کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5490330 1524791 2017 21 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of coating on nanocrystalline magnetic properties during high temperature thermal ageing
ترجمه فارسی عنوان
تأثیر پوشش روی خواص مغناطیسی نانوکریستالیک در هنگام پیری گرمایی درجه حرارت بالا
کلمات کلیدی
پیری مغناطیسی، آلیاژهای نانوکریستال، بسته بندی، مشخصه مغناطیسی، انیزوتروپ مغناطیسی، تغییر شکل،
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
چکیده انگلیسی
Since their birth or mergence the late 1980s, the nanocrystalline ultrasoft magnetic materials are taking a great importance in power electronic systems conception. One of the main advantages that make them more attractive nowadays is their ability to be packaged since the reduction of the magnetostrictive constant to almost zero. In aircraft applications, due to the high component compactness and to their location (for example near the jet engine), the operating temperature increases and may reach easily 200 °C and more. Consequently, the magnetic thermal ageing may occur but is, unfortunately, weakly studied. This paper focuses on the influence of the coating (packaging type) on the magnetic nanocrystalline performances during a thermal ageing. This study is based on monitoring the magnetic characteristics of two types of nanocrystalline cores (naked and coated) during a thermal activated ageing (100, 150 and 200 °C). Based on a dedicated monitoring protocol, a large magnetic characterization has been done and analyzed. Elsewhere, X-Ray Diffraction and magnetostriction measurements were carried out to support the study of the anisotropy energies evolution with ageing. This latter is discussed in this paper to explain and give hypothesis about the ageing phenomena.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 430, 15 May 2017, Pages 94-102
نویسندگان
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