Improving the refrigeration capacity of Gd-rich wires through Fe-doping

Jingshun Liu; Qixiang Wang; Mengjun Wu; Yun Zhang; Hongxian Shen; Wen Ma

doi:10.1016/j.jallcom.2017.03.363

Improving the refrigeration capacity of Gd-rich wires through Fe-doping

Jingshun Liu^*
, Qixiang Wang
, Mengjun Wu
, Yun Zhang
, Hongxian Shen
, Wen Ma

^*Corresponding author for this work

Inner Mongolia University of Technology
Inner Mongolia Key Laboratory of Thin Film and Coatings Technology
Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

Herein, the magnetocaloric effect (MCE) of Fe-doped Gd-rich microwires has been investigated. Experimental results indicated that this type of the microwires has entirely amorphous microstructure and smooth surface, and exhibits a relatively higher Curie temperature (∼121.8 K) as for the appropriate Fe substitution, and a remarkable and reversible MCE effect with almost no thermal or magnetic hysteresis loss. For a magnetic field change of 5 T, the isothermal magnetic entropy change (-ΔS_m) for the longitudinal direction reaches as large as 10.33 J kg⁻¹K⁻¹, besides the refrigerant capacity (RC) achieves a relatively large value of 748.22 J kg⁻¹. Meanwhile, the Arrott plots also indicate that the ferromagnetic-paramagnetic transition is of the second-order. Therefore, it can be concluded that the obtained Fe-doped Gd-rich wires are used as intelligent materials with enhanced MCE property for potential multifunctional applications in magnetic refrigeration field.

Original language	English
Pages (from-to)	71-76
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	711
DOIs	https://doi.org/10.1016/j.jallcom.2017.03.363
State	Published - 2017
Externally published	Yes

Keywords

Fe-doped wires
Isothermal magnetic entropy change
Magnetocaloric effect (MCE)
Refrigeration capacity (RC)

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10.1016/j.jallcom.2017.03.363

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@article{83ddd5ee63b54b71a87982c071dd05c3,

title = "Improving the refrigeration capacity of Gd-rich wires through Fe-doping",

abstract = "Herein, the magnetocaloric effect (MCE) of Fe-doped Gd-rich microwires has been investigated. Experimental results indicated that this type of the microwires has entirely amorphous microstructure and smooth surface, and exhibits a relatively higher Curie temperature (∼121.8 K) as for the appropriate Fe substitution, and a remarkable and reversible MCE effect with almost no thermal or magnetic hysteresis loss. For a magnetic field change of 5 T, the isothermal magnetic entropy change (-ΔSm) for the longitudinal direction reaches as large as 10.33 J kg−1K−1, besides the refrigerant capacity (RC) achieves a relatively large value of 748.22 J kg−1. Meanwhile, the Arrott plots also indicate that the ferromagnetic-paramagnetic transition is of the second-order. Therefore, it can be concluded that the obtained Fe-doped Gd-rich wires are used as intelligent materials with enhanced MCE property for potential multifunctional applications in magnetic refrigeration field.",

keywords = "Fe-doped wires, Isothermal magnetic entropy change, Magnetocaloric effect (MCE), Refrigeration capacity (RC)",

author = "Jingshun Liu and Qixiang Wang and Mengjun Wu and Yun Zhang and Hongxian Shen and Wen Ma",

note = "Publisher Copyright: {\textcopyright} 2017",

year = "2017",

doi = "10.1016/j.jallcom.2017.03.363",

language = "英语",

volume = "711",

pages = "71--76",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Improving the refrigeration capacity of Gd-rich wires through Fe-doping

AU - Liu, Jingshun

AU - Wang, Qixiang

AU - Wu, Mengjun

AU - Zhang, Yun

AU - Shen, Hongxian

AU - Ma, Wen

PY - 2017

Y1 - 2017

N2 - Herein, the magnetocaloric effect (MCE) of Fe-doped Gd-rich microwires has been investigated. Experimental results indicated that this type of the microwires has entirely amorphous microstructure and smooth surface, and exhibits a relatively higher Curie temperature (∼121.8 K) as for the appropriate Fe substitution, and a remarkable and reversible MCE effect with almost no thermal or magnetic hysteresis loss. For a magnetic field change of 5 T, the isothermal magnetic entropy change (-ΔSm) for the longitudinal direction reaches as large as 10.33 J kg−1K−1, besides the refrigerant capacity (RC) achieves a relatively large value of 748.22 J kg−1. Meanwhile, the Arrott plots also indicate that the ferromagnetic-paramagnetic transition is of the second-order. Therefore, it can be concluded that the obtained Fe-doped Gd-rich wires are used as intelligent materials with enhanced MCE property for potential multifunctional applications in magnetic refrigeration field.

AB - Herein, the magnetocaloric effect (MCE) of Fe-doped Gd-rich microwires has been investigated. Experimental results indicated that this type of the microwires has entirely amorphous microstructure and smooth surface, and exhibits a relatively higher Curie temperature (∼121.8 K) as for the appropriate Fe substitution, and a remarkable and reversible MCE effect with almost no thermal or magnetic hysteresis loss. For a magnetic field change of 5 T, the isothermal magnetic entropy change (-ΔSm) for the longitudinal direction reaches as large as 10.33 J kg−1K−1, besides the refrigerant capacity (RC) achieves a relatively large value of 748.22 J kg−1. Meanwhile, the Arrott plots also indicate that the ferromagnetic-paramagnetic transition is of the second-order. Therefore, it can be concluded that the obtained Fe-doped Gd-rich wires are used as intelligent materials with enhanced MCE property for potential multifunctional applications in magnetic refrigeration field.

KW - Fe-doped wires

KW - Isothermal magnetic entropy change

KW - Magnetocaloric effect (MCE)

KW - Refrigeration capacity (RC)

UR - https://www.scopus.com/pages/publications/85016772385

U2 - 10.1016/j.jallcom.2017.03.363

DO - 10.1016/j.jallcom.2017.03.363

M3 - 文章

AN - SCOPUS:85016772385

SN - 0925-8388

VL - 711

SP - 71

EP - 76

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Improving the refrigeration capacity of Gd-rich wires through Fe-doping

Abstract

Keywords

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