无机材料学报

• 研究论文 • 上一篇    下一篇

BaFe12O19/SiO2微晶玻璃陶瓷的柠檬酸盐Sol-Gel合成及其微波性能的研究

张海军; 姚熹; 张良莹   

  1. 同济大学功能材料研究所 上海 200092
  • 收稿日期:2000-12-08 修回日期:2001-01-08 出版日期:2001-11-20 网络出版日期:2001-11-20

Studies on Preparation and Microwave Properties of BaFe12O19/SiO2 Microcrystallite Glass Ceramics by Citrate Sol-Gel Process

ZHANG Hai-Jun; YAO Xi; ZHANG Liang-Ying   

  1. Functional Material Research Laboratory; Tongji University; Shanghai 200092; China
  • Received:2000-12-08 Revised:2001-01-08 Published:2001-11-20 Online:2001-11-20

摘要: 采用柠檬酸 Sol-gel工艺合成了 BaFe1219/SiO微晶玻璃陶瓷,并对其介电常数及其磁导率在100MHz~6GHz下的变化规律进行了研究.结果表明,BaFe1219/SiO微晶玻璃陶瓷的合成与体系中 Fe/Ba、烧结温度密切相关;其介电常数、磁导率基本都随测试频率的增加而下降;介电损耗值最大达到0.40,磁损耗值较小.

关键词: BaFe12O19/SiO2, 微晶玻璃陶瓷, Sol-gel, 微波性能

Abstract: BaFe12O19/SiO2 microcrystallite glass ceramics were prepared by citrate so1-gel pro- cess; The complex dielectric constant and complex permeability dispersion were investigated in 100MHz-6GHz range. The results obtained show those conditions such as Ba/Fe, sintering tem- perature have a close effect on the synthesis of BaFe12O19/SiO2 microcrystallite glass ceramics; the complex dielectric constant and complex permeability will decrease as the measuring frequency increasing, and maximum dielectric loss is 0.40, but magnetic loss nearoy zero.

Key words: BaFe12O19/SiO2, microcrystallite, glass ceramics, sol-gel, microwave properties

中图分类号: