Abstract
In this work, the thermal properties, magnetic behavior and magnetocaloric effect of the Gd55Co17.5Al24.5M3 (M = Mn, Fe and Cu) metallic glasses with minor substitution of elements exhibiting varying magnetisms were investigated. The metallic glasses exhibited good glass-forming ability and underwent a second-order magnetic transition. As compared with the original composition, the Curie temperature was improved by microalloying the antiferromagnetic Mn, nonmagnetic Cu and ferromagnetic Fe. The magnetocaloric properties of the BMGs could be tuned by the microalloying elements with varying magnetisms. The competitive magnetic entropy change of 8.94 J kg−1K−1 and a large relative cooling power of 940 J kg−1 under a field change of 5 T were obtained for the Fe-substituted and Mn-substituted BMGs, respectively. A combination of the large refrigeration capacity and considerable magnetic entropy change makes the Gd55Co17.5Al24.5M3 (M = Mn, Fe and Cu) BMGs attractive refrigerant candidates for application in the active magnetic refrigerators.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
