Journal
INTERMETALLICS
Volume 96, Issue -, Pages 79-83Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.intermet.2018.02.015
Keywords
High-entropy alloy; Magnetocaloric effect; Metallic glasses; Microwire
Categories
Funding
- National Natural Science Foundation of China [51771217, 51771216]
- Zhejiang Provincial Natural Science Foundation of China [LY17E010005, LR18E010002]
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Microwires of Gd20Ho20Er20Al20TM20 (TM = Fe, Co and Ni) high-entropy metallic glasses (HE-MGs) are successfully fabricated by a melt-extraction method, which exhibit good magnetocaloric properties. The maximum magnetic entropy change and refrigerant capacity under 5 T of the Gd20Ho20Er20Al20Co20 HE-MG microwire can reach 10.2 J kg(-1) K-1 and 625 J kg(-1), respectively. In addition, the magnetocaloric properties of the HE-MG microwires can be widely tuned by doping different transition metals. The HE-MG microwires combining high heat-exchange efficiency and excellent mechanical properties are attractive candidates for applications in magnetic refrigeration.
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