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ISRN Ceramics
Volume 2012 (2012), Article ID 823903, 5 pages
http://dx.doi.org/10.5402/2012/823903
Research Article

Study of PbTiO3-Based Glass Ceramics Containing SiO2

Department of Applied Physics, Visvesvaraya National Institute of Technology, Nagpur 440010, India

Received 16 August 2012; Accepted 20 September 2012

Academic Editors: S. Bernik, J. Sheen, and T. Yanagida

Copyright © 2012 V. K. Deshpande and V. U. Rahangdale. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Glass samples with composition 50PbO : 25TiO2 : (25-X) B2O3 : XSiO2 (with X = 0, 1.5, 2.5, 3.5, and 5 mol%) were prepared by conventional quenching technique. These glass samples were converted to glass ceramics by the two-stage heat treatment schedule. Formation of ferroelectric lead titanate phase in the glass ceramics was confirmed from the XRD. The density, CTE, and dielectric constant of the glass and glass-ceramic samples were measured. The glass-ceramic sample containing 2.5 mol% SiO2 exhibited the highest dielectric constant. The SEMs of glass-ceramic samples were studied. The P-E hysteresis loop studies also revealed the highest remnant polarization for this sample, which has a potential for being developed for practical applications.