KINZOKUBIRYUSHIMATAHAKINZOKUSANKABUTSUBIRYUSHIOGANJUSURUSERAMITSUKUSUNOSEIZOHOHO

摘要

PROBLEM TO BE SOLVED: To produce ceramics contg. a large amt. of fine metal (oxide) particles by mixing a metal ion-contg. soln. with a precursor of oxide ceramics under stirring and carrying out specified treatment. SOLUTION: A metal ion-contg. soln. such as a soln. prepd. by dissolving nickel nitrate hexahydrate in ethanol is mixed with a precursor of oxide ceramics, preferably a metal alkoxide such as ethyl silicate under stirring to form a gelatinous material and this material is brought into contact with a precipitate forming agent such as ammonium carbonate. The resultant precipitate is dried and heat-treated in an oxidizing atmosphere to obtain the objective ceramics contg. fine metal oxide particles. Heat treatment is carried out in a reducing atmosphere to obtain the objective ceramics contg. fine metal particles.