Nd-Fe-B Thick-Film Magnets Prepared by High Laser Energy Density

M. Nakano; K. Fujiyama; T. Yanai; M. Itakura; H. Fukunaga

doi:10.1109/TMAG.2015.2464089

Nd-Fe-B Thick-Film Magnets Prepared by High Laser Energy Density

M. Nakano, K. Fujiyama, T. Yanai, M. Itakura, H. Fukunaga

Materials Physics and Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

An observation of microstructure revealed that a laser-irradiated Nd-Fe-B target under the laser energy density above 10 J/cm² enabled us to prepare isotropic nano-composite thick-film magnets with good magnetic properties due to a dispersed α-Fe + Nd-Fe-B structure. The formation of the structure is attributed to the etching process of a target during a deposition. Moreover, the control of composition in the nano-composite film enhanced the (BH)_max value up to ∼ 130 kJ/m³.

Original language	English
Article number	7175041
Journal	IEEE Transactions on Magnetics
Volume	51
Issue number	11
DOIs	https://doi.org/10.1109/TMAG.2015.2464089
Publication status	Published - Nov 1 2015

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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AU - Itakura, M.

AU - Fukunaga, H.

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AB - An observation of microstructure revealed that a laser-irradiated Nd-Fe-B target under the laser energy density above 10 J/cm2 enabled us to prepare isotropic nano-composite thick-film magnets with good magnetic properties due to a dispersed α-Fe + Nd-Fe-B structure. The formation of the structure is attributed to the etching process of a target during a deposition. Moreover, the control of composition in the nano-composite film enhanced the (BH)max value up to ∼ 130 kJ/m3.

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