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Magnetic Softening and Hardening in Metglas® 2605SC at the Onset of Nanocrystallization

Published online by Cambridge University Press:  10 February 2011

S. Aburto ,
M. Jiménez ,
V. Marquina ,
R. Gómez ,
M. L. Marquina ,
R. Ridaura  and
R. Valenzuela
S. Aburto
Affiliation:
[email protected]
M. Jiménez
Affiliation:
Facultad de Ciencias, National University of Mexico, México D.F., México
V. Marquina
Affiliation:
Candidate to Ph.D. at CIMAV, S.C., Chihuahua, México
R. Gómez
Affiliation:
Facultad de Ciencias, National University of Mexico, México D.F., México
M. L. Marquina
Affiliation:
Facultad de Ciencias, National University of Mexico, México D.F., México
R. Ridaura
Affiliation:
Facultad de Ciencias, National University of Mexico, México D.F., México
R. Valenzuela
Affiliation:
Instituto de Investigaciones en Materiales, National University of Mexico, México D.F, México
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Abstract

Mössbauer spectroscopy, coercive field and permeability were used to study the transformations produced by annealing at 375°C as-quenched amorphous ribbons of Metglas® 2605 SC of nominal composition Fe81B13.5Si3.5C2. The coercive field showed a decrease (softening) in the 0-30 min range, followed by an increase (hardening) for annealing times above 30 min. Permeability exhibited the opposite behavior, with a maximum for about 30 min. The Mössbauer magnetic hyperfine spectra showed variations in the intensities ratios, which were related with macroscopic measurements in good agreement with the softening-hardening processes.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 481: Symposium P – Science and Technology of Semiconductor Surface Preparation , 1997 , 495
Copyright
Copyright © Materials Research Society 1998

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References

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