| 摘要 |
Provided is a modified perovskite type composite oxide in which the dielectric characteristics are equal to or better than those prior to modification, there is no substantial elution of coating components from the modifying coating components, and elution of the A-site metals is suppressed effectively, while the cracking traits are good. A modified perovskite type composite oxide in which the particle surface of a perovskite type composite oxide is firstly coated with at least one selected from a group consisting of TiO2, Al2O3, ZrO2, and Nd2O3, wherein the first coating is formed by hydrolyzing at least one selected from a group consisting of a hydrolyzable TiO2 precursor, a hydrolyzable Al2O3 precursor, a hydrolyzable ZrO2 precursor, and a hydrolyzable Nd2O3 precursor, and then calcining it at 700° C. to 1200° C.
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