DocumentCode
801616
Title
Magnetic Properties of Sm2 Fe17 Nx
Author
Iriyama, T. ; Kobayashi, K. ; Kato, H. ; Nakagawa, Y.
Author_Institution
Asahi Chemical Industry Co., Ltd.
Volume
7
Issue
12
fYear
1992
Firstpage
924
Lastpage
930
Abstract
Sm2 Fe17 Nx (x=3), of purity 95 vol%, was obtained by nitrogenation of Sm2 Fe17 alloy using a mixture of NH3 (0.35 atm) and H2 (0,65 atm) gases. The saturation magnetization 4¿I, was 15.5 kG, and the anisotropy field Ha was found to be 220 kOe. Aligned Sm2 Fe17 N3 powders with an average grain size of 3 ¿m showed a (BH)max value of 35 MGOe, computed assuming that the powder was compressed to its true density, i.e. a 100% packing ratio. The effects of the presence of an unnitrogenated phase and an SmFe3 Ny phase on the magnetic properties of the compressed powder magnets are also discussed.
Keywords
Atmosphere; Gases; Hydrogen; Iron; Magnetic materials; Magnetic properties; Magnetics Society; Magnets; Mechanical factors; Powders;
fLanguage
English
Journal_Title
Magnetics in Japan, IEEE Translation Journal on
Publisher
ieee
ISSN
0882-4959
Type
jour
DOI
10.1109/TJMJ.1992.4565538
Filename
4565538
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