Magnetic Properties of Iron Nitride Foils Prepared by Nitrogen Plasma Irradiation

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概要

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• We investigated the saturation magnetization and structure of iron foils treated by nitrogen plasma irradiation. The surface of each nitrided foil was removed step by step by electropolishing, and the saturation magnetization of the nitrided foil was then measured. X-ray diffraction patterns were taken from the electropolished surface at each step. Various iron nitrides were formed at all depths of foils nitrided for 5 hours or more, and their quantity increased with the nitriding time. The outermost region of the surface layer irradiated with nitrogen plasma was composed of γ'-Fe_4N and α'-martensite. The saturation magnetization of α'-martensite in a foil nitrided for 13 hours was 223 emu/g. The nitrogen concentration of ε-Fe_3N, and the inner region was composed of α'-martensite in the foil irradiated with nitrogen plasma was 0.5 atomic percent.

• 社団法人日本磁気学会の論文
• 1999-01-20

著者

• Niizuma K.

  College Of Indusrial Technology Nihon University

• Utsushikawa Y.

  College of Indusrial Technology, Nihon University

関連論文

• Magnetic Properties of Iron Nitride Foils Prepared by Nitrogen Plasma Irradiation

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