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

研究成果: ジャーナルへの寄稿記事

抄録

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.

元の言語英語
ページ(範囲)1351-1355
ページ数5
ジャーナルMaterials Transactions
58
発行部数10
DOI
出版物ステータス出版済み - 1 1 2017

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Nanocomposite films
Thick films
thick films
Magnets
nanocomposites
magnets
microstructure
Microstructure
Annealing
Crystalline materials
Exchange coupling
Scanning electron microscopy
scanning electron microscopy
annealing
Laves phases
High resolution electron microscopy
Pulsed laser deposition
pulses
pulsed laser deposition
Laser pulses

All Science Journal Classification (ASJC) codes

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

これを引用

Microstructures of Ta-inserted SmCo5/Fe nanocomposite thick film magnets. / Itakura, Masaru; Murayama, Shin ichi; Mitsuhara, Masatoshi; Nishida, Minoru; Koga, Hiroaki; Nakano, Masaki; Fukunaga, Hirotoshi.

:: Materials Transactions, 巻 58, 番号 10, 01.01.2017, p. 1351-1355.

研究成果: ジャーナルへの寄稿記事

Itakura, Masaru ; Murayama, Shin ichi ; Mitsuhara, Masatoshi ; Nishida, Minoru ; Koga, Hiroaki ; Nakano, Masaki ; Fukunaga, Hirotoshi. / Microstructures of Ta-inserted SmCo5/Fe nanocomposite thick film magnets. :: Materials Transactions. 2017 ; 巻 58, 番号 10. pp. 1351-1355.
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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.",
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AU - Nakano, Masaki

AU - Fukunaga, Hirotoshi

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