Controlled double-jet precipitation of uniform colloidal crystalline particles of Zr- and Sr-doped barium titanates

被引：15

作者：

Her, YS ^{[1
]}

Matijevic, E ^{[1
]}

Chon, MC ^{[1
]}

机构：

[1] CHON INT,CHONGNO KU,SEOUL 110071,SOUTH KOREA

来源：

JOURNAL OF MATERIALS RESEARCH | 1996年 / 11卷 / 12期

关键词：

D O I：

10.1557/JMR.1996.0396

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The synthesis of uniform colloidal crystalline particles of Zr- and Sr-doped barium titanates at a low temperature of 85 degrees C by the controlled double-jet precipitation (CDJP) technique is described. The stoichiometry of the powders can be precisely controlled by adjusting the compositions of the starting reactant solutions. Barium titanate with 20% Zr substitution, sintered at 1275 degrees C, satisfied the requirements for the Y5V multilayer capacitors application. The grain sizes are uniform and small, ranging from 1 to 3 mu m. Solids with an extremely sharp change in the dielectric constant as a function of temperature, which are suitable for thermal IR detectors application, can be obtained when both Sr and Zr are incorporated as dopants.

引用

页码：3121 / 3127

页数：7

共 18 条

[1]

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[2]

Dawson W.J., 1988, CERAM B, V67, P1673

[3]

DAWSON WJ, 1990, Patent No. 9006291

[4] AN AQUEOUS SYNTHESIS OF BARIUM TITANATE [J].