Method for manufacturing dielectric ceramic powder, and multilayer ceramic capacitor obtained by using the ceramic powder
OwnerSung Ryu, Seon Park +4inventors
InventorsSung Ryu, Seon Park, Sang Lee, Dong Sinn, Sang Lee, Dang Yoon
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Abstract
The invention relates to a method for manufacturing dielectric ceramic powder and a multilayer ceramic capacitor using the ceramic powder. According to 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.
Claims29
A method for manufacturing dielectric ceramic powder comprising steps of:
- dispersing BaCO3 powder into a solution of solvent and dispersant to prepare a slurry and then wet-milling the slurry;
- mixing TiO2 powder slurry into the wet-milled BaCO3 slurry to form mixed slurry and then drying the mixed slurry into mixed powder;
- and
- calcining the dried mixed powder to produce BaTiO3 powder.
A method for manufacturing dielectric ceramic powder comprising steps of:
- dispersing BaCO3 powder into a solution of solvent and dispersant to prepare a slurry and then wet-milling the slurry;
- mixing CaCO3 powder slurry and TiO2 powder slurry into the wet-milled BaCO3 slurry to form mixed slurry, and then drying the mixed slurry;
- and
- calcining the dried mixed powder to produce BaCaTiO3 powder.
Dependencies are inferred from the claim text.