Title :
Magnetocaloric effect and critical behavior in Gd54Ho6Co25 Al14Si amorphous ribbons
Author :
Wang, F. ; Feng, T. ; Sun, R. ; Yu, S. ; Wang, J.
Author_Institution :
Sch. of Mater. Sci. & Enigeering, NingBo Univ. of Technol., Ningbo, China
Abstract :
It has been found that rare earth based metallic glasses manifested large magetocaloric effect over much wider temperature range than most of the crystalline materials. It was mainly attributed to their unique microstructure-a long range disorder and a short range order. In this work, we investigated the magnetocaloric effect in Gd54Ho6Co25Al14Si amorphous ribbons. A large magnetic entropy change and a relative high refrigerant capacity were observed. The critical behavior was studied near the phase transition temperature.
Keywords :
aluminium compounds; amorphous magnetic materials; cobalt compounds; gadolinium compounds; holmium compounds; magnetocaloric effects; metallic glasses; Gd54Ho6Co25Al14Si; amorphous ribbons; critical behavior; long range disorder; magnetic entropy change; magnetocaloric effect; metallic glasses; microstructure; refrigerant capacity; short range order; Amorphous magnetic materials; Entropy; Magnetic field measurement; Magnetometers; Refrigerants; Temperature dependence; Temperature measurement;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7156571
