کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7888043 | 1509793 | 2018 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Resistive, capacitive and conducting properties of Bi0.5Na0.5TiO3-BaTiO3 solid solution
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Resistive, capacitive and conducting properties of Bi0.5Na0.5TiO3-BaTiO3 solid solution Resistive, capacitive and conducting properties of Bi0.5Na0.5TiO3-BaTiO3 solid solution](/preview/png/7888043.png)
چکیده انگلیسی
In the present paper, the effect of addition of a small amount (8Â wt%) of barium titanate (BT) on electrical properties of bismuth sodium titanate (BNT) forming a solid solution of a composition (0.92)(Bi0.5Na0.5TiO3)+(0.08)(BaTiO3) (BNT-BT-8) has mainly been reported. The solid solution of BNT-BT-8 was prepared by a cost effective and standard mixed-oxide method. Preliminary structural analysis using X-rays diffraction pattern and data showed the existence of two phases; orthorhombic (major) and tetragonal (minor impurity/secondary) phase. Analysis of scanning electron micrograph and energy dispersive spectrum of the pellet sample reveals the formation of high density with homogeneously distributed grains of varying dimension. The locations, phonon modes statistics, width and intensity of peaks of Raman spectra of BNT-BT-8 was analyzed by Raman spectroscopy and provided some data on molecular structure of the material. The effect of temperature and frequency on some ferroelectric characteristics of the material were studied. The frequency-temperature dependence of electrical characteristical such as impedance of the material was studied by impedance spectroscopy. The electric conductivity follows the Arrhenius equation and provided activation energy at different frequency. The dielectric and impedance spectroscopy suggest the existence of a non-Debye relaxation mechanism in the material.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 5, 1 April 2018, Pages 4719-4726
Journal: Ceramics International - Volume 44, Issue 5, 1 April 2018, Pages 4719-4726
نویسندگان
Sushrisangita Sahoo, Sugato Hajra, Manojit De, R.N.P. Choudhary,