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METHOD FOR PRODUCING BARIUM TITANATE POWDER AND MULTILAYER CERAMIC CAPACITOR
PROBLEM TO BE SOLVED: To provide a method for producing a barium titanate powder that achieves suppression of variation in particle size of the barium titanate powder and low crystallization of barium titanate by preventing reprecipitation of BaCO.SOLUTION: The method for producing a barium titanate powder comprises a mixing step of mixing a titanium compound and a barium compound with water to form a slurry and a calcination step of calcining a mixture of the titanium compound and the barium compound contained in the slurry produced in the mixing step to produce a barium titanate powder. In the method, chlorine as a chlorine ion is contained in such an amount as to be a ratio of 230 to 1,100 wt.ppm based on the amount of the barium titanate powder to be synthesized in the slurry formed in the mixing step.SELECTED DRAWING: Figure 3
【課題】ＢａＣＯ３の再析出を防止することによってチタン酸バリウム系粉末の粒子径のばらつき及びチタン酸バリウムの低結晶化を抑制して、チタン酸バリウム系粉末を製造する方法を提供すること。【解決手段】チタン化合物とバリウム化合物を水とともに混合してスラリーを作製する混合工程と、上記混合工程で得られたスラリーに含まれる、チタン化合物とバリウム化合物の混合物を仮焼してチタン酸バリウム系粉末を得る仮焼工程とを備えるチタン酸バリウム系粉末の製造方法であって、上記混合工程において作製する上記スラリー中に、合成されるべきチタン酸バリウム系粉末量に対し２３０〜１１００ｗｔｐｐｍの割合で塩素を塩素イオンとして含むことを特徴とするチタン酸バリウム系粉末の製造方法。【選択図】図３
METHOD FOR PRODUCING BARIUM TITANATE POWDER AND MULTILAYER CERAMIC CAPACITOR
PROBLEM TO BE SOLVED: To provide a method for producing a barium titanate powder that achieves suppression of variation in particle size of the barium titanate powder and low crystallization of barium titanate by preventing reprecipitation of BaCO.SOLUTION: The method for producing a barium titanate powder comprises a mixing step of mixing a titanium compound and a barium compound with water to form a slurry and a calcination step of calcining a mixture of the titanium compound and the barium compound contained in the slurry produced in the mixing step to produce a barium titanate powder. In the method, chlorine as a chlorine ion is contained in such an amount as to be a ratio of 230 to 1,100 wt.ppm based on the amount of the barium titanate powder to be synthesized in the slurry formed in the mixing step.SELECTED DRAWING: Figure 3
【課題】ＢａＣＯ３の再析出を防止することによってチタン酸バリウム系粉末の粒子径のばらつき及びチタン酸バリウムの低結晶化を抑制して、チタン酸バリウム系粉末を製造する方法を提供すること。【解決手段】チタン化合物とバリウム化合物を水とともに混合してスラリーを作製する混合工程と、上記混合工程で得られたスラリーに含まれる、チタン化合物とバリウム化合物の混合物を仮焼してチタン酸バリウム系粉末を得る仮焼工程とを備えるチタン酸バリウム系粉末の製造方法であって、上記混合工程において作製する上記スラリー中に、合成されるべきチタン酸バリウム系粉末量に対し２３０〜１１００ｗｔｐｐｍの割合で塩素を塩素イオンとして含むことを特徴とするチタン酸バリウム系粉末の製造方法。【選択図】図３
METHOD FOR PRODUCING BARIUM TITANATE POWDER AND MULTILAYER CERAMIC CAPACITOR
チタン酸バリウム系粉末の製造方法及び積層セラミックコンデンサ
AJICHI HIROKO (author) / WANG WENJUN (author) / NISHIDA SANAE (author) / TACHIBANA NORIKAZU (author) / NAKAGAWA TOSHIHARU (author)
2016-05-26
Patent
Electronic Resource
Japanese
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