An anomalous enhancement in the electrical conductivity of Li2O : B2O3 : Al2O3 glasses |
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| Affiliation: | 1. Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, G. Bonchev, str. bld. 11, 1113 Sofia, Bulgaria;2. Guru Nanak Dev University, Amritsar, Punjab, India;1. Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1, Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan;2. Department of Energy and Environment, Research Institute of Electrochemical Energy, National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577, Japan;1. Wireless and Photonic Networks Research Centre, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia;2. Department of Physics, Faculty of Science, Universiti Putra Malaysia UPM, 43400 Serdang, Selangor, Malaysia;3. Departamento de Física, Facultad de Ciencias, Universidad Autónoma del Estado de México, C.P. 50000 Toluca, Mexico;4. Departamento de Física, Universidad Autónoma Metropolitana-Iztapalapa, P.O. Box 55-534, México, D.F. 09340, Mexico;5. CONACYT-Benemérita Universidad Autónoma de Puebla, Postgrado en Física Aplicada, Facultad de Ciencias Físico-Matemáticas, Av. San Claudio y Av. 18 sur, Col. San Manuel Ciudad Universitaria, Puebla, Pue. 72570, Mexico;6. Institute of Optoelectronics and Measuring Systems, Faculty of Electrical Engineering, Czestochowa University of Technology, 17 Armii Krajowej Str., 42-200 Czestochowa, Poland;7. Department of Electrical Engineering, College of Engineering, P.O. Box 800, King Saud University, Riyadh 11421, Saudi Arabia;1. State Key Laboratory for Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China;2. Jiangsu Huaou Glass Co.Ltd, Yancheng 224011, China;3. Yancheng Institute of Technology, Yancheng 224051, China |
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| Abstract: | ![]()
The study of electrical conductivity of 27.5 Li2O : (72.5 − x) B2O3 : x Al2O3 glass samples has been carried out. It has been observed that the conductivity exhibits Arrhenius behavior for all samples up to glass transition temperature Tg. Beyond Tg, an anomalous enhancement followed by decrease in conductivity has been observed. The results have been explained by dividing the temperature range into two regions. In region-I, it has been observed that the conductivity variation exhibits a maximum at 2.5 mol% Al2O3, which has been explained on the basis of Mixed Glass Former Effect (MGFE). An anomalous enhancement in the conductivity observed in region-II has been attributed to the nucleation in the glass. The subsequent decrease in the conductivity has been attributed to the crystallization of the glass samples. |
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