Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/79661
Type: Artigo de periódico
Title: Structural and magnetic properties of nanocrystalline particles in an amorphous Fe73.5Nb3CuSi13.5B9 matrix
Author: Valenzuela, LA
Duque, JGS
Meneses, CT
Nunes, WC
Knobel, M
Abstract: We report structural and magnetic properties of fine particles embedded in an amorphous magnetic matrix. As-quenched amorphous Fe73.5Nb3CuSi13.5B9 ribbons (FINEMET) were submitted to the thermal treatments of several times (1 <= t <= 240 min) at 570 degrees C using a conventional furnace. The analyses of the X-ray diffraction patterns at room temperature reveal that our samples consist of single phase Fe3Si nanocrystals embedded in a residual amorphous phase. Magnetic measurements show that the saturation moment at T = 450 degrees C increases as a function of annealing time. This behavior is attributed to an increase of the fraction of nanocrystallites in the residual amorphous phase. (C) 2008 Elsevier B.V. All rights reserved.
Subject: Alloys
Nanocrystals
X-ray diffraction
Magnetic properties
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/j.jnoncrysol.2008.04.039
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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