Solid State Science and Technology, Vol. 15, No 1 (2007) 116-121

ISSN 0128-7389

Corresponding Author:




Sulhadi, M. R. Sahar, M. S. Rohani and R. Arifin

Advanced Optical Material Research Group, Faculty of Science,

Universiti Teknologi Malaysia, 81310 Skudai, Johor DT-Malaysia



Series of (80-x)TeO2-18ZnO-1MgO-1Li2O-xEr2O3 glass system (0.5mol%x2.5mol%) has successfully been made by melt quenching technique. The thermal stability and structure of glass has been investigated by means of TG/DTA and FTIR spectroscopy. The thermal parameters, such as the glass transition temperature (Tg), crystallization temperature (Tc) and thermal stability (Tc-Tg) were determined. It is found that this system provides a wide and stable glass formation in which the glass stability around 97oC-117oC may be obtained. The broad absorption peaks were

observed around 657cm-1-671cm-1 and 755cm-1-758cm-1, which correspond to the stretching vibration mode of TeO4 tbp and TeO3 tp, respectively. The absorption peaks around 1600cm-1 and 3400cm-1 are assigned to a stretching vibration of the hydroxyl group participating in the strong metal and hydrogen bonding respectively.



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