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Effect of Zinc on the Physical Properties of Tellurite Glass

Shaharuddin, Rosmawati and Abd. Aziz, Sidek and Talib, Zainal Abidin and Hussein, Mohd Zobir (2008) Effect of Zinc on the Physical Properties of Tellurite Glass. Journal of Applied Sciences, 8 (10). pp. 1956-1961. ISSN 1812-5654

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A series of binary tellurite glass samples containing zinc oxide, ranging from 10 to 40 mol%, were successfully prepared. Longitudinal and shear ultrasonic wave velocities were measured at room temperature and were taken at 5 MHz. Elastic properties, Poison`s ratio, microhardness, Debye temperature and fractal bond connectivity have been calculated from the measured density and ultrasonic wave velocities. Results from the studies show that the densities of all glasses increase from 5098 to 5283 kg m-3, molar volumes decrease from 29.773 to 24.287 m3 mol-1 and the transition temperature, Tg decreases from 381.17 to 360.52°C with the substitution of TeO2 by ZnO content. Both the longitudinal and shear wave velocities decrease with increase of ZnO composition. The experimental results indicated that the elastic constants depend upon the composition of the glasses. The role of the ZnO inside the glass network is also discussed. Quantitative analysis based on bond compression model has been carried out, in order to obtain more information about the structure of these glasses.

Item Type:Article
Keyword:Tellurite glasses, ultrasonic velocity, elastic properties, cross-link density, bond compression model
Faculty or Institute:Faculty of Science
Publisher:Asian Network for Scientific Information
DOI Number:10.3923/jas.2008.1956.1961
ID Code:6015
Deposited By: Najwani Amir Sariffudin
Deposited On:07 May 2010 14:59
Last Modified:22 Jul 2010 22:03

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