The characteristic of high magnetic flux density Fe-based amorphous soft magnetic powders and consolidated magnetic cores

Isamu Otsuka, Yu Maeta, Kazushi Ishiyama, Masaaki Yagi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Fe-based amorphous powders with high magnetic flux density were fabricated in an extremely high cooling rate of over 106K/s by SWAP. The composition of the alloys studied were FexSiyB 1-y)98-xC2 {x = 73-85(at%), y = 0.2-0.9 (at%)}. The saturation flux density Bs increased with increasing iron content. For Fe83(Si0.3B0.7)15C2, the Bs value was 1.64 T, which is 31 % higher than that of our previously developed (Fe0.97Cr0.03)76(Si0.5B 0.5)22C2 alloy. Furthermore, the Fe 81(Si0.3B0.7)17C2 powder core exhibited superior magnetic properties compared with our previously developed Fe76 system powder core. The core loss at 100 kHz for Bm = 0.1 T was 450kW/m3. This value was comparable to that of Fe 76 system powder core with a lower flux density.

Original languageEnglish
Pages (from-to)563-567
Number of pages5
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume56
Issue number9
DOIs
Publication statusPublished - 2009 Sep

Keywords

  • Amorphous alloy powder
  • Amorphous powder core
  • High magnetic flux density
  • Soft-magnetic
  • Spinning water atomization

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

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