Barium titanate powders synthesis from solvothermal reaction and supercritical treatment

被引：58
作者：
Bocquet, JF [1 ]
Chhor, K [1 ]
Pommier, C [1 ]
机构：
[1] Univ Paris 13, CNRS, Lab Ingn Mat & Hautes Press, F-93430 Villetaneuse, France
来源：
MATERIALS CHEMISTRY AND PHYSICS | 1999年 / 57卷 / 03期
关键词：
barium titanate; powder synthesis process; supercritical medium; dielectric constant;
D O I：
10.1016/S0254-0584(98)00233-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new semi-continuous process is reported for BaTiO3 powders synthesis under high pressure (10 MPa). The first step is the hydrolysis of the alkoxide BaTi(O-iC(3)H(7))(6) in isopropanol at temperatures between 100 degrees C and 200 degrees C in tubular flow reactor. The second one is a thermal treatment of the formed solids, under the supercritical state of the solvent. Particle size of the dried crystalline recovered powders is around 10 nm. Powder sintering and ceramic dielectric properties have been tested. (C) 1999 Elsevier Science S.A. All rights reserved.
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收藏
页码：273 / 280
页数：8
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