Prospects for nanoparticle-based permanent magnets

B. Balamurugan, D. J. Sellmyer, G. C. Hadjipanayis, R. Skomski

Research output: Contribution to journalArticlepeer-review

77 Scopus citations

Abstract

Magnetic nanoparticles smaller than ∼15 nm in diameter and with high magnetocrystalline anisotropies K1 ≥ 1 MJ m-3 can be used as building blocks for next-generation permanent magnets. Advances in processing steps are discussed, such as self-assembly, alignment of the easy axes and appropriate nanostructuring that will enable the fabrication of densely packed nanoparticle assemblies with improved permanent-magnet properties. This study also proposes an idealized nanocomposite structure for nanoparticle-based future permanent magnets with enhanced energy products.

Original languageEnglish (US)
Pages (from-to)542-547
Number of pages6
JournalScripta Materialia
Volume67
Issue number6
DOIs
StatePublished - Sep 2012

Keywords

  • Exchange-coupled nanocomposites
  • Nanoparticle building blocks
  • Permanent-magnets
  • Processing
  • Synthesis

ASJC Scopus subject areas

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

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