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Perovskite (Ba,Sr)TiO3 glass ceramics were crystallized in the presence of La2O3 for glass ceramic system [(Ba1-xSrx)TiO3]–[2SiO2–B2O3]–[K2O]–[La2O3] (x = 0.0 and 0.4). The formation of major crystalline phase of BaTiO3 along with secondary phase of Ba2TiSi2O8 was confirmed by X-ray diffraction (XRD) studies. Major crystalline phase was clearly seen in the micrographs of (Ba,Sr)TiO3 borosilicate glass ceramic samples. The prepared glass ceramic samples showed very high values of toughness and elastic modulus. Barium strontium titanate (BST) glass ceramics are used in barrier layer capacitors for storage of high energy due to their very high dielectric constant and low dielectric loss.


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Mechanical and dielectric behaviors of perovskite (Ba,Sr)TiO3 borosilicate glass ceramics

Show Author's information Avadhesh Kumar YADAVa( )C. R. GAUTAMaAbhinay MISHRAb
Department of Physics University of Lucknow, Lucknow-226007, India
School of Materials Science and Technology, Indian Institute of Technology, Banaras Hindu University, Varanasi-221005, India

Abstract

Perovskite (Ba,Sr)TiO3 glass ceramics were crystallized in the presence of La2O3 for glass ceramic system [(Ba1-xSrx)TiO3]–[2SiO2–B2O3]–[K2O]–[La2O3] (x = 0.0 and 0.4). The formation of major crystalline phase of BaTiO3 along with secondary phase of Ba2TiSi2O8 was confirmed by X-ray diffraction (XRD) studies. Major crystalline phase was clearly seen in the micrographs of (Ba,Sr)TiO3 borosilicate glass ceramic samples. The prepared glass ceramic samples showed very high values of toughness and elastic modulus. Barium strontium titanate (BST) glass ceramics are used in barrier layer capacitors for storage of high energy due to their very high dielectric constant and low dielectric loss.

Keywords:

(Ba,Sr)TiO3, X-ray diffraction (XRD), scanning electron microscopy (SEM), elastic modulus, dielectric constant
Received: 18 February 2014 Revised: 14 March 2014 Accepted: 18 March 2014 Published: 01 June 2014 Issue date: June 2014
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Publication history

Received: 18 February 2014
Revised: 14 March 2014
Accepted: 18 March 2014
Published: 01 June 2014
Issue date: June 2014

Copyright

© The author(s) 2014

Acknowledgements

The authors gratefully acknowledge the University Grant Commission (UGC), New Delhi, India for financial support under major research project F.No.37-439/2009 (SR).

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