GOLD POWDER FOR GOLD CLAY, AND GOLD CLAY COMPRISING THE GOLD POWDER

摘要

PROBLEM TO BE SOLVED: To obtain a dense sintered compact even if a molding produced using gold clay comprising gold powder in this invention is fired at a relatively low temperature, and further, to allow the surface of the sintered compact to exhibit the gloss characteristic of gold by a polishing operation in a relatively short time.;SOLUTION: The gold powder for gold clay is composed of a mixture of first gold grains with the average grain diameter of 1 to 30 nm by 1 to 30 wt.% and second gold grains with the average grain diameter of 0.1 to 30 μm by 99 to 70 wt.%. The second gold grains are composed of either or both of the small-sized grains with the average grain diameter of 0.1 to 2 μm and the large-sized grains with the average grain diameter of 2 to 30 μm.;COPYRIGHT: (C)2008,JPO&INPIT