Loading patent…
AssigneeNippon Chemical Industrial Co., Ltd.
InventorsNaoaki Narishige, Shinji Tanabe
Estimating the term…
It is an object of the present invention to provide: a modified perovskite-type composite oxide, which effectively suppresses elution of A-site metals from a perovskite-type composite oxide, and which can be particularly preferably used as an inorganic filler for a composite dielectric body; a method for producing the same; and a composite dielectric material using the same. The modified perovskite-type composite oxide of the present invention is produced by primarily coating the particle surface of a perovskite-type composite oxide with silica and then secondarily coating it with a coupling agent, characterized in that the layer primarily coated with silica is produced by performing a heat treatment at 800° C. to 1200° C. on hydrolyzed silica obtained by the hydrolysis of tetraalkoxysilane.
A modified perovskite-type composite oxide, which is produced by primarily coating a particle surface of a perovskite-type composite oxide with a layer of silica and then secondarily coating the resultant particle surface with a coupling agent, wherein the layer primarily coated with silica is produced by performing a heat treatment at 800° C. to 1200° C. on hydrolyzed silica obtained by the hydrolysis of tetraalkoxysilane.
A method for producing a modified perovskite-type composite oxide, comprising the steps of:
A composite dielectric material, comprising:
Dependencies are inferred from the claim text.