Abstract
Magnetocaloric effect (MCE) in multicomponent (Ce0.71Pr0.07Nd0.22)2Fe17-xAlx (x = 0.6, 0.8) alloys was studied using the heat capacity and magnetization data. Both the samples crystallize in a rhombohedral Th2Zn17-type structure. The maximum values of magnetic entropy change (-ΔSM) without hysteresis loss are found to be 1.19 Jkg−1K−1 and 1.23 Jkg−1K−1 with relative cooling power (RCP) values of 52.3 Jkg−1 and 66.4 Jkg−1 under an applied field change of 0–1 T for x = 0.6 and 0.8, respectively. Meanwhile, a wide working temperature range (44/54 K) and a large adiabatic temperature change (ΔTad) of 5.6/5.8 K were also achieved for the present compounds.
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