Article (Scientific journals)
Magnetocaloric Properties of Zinc-Nickel Ferrites Around Room Temperature
El Maalam, Khadija; Fkhar, lahcen; Mohammed, Hamedoun et al.
2017In Journal of Superconductivity and Novel Magnetism, p. 1-5
Peer Reviewed verified by ORBi
 

Files


Full Text
Magnetocaloric Properties of Zinc-Nickel Ferrites.pdf
Publisher postprint (710.57 kB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Spinel ferrites; Magnetocaloric; Solid-state reaction; Curie temperature; Isothermal entropy change
Abstract :
[en] In this paper, structural, magnetic, and magnetocaloric properties of zinc-doped nickel ferrite, Zn1−xNixFe2O4 (x = 0.3 and 0.4) were investigated. The samples were prepared using solid-state reaction. X-ray diffraction (XRD) and magnetization measurements were performed to study crystallographic structure and magnetic properties. For a magnetic field changing from 0 to 5 T, the corresponding isothermal entropy change was found to be near 1.4 J/kg K for both samples. The decreasing of Ni content from x = 0.4 to 0.3, enables to shift the Curie temperature of Zn1−xNixFe2O4 from 450 K toward (325 K). As main results, it was found that the relative cooling power (RCP) could be significantly enhanced by changing Ni concentration in Zn1−xNixFe2O4 (505 J/kg (for x = 0.3) and 670 J/kg (for x = 0.4)), which is considered as a recommended parameter for a wide temperature range in magnetic refrigeration application. Our finding should inspire and open new ways for the enhancement of the magnetocaloric effect in spinel ferrite-based materials.
Disciplines :
Chemistry
Author, co-author :
El Maalam, Khadija
Fkhar, lahcen
Mohammed, Hamedoun
Mahmoud, Abdelfattah  ;  Université de Liège > Département de chimie (sciences) > LCIS - GreenMAT
Boschini, Frédéric ;  Université de Liège > Plateforme APTIS
Hlil, E. K.
Benyoussef, Abdelilah
Mounkachi, Omar
Language :
English
Title :
Magnetocaloric Properties of Zinc-Nickel Ferrites Around Room Temperature
Publication date :
14 February 2017
Journal title :
Journal of Superconductivity and Novel Magnetism
ISSN :
1557-1939
eISSN :
1557-1947
Publisher :
Springer, Germany
Pages :
1-5
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 21 February 2017

Statistics


Number of views
135 (10 by ULiège)
Number of downloads
0 (0 by ULiège)

Scopus citations®
 
26
Scopus citations®
without self-citations
13
OpenCitations
 
25

Bibliography


Similar publications



Contact ORBi