Title: Magnetic microwave and absorbing properties of Fe-Co alloy synthesised by mechanical alloying process

Authors: Said Bergheul, Ahmed Haddad, Abdelhamid Tafat, Mohamed Azzaz

Addresses: Departement d'Aeronautique, Universite de Blida, BP 270, Route de Soumaa, Blida, Algeria. ' Centre de Recherche Scientifique et Technique en soudage et Controle, Route Dely-Ibrahim, BP 64, Cheraga, Algerie. ' Laboratoire de Science et Genie des Materiaux, U.S.T.H.B, BP 32, Bab-Ezzouar, Algerie. ' Laboratoire de Science et Genie des Materiaux, U.S.T.H.B, BP 32, Bab-Ezzouar, Algerie

Abstract: In this paper, the structure and magnetic properties of nanocrystalline Fe_(1–x)Co_x mixtures are investigated. These structures are prepared using mechanical alloying based on planetary ball mill under several milling conditions. The structural effects of mechanical alloying of powders were investigated by scanning electron microscopy, X-ray diffraction analysis and bench of microwaves. Consequently, alloy powder with an average grain size of 10–13 nm was obtained. Maximum saturation magnetisation Ms was obtained at a composition value of 65% Co. Microwave measurements were performed on the mechanically milled Fe_(1–x)Co_x powder.

Keywords: powder technology; mechanical alloying; microstructure; microwave; magnetic properties; absorbing properties; ball milling; alloy powders; microwave absorbers.

DOI: 10.1504/IJMMP.2006.011648

International Journal of Microstructure and Materials Properties, 2006 Vol.1 No.3/4, pp.334 - 340

Published online: 07 Dec 2006 *

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