High-Coercivity Fe-Co Nanoparticles Prepared by Pulsed Arc Plasma Deposition

Daiki Horiyama, Masashi Matsuura, Tetsuro Yamamoto, Nobuki Tezuka, Satoshi Sugimoto

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Fe-Co nanoparticles were prepared on SiO2 nanoparticles by a pulsed arc plasma deposition (APD) method and the influence of discharge count during APD on the microstructure and magnetic properties of the nanoparticles was investigated. When the discharge count was 300 shots, the average particle size (d50) of Fe-Co was 3.7nm and an unusually high coercivity (Hc) of 300 kA•m-1 was obtained. The average particle size increased and the coercivity decreased with increasing discharge count. Fe-Co nanoparticles deposited on C nanoparticles using a discharge count of 300 shots exhibited a lower coercivity than that of Fe-Co nanoparticles deposited on SiO2 nanoparticles.

Original languageEnglish
Pages (from-to)207-211
Number of pages5
JournalMaterials Transactions
Volume57
Issue number2
DOIs
Publication statusPublished - 2016

Keywords

  • Coercivity
  • Iron-cobalt nanoparticles
  • Pulsed arc plasma deposition

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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