Barium titanate coated with magnesium titanate via fused salt method and its dielectric property

被引：11

作者：

Chen, RZ ^{[1
]}

Cui, AL

Wang, XH

Li, LT

机构：

[1] Tsing Hua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R China

[2] Tsing Hua Univ, Dept Chem, Beijing 100084, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2003年 / 99卷 / 1-3期

关键词：

fused salt method; barium titanate; coating; dielectric constant;

D O I：

10.1016/S0921-5107(02)00557-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Barium titanate fine particles were coated homogeneously with magnesium titanate via the fused salt method. The thickness of the magnesium titanate film is 20 nm, as verified by TEM and XRD. The mechanism of the coating is that: when magnesium chloride is Equated in 800 degreesC, magnesium will replace barium in barium titanate, and form magnesium titanate film on the surface of barium titanate particles. Ceramics sintered from the coated particles show improved high frequency ability. The dielectric constant is about 130 at the frequency from 1 to 800 MHz. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：302 / 305

页数：4