METHOD FOR PRODUCTION OF DIELECTRIC CERAMIC PARTICLE, AND DIELECTRIC CERAMIC PARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a method for producing dielectric ceramic particles having a core-shell structure using a more inexpensive raw material.SOLUTION: There is provided a method for production of the dielectric ceramic particle having a core particle comprising a first composite oxide having a perovskite structure at 25°C as a main component, and a shell phase formed on the surface of the core particle and comprising a second composite oxide different from the first one as the main component. The method includes a process of obtaining a raw material mixture by dry-blending the core particle with a raw material compound of the second composite oxide to clad the core particle with that raw material compound, and a process of applying the hydrothermal or solvothermal synthesis to the raw material mixture. The dry blending is carried out by a mechanical rotor having a mechanism rotating at a specific angular speed.SELECTED DRAWING: None