کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1813699 | 1025639 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cu effects on coercivity and microstructural features in nanocrystalline Nd-Fe-Co-B annealed melt-spun ribbons
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The effects of Cu addition on the microstructure and coercivity (iHc) of melt-spun annealed ribbons of Nd13.5Fe(74.9âz)Co5.5CuzB6 (z=0.0-0.54) alloys have been investigated. It was observed that Cu segregates to a nano-scale Nd-rich intergranular phase, causing effective change in the chemistry and morphology of grain boundary phase. As a result, the coercivity, at first decreases (up to 0.18Â at% Cu), then gradually improved with the increase of Cu concentration. The effects of the microalloyed element on the coercivity are discussed based on the magnetic and microstructural changes measured and observed by a vibrating sample magnetometer (VSM), a transmission electron microscope (TEM), and a three-dimensional atom probe (3DAP).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 398, Issue 1, 1 August 2007, Pages 51-54
Journal: Physica B: Condensed Matter - Volume 398, Issue 1, 1 August 2007, Pages 51-54
نویسندگان
R. Gholamipour, A. Beitollahi, V.K. Marghusian, T. Ohkubo,