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Materials Challenges for High Performance Magnetocaloric Refrigeration Devices

机译：高性能磁热制冷设备的材料挑战

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摘要

Magnetocaloric materials with a Curie temperature near room temperature have attracted significant interest for some time due to their possible application for high-efficiency refrigeration devices. This review focuses on a number of key issues of relevance for the characterization, performance and implementation of such materials in actual devices. The phenomenology and fundamental thermodynamics of magnetocaloric materials is discussed, as well as the hysteresis behavior often found in first-order materials. A number of theoretical and experimental approaches and their implications are reviewed. The question of how to evaluate the suitability of a given material for use in a magnetocaloric device is covered in some detail, including a critical assessment of a number of common performance metrics. Of particular interest is which non-magnetocaloric properties need to be considered in this connection. An overview of several important materials classes is given before considering the performance of materials in actual devices. Finally, an outlook on further developments is presented.
机译：居里温度接近室温的磁热材料由于可能用于高效制冷设备而引起了人们的关注一段时间。这篇综述着重于与这些材料在实际设备中的表征，性能和实施相关的一些关键问题。讨论了磁热材料的现象学和基本热力学，以及一阶材料中经常出现的磁滞行为。评论了许多理论和实验方法及其含义。详细讨论了如何评估给定材料在磁热装置中使用的适用性的问题，包括对许多常用性能指标的严格评估。特别令人感兴趣的是，在此方面需要考虑哪些非磁热性质。在考虑实际设备中的材料性能之前，先概述了几种重要的材料类别。最后，提出了进一步发展的前景。

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  • 来源
    《Advanced energy materials》 |2012年第11期|1-31|共31页
  • 作者

    Anders Smith; Christian R.H. Bahl; Rasmus BjØrk; Kurt Engelbrecht; Kaspar K. Nielsen; Nini Pryds;

  • 作者单位

    Department of Energy Conversion and Storage Technical University of Denmark Frederiksborgvej 399 DK-4000 Roskilde Denmark;

    Department of Energy Conversion and Storage Technical University of Denmark Frederiksborgvej 399 DK-4000 Roskilde Denmark;

    Department of Energy Conversion and Storage Technical University of Denmark Frederiksborgvej 399 DK-4000 Roskilde Denmark;

    Department of Energy Conversion and Storage Technical University of Denmark Frederiksborgvej 399 DK-4000 Roskilde Denmark;

    Department of Energy Conversion and Storage Technical University of Denmark Frederiksborgvej 399 DK-4000 Roskilde Denmark;

    Department of Energy Conversion and Storage Technical University of Denmark Frederiksborgvej 399 DK-4000 Roskilde Denmark;

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  • 正文语种 eng
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  • 关键词

    magnetocaloric effect; magnetic cooling; magnetic materials; active magnetic regenerator; materials characterization;

    机译：磁热效应磁冷却磁性材料有源蓄热器材料表征;

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