کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1487384 1510699 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and optimization of the magnetic properties of aligned strontium ferrite nanowires
ترجمه فارسی عنوان
سنتز و بهینه سازی خواص مغناطیسی نانوسیم های فریت استرانستیم تراز شده
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی


• Dip coating method was used to synthesize strontium ferrite nanowires in template.
• Size of nanowires was controlled via anodization parameters.
• Fe/Sr ratio was optimized in precursor.
• Magnetic properties of nanowires and nanopowders were compared.

High aspect ratio strontium hexaferrite nanowires were fabricated by dip coating in alumina template. Fe/Sr ratio was changed from 10 to 12 in precursor, and the samples were annealed at a range of temperatures 500–900 °C in order to optimize the magnetic properties of strontium ferrite in the form of nanowires. Field emission scanning electron microscope (FESEM) proved the formation of nanowires in the templates, while TEM images revealed a high degree of crystallinity. The ferrites were further characterized by X-ray diffraction (XRD) and energy dispersive X-ray spectrometer (EDS). Magnetic properties of the specimens were studied by a SQUID at 10–300 K. The results showed that the coercivity of packed density nanowires in the template was much less than that of the nanopowders. On the other hand, the coercivity of nanowires at ambient temperature was less than low temperature coercivity.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 76, April 2016, Pages 240–246
نویسندگان
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