کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8152592 | 1524757 | 2018 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced formation of 2:14:1 phase in La-based rare earth-iron-boron permanent magnetic alloys by Nd substitution
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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
Aiming at promoting the formation of hard magnetic 2:14:1 phase in La-Fe-B alloys, the effects of Nd substitution on the melt-spun nanocrystalline (La1-xNdx)yFe94-yB6 alloys (xâ¯=â¯0-0.5; yâ¯=â¯12-16) have been investigated. No hard magnetic phase was formed in the (La1-xNdx)16Fe78B6 alloys with xâ¯<â¯0.2. A soft magnetic phase (La,Nd)2Fe23B3 with Curie temperature of 649â¯K was observed in the xâ¯=â¯0.2 alloy and it disappeared as x increased to 0.3. 30% and above Nd substitution can dramatically enhance the formation of 2:14:1 phase and the magnetic properties of La-based permanent magnets. Three different alloy systems (yâ¯=â¯16, 14 and 12) show similar behavior of magnetic properties dependences on Nd substitution. (La0.7Nd0.3)16Fe78B6 alloy with mean grain size 10-20â¯nm exhibits high remanent magnetization, maximum energy product and intrinsic coercivity up to 0.71â¯T, 10.0â¯MGOe and 562â¯kA/m, respectively, indicating it is possible to achieve excellent magnetic properties in La-based rare earth permanent magnets. The present work provides a good understanding on the fundamental magnetism of La-based magnets and the potential to develop low cost rare earth permanent magnets.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 464, 15 October 2018, Pages 31-35
Journal: Journal of Magnetism and Magnetic Materials - Volume 464, 15 October 2018, Pages 31-35
نویسندگان
X.F. Liao, L.Z. Zhao, J.S. Zhang, X.C. Zhong, D.L. Jiao, Z.W. Liu,