT KIPO 2010