Microstructure and microwave dielectric properties of CaO-B2O3-SiO2 glass ceramics with various B2O3 contents

被引：0

作者：

韦鹏飞 ^{[1
,2
]}

周洪庆 ^{[1
]}

朱海奎 ^{[3
]}

戴斌 ^{[1
]}

王杰 ^{[1
]}

机构：

[1] College of Materials Science and Engineering,Nanjing University of Technology

[2] College of Materials Engineering,Jinling Institute of Technology

[3] College of Materials Science and Engineering,Nanjing University of Technology,Nanjing 210009,China

来源：

Journal of Central South University | 2011年 / 18卷 / 05期

关键词：

CaO-B2O3-SiO2; B2O3; content; Fourier transform infrared spectroscopy; microstructure; dielectric properties;

D O I：

暂无

中图分类号：

TQ174.1 [基础理论];

学科分类号：

0805 ; 080502 ;

摘要：

The effects of B2O3 addition on both the sintering behavior and microwave dielectric properties of CaO-B2O3-SiO2 (CBS) glass ceramics were investigated by Fourier transform infrared spectroscopy (FTIR),X-ray diffractometry (XRD) and scanning electron microscopy (SEM).The results show that the increasing amount of B2O3 causes the increase of the contents of [BO3],[BO4] and [SiO4],which deduces the increase of CaB2O4 and α-SiO2 and the decrease of CaSiO3 correspondingly.No new phase is observed throughout the entire experiments.A bulk density of 2.54 g/cm3,a thermal expansion coefficient value of 11.95×10-6 °C -1 (20-500°C),a dielectric constant εr value of 6.42 and a dielectric loss tan δ value of 0.000 9 (measured at 9.7 GHz) are obtained for CBS glass ceramics containing 35% B2O3 (mass fraction) sintered at 850 °C for 15 min.

引用

页码：1359 / 1364

页数：6

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