Microstructure and Magnetic Properties of the Aerosol-Deposited Sm-Fe-N Thick Films

Tomohito Maki, Satoshi Sugimoto, Toshio Kagotani, Koichiro Inomata, Jun Akedo

Research output: Contribution to journalArticle

Abstract

In this study, the relationship among magnetic properties, Aerosol Deposition (AD) conditions and microstructures in Sm-Fe-N AD films were investigated. The maximum thickness of 145 μm was obtained in the AD conditions of gas flow rate (gfr) = 6 L/min for 10 min. The density of Sm-Fe-N films were in the range of 5.43-6.24 g/cm3, which were 71-81 % of the X-ray density of the Sm2Fe17N3 compound reported (7.67 g/cm3). The Sm-Fe-N AD films showed remanence in the range of 0.38-0.42 T, which were 61-68 % of that of Sm-Fe-N host powder (0.62 T). The coercivities increased from 1.16 to 1.74-1.79 T after the deposition because the grain size decreased from 1.94 to 0.32 μm.

Original languageEnglish
Pages (from-to)887-891
Number of pages5
JournalIEEJ Transactions on Fundamentals and Materials
Volume124
Issue number10
DOIs
Publication statusPublished - 2004 Jan 1

Keywords

  • aerosol deposition method
  • coercivity
  • grain size
  • microstructure
  • samarium iron nitride
  • thick film magnet

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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