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首页> 外文期刊>Journal of Applied Physics >Magnetocaloric effect in heavy rare-earth elements doped Fe-based bulk metallic glasses with tunable Curie temperature
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Magnetocaloric effect in heavy rare-earth elements doped Fe-based bulk metallic glasses with tunable Curie temperature

机译：居里温度可调的重稀土元素掺杂铁基大块金属玻璃的磁热效应

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摘要

The effects of heavy rare earth (RE) additions on the Curie temperature (T_C) and magnetocaloric effect of the Fe-RE-B-Nb (RE = Gd, Dy and Ho) bulk metallic glasses were studied. The type of dopping RE element and its concentration can easily tune T_C in a large temperature range of 120 K without significantly decreasing the magnetic entropy change (△S_m) and refrigerant capacity (RC) of the alloys. The observed values of △S_M and RC of these alloys compare favorably with those of recently reported Fe-based metallic glasses with enhanced RC compared to Gd_5Ge_(1.9)Si_2Fe_(0.1). The tunable T_C and large glass-forming ability of these RE doped Fe-based bulk metallic glasses can be used in a wide temperature range with the final required shapes.
机译：研究了重稀土（RE）对Fe-RE-B-Nb（RE = Gd，Dy和Ho）大块金属玻璃的居里温度（T_C）和磁热效应的影响。掺杂稀土元素的类型及其浓度可以轻松地在120 K的较大温度范围内调节T_C，而不会显着降低合金的磁熵变（△S_m）和制冷剂容量（RC）。与Gd_5Ge_（1.9）Si_2Fe_（0.1）相比，这些合金的△S_M和RC的观察值与最近报道的具有增强的RC的铁基金属玻璃的观察值相称。这些稀土掺杂的铁基块状金属玻璃的可调节的T_C和大的玻璃形成能力可在很宽的温度范围内以最终所需的形状使用。

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  • 来源
    《Journal of Applied Physics》 |2014年第6期|063902.1-063902.4|共4页
  • 作者

    Jiawei Li; Juntao Huo; Jiayan Law; Chuntao Chang; Juan Du; Qikui Man; Xinmin 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;

    Department of Applied Physics, Chalmers University of Technology, SE-412 96 Goeteborg, Sweden;

    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;

  • 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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