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    • 2. 发明申请
    • PERFORMANCE IMPROVEMENT OF MAGNETOCALORIC CASCADES THROUGH OPTIMIZED MATERIAL ARRANGEMENT
    • 通过优化的材料安排来实现磁铁结构的性能改进
    • US20140202171A1
    • 2014-07-24
    • US14162123
    • 2014-01-23
    • BASF SE
    • Colman CARROLLOlaf RoggeBernard Hendrik ReesinkAndrew RoweDanny ArnoldArmando Tura
    • H01F1/01
    • F25B21/00F25B2321/002H01F1/015
    • A magnetocaloric cascade containing at least three different magnetocaloric materials with different Curie temperatures, which are arranged in succession by descending Curie temperature, wherein none of the different magnetocaloric materials with different Curie temperatures has a higher layer performance Lp than the magnetocaloric material with the highest Curie temperature and wherein at least one of the different magnetocaloric materials with different Curie temperatures has as lower layer performance Lp than the magnetocaloric material with the highest Curie temperature wherein Lp of a particular magnetocaloric material being calculated according to formula (I): Lp=m*dTad,max with dTad,max: maximum adiabatic temperature change which the particular magnetocaloric material undergoes when it is magnetized from a low magnetic field to high magnetic field during magnetocaloric cycling, m: mass of the particular magnetocaloric material contained in the magnetocaloric cascade.
    • 包含具有不同居里温度的至少三种不同磁热材料的磁热级联,其通过降低居里温度而相继排列,其中具有不同居里温度的不同的热电材料不具有比具有最高居里的磁热材料更高的层性能Lp 其中具有不同居里温度的不同磁热材料中的至少一种具有比具有最高居里温度的磁热材料具有较低层性能Lp,其中特定磁热材料的Lp根据式(I)计算:Lp = m * dTad,max,dTad,max:特定磁热材料在磁热循环期间从低磁场磁化到高磁场时经历的最大绝热温度变化,m:包含在磁热级联中的特定磁热材料的质量。