Journal of the Japan Society of Applied Electromagnetics and Mechanics
Online ISSN : 2187-9257
Print ISSN : 0919-4452
Special Issue on The 23rd MAGDA Conference in Takamatsu (MAGDA2014)
Evaluation of relative permeability and magnetic shielding performance of Glassy alloy varying in composition
Kunihisa TASHIROHiroyuki WAKIWAKARyo NAKANOTakanori IGARASHITomohito ISHIKAWAAkihiro MAKINO
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2015 Volume 23 Issue 2 Pages 356-361

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Abstract

 Glassy alloys have exceptional soft magnetic properties. It has an advantage that shaping is possible by thermal spraying method and ideal coercive force of Glassy alloys is zero as same as other amorphous metals. Glassy alloy's magnetic properties will be improved by control of internal stress and grant of induced magnetic anisotropy with heat treatment. In this paper, we fabricated ring and cylinder samples of two kinds Glassy alloys and evaluated its magnetic property. As a result, we found the relative permeability of ring samples is about 400 and that of cylinder samples is about 120. Residual magnetization of cylindrical magnetic shield is about 0.10 mT. Transverse shielding factor for AC magnetic field is about 10.

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© 2015 The Japan Society of Applied Electromagnetics and Mechanics
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