Mössbauer study of amorphous Fe80-xCrxSi8B12 ribbons

 

S. El Khiraoui1*, M. Sajieddine1, H. Lassri2, M. Sahlaoui1, E. Agouriane1, S.E.H. Drissi3

1Laboratoire de Physique et Mécanique des Matériaux, Université Sultan Moulay Slimane, FST, BP 523, Béni-Mellal (Maroc)

2Laboratoire de Physique des Matériaux, Micro-électronique, Automatique et Thermique, Faculté des Sciences Aïn Chock, Université Hassan II, BP 5366, Mâarif, Casablanca, Maroc.

3Laboratoire Energétique, Matériaux et Environnement, Ecole Supérieure de technologie, Salé (Maroc)

* Corresponding author: E-mail: elksaliha@yahoo.fr

Received: 11 June 2011; revised version accepted: 26 September 2011

 

Abstract

Melt spun ribbons of amorphous Fe80-xCrxSi8B12 (x = 2, 4, 6, 8, 10, 12) metallic glasses have been studied by X-ray diffraction and Mössbauer spectrometry. It is shown that Cr addition and annealing effect influence drastically the magnetic and structural properties. 57Fe Mössbauer spectra for as-synthesized samples and for Fe74Cr6Si8B12 annealed at the temperatures range 573–873K in Ar atmospher for 2h are presented. The observed mean hyperfine field at Fe sites in Fe80-xCrxSi8B12 increases with decreasing chromium content and with increasing annealing temperature.

                           

Keywords: Melt spinning; Amorphous ferromagnets; Mössbauer spectrometry; Magnetic properties.

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