کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9837499 1525278 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Impedance spectroscopy and dielectric properties of Na0.5Bi0.5TiO3-NaNbO3 ceramics
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Impedance spectroscopy and dielectric properties of Na0.5Bi0.5TiO3-NaNbO3 ceramics
چکیده انگلیسی
The frequency (100 Hz-1 MHz) and temperature (450-575 °C) dependence of impedance spectroscopy of (1−x)Na0.5Bi0.5TiO3-xNaNbO3 (x=0, 0.02, 0.04, 0.06, 0.08) system ceramics was investigated by the impedance analyzer. The effect of NaNbO3 concentration on the electrical properties of NBT was analyzed by the impedance data. The frequency explicit plots of Z″ versus frequency at various temperatures show peaks in the higher temperature range (⩾450 °C). The relaxation peaks are affected by the NaNbO3 concentration. The Arrhenius activation energies have been computed from the impedance data. From the investigations of dielectric properties as a function of temperature, it is observed that diffuse phase transition (DPT) is exhibited in these specimens.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 365, Issues 1–4, 1 August 2005, Pages 76-81
نویسندگان
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