Enhancement of rotating magnetocaloric effect by Fe substitution in NdCo5-xFex alloys

doi:10.1016/j.intermet.2019.106676

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	Enhancement of rotating magnetocaloric effect by Fe substitution in NdCo5-xFex alloys
	Wang, Kun ; Zhang, Mingxiao ; Ouyang, Yi ; Liu, Jian ; Zhang, Hu
刊名	INTERMETALLICS
	2020
卷号	118
关键词	MAGNETIC-PROPERTIES SPIN-REORIENTATION REFRIGERATION
DOI	10.1016/j.intermet.2019.106676
英文摘要	The effect of Fe substitution for Co on microstructure, phase constitution, and magnetocaloric properties was investigated in NdCo5-xFex (x = 0.2-1.0) alloys. The annealed NdCo5-xFex Fex alloys are almost composed of the Nd (Co,Fe)(5) matrix with a dispersed Nd-2(Co,Fe)(7) phase for x < 0.6, and show entirely different microstructure of the Nd(Co,Fe)(5) matrix surrounded by Nd-2(Co,Fe)(7), Nd(Co,Fe)(3), and Nd(Co,Fe)(2) phases for x> 0.8. With increasing Fe content x from 0.2 to 1.0, two spin-reorientation transition temperatures are elevated from 262 to 310 K and 286 to 327 K, respectively. These field-oriented NdCo5,Fex alloys exhibit good rotating magnetocaloric properties, e.g., entropy changes of 2.25-3.66 J/kg K and refrigerant capacity of 188-233 J/kg in a magnetic field of 2 T. In addition, the rotating adiabatic temperature change reaches up to 2.5 K for NdCo4.2Fe0.8 in 2 T. The good combination of enhanced rotating magnetocaloric properties and adjustable working temperature of these alloys makes them suitable for use as refrigerants in room-temperature rotating magnetic refrigeration.
学科主题	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/19920]
专题	2020专题
作者单位	1.Zhang, MX (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, CAS Key Lab Magnet Mat & Devices, Ningbo 315201, Peoples R China. 2.Zhang, MX (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Prov Key Lab Magnet Mat & Applicat Techn, Ningbo 315201, Peoples R China.
推荐引用方式 GB/T 7714	Wang, Kun,Zhang, Mingxiao,Ouyang, Yi,et al. Enhancement of rotating magnetocaloric effect by Fe substitution in NdCo5-xFex alloys[J]. INTERMETALLICS,2020,118.
APA	Wang, Kun,Zhang, Mingxiao,Ouyang, Yi,Liu, Jian,&Zhang, Hu.(2020).Enhancement of rotating magnetocaloric effect by Fe substitution in NdCo5-xFex alloys.INTERMETALLICS,118.
MLA	Wang, Kun,et al."Enhancement of rotating magnetocaloric effect by Fe substitution in NdCo5-xFex alloys".INTERMETALLICS 118(2020).