Title :
High performance RFeCoZrB bonded magnets having low Nd content
Author :
Yoneyama, T. ; Nakamura, H. ; Anan, K. ; Nishiuchi, A. ; Fukuno, A.
Author_Institution :
TDK Corp., Chiba, Japan
fDate :
9/1/1990 12:00:00 AM
Abstract :
The magnetic properties of resin bonded magnets made of rapidly quenched RFeCoZrB alloys with lower than stoichiometric Nd content were investigated. Two kinds of alloys were studied: NdFeCoZrB alloys and MM (misch metal)-based RFeCoZrB alloys. Isotropic resin bonded magnets with (BH)max as high as 13 MGOe were obtained with the NdFeCoZrB alloys. For the MM-based magnets, a (BH)m of 9.5 MGOe was obtained. Both magnets show good magnetizability and high loop squareness
Keywords :
boron alloys; cobalt alloys; demagnetisation; ferromagnetic properties of substances; iron alloys; magnetic hysteresis; magnetisation; neodymium alloys; permanent magnets; zirconium alloys; NdFeCoZrB magnets; demagnetisation curve; density dependence; flux loss; isotropic resin bonded magnets; loop squareness; magnetic properties; magnetisation; misch metal based alloys; rapidly quenched alloys; ribbons; stoichiometric Nd content; temperature dependence; Bonding; Iron alloys; Magnetic field measurement; Magnetic properties; Magnets; Neodymium; Powders; Pulse measurements; Resins; Tellurium;
Journal_Title :
Magnetics, IEEE Transactions on
