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La(Fe, Si)13-based alloys have attracted much attention due to their low costs and non-toxic of raw material, and large MCEs compared to other magnetic refrigeration materials such as Gd-Si-Ge[1] and Mn-Fe-P-As[2] compounds.
Because of the high saturation magnetization (μ0Ms=1.6 T) and high magnetocrystalline anisotropy (Ku=4.5 MJ/m3) of the Nd2Fe14B phase, anisotropic Nd-Fe-B sintered magnets exhibit the highest energy product (474 kJ/m) of all the permanent magnetic materials[1]. However, the issue on substitution of Pr-Nd or Nd by Ce attracted renewed attention, due to the cost pressure of Nd, PrNd alloy and the large...
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