کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9783140 | 1511869 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dielectric studies on CdI2 doped Ag2O-V2O5-B2O3 system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Dielectric studies of the quaternary glass system, CdI2-Ag2O-V2O5-B2O3, are reported in the frequency range 100Â Hz-10Â MHz and the temperature range from room temperature to glass transition temperature. The transport number of the Ag+ ion determined by emf method is 0.98. Conductivity as a function of composition and frequency is discussed. Dielectric studies have been observed as a function of frequency, temperature and composition and explained on the Stevel's model for dielectric relaxation in glasses. The variation of dielectric constant and conductivity with the frequency was explained by correlating the microscopic nature of the ionic conduction process in the glassy system. The activation energy obtained from dielectric relaxation time is comparable with the conductivity suggests the motion of the mobile ion charge carriers are responsible for conductivity and relaxation effect.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 91, Issues 2â3, 15 June 2005, Pages 551-557
Journal: Materials Chemistry and Physics - Volume 91, Issues 2â3, 15 June 2005, Pages 551-557
نویسندگان
K.P. Padmasree, D.K. Kanchan,