期刊
INTERMETALLICS
卷 58, 期 -, 页码 31-35出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.intermet.2014.11.004
关键词
High-entropy alloys; Metallic glasses; Thermal properties; Magnetic properties
资金
- National Natural Science Foundation of China [51301188]
- China Postdoctoral Science Foundation [2013M541804]
- Ningbo Municipal Nature Science Foundation [2014A610165]
- Grants-in-Aid for Scientific Research [26630299] Funding Source: KAKEN
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 (Delta S-M), but much broader widths of the Delta S-M 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. (C) 2014 Elsevier Ltd. All rights reserved.
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