alexa Variable-Temperature Measurements of the Dielectric Relaxation Spectroscopy in 0.1 SiO2-0.2 Cao-0.2 Na2O-0.5 P2O5 Bioactive Glass Materials | OMICS International | Abstract
ISSN:2090-5025

Bioceramics Development and Applications
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Research Article

Variable-Temperature Measurements of the Dielectric Relaxation Spectroscopy in 0.1 SiO2-0.2 Cao-0.2 Na2O-0.5 P2O5 Bioactive Glass Materials

Hogga Z1, Merzouk N2 and Hafid MM1*

1Laboratory of Engineering and Environmental studies, Department of Physics, Faculty of sciences, University of Ibn Tofail, 14000 Kenitra, Morocco

2Faculty of Dental Medicine, Rabat, Morocco

Corresponding Author:
Hafid MM
Laboratory of Engineering and Environment
studies Department of Physics, Faculty of sciences
University of Ibn Tofail, 14000 Kenitra, Morocco
Tel: +212537329292
Fax: +212537329290
E-mail: [email protected]

Received date: April 28, 2016; Accepted date: May 17, 2016; Published date: May 23, 2016

Citation: Hogga Z, Merzouk N, Hafid MM (2016) Variable-Temperature Measurements of the Dielectric Relaxation Spectroscopy in 0.1 SiO2-0.2 Cao-0.2 Na2O-0.5 P2O5 Bioactive Glass Materials. Bioceram Dev Appl 6:092. doi:10.4172/2090-5025.1000092

Copyright: © 2016 Hogga Z, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Bioactive glasses with chemical composition 0.1 SiO2-0.2 CaO-0.2 Na2O-0.5 P2O5 have been prepared. The dielectric properties of the samples were measured in the frequency range from 100 Hz to 1 MHz and temperatures range from 100 to 370 K (Tg ≈ 400 K). The obtained data were analysed by the means of dielectric permittivity representation and modelled using the Havriliak–Negami equation. Various relaxation parameters were calculated with accuracy. Furthermore, investigation of the temperature dependence of their relaxation time using the Vogel– Tammam–Fulcher (VTF) model shows the weak interaction between alkali ions constituents and molecular networkformers for temperatures up to the glass transition.

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