Title :
High-coercive Nd-Fe-B sintered magnets diffused with Dy or Tb metal and their applications
Author :
Matchida, K. ; Suzuki, S. ; Kawasaki, T. ; Li, D.-S. ; Kitamon, T. ; Nakamura, K. ; Shimizu, Yukiyo
Author_Institution :
Center for Adv. Sci. & Innovation, Osaka Univ., Japan
Abstract :
Enhanced magnetic properties of Nd-Fe-B sintered magnet pieces treated and high-performance characteristics of small motors mounting them are reported. A well-defined treatment to enhance the coercivity of Nd-Fe-B sintered magnet pieces is developed and is showing great potential for producing high-performance magnets in higher temperatures.
Keywords :
boron alloys; coercive force; ferromagnetic materials; iron alloys; neodymium alloys; permanent magnets; sintering; surface diffusion; NdFeB; coercivity; diffusion; high-coercivity sintered magnets; high-performance characteristics; Additives; Annealing; Coatings; Coercive force; Grain boundaries; Magnetic field measurement; Magnetic properties; Magnets; Remanence; Surface treatment;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1463902
