Effects of B2O3 addition on the microstructure and microwave dielectric properties of La4Ba2Ti5O18

被引：12

作者：

Hsiang, Hsing-I ^{[1
]}

Chung, Sheng-Heng ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Resources Engn, Particulate Mat Res Ctr, Tainan 701, Taiwan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 465卷 / 1-2期

关键词：

Oxide materials; Sintering; Dielectric response;

D O I：

10.1016/j.jallcom.2007.10.124

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, the effects of B2O3 addition on both the sintering behavior and microwave dielectric properties of La4Ba2Ti5O18 hexagonal perovskite were investigated. The results indicate that B2O3 can promote the formation of La4Ba2Ti5O18 hexagonal perovskite and can be used as a sintering aid to reduce the sintering temperature to 1200-1300 degrees C. The microwave dielectric properties of La4Ba2Ti5O18 hexagonal perovskite with B2O3 shows a high dielectric constant of 30, a high quality factor with Qxf in the 10,000-20,000 GHz range, and a temperature coefficient of resonant frequency of 55 ppm/degrees C. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：356 / 360

页数：5

共 6 条

[1] Microwave dielectric properties of MO-La2O3-TiO2 (M = Ca, Sr, Ba) ceramics [J].