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Ferroelectrics Volume 419, 2011 - Issue 1
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Original Articles

Phase Development and Dielectric Properties of Barium Strontium Titanate Based Glass Ceramics

Xiangrong Wang State Key Laboratory of New Ceramics and Fine Processing, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, P R China
,
Yong Zhang State Key Laboratory of New Ceramics and Fine Processing, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, P R China
,
Zongbao Yuan State Key Laboratory of New Ceramics and Fine Processing, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, P R China
,
Tao Ma State Key Laboratory of New Ceramics and Fine Processing, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, P R China
,
Changsheng Deng State Key Laboratory of New Ceramics and Fine Processing, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, P R China
&
Xiaming Dai State Key Laboratory of New Ceramics and Fine Processing, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, P R China
Pages 53-58 | Received 12 Aug 2010, Published online: 25 Oct 2011
 
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Abstract

The phase development, microstructural evolution, dielectric properties and energy storage characteristics were investigated as a function of crystallization temperature in barium strontium titanate-based glass ceramics. According to the XRD study, a majority phrase (Ba, Sr)TiO3 and the minor phase BaAl2Si2O8 were formed during the crystallization. Scanning electron microscopy investigations have revealed that with increasing crystallization temperature the volume faction of crystalline phases as well as their crystalline sizes increase. In addition, as the crystallization temperature increased, the dielectric constant of the glass ceramics increased and the dielectric breakdown strength decreased. The correlation between the dielectric properties and energy storage characteristics was qualitatively discussed.

Acknowledgments

The authors are grateful to the Ministry of Sciences and Technology of China through 863-project under grant 2007AA03Z323, and National Natural Science Foundation of China (Grant No. 50977049) for financial support. Technical help by S. Q. Tong, C. L. Huang and D. H. Hao are recognized.

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