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

Author

Syed Putra Hashim Syed Hashim, Haji Abdul Aziz Sidek, Mohamed Kamari Halimah, Khamirul Amin Matori, Wan Mohamad Daud Wan Yusof, and Mohd Hafiz Mohd Zaid

Subjects
borotellurite glass, density, bridging oxygen, FTIR spectra, Biology (General), QH301-705.5, Chemistry, QD1-999
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).

Published
2013
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2. The Effect of Remelting on the Physical Properties of Borotellurite Glass Doped with Manganese

Author

Wan Mohamad Daud Wan Yusof, Syed Putra Hashim Syed Hashim, Mohd Hafiz Mohd Zaid, Mohamed Kamari Halimah, H. A. A. Sidek, and Khamirul Amin Matori

Subjects
Boron Compounds, Materials science, borotellurite glass, density, bridging oxygen, FTIR spectra, Analytical chemistry, chemistry.chemical_element, Mineralogy, Manganese, Article, Catalysis, Physical Phenomena, Inorganic Chemistry, lcsh:Chemistry, X-Ray Diffraction, Phase (matter), Spectroscopy, Fourier Transform Infrared, Physical and Theoretical Chemistry, Boron, Molecular Biology, lcsh:QH301-705.5, Spectroscopy, Organic Chemistry, Doping, Oxides, General Medicine, Microstructure, Computer Science Applications, Oxygen, Manganese Compounds, chemistry, lcsh:Biology (General), lcsh:QD1-999, X-ray crystallography, Glass, Crystallite, Tellurium
Abstract

A systematic set of borotellurite glasses doped with manganese (1-x) [(B(2)O(3))(0.3)(TeO(2))(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 TeO(4) trigonal bipyramids with bridging oxygen (BO) to TeO(3) trigonal pyramids with non-bridging oxygen (NBO).

Published
2013

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