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Synthesis and elastic behaviour of borate glass doped with high tellurite content

Abdul Aziz, Sidek and Muhamad Kamari, Halimah and Mohd Nordin, Mohd Noor Faizal and Wan Yusof, Wan Mohamad Daud and Abdul Wahab, Zaidan and Talib, Zainal Abidin and Shaari, Abdul Halim (2006) Synthesis and elastic behaviour of borate glass doped with high tellurite content. Journal of Applied Sciences, 6 (2). pp. 274-279. ISSN 1812-5654

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A systematic series of quality binary glass system of (x)TeO2)-(1-x)B2O3 with x = 60 to 80 (wt. %) were successfully synthesized by the rapid quenching method. The densities of each glass samples were determined using Archimedes method with acetone as a floatation medium. The molar volume have been estimated and analyzed for borate glasses doped with tellurite. Ultrasonics methods have been used to study the elastic properties of TeO2B2O3 glasses where the sound wave velocities have been measured in each glass samples at a frequency of 15 MHz and at room temperature. The velocities, both longitudinal and transverse, increase linearly with increasing of TeO2 content in a borate glass network. Their elastic moduli such as longitudinal, Young's, bulk and shear modulus have been calculated as a function of TeO2 concentration. Poisson's ratio and Debye temperature were also found to increase nonlinearly with TeO2 concentration. The glass transition temperature were determined by the differential thermogravimetric analysis at heating rate of 20 K min-1. However the glass transition temperature (Tg) slowly decrease as more tellurite is added into the borate glass network. © 2006 Asian Network for Scientific Information.

Item Type:Article
Keyword:Borate; Elastic properties; Glass; Telurrite; Thermal behaviour
Subject:Glass - Thermal properties
Faculty or Institute:Faculty of Science
Publisher:Science Alert
DOI Number:10.3923/jas.2006.274.279
ID Code:18319
Deposited By: Azwana Abdul Rahman
Deposited On:26 Oct 2011 12:39
Last Modified:09 Dec 2015 10:43

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