期刊
INTERMETALLICS
卷 65, 期 -, 页码 61-65出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.intermet.2015.06.003
关键词
Functional alloys (magnetic, electrical, biomedical); Magnetic properties
资金
- Alexander von Humboldt (AvH) Foundation
- National Natural Science Foundation of China [11374081]
- Fundamental Research Funds for the Central Universities of China [N140904001]
Magnetic properties and magnetocaloric effect (MCE) in ErFeAl and HoFeAl intermetallic compounds have been studied systematically. Both compounds undergo a second order magnetic phase transition from paramagnetic to ferromagnetic state together with a probable spin reorientation transition at low temperature. A considerable reversible magnetocaloric effect was observed around its own Curie temperatures T-C similar to 55 K and 80 K for ErFeAl and HoFeAl, respectively. For a magnetic field change of 0-7 T, the maximum values of magnetic entropy change (-Delta S-M(max)) are found to be 83 and 9.9 J/kg K for RE = Er and Ho, respectively. The corresponding values of refrigerant capacity (RC) are evaluated to be 384 and 647 J/kg. (C) 2015 Elsevier Ltd. All rights reserved.
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