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首页> 外文期刊>Journal of Applied Physics >High-entropy bulk metallic glasses as promising magnetic refrigerants
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High-entropy bulk metallic glasses as promising magnetic refrigerants

机译：高熵大块金属玻璃有望成为磁性制冷剂

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摘要

In this paper, the Ho_(20)Er_(20)Co_(20)Al_(20)RE_(20) (RE = Gd, Dy, and Tm) high-entropy bulk metallic glasses (HE-BMGs) with good magnetocaloric properties are fabricated successfully. The HE-BMGs exhibit a second-order magnetic phase transition. The peak of magnetic entropy change (△S~(pk)_M) and refrigerant capacity (RC) reaches 15.0 J kg~(-1) K~(-1) and 627 J kg~(-1) at 5T, respectively, which is larger than most rare earth based BMGs. The heterogeneous nature of glasses also contributes to the large △S~(pk)_M and RC. In addition, the magnetic ordering temperature, △S~(pk)_M and RC can be widely tuned by alloying different rare earth elements. These results suggest that the HE-BMGs are promising magnetic refrigerant at low temperatures.
机译：在本文中，具有良好磁热性能的Ho_（20）Er_（20）Co_（20）Al_（20）RE_（20）（RE = Gd，Dy和Tm）高熵大块金属玻璃（HE-BMGs）被成功制造。 HE-BMG具有二阶磁性相变。 5T时的磁熵变峰值（△S〜（pk）_M）和制冷剂容量（RC）分别达到15.0 J kg〜（-1）K〜（-1）和627 J kg〜（-1），比大多数基于稀土的BMG大。玻璃的异质性也导致较大的△S〜（pk）_M和RC。另外，通过将不同的稀土元素合金化，可以广泛地调节磁有序温度△S〜（pk）_M和RC。这些结果表明，HE-BMG是有前途的低温磁性制冷剂。

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  • 来源
    《Journal of Applied Physics》 |2015年第7期|073902.1-073902.5|共5页
  • 作者

    Juntao Huo; Lishan Huo; Jiawei Li; He Men; Xinmin Wang; Akihisa Inoue; Chuntao Chang; Jun-Qiang Wang; Run-Wei Li;

  • 作者单位

    Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China,Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China;

    Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China,Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China;

    Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China,Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China;

    Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China,Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China;

    Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China,Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China;

    Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China,Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China,International Institute of Green Materials, Josai International University, Tougane 283-8555, Japan;

    Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China,Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China;

    Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China,Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China;

    Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China,Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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