کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1787537 1023445 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the influence of Joule heating induced nanocrystallization on structural and magnetic properties of Co64Fe21B15 alloy
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
On the influence of Joule heating induced nanocrystallization on structural and magnetic properties of Co64Fe21B15 alloy
چکیده انگلیسی

Structural and magnetic properties of Joule heated Co64Fe21B15 alloy have been studied. Crystallization of the specimens starts after Joule heating with 1.6 A current, leading to the formation of nanocrystalline Co80Fe20 phase with grain diameter ranging between 19 and 25 nm. Crystallization of the specimens is found to detoriate the soft magnetic properties. Observed decrease of the hyperfine field of the amorphous component upon Joule heating suggests the increase of the boron near-neighbours to iron and the changes in the hyperfine field of the crystalline component are attributed to the changes in the environment around Fe atom in the specimen. The coercivity is found to obey a domain wall pinning process instead of random anisotropy, as expected in soft magnetic nanocrystalline magnetic materials.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Applied Physics - Volume 11, Issue 4, July 2011, Pages 981–985
نویسندگان
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