HYDROTHERMAL SYNTHESIS OF FIBROUS LEAD TITANATE POWDERS

被引:25
作者
OHARA, Y
KOUMOTO, K
SHIMIZU, T
YANAGIDA, H
机构
[1] NAGOYA UNIV,SCH ENGN,DEPT APPL CHEM,CHIKUSA KU,NAGOYA,AICHI 46401,JAPAN
[2] CHIBA INST TECHNOL,DEPT IND CHEM,NARASHINO,CHIBA 275,JAPAN
[3] UNIV TOKYO,FAC ENGN,DEPT IND CHEM,BUNKYO KU,TOKYO 113,JAPAN
关键词
D O I
10.1007/BF00352160
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A fibrous lead titanate (PbTiO3) powder with light-yellow colour has been prepared by hydrothermal synthesis. The influences of Pb/Ti ratio (0.3 to 1.0) in the mixture and reaction time on the formation of fibrous PbTiO3 under hydrothermal conditions have been investigated. The preferable conditions for preparing fibrous perovskite-type PbTiO3 from fibrous potassium titanate are that the Pb/Ti ratio is 1.0, reaction temperature 150 degrees C and time 72 h. The particles of fibrous powder of perovskite type are usually less than 2 mu m in diameter and more than 50 mu m in length. The fibrous morphology is essentially unchanged up to about 650 degrees C, but it disappeared after heating to 1000 degrees C.
引用
收藏
页码:263 / 266
页数:4
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