Abstract
The phase constitution, microstructure, and magnetocaloric effect (MCE) in low-cost iron-based binary Y2Fe17 ribbons have been investigated by using x-ray diffraction, transmission electron microscopy, and measuring their magnetic properties, respectively. It is found that the crystal structure of the as-spun ribbons is hexagonal Th2Ni17 type with the wheel speed ranging from 10to40m∕s because of the week glass-forming ability. The ribbon prepared at 20m∕s shows a magnetic entropy change of 1.89J∕kgK under magnetic field change of 10kOe. The low-cost, easy-synthesis, and considerable MCE properties make Y2Fe17 alloys in ribbon form as suitable room temperature MCE materials.
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