Title :
Effect of FeGa3 powder addition on the magnetic properties of NdFeB sintered magnets
Author :
Zhao, T.S. ; Kim, Yoon B. ; Jeung, W.Y.
Author_Institution :
Metal Process. Res. Center, Korea Inst. of Sci. & Technol., Seoul, South Korea
fDate :
9/1/1999 12:00:00 AM
Abstract :
NdFeB sintered magnets with the addition of various amounts of FeGa3 powder were prepared by blending during the ball milling process. The magnetic properties and microstructure of the NdFeB magnets were studied. It was found that the addition of 0.1-0.2 wt.% FeCa3 powder increases tile coercivity of the magnets without reducing the remanence. The improvement in coercivity by the addition of FeCa, powder may be related to the formation of a Nd6Fe14-xGax (x≅1) intergranular phase in the magnets
Keywords :
alloying additions; boron alloys; coercive force; crystal microstructure; ferromagnetic materials; gallium alloys; iron alloys; magnetic susceptibility; neodymium alloys; permanent magnets; powder technology; sintering; FeGa3 powder addition; NdFeB sintered magnets; NdFeB-FeGa3; ball milling process; intergranular phase; magnetic properties; microstructure; remanence; Ball milling; Coercive force; Iron; Magnetic properties; Magnets; Microstructure; Neodymium; Powders; Remanence; Tiles;
Journal_Title :
Magnetics, IEEE Transactions on
