磁制冷材料研究进展

Research Progress on Magnetocaloric Materials

综述了磁制冷机理及几种磁制冷材料的研究进展,特别对具有热弹性马氏体相变的Heusler型铁磁性材料以及快速凝固技术在磁制冷材料制备中的应用予以关注,并指出该技术发展的关键在于寻找室温附近具有宽工作区间、易制备、低成本且在永久磁铁磁场下具有大磁熵变的材料。

The mechanism of magnetocaloric effect and the research progress on tour kmcls ot potentml magnetocaloric materials are reviewed, especially Heusler ferromagnetic materials which possess thermoelastic martensitic transformation as well as the application of rapid solidification in the fabrication of magnetocaloric materials are focused. It is pointed that magnetocaloric materials with wide working interval in the vicinity of room temperature, low cost and large magnetic entropy change in permanent magnetic field are the future direction for the development of magnetic refrigeration technology.