Title :
Large Barkhausen and Matteucci effects in FeCoSiB, FeCrSiB, and FeNiSiB amorphous wires
Author :
Mohri, K. ; Humphrey, F.B. ; Kawashima, K. ; Kimura, K. ; Mizutani, M.
Author_Institution :
Dept. of Electr. Eng., Nagoya Univ., Japan
fDate :
9/1/1990 12:00:00 AM
Abstract :
The mechanism of the sensitive and stable large Barkhausen effects of as-cast amorphous magnetostrictive wires having three composition systems was investigated using measured values of stress-induced anisotropy constant saturation magnetostriction, residual internal stress, and MH hysteresis loop squareness Mr/M s. The entire composition range of FeCo is compared to FeCr with up to 10 at.% and FeNi with Ni up to 12 at.%. Matteucci effects were also investigated in magnetostrictive and nonmagnetostrictive amorphous wires magnetized with a longitudinal AC field, AC wire current, or AC field perpendicular to the wire axis
Keywords :
Barkhausen effect; Matteucci effect; boron alloys; chromium alloys; cobalt alloys; internal stresses; iron alloys; magnetic hysteresis; magnetic properties of amorphous substances; magnetostriction; nickel alloys; silicon alloys; FeCoSiB; FeCrSiB; FeNiSiB; MH hysteresis loop squareness; Matteucci effects; as-cast amorphous magnetostrictive wires; residual internal stress; stable large Barkhausen effects; stress-induced anisotropy constant saturation magnetostriction; Amorphous magnetic materials; Amorphous materials; Anisotropic magnetoresistance; Internal stresses; Magnetic anisotropy; Magnetostriction; Perpendicular magnetic anisotropy; Saturation magnetization; Stress measurement; Wires;
Journal_Title :
Magnetics, IEEE Transactions on
