Anomalous dielectric behaviour in melt quenched lithium berate glasses

Authors
Murugan, GS Subbanna, GN Varma, KBR
Citation
Gs. Murugan et al., Anomalous dielectric behaviour in melt quenched lithium berate glasses, FERROELEC L, 26(1-2), 1999, pp. 1-16
Citations number
17
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
FERROELECTRICS LETTERS SECTION
ISSN journal
07315171 → ACNP
Volume
26
Issue
1-2
Year of publication
1999
Pages
1 - 16
Database
ISI
SICI code
0731-5171(1999)26:1-2<1:ADBIMQ>2.0.ZU;2-5
Abstract
Transparent glasses of lithium tetraborate (Li2B4O7) were prepared by a spl at 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 b y differential thermal analysis. Physical properties such as density, diele ctric and ac conductivity have been studied. Glasses of L(i)2B(4)O(7) exhib it a dielectric anomaly close to the crystallization temperature which is a ttributed to the interfacial polarization caused by Li+ ion motion within t he berate network.