The Effect of Remelting on the Physical Properties of Borotellurite Glass Doped with Manganese

International Journal of Molecular Sciences

Syed Putra Hashim Syed Hashim²  Haji Abdul Aziz Sidek¹  Mohamed Kamari Halimah²  Khamirul Amin Matori²  Wan Mohamad Daud Wan Yusof² 

[1] Glass and Ultrasonics Studies Centre (GUSC), Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia;

关键词: borotellurite glass;    density;    bridging oxygen;    FTIR spectra;   

DOI  :  10.3390/ijms14011022

来源: mdpi

【 摘 要 】

A systematic set of borotellurite glasses doped with manganese (1–x) [(B₂O₃)_0.3(TeO₂)_0.7]-xMnO, with x = 0.1, 0.2, 0.3 and 0.4 mol%, were successfully synthesized by using a conventional melt and quench-casting technique. In this study, the remelting effect of the glass samples on their microstructure was investigated through density measurement and FT-IR spectra and evaluated by XRD techniques. Initial experimental results from XRD evaluation show that there are two distinct phases of glassy and crystallite microstructure due to the existence of peaks in the sample. The different physical behaviors of the studied glasses were closely related to the concentration of manganese in each phase. FTIR spectra revealed that the addition of manganese oxide contributes the transformation of TeO₄ trigonal bipyramids with bridging oxygen (BO) to TeO₃ trigonal pyramids with non-bridging oxygen (NBO).

【 授权许可】

CC BY   
© 2013 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.