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Glass transformation temperature and stability of tellurite glasses

Published online by Cambridge University Press:  31 January 2011

Raouf El-Mallawany
Raouf El-Mallawany
Affiliation:
Physics Department, Faculty of Science, Menofia University, Egypt
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Abstract

The glass transformation (Tg) and onset crystallization temperatures (Tx) of (100 – x) TeO2–(x)V2O5, (x = 10, 35, and 50 mol%) glasses were measured in the temperature range 300–800 K by differential scanning calorimetry at different heating rates. From the variation of the heating rate, the glass transition activation energy was calculated by different methods. The glass stabilization range S = Tx – Tg was calculated for the whole glass series. Quantitative analysis of the glass transformation temperature was carried out using the calculated number of bonds per unit volume and oxygen packing density.

Type
Articles
Information
Journal of Materials Research , Volume 18 , Issue 2 , February 2003 , pp. 402 - 406
Copyright
Copyright © Materials Research Society 2003

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References

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