Dielectric Studies on CuO-Na<sub>2</sub>O-B<sub>2</sub>O<sub>3</sub>Glasses
Dielectric Studies on CuO-Na<sub>2</sub>O-B<sub>2</sub>O<sub>3</sub>Glasses作者机构：Physics Department Faculty of Science Mansoura University Mansoura Egypt Physics Department Faculty of Science Monofia University Egypt
出 版 物：《New Journal of Glass and Ceramics》 (玻璃与陶瓷期刊（英文）)
年 卷 期：2020年第10卷第4期
页 面：45-56页
学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术]
主 题：Electrical Measurement Cuo Borate Glasses Impedance Spectroscopy
摘 要：This work is aimed to shed light on the dielectric behavior of CuO containing glasses, since no publications concerning this issue have been presented before. Different glasses in the binary Na2O-B2O3 system were prepared by melt annealing technique. XRD spectra have shown that the amorphous structure is dominant in all glasses containing mixed concentrations from CuO and Na2O. The crystalline phases appeared only in glass free from Na2O. The dielectric spectroscopy is applied to shed some light on the conduction mechanisms in terms of changing both the dielectric constant and the electrical modulus of the investigated glasses. The ac conductivity increases with increasing frequency and decreases with increasing CuO concentration. Both the dielectric constant and dissipation loss is decreased with increasing frequency. Correlated barrier hopping (CBH) is considered an appropriate conduction mechanism results from the increase of frequency.
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