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Title:
水溶媒希土類金属化合物ゾル及びその製造方法、並びにそれを用いたセラミック粉末の製造方法
Document Type and Number:
Japanese Patent JP4548340
Kind Code:
B2
Abstract:
A particulate subcomponent for a barium titanate dielectric is obtained from a sol in which a rare earth metal compound is dispersed in water. The rare earth metal compound includes a carboxylic acid having at least three carbonyl groups and at least one rare earth metal which can be Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu so that the molar ratio (carbonyl group/rare earth metal) is in the range of 1.2 to 3. A method of making the sol and a method of using the sol to make a ceramic powder is described.

Inventors:
Takashi Hasegawa
Yasuya Nakamura
Kazushige Okada
Application Number:
JP2005515238A
Publication Date:
September 22, 2010
Filing Date:
September 27, 2004
Export Citation:
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Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
C07C51/41; C04B35/468; C04B35/50; C04B35/624; C07C55/06; C07C55/10; C07C59/265; C01F17/00
Domestic Patent References:
JPH08319114A1996-12-03
Foreign References:
US20020110517A12002-08-15
US5407618A1995-04-18
Attorney, Agent or Firm:
Hajime Ohara