Magnetic properties of nanocomposites containing Fe-Ni or Fe dispersed in a Mn-Zn ferrite matrix

Author

Moulin, Gun-Yong ; Champion, Yannick ; Varga, Lajos Karoly ; Grenèche, Jean-Marc ; Mazaleyrat, Frédéric

Author_Institution

Systemes et Applications pour les Technol. de l´´Inf. et de l´´Energie, ENS Cachan, France

Volume

38

Issue

5

fYear

2002

fDate

9/1/2002 12:00:00 AM

Firstpage

3015

Lastpage

3017

Abstract

Composites have been prepared from Mn-Zn and Fe or Fe₂₅Ni₇₅ nanostructured powders, by melting in a planetary mill, compaction, and subsequent annealing. A solid state oxido-reduction reaction between iron and ferrite degrades the magnetic properties. On the other hand, Permalloy, which is more resistant to this reaction, results in soft magnetic nanocomposites which possess a magnetization higher than those of good ferrites.

Keywords

Permalloy; annealing; composite materials; ferrites; iron; magnetic particles; magnetisation; manganese compounds; nanostructured materials; powder technology; reduction (chemical); soft magnetic materials; zinc compounds; Fe; Fe₂₅Ni₇₅; Fe₂₅Ni₇₅ nanostructured powders; Mn-Zn ferrite matrix; Permalloy; annealing; compaction; magnetic properties; magnetization; melting; nanocomposites; planetary mill; soft magnetic nanocomposites; solid state oxido-reduction reaction; Annealing; Compaction; Degradation; Ferrites; Iron; Magnetic properties; Milling machines; Nanocomposites; Powders; Solid state circuits;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2002.802120

Filename

1042442