Tunable maximum energy product in CoFe2O4 nanopowder for permanent magnet application

被引：25

作者：

Abraime, B. ^{[1
,2
]}

Mahmoud, A. ^{[3
]}

Boschini, F. ^{[3
]}

Tamerd, M. Ait ^{[2
]}

Benyoussef, A. ^{[1
,2
]}

Hamedoun, M. ^{[1
]}

Xiao, Y. ^{[4
,5
]}

El Kenz, A. ^{[2
]}

Mounkachi, O. ^{[1
,2
]}

机构：

[1] MAScIR Fdn, Mat & Nanomat Ctr, BP 10100, Rabat, Morocco

[2] Mohammed V Univ, Fac Sci, Lab Condensed Matter & Interdisciplinary Sci LaMC, BP 1014, Rabat, Morocco

[3] Univ Liege, Inst Chem B6, CESAM, GREENMAT, B-4000 Liege, Belgium

[4] Forschungszentrum Julich, JARA FIT, JCNS, D-52425 Julich, Germany

[5] Forschungszentrum Julich, JARA FIT, PGI, D-52425 Julich, Germany

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2018年 / 467卷

关键词：

Ferrites; Permanent magnet; Magnetic properties; (BH)(max); FERRITE NANOPARTICLES; NIFE2O4; SIZE; TEMPERATURE;

D O I：

10.1016/j.jmmm.2018.07.063

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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, Mossbauer spectroscopy and super-conducting quantum interference device magnetometer techniques were used to characterize crystal structure, phase composition, morphology and magnetic properties. By changing the calcination temperature (T = 600 degrees C, 800 degrees C, 1000 degrees C and 1100 degrees 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 degrees C. These results suggest that (BH)(max) of cobalt ferrite nanopowder can be enhanced by optimizing synthesis steps.

引用

页码：129 / 134

页数：6

共 36 条

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