xB₂O₃ - yBi₂O₃ - zPbO - 5SiO₂ 계 유리의 전기적인 특성

다국어 초록 (Multilingual Abstract)

The temperature dependence of dielectric constant and electrical conductivity for the BBPS glasses system was studied over a temperature range between 30℃ and 500℃ and at a frequency ranged from 10³ Hz to 10^7 Hz. The dielectric constant ε at room temperature of xB₂O₃-YBi₂O₃-zPbO-5SiO₂ glasses was measured to be 15 at 10^5 Hz for all samples and found to be almost frequency independent. At the relatively low temperature range($lt;70℃), the dielectric constant was almost temperature independent and above that it increased with increasing temperature. the rate of increase being different at different frequencies. This behavior could be explained on the basis of the presence of molecular dipoles. The dielectric constant was found to depend on the composition as well as the crystalline phases formed in the glass matrix.