Method for manufacturing dielectric ceramic powder, and multilayer ceramic capacitor obtained by using the ceramic powder

摘要

The invention relates to a method for manufacturing dielectric ceramic powder and a multilayer ceramic capacitor using the ceramic powder. According to a first aspect of the invention, BaCO3 powder is dispersed into a solution of solvent and dispersant to prepare BaCO3 slurry and then the resultant BaCO3 slurry is wet-milled. Also, TiO2 powder slurry is mixed into the wet-milled BaCO3 slurry to form mixed slurry and then the mixed slurry is dried into mixed powder. Finally, the dried mixed powder is calcined to produce BaTiO3 powder. In a second aspect of the invention CaCO3 powder slurry and TiO2 powder slurry are mixed into the wet milled BaCO3 slurry, to form mixed slurry. Then the mixed slurry is dried and calcinated to produce BaCaTiO3 powder.