کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8000792 1516278 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study of diffuse phase transition in Pb(Cd1/3Nb2/3)O3 compound
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Study of diffuse phase transition in Pb(Cd1/3Nb2/3)O3 compound
چکیده انگلیسی
Present paper contains study of phase evolution, dielectric properties and complex impedance spectroscopy of lead based ferroelectric ceramic Pb(Cd1/3Nb2/3)O3 synthesized by double step solid state reaction route. X-ray diffraction pattern shows that the material has single cubic phase. Temperature dependence of relative dielectric constant exhibits diffuse phase transition in the present compound. Frequency dependence of the real (Z′) and imaginary (Z′′) parts of the electric impedance spectroscopy reveal contribution due to grain (bulk) resistance in a wide temperature range and indicate that the relaxation mechanism is less temperature dependent and strongly influenced by oxygen vacancies and charge carrier. The conductivity spectrum has been observed to follow the Jonscher's universal power law. The existence of week ferroelectricity is confirmed from hysteresis loop study.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 615, 5 December 2014, Pages 40-46
نویسندگان
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