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Magnetic properties of Fe-based toroidal cores prepared by continuous Joule heating under tensile stress.


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Title: Magnetic properties of Fe-based toroidal cores prepared by continuous Joule heating under tensile stress.
Authors: Yanai, Takeshi / Shimada, A. / Takagi, K. / Takahashi, K. / Nakano, Masaki / Fukunaga, Hirotoshi / Yoshizawa, Y.
Issue Date: May-2007
Publisher: American Institute of Physics
Citation: Journal of Applied Physics, 101(9), 09N110; 2007
Abstract: Fe-based toroidal cores with a permeability value of several hundreds were prepared by the continuous Joule heating method under tensile stress at a high moving velocity of 120 cm/min, corresponding to an effective annealing time of approximately 1.8 s, and their magnetic properties were evaluated. The prepared core showed a constant permeability value up to 2 MHz and a low magnetic loss compared with those for conventional cores with controlled permeability. An investigation of dc-bias properties of the core suggested that the core has constant and good magnetic properties below the dc-bias field of 1 kA/m which is approximately 50% of the anisotropy field. Consequently, the continuous Joule heating under a tensile stress method at high moving velocity enables us to prepare a long annealed ribbon in a short time with simple equipment and improves productivity for the fabrication process of high performance Fe-based toroidal cores with controlled permeability. ©2007 American Institute of Physics
URI: http://hdl.handle.net/10069/21944
ISSN: 00218979
DOI: 10.1063/1.2712947
Relational Links: http://link.aip.org/link/?JAPIAU/101/09N110/1
Rights: Copyright (2007) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in J. Appl. Phys. 101, 09N110 (2007); and may be found at http://link.aip.org/link/?JAPIAU/101/09N110/1
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/21944

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