Tunable maximum energy product in CoFe2O4 nanopowder for permanent magnet application

Abraime, B.; Mahmoud, Abdelfattah; Boschini, Frédéric; Tamerd, M. Ait; Benyoussef, A.; Hamedoun, M.; Xiao, Y.; Kenz, A. El; Mounkachi, O.

doi:10.1016/j.jmmm.2018.07.063

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Tunable maximum energy product in CoFe2O4 nanopowder for permanent magnet application

Abraime, B.; Mahmoud, Abdelfattah; Boschini, Frédéric et al.

2018 • In Journal of Magnetism and Magnetic Materials, 467, p. 129 - 134

Peer Reviewed verified by ORBi

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https://hdl.handle.net/2268/235213

DOI
10.1016/j.jmmm.2018.07.063

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Keywords :

Ferrites; Permanent magnet; Magnetic properties; (BH)

Abstract :

[en] In this study, we report the behavior of maximum energy product (BH)max of cobalt ferrite nanopowder towards the variation of calcinations temperature. The studied CoFe2O4 nanopowder was synthesized using sol–gel autocombustion method. X-ray diffraction, scanning electron microscopy, Mössbauer spectroscopy and superconducting quantum interference device magnetometer techniques were used to characterize crystal structure, phase composition, morphology and magnetic properties. By changing the calcination temperature (T = 600 °C, 800 °C, 1000 °C and 1100 °C), the structural and magnetic properties of the compounds could be tuned. The magnetic properties results show that the highest value of (BH)max is close to 0.35 MGOe observed for the sample calcined at T = 800 °C. These results suggest that (BH)max of cobalt ferrite nanopowder can be enhanced by optimizing synthesis steps.

Disciplines :

Chemistry

Author, co-author :

Abraime, B.

Mahmoud, Abdelfattah ; Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT

Boschini, Frédéric ; Université de Liège - ULiège > Plateforme APTIS

Tamerd, M. Ait

Benyoussef, A.

Hamedoun, M.

Xiao, Y.

Kenz, A. El

Mounkachi, O.

Language :

English

Title :

Tunable maximum energy product in CoFe2O4 nanopowder for permanent magnet application

Publication date :

21 July 2018

Journal title :

Journal of Magnetism and Magnetic Materials

ISSN :

0304-8853

eISSN :

1873-4766

Publisher :

Elsevier

Volume :

467

Pages :

129 - 134

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 07 May 2019

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