Abstract
The magnetic and magnetocaloric properties of the amorphous Fe87Ce8B5 ribbon were investigated in comparison with the Fe87Zr8B5 amorphous alloy (AA). It was found that the Fe87Ce8B5 AA shows a rather high maximum magnetic entropy change (−ΔSmpeak, ∼ 3.65 J/(kg × K) under 5 T and 1.47 J/(kg × K) under 1.5 T) near its Curie temperature (Tc, ∼ 283 K), which is much higher than the − ΔSmpeak of the Fe87Zr8B5 AA near 306 K. The mechanism for the enhanced − ΔSmpeak and decreased Tc by the Ce substitution for Zr in the Fe87M8B5 AAs were investigated. The results are helpful for achieving higher − ΔSmpeak of the iron-based AAs at the temperatures slightly lower than the room temperature, which is conducive to construct a table-like magnetic entropy change (−ΔSm) curve with higher average − ΔSm within the working temperature range of a domestic air conditioner.
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