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Title:
METHOD FOR PRODUCING BARIUM TITANATE POWDER
Document Type and Number:
Japanese Patent JP2011121820
Kind Code:
A
Abstract:

To control a rise in CO2 concentration during a solid phase reaction and to obtain a micro barium titanate powder.

A method for producing a barium titanate powder includes at least: a step of mixing a titanium oxide powder with a barium carbonate powder; a step of raising a temperature to react the titanium oxide powder with the barium carbonate powder by heating the mixture inside a space to obtain a barium titanate powder. At least in the step of raising the temperature, in a range of a temperature where the titanium oxide powder reacts to the barium carbonate powder, the CO2 concentration inside the space is less than 1%. As a result, the method proceeds the solid phase reaction while controlling each grain growth in a stage that the titanium oxide powder does not yet react to the barium carbonate powder, thereby producing a more micro barium titanate powder.


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Inventors:
HOGIRI MASAYUKI
TOMIOKA SATOSHI
KAGATA HIROSHI
Application Number:
JP2009281262A
Publication Date:
June 23, 2011
Filing Date:
December 11, 2009
Export Citation:
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Assignee:
PANASONIC CORP
International Classes:
C01G23/00
Attorney, Agent or Firm:
Hiroki Naito
Daisuke Nagano
Kentaro Fujii



 
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