Method for Measuring the Magnetic Properties of High-Density Magnetic Composites Under Compressive Stress

Author

Takahashi, N. ; Imahashi, T. ; Nakano, M. ; Miyagi, D. ; Arakawa, T. ; Nakai, H. ; Tajima, S.

Author_Institution

Dept. of Electr. & Electron. Eng., Okayama Univ.

Volume

43

Issue

6

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

2749

Lastpage

2751

Abstract

When using a powder magnetic core fabricated from iron powder coated with an insulator in motors, reactors, etc., the effect of stress on its magnetic properties should be considered. In this paper, a system for measuring the magnetic properties of a powder magnetic core under compressive stress was developed and applied to a powder magnetic core, namely a high-density magnetic composite (HDMC). It is illustrated that the iron loss is increased by about 20% when a compressive stress of 100 MPa was applied

Keywords

compressive strength; ferromagnetic materials; iron; magnetic variables measurement; magnetomechanical effects; powder cores; soft magnetic materials; Fe; compressive stress; high-density magnetic composites; powder magnetic core; soft magnetic composite; Coils; Compressive stress; Magnetic cores; Magnetic field measurement; Magnetic flux; Magnetic properties; Powders; Saturation magnetization; Soft magnetic materials; Stress measurement; Compressive stress; magnetic characteristic; soft magnetic composite;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2007.893848

Filename

4202936