Title :
Effect of order-disorder transition on magnetic properties of rapidly solidified high-silicon iron ribbons
Author :
Degauque, J. ; Bouchara, D. ; Fagot, M. ; Bras, J. ; Redoules, J.P. ; Chomel, Ph ; Astie, B.
Author_Institution :
INSA, Toulouse, France
fDate :
9/1/1990 12:00:00 AM
Abstract :
The effect of ordering on the soft magnetic properties of 6.5% silicon-iron ribbons obtained by rapid solidification is studied. The atomic order cannot be prevented by the fast cooling. It is shown that isothermal aging at 700°C induces a small decrease in coercive force and hysteresis losses, while aging at 500°C induces an increase in these parameters. The magnetic evolutions are corroborated by Lorentz microscopy observations. The values obtained and the observations suggest a weak individual interaction, which may be due to local variation of exchange and anisotropy energy
Keywords :
coercive force; iron alloys; magnetic hysteresis; magnetic properties of substances; phase transformations; silicon alloys; 500 degC; 700 degC; Fe; Lorentz microscopy; Si; Si-Fe ribbons; anisotropy energy; atomic order; coercive force; fast cooling; hysteresis losses; isothermal aging; magnetic evolutions; order-disorder transition; rapid solidification; soft magnetic properties; Aging; Coercive force; Cooling; Isothermal processes; Magnetic anisotropy; Magnetic force microscopy; Magnetic hysteresis; Magnetic properties; Perpendicular magnetic anisotropy; Soft magnetic materials;
Journal_Title :
Magnetics, IEEE Transactions on
