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The Effect of Remelting on the Physical Properties of Borotellurite Glass Doped with Manganese
Glass and Ultrasonics Studies Centre (GUSC), Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
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Received: 7 October 2012; in revised form: 26 December 2012 / Accepted: 29 December 2012 / Published: 7 January 2013
Abstract: 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).
Keywords: borotellurite glass; density; bridging oxygen; FTIR spectra
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Hashim, S.P.H.S.; Sidek, H.A.A.; Halimah, M.K.; Matori, K.A.; Yusof, W.M.D.W.; Zaid, M.H.M. The Effect of Remelting on the Physical Properties of Borotellurite Glass Doped with Manganese. Int. J. Mol. Sci. 2013, 14, 1022-1030.
Hashim SPHS, Sidek HAA, Halimah MK, Matori KA, Yusof WMDW, Zaid MHM. The Effect of Remelting on the Physical Properties of Borotellurite Glass Doped with Manganese. International Journal of Molecular Sciences. 2013; 14(1):1022-1030.
Hashim, Syed P.H.S.; Sidek, Haji A.A.; Halimah, Mohamed K.; Matori, Khamirul A.; Yusof, Wan M.D.W.; Zaid, Mohd H.M. 2013. "The Effect of Remelting on the Physical Properties of Borotellurite Glass Doped with Manganese." Int. J. Mol. Sci. 14, no. 1: 1022-1030.