Method of synthesizing nano grade calcium titanium ceramic powder
Title：
Method of synthesizing nano grade calcium titanium ceramic powder
Application Number：
 02153870
Application Date：
 2002/12/06
Announcement Date：
 2003/04/16
Pub. Date：
Publication Number：
 1410388
Announcement Number：
 1189422
Grant Date：
 2005-2-16
Granted Pub. Date：
 2005-2-16
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C04B 35/462, C04B 35/465, C04B 35/622
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Qi Jianquan, Li Longtu, Wang Yongli
Key Words：
 synthesizing method, nano grade, calcium titanium ceramic powder
Abstract：
 A process for synthesizing the nanometre-class perovskite ceramic powder under the conditions of temp. lower than boiling point of substrate liquid and normal pressure includes such steps as directly mixing the substrate liquid which is the aqueous solution of barium hydroxide, strontium hydroxide, calcium hydroxide and lead hydroxide with the solution of metallic alkoxide in organic solvent, adding precipitant and disperser, and drying the deposit. Its advantages are high sintering activity, uniformity and stability of Ba/Ti rate, and cubic perovskite structure.
Claim：
Priority：
PCT：
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