The magnetocaloric effect of Gd-Tb-Dy-Al-M (M = Fe,Co and Ni) high-entropy bulk metallic glasses |
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| Affiliation: | 1. Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China;2. Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China;3. International Institute of Green Materials, Josai International University, Tougane 283-8555, Japan;4. University of Wisconsin–Madison, Department of Materials Science and Engineering, 1509 University Ave., Madison, WI 53706, USA;1. School of Materials Science and Engineering, Dalian University of Technology, Dalian, 116024, China;2. Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan;1. Institute of Magnetic Materials, Hangzhou Dianzi University, Hangzhou, 310012, PR China;2. Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang, 110819, PR China |
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| Abstract: | In this article, we report the formation of the high-entropy Gd20Tb20Dy20Al20M20 (M = Fe, Co and Ni) bulk metallic glasses with good magnetocaloric properties. Compared with most of the rare earth based metallic glasses, these alloys are found to have the comparably large maximum magnetic entropy changes (ΔSM), but much broader widths of the ΔSM peaks, and hence larger refrigerant capacity (RC). This can be attributed to the combination of the spin glass behaviors and the complicated compositions in these alloys. Our work show that the high entropy bulk metallic glasses is a promising candidate material as the magnetic refrigerant. |
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| Keywords: | A. High–entropy alloys A. Metallic glasses B. Thermal properties B. Magnetic properties |
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