CHARACTERISTIC TEMPERATURES AND MICROHARDNESS OF (ZnO)x-(AlF3)y-(TeO2)z TELLURITE GLASS SYSTEMS

被引：0
|
作者：
Sidek, H. A. A. [1 ]
El-Mallawany, R. [2 ]
Rosmawati, S. [3 ]
Yahya, A. K. [4 ]
机构：
[1] Univ Putra Malaysia, Dept Phys, GUSC, Fac Sci, Serdang 43400, Selangor, Malaysia
[2] Menoufia Univ, Fac Sci, Dept Phys, Shebin Al Koam, Egypt
[3] Inst Teacher Educ, Dept Sci, Tekn Campus, Bandar Enstek 71760, Negeri Sembilan, Malaysia
[4] Univ Teknol Mara, Sch Phys & Mat Studies, Shah Alam 40450, Selangor, Malaysia
来源：
CHALCOGENIDE LETTERS | 2016年 / 13卷 / 04期
关键词：
Thermal Properties; Glasses; Tellurite; DENSITY;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Glass transition temperature T-g and softening temperature T-s were measured by the differential thermogravimetric analysis DTA in the temperature range 300-850 K of ternary zinc oxyfluoro tellurite (ZOFT) with the composition (ZnO) x-(AlF3) y-(TeO2) z where (5 <= x <= 35; 5 <= y <= 25; 60 <= z <= 70). Also, thermal expansion coefficient was measured by using a dilatometer over a range of 30 degrees to 210 degrees C. Acoustic Debye temperature theta(D), softening temperatures T-s(calc) and microhardness H(v)of ternary zinc oxyfluoro tellurite (ZOFT) have been calculated by using ultrasonic velocities data. The compositional dependence of these physical quantities were discussed to understand the rigidity and compactness of the glass system studied.
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收藏
页码：169 / 176
页数：8
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