Title :
Highest performance of Nd-Fe-B magnet over 55 MGOe
Author_Institution :
R&D Div., Sumitomo Special Metals Co. Ltd., Osaka, Japan
fDate :
9/1/2000 12:00:00 AM
Abstract :
In order to develop high energy Nd-Fe-B magnets, extensive studies of processing technologies have been done. With a new casting technology for Nd-Fe-B alloys, improvement of the preparation of fine powders having a sharp distribution of particle size, and adoption of a special CIP process, we have succeeded in obtaining the high performance 444 kJ/m3 (55.8 MGOe) magnet. Based on these advanced technologies, we have started mass-production of the high performance 400 kT/m3 Nd-Fe-B magnets
Keywords :
boron alloys; casting; ferromagnetic materials; iron alloys; neodymium alloys; particle size; permanent magnets; powder metallurgy; CIP process; Nd-Fe-B; casting technology; fine powders; high energy Nd-Fe-B magnets; highest performance; mass-production; microstructure; particle size; preparation; processing technologies; strip casting; Casting; Iron; Magnetic anisotropy; Magnetic flux; Microstructure; Neodymium; Perpendicular magnetic anisotropy; Powders; Saturation magnetization; Surface resistance;
Journal_Title :
Magnetics, IEEE Transactions on
