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Fabrication of Fe-based ribbon with controlled permeability by Joule heating under tensile stress


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Title: Fabrication of Fe-based ribbon with controlled permeability by Joule heating under tensile stress
Authors: Yanai, Takeshi / Takagi, K. / Takahashi, Ken'ichiro / Nakano, Masaki / Yoshizawa, Y. / Fukunaga, Hirotoshi
Issue Date: Oct-2008
Publisher: Elsevier B.V.
Citation: Journal of Magnetism and Magnetic Materials, 320(20), pp.e833-e836; 2008
Abstract: We prepared an Fe-based ribbon with controlled permeability and low magnetic loss by Continuous Stress-Annealing by Joule Heating (CSA-JH) method. The shortest annealing time necessary for the obtaining of the ribbons with completely developed anisotropy was 1 sec, but in order to obtain the sufficiently crystallized ribbons with small saturation magnetostriction it is required to perform annealing longer than 2 sec. A toroidal core was prepared from a long ribbon with controlled permeability and small saturation magnetostriction, and the magnetic loss and relative permeability of the core were evaluated in the frequency range of 0.1 - 3 MHz. The permeability was kept constant up to 2 MHz, and the magnetic loss is lower than that for other types of core with a similar permeability value. These results suggest that the CSA-JH method is a promising method for realizing an Fe-based core with excellent magnetic properties.
Description: Proceedings of the 18th International Symposium on Soft Magnetic Materials
Keywords: Continuous stress-annealing / Stress-induced anisotropy / Joule heating / Controlled permeability / Nanostructure material
URI: http://hdl.handle.net/10069/18704
ISSN: 03048853
DOI: 10.1016/j.jmmm.2008.04.180
Rights: (c) 2008 Elsevier B.V. All rights reserved
Type: Journal Article
Text Version: author
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/18704

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