کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7887121 1509788 2018 29 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structural, electrical and magnetic behavior of mechanothermally synthesized multidoped bismuth ferrite
ترجمه فارسی عنوان
رفتار سازه ای، الکتریکی و مغناطیسی فریت بیسموت چند تایی سنتز شده به دست می آید
کلمات کلیدی
پراش اشعه ایکس، تجزیه و تحلیل امپدانس پیچیده. اندازه گیری مغناطیسی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی
Some lead-free compounds of a general formula (Bi1-xSrx)(Fe1-xMnx)O3 (x = 0-0.15 with the interval of 0.05) were prepared by a mechanical alloying followed by sintering process. Structural, electrical and magnetic characteristics of multi-doped elements (Sr-Mn) in bismuth ferrite have been examined at different field frequencies and temperatures. X-ray diffraction studies suggest the rhombohedral phase for x ≤ 0.1 and the orthorhombic phase for x = 0.15. Study of frequency-dependent dielectric properties showed the enhancing trend of dielectric constant with increasing co-doping concentration. Detailed analysis of impedance data at different frequencies and temperature estimated the contribution of grains and grain boundaries in the capacitive and resistive properties of the studied samples. The study of magnetic properties exhibits the weak ferromagnetism in co-substituted samples with maximum saturation magnetization (Ms = 0.121 emu/gm) for higher concentration of doping (x = 0.15). The magneto-electric coefficient (αME), measured with the varying DC magnetizing field under fixed AC magnetic field, is found to be 15.368 Oe.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 10, July 2018, Pages 11543-11553
نویسندگان
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