粉体および粉末冶金
Online ISSN : 1880-9014
Print ISSN : 0532-8799
ISSN-L : 0532-8799
研究論文
アークプラズマ蒸着法による複合磁性ナノ粒子の作製
松浦 昌志五十嵐 拓也山本 鉄郎手束 展規杉本 諭
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2017 年 64 巻 7 号 p. 364-371

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In this study, magnetic nanoparticles were prepared by the arc plasma deposition (APD). The monodisperse Fe-Pt nanoparticles (5~10 nm) were obtained on the surface of SiO2 nanoparticles. Deposition voltage and shot counts can control particle size of Fe-Pt. The coercivity of Fe-Pt/SiO2 composite particles increased after annealing at 300°C, and the maximum coercivity value reached to 583 kA·m−1. In the selected area diffraction pattern obtained by transmission electron microscopy (TEM), amount of the order L10 phase was increased by annealing at 300°C. The Mn-Bi nanoparticles (5~20 nm) were also prepared by APD. The Mn-Bi was deposited on Fe nanoparticles, which were prepared by hydrogen-plasma-meta-reaction (HPMR) method, and monodisperse Mn-Bi particles were obtained on the Fe nanoparticles. Consequently, the arc plasma deposition is effective process to prepare composite magnetic nanoparticles.

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© 2017 一般社団法人粉体粉末冶金協会
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