Title :
Magnetic properties of Sm2Fe17Nx powder and bonded magnet
Author :
Suzuki, Shunji ; Miura, Toshihiko
Author_Institution :
Res. & Dev. Center, Minebea Co. Ltd., Shizuoka, Japan
fDate :
3/1/1992 12:00:00 AM
Abstract :
Sm2Fe17Nx powders were prepared through metallurgical processes such as melting, casting, pulverizing, and gas nitrogenation. Epoxy resin and zinc-bonded magnets were prepared from the powder by a compression molding process. The magnetic properties of magnetically aligned Sm2Fe17Nx powder were (BH)max=170 kJ/m3 (21.4 MG-Oe), Br=1.20 T, and HcJ=547 kA/m (6.87 kOe). Those of an epoxy-bonded magnet were (BH)max =103 kJ/m3 (13.0 MG-Oe) and Br=0.835 T. H cJ values in excess of 2 MA/m (25 kOe) were observed in the case of a zinc-bonded magnet
Keywords :
X-ray diffraction examination of materials; coercive force; demagnetisation; ferromagnetic properties of substances; heat treatment; iron alloys; magnetic hysteresis; magnetic properties of fine particles; permanent magnets; powder metallurgy; remanence; samarium alloys; 0.835 T; 1.2 T; Sm2Fe17Nx powder; X-ray diffraction; casting; compression molding process; demagnetisation; epoxy-bonded magnet; gas nitrogenation; heat treatment; hysteresis loop; magnetic properties; magnetically aligned powder; melting; metallurgical processes; particle size dependence; pulverizing; Atmospheric measurements; Bonding; Iron; Magnetic anisotropy; Magnetic properties; Nitrogen; Perpendicular magnetic anisotropy; Powders; Samarium; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
