Study of Crystallization Kinetics of TeO2-Na2O-MgO Glass Using Ozawa Method: Influence of Europium

Hamzah, Khaidzir; Sahar, M. Rahim; Arifin, Ramli; Mat Jan, Nur Amanina; Sazali, Ezza Syuhada

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Optical Absorption of Er³⁺/Nd³⁺ Co-Doped Tellurite Glass, p.96
Synthesis and Characterization of Electrical Properties of Bismuth Titanate, p.101
Structural Study of Lithium Strontium Borophosphate Crystal Using X-Ray Diffraction and Infrared Spectroscopy, p.106
Luminescence Properties of Magnesium Phosphate Glass Doped Samarium, p.111
Study of Crystallization Kinetics of TeO₂-Na₂O-MgO Glass Using Ozawa Method: Influence of Europium, p.116
Luminescence Spectra of TeO₂-PbO-Li₂O Doped Nd₂O₃ Glass, p.121
Significant Influences of Selenium on the Electrical Properties of Bi₂Te₃ Compounds Synthesized Using Solid-State Microwave Irradiation, p.126
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Home > Advanced Materials Research > Solid State Science and Technology XXVI > Study of Crystallization Kinetics of...

Paper Title:

Study of Crystallization Kinetics of TeO₂-Na₂O-MgO Glass Using Ozawa Method: Influence of Europium

Periodical	Advanced Materials Research (Volume 501)
Main Theme	Solid State Science and Technology XXVI
Edited by	R. Abd-Shukor, R. Awang, M. Deraman, M. M. Kamisah & R. Shamsudin
Pages	116-120
DOI	10.4028/www.scientific.net/AMR.501.116
Citation	Ezza Syuhada Sazali et al., 2012, Advanced Materials Research, 501, 116
Online since	April, 2012
Authors	Ezza Syuhada Sazali, M. Rahim Sahar, Nur Amanina Mat Jan, Khaidzir Hamzah, Ramli Arifin
Keywords	Avrami Exponent, Crystallization Kinetics, Ozawa Method
Price	US$ 28,-

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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 (Ea) was thoroughly evaluated under non-isothermal conditions using DTA. The crystallization kinetic at different heating rate from 5 °C min-1 to 25 °C min-1 at different crystallization temperature (Tp) were examined and verified using Ozawa method. The result showed that the activation energy (Ea) was decreased with the increasing of the dopant concentration from 319.8 eV to 93.5 eV.