کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1797968 1524807 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Morphology and magnetic behavior of cobalt rich amorphous/nanocrystalline (Co–Ni)70Ti10B20 alloyed powders
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Morphology and magnetic behavior of cobalt rich amorphous/nanocrystalline (Co–Ni)70Ti10B20 alloyed powders
چکیده انگلیسی


• The effect of milling time on Co49Ni21Ti10B20 composition was investigated.
• The coexistence between nanocrystalline and amorphous phases was observed.
• The magnetic coercivity reached to a low value (≈39 Oe).
• The heat treatment revealed a drastic increment in coercivity value.

The effect of milling time on microstructural and magnetic behavior of mechanically alloyed Co49Ni21Ti10B20 is investigated by using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, differential scanning calorimetry and vibrating sample magnetometer. It is shown, with increasing milling time, the crystallite size decreases and finally reaches to a low value after 190 h of milling time. The increase in microstrain is also observed during the milling process. The results indicate the coexistence between amorphous and nanocrystalline phases after 190 h of milling time. Moreover, the lowest magnetic coercivity of about 39 Oe at the final milling stage is observed. The results of annealed sample reveal structural ordering of constituent elements.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 414, 15 September 2016, Pages 90–96
نویسندگان
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