Applications of Nanocrystalline Soft Magnetic Fe-M-B (M = Zr, Nb) Alloys "NANOPERM®"

Akihiro Makino, Takashi Hatanai, Yutaka Naitoh, Teruo Bitoh, Akihisa Inoue, T. Masumoto

Research output: Contribution to journalArticlepeer-review

97 Citations (Scopus)


This paper reviews our recent results on some applications of new nanocrystalline soft magnetic Fe-M-B (M = Zr, Hf, Nb) alloy ribbons "NANOPERM®." NANOPERM® has a structure consisting of nanoscale bcc grains and a small amount of an intergranular amorphous layer. NANOPERM® exhibits high saturation magnetic flux density above 1.5 T as well as excellent soft magnetic properties. Furthermore, its remanence ratio can be controlled according to the demands of various applications. Toroidal cores with gap, common mode choke coils, ISDN (integrated service digital network) interface pulse transformers and flux gate magnetic detectors made of "NANOPERM®" have been developed. The excellent characteristics of the components were confirmed in trial. NANOPERM® is therefore expected to be used widely in the magnetic application field.

Original languageEnglish
Pages (from-to)3793-3798
Number of pages6
JournalIEEE Transactions on Magnetics
Issue number5
Publication statusPublished - 1997 Sept
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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