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Sr1+xSm1-xAl1-xTixO4微波陶瓷介电性能研究

赵学国 罗民华

人工晶体学报2011,Vol.40Issue(5):1348-1352,5.
人工晶体学报2011,Vol.40Issue(5):1348-1352,5.

Sr1+xSm1-xAl1-xTixO4微波陶瓷介电性能研究

Study on Microwave Dielectric Properties of Sr1+x Sm1-x Al1-x Tix O4 Ceramics

赵学国 1罗民华1

作者信息

  • 1. 景德镇陶瓷学院国家日用建筑陶瓷工程技术研究中心,景德镇333001
  • 折叠

摘要

Abstract

Sr1+xSm1-xAl1-xTixO4 ceramics were prepared by solid phase reaction method with Al2O3,TiO2 as raw materials, and its microstructure and microwave dielectric properties were studied. The results indicate the cell dimensions of SrSmA1O4 crystalline are expanded by adding SrTiO3; the sintering temperature and its relative density are effectively decreased, and its relative permittivity and quality factor are improved, however, its temperature coefficient of resonant frequency is influenced little. When the sintering temperature is 1420 ℃/2 h, the Sr1. 2Sm0.8Al0.8Ti0.2O4 ceramics exhibit a relative permittivity,εr = 28,Q ×f=52600 GHz, and temperature coefficient of resonant frequency,τf -4 ppm/℃.

关键词

微波介质陶瓷/SrSmAlO4陶瓷/烧结温度/介电性能

Key words

microwave dielectric ceramics/ Sr1+x Sm1-x Al1-x TixO4 ceramics/ sintering temperature/dielectric properties

分类

化学化工

引用本文复制引用

赵学国,罗民华..Sr1+xSm1-xAl1-xTixO4微波陶瓷介电性能研究[J].人工晶体学报,2011,40(5):1348-1352,5.

基金项目

景德镇陶瓷学院博士资助项目 ()

人工晶体学报

OA北大核心CSCDCSTPCD

1000-985X

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