Microstructures of Ta-inserted SmCo5/Fe nanocomposite thick film magnets

Masaru Itakura, Shin ichi Murayama, Masatoshi Mitsuhara, Minoru Nishida, Hiroaki Koga, Masaki Nakano, Hirotoshi Fukunaga

Research output: Contribution to journalArticle

Abstract

Ta-inserted SmCo5/Fe nanocomposite thick film magnets were synthesized by high-speed pulsed laser deposition followed by pulse annealing. The microstructures of the film magnets were characterized by high-resolution scanning electron microscopy and scanning transmission electron microscopy. The as-deposited thick film possessed a multilayered Sm-Co/Ta/α-Fe/Ta structure with amorphous Sm-Co layers and [110]-oriented crystalline α-Fe layers. After pulse annealing, many fine grains of Laves phase TaCo2 were formed, and then the multilayered structure was converted to a granular nanocomposite thick film magnet composed of fine crystalline grains of Sm(Co, Fe)5, α-(Fe, Co), and TaCo2. The volume fractions and grain sizes of hard magnetic Sm(Co, Fe)5, soft magnetic α-(Fe, Co), and TaCo2 were controlled by the thicknesses of the Ta layer, producing a nanocomposite thick film magnet with good exchange coupling.

Original languageEnglish
Pages (from-to)1351-1355
Number of pages5
JournalMaterials Transactions
Volume58
Issue number10
DOIs
Publication statusPublished - 2017

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'Microstructures of Ta-inserted SmCo<sub>5</sub>/Fe nanocomposite thick film magnets'. Together they form a unique fingerprint.

  • Cite this