Preparation of TiO2–Na2O glass by sol–gel method and structural characterization |
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| Affiliation: | 1. Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan;2. Applied Material Technical Support Center, Industrial Research Institute of Niigata Prefecture, Mitsuke, Niigata 954-0052, Japan;3. Department of Chemistry, Niigata University, Niigata 950-2181, Japan;4. Research Reactor Institute, Kyoto University, Kumatori-cho, Sennan-gun, Osaka 590-0494, Japan |
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| Abstract: | The applicability of sol–gel process in glass formation of binary system, (100 − x)TiO2–xNa2O (x = 10, 20, 30), was investigated and the glasses were prepared successfully by the sol–gel process for the first time. The process of glass formation was checked by using X-ray diffraction measurement and DTA–TG analysis. In the baking step, a DTA peak related to the crystallization of gel was found. The short-range structure of glassified samples was studied by neutron scattering measurement. It is found from the results of neutron scattering measurement that the coordination number of O atom around Ti atom is about 4, and the O atoms around Ti atom form a planer square rather than a regular tetrahedron. |
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