GOLD-COATED SILVER POWDER FOR SILVER CLAY HAVING EXCELLENT CORROSION RESISTANCE AND LOW TEMPERATURE SINTERABILITY, AND SILVER CLAY HAVING EXCELLENT LOW TEMPERATURE SINTERABILITY AND FREE FROM DISCOLORATION

摘要

PROBLEM TO BE SOLVED: To provide gold-coated silver powder for silver clay which has excellent corrosion resistance and low temperature sinterability, and to provide silver clay containing the gold-coated silver powder for silver clay. SOLUTION: The gold-coated silver powder is composed of a powdery mixture obtained by blending 15 to 50 mass% Au-coated Ag fine powder in which Ag fine powder having a mean particle diameter of 0.5 to 5μm is coated with an Au film with a film thickness of 0.01 to 0.1μm, and the balance Au-coated Ag powder in which Ag powder having a mean particle diameter of >5 to 50μm is coated with an Au film with a film thickness of >0.1 to 1μm. The silver clay contains the gold-coated silver powder. COPYRIGHT: (C)2005,JPO&NCIPI