Samsung Electro-mechanics Co., Ltd.

Samsung Fine Chemicals Co., Ltd.

Seon Cheol Park

Kang Heon Hur

Sang Kyun Lee

Woo Young Yang

Yun Jung Park

Jun Hee Lee

Keon Il Kim

Jai Joon Lee

Dong Sook Sinn

Sang Pyo Lee

Dang Hyok Yoon

Jae Chul Jung

Sung Soo Ryu

The invention relates to a method for manufacturing dielectric ceramic powder and a multilayer ceramic capacitor using the ceramic powder. According to the invention, BaCOpowder is dispersed into a solution of solvent and dispersant to prepare BaCOslurry and then the resultant BaCOslurry is wet-milled. Also, TiOpowder slurry is mixed into the wet-milled BaCOslurry to form mixed slurry and then the mixed slurry is dried into mixed powder. Finally, the dried mixed powder is calcined to produce BaTiOpowder.

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

The present invention relates to a method for preparing barium titanate based powder. More particularly, the present invention provides a method for preparing barium titanate powder comprising the following steps of precipitation of barium titanyl oxalate (BaTiO(CO).4HO) with spraying a mixture of an aqueous barium chloride (BaCl.2HO) and titanium tetrachloride (TiCl) to an aqueous solution of oxalic acid, via a nozzle; wet pulverization by using a beads mill after adding an additive such as an amine; dry; pyrolysis; and re-pulverization.

Method for preparing barium-titanate based powder

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Kyunggi-do, South Korea

Seon Cheol Park