Title :
The effect of magnetic field annealing on magnetic properties in ultrathin Fe-based nanocrystalline alloys
Author :
Park, J.Y. ; Suh, S.J. ; Kim, K.Y. ; Noh, T.H.
Author_Institution :
Dept. of Metall. Eng., Sungkyunkwan Univ., Suwon, South Korea
fDate :
9/1/1997 12:00:00 AM
Abstract :
Ultrathin Fe78Al4B12Nb5Cu1 and Fe83B9Nb7Cu1 nanocrystalline ribbon alloys below 10 μm in thickness were annealed in transverse magnetic field, and then the high-frequency soft magnetic properties and their compositional effect were investigated. Very high effective permeability and excellent magnetic core loss characteristics in MHz range were obtained for both alloys after optimum annealing. However, the Al-added alloy was more sensitive to the magnetic field annealing and much improved soft magnetic properties in the high frequency range were revealed
Keywords :
aluminium alloys; amorphous magnetic materials; boron alloys; coercive force; copper alloys; ferromagnetic materials; magnetic annealing; magnetic cores; magnetic hysteresis; magnetic leakage; magnetic permeability; metallic glasses; niobium alloys; soft magnetic materials; Fe78Al4B12Nb5Cu1 ; Fe83B9Nb7Cu1; MHz range; compositional effect; high-frequency soft magnetic properties; magnetic core loss characteristics; magnetic field annealing; magnetic properties; optimum annealing; ribbon alloys; ultrathin Fe-based nanocrystalline alloys; very high effective permeability; Aluminum alloys; Annealing; Copper alloys; Iron alloys; Magnetic cores; Magnetic fields; Magnetic losses; Magnetic properties; Niobium alloys; Permeability;
Journal_Title :
Magnetics, IEEE Transactions on
