| 摘要 |
PROBLEM TO BE SOLVED: To obtain barium titanate powder to be sintered to obtain a dielectric in a laminated ceramic capacitor, wherein the powder is down-sized and improved in crystal form to enable to improve the temperature characteristic of capacitance in the laminated ceramic capacitor. SOLUTION: The method for producing barium titanate powder comprises mixing a barium compound producing barium oxide by pyrolysis and titanium dioxide having >=99.8 wt.% purity, >=5 m<2> /g specific surface area obtained by BET method and <=30%, preferably <=5%, rutile ratio obtained by X-ray diffraction method, and calcining preferably under a circumferential pressure of <=1×10<3> Pa in total pressure. The obtained barium titanate powder is microparticle and contains high tetragonal crystallinity. |
