Effect of lithium addition on thermal and optical properties of zinc-tellurite glass

被引：53
|
作者：
Mohamed, E. A. [1 ]
Ahmad, F. [1 ]
Aly, K. A. [2 ,3 ]
机构：
[1] Al Azhar Univ, Girls Branch, Fac Sci, Dept Phys, Cairo, Egypt
[2] Al Azhar Univ, Fac Sci, Dept Phys, Assiut, Egypt
[3] King Abdulaziz Univ, Fac Sci & Arts, Dept Phys, Khulais, Saudi Arabia
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2012年 / 538卷
关键词：
Tellurite glass; Activation energy; Thermal stability; Optical properties; TRANSITION TEMPERATURE; CRYSTALLIZATION KINETICS; FORMING ABILITY; CONDUCTIVITY; SPECTROSCOPY; ABSORPTION; STABILITY; SYSTEM; WO3;
D O I：
10.1016/j.jallcom.2012.05.044
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Glasses with the composition, (80-x)TeO2-xLi(2)O-20ZnO with x = 0, 5 and 10 (in mol%), were prepared by conventional melt quenching method. Properties such as density, molar volume, glass transition activation energy, crystallization activation energy and thermal stability as a function of Li2O content are reported. FTIR results revealed that the glassy matrix is composed of TeO3, TeO3+1, TeO4 units and ZnO4 structural units. The optical transmission studies revealed that the lambda(cutoff) wavelength and optical band gap energy (E-opt) decreases with the addition and increase of Li2O content while Urbach energy (E-0) and refractive index increases. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：230 / 236
页数：7
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