Title :
High permeability and low core loss of amorphous Fe-Zr-B-M (M=Ni, Nb) alloys in high frequency range
Author :
Kim, H.T. ; Kim, K.Y. ; Noh, T.H. ; Kang, I.K. ; Kim, S.J.
Author_Institution :
Dept. of Metall. Eng., Seoul Nat. Univ., South Korea
fDate :
11/1/1993 12:00:00 AM
Abstract :
The effect of a small addition of Ni or Nb on the magnetic properties of the amorphous Fe83Zr7B10 alloy was investigated. The alloy is considered to have a potential for high-frequency core applications owing to its high effective permeability of more than 2×104 and low coercive field. The addition of Ni or Nb of approximately 0.5-1.0 at.% is effective in increasing the effective permeability in the 10 kHz-1 MHz range and in reducing the saturation magnetostriction and magnetic core loss at frequencies up to 100 kHz. The improvement of the high-frequency soft magnetic properties in Fe-Zr-B-(Ni or Nb) quaternary alloys is attributed to the low magnetostriction and the reduced magnetic domain width
Keywords :
alloying additions; boron alloys; ferromagnetic properties of substances; iron alloys; magnetic cores; magnetic leakage; magnetic permeability; magnetic properties of amorphous substances; magnetostriction; metallic glasses; zirconium alloys; Fe-Zr-B-Nb; Fe-Zr-B-Ni; amorphous Fe83Zr7B10; core applications; high effective permeability; high frequency range; low coercive field; low core loss; magnetic core loss; metallic glass; reduced magnetic domain width; saturation magnetostriction; soft magnetic properties; Amorphous materials; Core loss; Iron alloys; Magnetic cores; Magnetic properties; Magnetostriction; Nickel alloys; Niobium alloys; Permeability; Zirconium;
Journal_Title :
Magnetics, IEEE Transactions on
