Fine silver particles adhering silver copper composite powder and its fine silver particles adhering silver copper composite powder production method

摘要

PROBLEM TO BE SOLVED: To provide silver nanoparticle-adhered silver-copper composite powder in which the particles are fined and uniformized, and which has excellent low temperature sinterability and is usable for wide uses; and to provide a method for producing the same.;SOLUTION: For attaining the above problem, silver nanoparticle-adhered silver-copper composite powder in which the surface of silver-copper composite powder is adhered with silver nanoparticles is adopted. The method for producing the silver nanoparticle-adhered silver-copper composite powder is characterized in that silver-copper composite powder is brought into contact with a solution comprising a silver complex obtained by mixing silver nitrate and a complexing agent and subjecting the mixture to stirring and dissolving, and a reducing agent is added thereto, thus silver nanoparticles are precipitated into the surfaces of the powdery particles of the silver-copper powder.;COPYRIGHT: (C)2007,JPO&INPIT