期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 708, 期 -, 页码 678-684出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.03.071
关键词
Melt-extraction; Microwire; Magnetocaloric effect; Magnetic refrigeration
资金
- National Natural Science Foundation of China (NSFC) [51671071, 51371067]
- U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-FG02-07ER46438]
We report enhancements of both Curie temperature and magnetic refrigerant capacity in Gd-50(Co69.25Fe4.25Si13B13.5)(50) microwires, which were fabricated by the melt-extraction method. For a field change of 5 T, the maximum magnetic entropy change (Delta S-M(max)), the refrigerant capacity (RC) and relative cooling power (RCP) reached high values of 6.56 J kg(-1) K-1, 625 J kg(-1) and 826 J kg(-1), respectively. While the RC is similar to those of our previously reported GdAlCo microwires, a much broader working temperature range of similar to 126 K and a higher Curie temperature of 170 K make the Gd-50(Co69.25Fe4.25Si13B13.5)(50) microwires more attractive for active magnetic refrigeration. (C) 2017 Elsevier B.V. All rights reserved.
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