کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1571678 1000649 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structural and electrical characteristics of Sr(Fe2/3W1/3)O3 ceramics
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Structural and electrical characteristics of Sr(Fe2/3W1/3)O3 ceramics
چکیده انگلیسی

The polycrystalline samples of Sr(Fe2/3W1/3)O3 (SFW) were prepared by a high-energy ball-milling followed by solid-state reaction technique. The X-ray structural analysis showed the formation of single-phase compound in the tetragonal system, which is a distorted structure of an ideal cubic perovskite. The temperature–frequency dependence of dielectric constant and loss tangent exhibited relaxation behavior of the compound. The studies of impedance parameters (Z′, Z″) as a function of temperature and frequency have confirmed the contribution of bulk resistance of SFW. The small value of activation energy of the compound (∼ 0.35 eV) can be explained by mixed ionic–polaronic conductivity mechanism.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Characterization - Volume 61, Issue 9, September 2010, Pages 845–850
نویسندگان
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