Fabrication of nanocrystalline Fe84.3Si4B 8P3Cu0.7 powders with high magnetization

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

With the aim of preparing the raw powders used for soft magnetic compacts production, nanocrystalline soft magnetic powders of Fe84.3Si 4B8P3Cu0.7 were successfully fabricated using crystallization by rapid heat-treatment and mechanical ball-milling methods. We investigated the relation of the magnetic properties, crystallization degree and heat-treatment condition in salt-bath process. In this study, a fine nanocrystalline structure with an extremely number of α-Fe grains with the similar size of ∼ 30 nm was obtained. This led to excellent soft magnetic properties, i.e., 1.85 T (197.7 emu/g) and 10 A/m for saturation magnetization and coercivity, respectively. By controlling the milling time, different particle size of powder can be obtained.

Original languageEnglish
Title of host publicationMaterials Integration
PublisherTrans Tech Publications Ltd
Pages133-140
Number of pages8
ISBN (Print)9783037853764
DOIs
Publication statusPublished - 2012
EventInt. Symposium of GCOE: Materials Integration, in Conjunction with the 2nd Int. Symposium on Advanced Synthesis and Processing Technology for Materials, ASPT 2011 and the 8th Materials Science School for Young Scientists, KINKEN-WAKATE 2011 - Sendai, Japan
Duration: 2011 Dec 12011 Dec 2

Publication series

NameKey Engineering Materials
Volume508
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Other

OtherInt. Symposium of GCOE: Materials Integration, in Conjunction with the 2nd Int. Symposium on Advanced Synthesis and Processing Technology for Materials, ASPT 2011 and the 8th Materials Science School for Young Scientists, KINKEN-WAKATE 2011
CountryJapan
CitySendai
Period11/12/111/12/2

Keywords

  • Heat-treatment
  • High saturation magnetization
  • Nanocrystalline
  • Powder

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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