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
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The frequency (100 Hz-1 MHz) and temperature (450-575 °C) dependence of impedance spectroscopy of (1âx)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 Zâ³ 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 1â4, 1 August 2005, Pages 76-81
Journal: Physica B: Condensed Matter - Volume 365, Issues 1â4, 1 August 2005, Pages 76-81
نویسندگان
Yue-Ming Li, Wen Chen, Jing Zhou, Qing Xu, Xing-Yong Gu, Run-Hua Liao,