Title :
Sm2Fe17N3 magnet powder made by reduction and diffusion method
Author :
Kawamoto, Atsushi ; Ishikawa, Takashi ; Yasuda, Shinichi ; Takeya, Kaname ; Ishizaka, Kazutoshi ; Iseki, Takashi ; Ohmori, Kenji
Author_Institution :
Sumitomo Metal Min. Co. Ltd., Ichikawa, Japan
fDate :
9/1/1999 12:00:00 AM
Abstract :
High performance Sm2Fe17N3 magnet powder is developed by a reduction and diffusion method. Typical remanence, coercivity and maximum energy product obtained are 1.40 T, 1.13 T and 323 kJ/m3, respectively. Decreasing samarium content, oxygen content and the amount of α-Fe are found to be the important factors to realize high energy product
Keywords :
coercive force; diffusion; ferromagnetic materials; iron alloys; magnetic particles; nitridation; permanent magnets; powder metallurgy; reduction (chemical); remanence; samarium alloys; stoichiometry; α-Fe; 1.13 T; 1.40 T; Sm2Fe17N3; Sm2Fe17N3 magnet powder; coercivity; high energy product; high performance Sm2Fe17N3 magnet powder; maximum energy product; oxygen content; reduction; reduction-diffusion method; remanence; samarium content; Calcium; Coercive force; Iron; Magnetic anisotropy; Magnetization; Neodymium; Perpendicular magnetic anisotropy; Powders; Samarium alloys; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
