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Dielectric properties of ternary (ZnO)30(MgO)x(P2o5)70-x (x =5, 8, 13) glasses


Khor, Shing Fhan and Talib, Zainal Abidin and Wan Yusoff, Wan Mohamad Daud and Sidek, Abd Aziz and Mat Yunus, Wan Mahmood and Shaari, Abdul Halim (2009) Dielectric properties of ternary (ZnO)30(MgO)x(P2o5)70-x (x =5, 8, 13) glasses. Malaysian Journal of Fundamental and Applied Sciences, 5 (1). pp. 35-39. ISSN 1823-626X


(ZnO)30(MgO)x(P2O5)70-x glasses of the composition x = 5, 8 and 13 mol % have been prepared by melt quenching technique. The dielectric permittivity (ε′) and loss factor (ε″) were measured in the frequency range from 0.01 Hz to 1 MHz and in the temperature range 303 to 573 . From the results there are evidence of dipolar relaxation occurring between 103 – 106 Hz while at low frequency the spectrum is dominated by dc conduction which manifested by the 1/ω slope of loss factor plot. Value of the relaxing frequency (ωp) plotted against 1/T shows one electrical transportation mechanism. The empirical data was sufficiently fitted by using Harviliak-Negami equation.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Publisher: Ibnu Sina Institute for Fundamental Science Studies, Universiti Teknologi Malaysia
Keywords: Dielectric relaxation; Complex permittivity; Phosphate glasses
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 18 Jun 2015 06:56
Last Modified: 28 Sep 2015 01:18
URI: http://psasir.upm.edu.my/id/eprint/14054
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