کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1798806 | 1524831 | 2015 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Table-like magnetocaloric effect of Fe88âxNdxCr8B4 composite materials
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Table-like magnetocaloric effect of Fe88âxNdxCr8B4 composite materials Table-like magnetocaloric effect of Fe88âxNdxCr8B4 composite materials](/preview/png/1798806.png)
چکیده انگلیسی
The narrow working temperature range due to the sharp magnetic entropy change |ÎSM| peak and large thermal or magnetic hysteresis restricts the practical application of magnetocaloric materials. In this work, the table-like magnetocaloric effect (MCE) was obtained in the multilayer composite of Fe88âxNdxCr8B4 alloys with various Nd substitutions for Fe (x=5, 8, 10, 12, and 15), which were prepared by arc-melting followed by melt-spinning. The substation of Nd was found to enhance the glass-forming ability. For the alloys with Nd substitution from 5 at% to 15 at%, the Curie temperature (TC) ranged from 322 K to 350 K and the peak value of |ÎSM| remained almost constant, 3.4-3.5 J/(kg K) under an applied field of 0-5 T. The composite with various Nd contents was prepared by stocking the ribbons layer by layer. The |ÎSM| of the composite approached a nearly constant value of â¼3.2 J/(kg K) in a field change of 0-5 T in a wide temperature span over 40 K, resulting in large refrigerant capacity value of >408 J/kg. This |ÎSM| value was much larger than the previous reported Fe-based amorphous composite Fe78âxCexSi4Nb5B12Cu1. This composite can be used as the working material in the Ericsson-cycle magnetic regenerative refrigerator around room temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 390, 15 September 2015, Pages 87-90
Journal: Journal of Magnetism and Magnetic Materials - Volume 390, 15 September 2015, Pages 87-90
نویسندگان
J.W. Lai, Z.G. Zheng, X.C. Zhong, V. Franco, R. Montemayor, Z.W. Liu, D.C. Zeng,