Anomalous Dielectric Behaviour in Melt Quenched Lithium Borate Glasses

Murugan, G Senthil and Subbanna, GN and Varma, KBR (1999) Anomalous Dielectric Behaviour in Melt Quenched Lithium Borate Glasses. In: Ferroelectrics Letters Section, 26 (1-2). pp. 1-16.

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Abstract

Transparent glasses of lithium tetraborate (Li2B4O7) were prepared by a splat quenching technique. X-ray powder diffraction (XRD) and high resolution transmission electron microscopic studies revealed the amorphous nature of the as-quenched samples. The glassy nature of these samples was confirmed by differential thermal analysis. Physical properties such as density, dielectric and ac conductivity have been studied. Glasses of L(i)2B(4)O(7) exhibit a dielectric anomaly close to the crystallization temperature which is attributed to the interfacial polarization caused by Li+ ion motion within the berate network.

Item Type:	Journal Article
Additional Information:	Copyright of this article belongs to Overseas Publishers Association.
Keywords:	Glasses;Electron microscopy;X-ray diffraction;Dielectric properties.
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	27 Feb 2009 09:04
Last Modified:	19 Sep 2010 04:59
URI:	http://eprints.iisc.ernet.in/id/eprint/17960

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