Effect of Na2O on physical, structural and electrical properties of borate glasses

Publication Title

Materials Today: Proceedings

E-ISSN

22147853

Document Type

Conference Proceeding

Abstract

Borate-based glasses have been gained significant interest owing to their utilization in applications like solar energy converters, optical fibers, radiation shielding, solid-state batteries, etc. This work reports xNa2O.(100-x)B2O3; x = 0, 10 & 20 (mol%) glasses prepared via conventional melt-quenching technique. Sodium oxide (Na2O) has been used as a network modifier. The obtained glasses are characterized using X-Ray diffraction (XRD) and Fourier transforms infrared spectroscopy (FTIR). The network structure of prepared samples was found dependent on the sodium content in glass compositions. Variation in the density, molar volume (Vm) and crystalline volume (Vc) of the samples reveal substitution of the sodium atoms. Conductivity in the samples under reference has been studied in the frequency range from 103 Hz to 107 Hz and in the temperature range from 240 °C to 380 °C, by fitting the measured data with theoretical model. The theoretical fitting reveals that the variation in conductivity with frequency for all samples obeys Jonscher's power law.

First Page

3722

Last Page

3725

Publication Date

1-1-2020

DOI

10.1016/j.matpr.2020.12.688

Keywords

Ac conductivity, Borate glass, FTIR, Jonscher's power law, XRD

Department

Department of Electrical Engineering

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