LOW MAGNETOSTRICTION BODY AND DUST CORE USING SAME

Title:

LOW MAGNETOSTRICTION BODY AND DUST CORE USING SAME

Document Type and Number:

WIPO Patent Application WO/2006/126553

Kind Code:

A1

Abstract:

Disclosed is a low cost, low magnetostriction body which is decreased only in magnetostriction while maintaining magnetic characteristics such as loss and saturation magnetization at desired values. Also disclosed is a dust core using such a low magnetostriction body. Specifically disclosed is a low magnetostriction body obtained by shaping a soft magnetic material powder added with an organic compound having an effect of changing the magnetostriction of the soft magnetic material when combined with it, and heat-treating a green compact in an inert atmosphere. The absolute value of the magnetostriction &lgr _O-P(1T/50Hz) of the low magnetostriction body is not more than 1.0 × 10^-6. Also specifically disclosed is a dust core using such a low magnetostriction body.

Inventors:

HATTORI TAKESHI (JP)
TAJIMA SHIN (JP)
SUGIYAMA MASAKI (JP)
KISHIMOTO HIDEFUMI (JP)
YAMAGUCHI TOSHIYA (JP)
KIKKOU TADAYOSHI (JP)

Application Number:

PCT/JP2006/310273

Publication Date:

November 30, 2006

Filing Date:

May 23, 2006

Export Citation:

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Assignee:

TOYOTA MOTOR CO LTD (JP)
FINE SINTER KK (JP)
HATTORI TAKESHI (JP)
TAJIMA SHIN (JP)
SUGIYAMA MASAKI (JP)
KISHIMOTO HIDEFUMI (JP)
YAMAGUCHI TOSHIYA (JP)
KIKKOU TADAYOSHI (JP)

International Classes:

H01F1/26; C22C38/00; C22C38/02; H01F3/08; H01F41/02

Foreign References:

JP2004146563A	2004-05-20
JP2005050918A	2005-02-24
JP2000144347A	2000-05-26
JPS5825449A	1983-02-15

Other References: