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首页> 外文期刊>Applied Physics Letters >Giant magnetocaloric effect in melt-spun Ni-Mn-Ga ribbons with magneto-multistructural transformation
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Giant magnetocaloric effect in melt-spun Ni-Mn-Ga ribbons with magneto-multistructural transformation

机译：具有磁多结构转变的熔纺Ni-Mn-Ga薄带中的巨磁热效应

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摘要

Magnetic refrigeration based on the magnetocaloric effect (MCE) may provide an energy-efficient and environment-friendly alternative to the conventional gas compression/expansion cooling technology. For potential applications, low-cost and high-performance magnetic refrigerants are in great need. Here, we demonstrate that giant MCE can be achieved in annealed Ni_(52)Mn_(26)Ga_(22) ribbons with magneto-multistructural transformation. It yields a maximum magnetic entropy change of -30.0 J kg~(-1) K~(-1) at the magnetic field change of 5 T, being almost three times as that of initial melt-spun ribbons and comparable to or even superior to that of polycrystalline bulk alloys.
机译：基于磁热效应（MCE）的磁制冷技术可以为传统的气体压缩/膨胀冷却技术提供节能，环保的替代方案。对于潜在的应用，非常需要低成本和高性能的磁性制冷剂。在这里，我们证明可以通过磁多结构转变在退火的Ni_（52）Mn_（26）Ga_（22）碳带中实现巨型MCE。在5 T的磁场变化下，它产生的最大磁熵变化为-30.0 J kg〜（-1）K〜（-1），几乎是初始熔纺带的三倍，相当甚至更好。与多晶块状合金相比。

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  • 来源
    《Applied Physics Letters》 |2014年第4期|044101.1-044101.5|共5页
  • 作者

    Zongbin Li; Yudong Zhang; C. F. Sanchez-Valdes; J. L. Sanchez Llamazares; Claude Esling; Xiang Zhao; Liang Zuo;

  • 作者单位

    Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang 110819, China;

    Laboratoire d' Etude des Microstructures et de Mecanique des Materiaux (LEM3), CNRS UMR 7239, Universite de Lorraine, 57045 Metz, France,Laboratory of Excellence on Design of Alloy Metals for low-mAss Structures (DAMAS), Universite de Lorraine, 57045 Metz, France;

    Instituto Potosino de Investigacion Cientifica y Tecnologica A.C., Camino a la Presa San Jose 2055, Col. Lomas 4~a, San Luis Potosi, S.L.P. 78216, Mexico;

    Instituto Potosino de Investigacion Cientifica y Tecnologica A.C., Camino a la Presa San Jose 2055, Col. Lomas 4~a, San Luis Potosi, S.L.P. 78216, Mexico;

    Laboratoire d' Etude des Microstructures et de Mecanique des Materiaux (LEM3), CNRS UMR 7239, Universite de Lorraine, 57045 Metz, France,Laboratory of Excellence on Design of Alloy Metals for low-mAss Structures (DAMAS), Universite de Lorraine, 57045 Metz, France;

    Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang 110819, China;

    Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang 110819, 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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