abstract |
An object of the present invention is to provide an inorganic filler that can effectively inhibit elution of A-site metals such as Ba, Ca, Sr, and Mg of a perovskite-type composite oxide, and can be preferably used as an inorganic filler of a composite dielectric. do. The inorganic filler of the present invention is composed of a perovskite-type composite oxide coated by hydrolyzing a titanate-based coupling agent in a solvent, and the inorganic filler has a pH of 8.5 or less at the time of dispersion in water. In addition, the solvent is preferably water. |