کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1814726 | 1025653 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and magnetic properties of melt-spun high Pr-content magnetostrictive alloys
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Synthesis and magnetic properties of melt-spun high Pr-content magnetostrictive alloys Synthesis and magnetic properties of melt-spun high Pr-content magnetostrictive alloys](/preview/png/1814726.png)
چکیده انگلیسی
Pseudobinary high Pr-content Tb1âxPrx(Fe0.4Co0.6)1.93 (0.70â¤xâ¤1.00) magnetostrictive alloys have been fabricated by a melt-spinning method. The effects of the composition, spinning, and annealing processes on the structure, thermal stability, and magnetic properties are investigated. At a wheel speed of vâ¤30 m/s, the as-spun ribbons consist of a mixture of (Tb,Pr)(Fe,Co)2 cubic Laves phase and some non-cubic phases. A single (Tb,Pr)(Fe,Co)2 phase with MgCu2-type structure is formed with the process for the speed of vâ¥35 m/s and subsequent annealing at 500 °C for 30 min. The lattice parameter of the Tb1âxPrx(Fe0.4Co0.6)1.93 Laves phase increases from 0.7354 nm for x=0.70 to 0.7384 nm for x=1.00 and approximately follows the linear Vegard's law. The Curie temperature decreases, while the saturation magnetization increases as increasing Pr content. The Pr-rich alloys possess the relatively lower coercivity and the faster saturation of magnetostriction as compared with the Tb-rich alloys, which can be understood by their lower magnetic anisotropy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 404, Issue 16, 1 August 2009, Pages 2444-2448
Journal: Physica B: Condensed Matter - Volume 404, Issue 16, 1 August 2009, Pages 2444-2448
نویسندگان
J.J. Liu, X.C. Liu, W.S. Zhang, P.Z. Si,