Sazali, Ezza Syuhada and Sahar, Md. Rahim and Mat Jan, Nur Amanina and Hamzah, Khaidzir and Arifin, Ramli (2012) Study of crystallization kinetics of Teo2-Na2O-Mgo glass using Ozawa method: influence of europium. In: Solid State Science and Technology XXVI. Trans Tech Publications, Zurich, Switzerland, pp. 116-120. ISBN 978-303785402-0
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Official URL: http://dx.doi.org/10.4028/www.scientific.net/AMR.5...
Abstract
The study of the crystallization kinetics of rare-earth doped glass stimulated much interest especially for crystallization process. In this work transparent Eu2O3 doped glasses with composition TeO2 - Na2O - MgO were prepared using conventional melt-quenching technique. The amorphous nature of glass was confirmed using X-ray diffraction method. The influence of Eu3+ content on the crystallization kinetics of the glass such as activation energy (E-a) was thoroughly evaluated under non-isothermal conditions using DTA. The crystallization kinetic at different heating rate from 5 degrees C min(-1) to 25 degrees C min(-1) at different crystallization temperature (T-p) were examined and verified using Ozawa method. The result showed that the activation energy (E-a) was decreased with the increasing of the dopant concentration from 319.8 eV to 93.5 eV.
| Item Type: | Book Section |
|---|---|
| Additional Information: | Indexed by Web of Knowledge |
| Uncontrolled Keywords: | crystallization kinetics, avrami exponent, Ozawa method |
| Subjects: | Q Science |
| Divisions: | Science |
| ID Code: | 36034 |
| Deposited By: | Fazli Masari |
| Deposited On: | 03 Dec 2013 08:32 |
| Last Modified: | 04 Feb 2017 06:13 |
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