10 فروردین 1403
حسين رعنايي

حسین رعنایی

مرتبه علمی: دانشیار
نشانی: دانشکده علوم و فناوری نانو و زیستی - گروه فیزیک
تحصیلات: دکترای تخصصی / فیزیک
تلفن: 07731223310
دانشکده: دانشکده علوم و فناوری نانو و زیستی

مشخصات پژوهش

عنوان Study of synthesis, structural and magnetic properties of nanostructured (Fe67 Ni33)70 Ti10 B20 alloy
نوع پژوهش مقالات در نشریات
کلیدواژه‌ها
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مجله JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
شناسه DOI
پژوهشگران صادق عباسی (نفر اول) ، هادی اسلامی زاده (نفر دوم) ، حسین رعنایی (نفر سوم)

چکیده

Alloyed powders with combination of (Fe67 Ni33)70 Ti10 B20 at different milling times are obtained. Structural, magnetic and thermal characterizations are performed by using X- ray diffraction, scanning electron microscope, energy dispersive X-ray spectroscopy, differential scanning calorimetry, transmission electron microscopy and vibrating sample magnetometer. It is indicated that the crystallite size is sharply decreases in the initial stage of milling process and the microstructure tends to nanocrystalline structure with increasing milling time. A rapid drop in saturation magnetization is observed after 48 h milling time, while coercivity value attains to a lowest value of about 33 Oe. Heat analysis of the milled sample at 120 h shows an endothermic peak. The coercivity of the 120 h annealed sample is increased as compared to the starting powders.