Flaky-shaped iron powder "KIP MG150D" for soft magnetic applications

Naomichi Nakamura, Yukiko Ozaki, Kazuo Higuchi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A flaky-shaped reduced iron powder "KIP MG150D" gives an initial permeability at the highest level of iron powder cores. A core with a green density of approximately 90% of the theoretical iron density shows a DC relative initial permeability close to 100, which is about 30% higher than that of a normal reduced powder core through the same compaction process therein no flake shaping is effected. Furthermore, another advantage of the flaky-shaped powder is that the improvement of the initial permeability is attained without deterioration of core loss nor its frequency characteristics. The powder particle planes align along the direction of the magnetic field applied to the core. This lamellar structure is considered to contribute to the improvement of magnetic properties through the reduction of demagnetizing effect and the eddy current loss.

Original languageEnglish
Pages (from-to)60-64
Number of pages5
JournalKawasaki Steel Technical Report
Issue number47
Publication statusPublished - Jan 1 2002
Externally publishedYes

Fingerprint

Iron powder
Powders
Lamellar structures
Eddy currents
Deterioration
Magnetic properties
Compaction
Iron
Magnetic fields

All Science Journal Classification (ASJC) codes

  • Metals and Alloys

Cite this

Flaky-shaped iron powder "KIP MG150D" for soft magnetic applications. / Nakamura, Naomichi; Ozaki, Yukiko; Higuchi, Kazuo.

In: Kawasaki Steel Technical Report, No. 47, 01.01.2002, p. 60-64.

Research output: Contribution to journalArticle

@article{c93da9d953584832ba09de13c38c8f27,
title = "Flaky-shaped iron powder {"}KIP MG150D{"} for soft magnetic applications",
abstract = "A flaky-shaped reduced iron powder {"}KIP MG150D{"} gives an initial permeability at the highest level of iron powder cores. A core with a green density of approximately 90{\%} of the theoretical iron density shows a DC relative initial permeability close to 100, which is about 30{\%} higher than that of a normal reduced powder core through the same compaction process therein no flake shaping is effected. Furthermore, another advantage of the flaky-shaped powder is that the improvement of the initial permeability is attained without deterioration of core loss nor its frequency characteristics. The powder particle planes align along the direction of the magnetic field applied to the core. This lamellar structure is considered to contribute to the improvement of magnetic properties through the reduction of demagnetizing effect and the eddy current loss.",
author = "Naomichi Nakamura and Yukiko Ozaki and Kazuo Higuchi",
year = "2002",
month = "1",
day = "1",
language = "English",
pages = "60--64",
journal = "Kawasaki Steel Technical Report",
issn = "0388-9475",
publisher = "JFE Holdings, Inc",
number = "47",

}

TY - JOUR

T1 - Flaky-shaped iron powder "KIP MG150D" for soft magnetic applications

AU - Nakamura, Naomichi

AU - Ozaki, Yukiko

AU - Higuchi, Kazuo

PY - 2002/1/1

Y1 - 2002/1/1

N2 - A flaky-shaped reduced iron powder "KIP MG150D" gives an initial permeability at the highest level of iron powder cores. A core with a green density of approximately 90% of the theoretical iron density shows a DC relative initial permeability close to 100, which is about 30% higher than that of a normal reduced powder core through the same compaction process therein no flake shaping is effected. Furthermore, another advantage of the flaky-shaped powder is that the improvement of the initial permeability is attained without deterioration of core loss nor its frequency characteristics. The powder particle planes align along the direction of the magnetic field applied to the core. This lamellar structure is considered to contribute to the improvement of magnetic properties through the reduction of demagnetizing effect and the eddy current loss.

AB - A flaky-shaped reduced iron powder "KIP MG150D" gives an initial permeability at the highest level of iron powder cores. A core with a green density of approximately 90% of the theoretical iron density shows a DC relative initial permeability close to 100, which is about 30% higher than that of a normal reduced powder core through the same compaction process therein no flake shaping is effected. Furthermore, another advantage of the flaky-shaped powder is that the improvement of the initial permeability is attained without deterioration of core loss nor its frequency characteristics. The powder particle planes align along the direction of the magnetic field applied to the core. This lamellar structure is considered to contribute to the improvement of magnetic properties through the reduction of demagnetizing effect and the eddy current loss.

UR - http://www.scopus.com/inward/record.url?scp=0036921097&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036921097&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0036921097

SP - 60

EP - 64

JO - Kawasaki Steel Technical Report

JF - Kawasaki Steel Technical Report

SN - 0388-9475

IS - 47

ER -