MANUFACTURING METHOD OF BARIUM TITANATE POWDER USING A SOLID STATE REACTION CAPABLE OF OBTAINING BARIUM TITANATE POWDER WITH HIGH CRYSTALLINE PROPERTY

摘要

PURPOSE: A manufacturing method of barium titanate powder using a solid state reaction is provided to manufacture uniform sized barium titanate (BaTiO3) powder by adding ammonium compound as additive in order to control grain growth.;CONSTITUTION: A manufacturing method of barium titanate powder using a solid phase method comprises a step of adding ammonium based compound while manufacturing mixed slurry of titanium oxide(TiO2) and barium carbonate(BaCO3). The ammonium based compound is included 0.5-10 wt% compared to solid content amount of barium carbonate (BaCO3) and titanium oxide(TiO2) within the mixed slurry. The ammonium based compound is more than one kind which is selected from ammonium carbonate, ammonia, ammonium sulfate, ammonium chloride, ammonium nitrate, phosphoric acid ammonium, and ammonia solution. A specific surface area of the barium carbonate is 20-50m/g and the specific surface area of the titanium oxide is 2-50m/g.;COPYRIGHT KIPO 2012