Title :
Tunable magnetocaloric response in high-speed melt-spun La-Ce-Fe-Si ribbons
Author :
Hou, X. ; Xue, Y. ; Han, N. ; Liu, C. ; Lu, Q. ; Phan, M.
Author_Institution :
Shanghai Univ., Shanghai, China
Abstract :
This study aims to investigate the structural properties and magnetocaloric effect of La-Ce-Fe-Si compounds prepared by melt spinning and subsequent annealing at 1273 K for 10-60 min. X-ray diffraction, scanning electron microscopy, and energy dispersive spectrometry are used to determine the crystal structure, grain size, and composition of the alloy. Results show that the Curie temperature of the alloy increases and the maximum magnetic entropy change decreases as the annealing time increases.
Keywords :
Curie temperature; X-ray chemical analysis; X-ray diffraction; annealing; cerium alloys; crystal structure; entropy; grain size; iron alloys; lanthanum alloys; magnetocaloric effects; melt spinning; scanning electron microscopy; silicon alloys; Curie temperature; LaCeFeSi; X-ray diffraction; alloy composition; annealing; crystal structure; energy dispersive spectrometry; grain size; magnetic entropy; magnetocaloric effect; melt spinning; scanning electron microscopy; temperature 1273 K; time 10 min to 60 min; Annealing; Compounds; Entropy; Magnetic fields; Magnetic resonance imaging; Metals; Scanning electron microscopy;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7157655
