کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1803044 | 1024609 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of Ti and C additions on structural and magnetic properties of (Pr,Nd)-Fe-B nanocrystalline magnetic materials
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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
Effects of titanium carbide (TiC) addition on structural and magnetic properties of isotropic (Pr,Nd)-Fe-B nanocrystalline magnetic materials have been investigated. In this work, we investigate the effect of TiC addition on a (Pr,Nd)-poor and B-rich composition, as well as on a B-poor and (Nd,Pr)-rich composition. Rapidly solidified (Pr,Nd)-Fe-B alloys were prepared by melt-spinning. The compositions studied were (Pr1âxNdx)4Fe78B18 (x=0, 0.5, and 1) with addition of 3 at% TiC. Unlike the (PrxNd1âx)9.5Fe84.5B6 materials that present excellent values for coercive field and energy product, the (Pr,Nd)-poor and B-rich composition alloys with TiC addition present lower values. Rietveld analysis of X-ray data and Mössbauer spectroscopy revealed that samples are predominantly composed of Fe3B and α-Fe. For the RE-rich compositions (PrxNd1âx)9.5Fe84.5B6 (x=0.1, 0.25, 0.5, 0.75, and 1) with the addition of 3 at% TiC, the highest coercive field and energy product (8.4 kOe and 14.4 MGOe, respectively) were obtained for the composition Pr9.5Fe84.5B6.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 320, Issue 14, July 2008, Pages e65-e68
Journal: Journal of Magnetism and Magnetic Materials - Volume 320, Issue 14, July 2008, Pages e65-e68
نویسندگان
R.K. Murakami, H.R. Rechenberg, A.C. Neiva, F.P. Missell, V. Villas-Boas,