کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1621455 | 1005747 | 2009 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigation of structural, electrical and magnetic properties of BiFeO3-Bi(MgTi)O3-PbTiO3 ceramic system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
[(BiFeO3)y(BiMg0.5Ti0.5O3)1ây]x[PbTiO3]1âx (BF-BMT-PT) ceramic powders were prepared by high temperature solid-state reaction method. X-ray diffraction analysis of the powders suggests the formation of a single-phase material with tetragonal structure. SEM images exhibit the uniform distribution of grains. Polarization vs electric field (P-E) hysteresis studies show maximum remanent polarization (Pr â¼Â 14 μC/cm2) for composition X = 0.65. Dielectric studies of the compounds as a function of temperature (from RT to 550 °C) (test frequency 100 kHz) show that the compounds undergo a diffuse phase transition with a transition temperature increasing with decreasing X. The diffusivity parameter of the phase transition for these compounds yielded values between 1.6 and 1.8 indicating significant variation of degree of disordering in the system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 488, Issue 1, 20 November 2009, Pages 459-464
Journal: Journal of Alloys and Compounds - Volume 488, Issue 1, 20 November 2009, Pages 459-464
نویسندگان
Radheshyam Rai, Andrei Kholkin, Shyamakant Pandey, N.K. Singh,