Journal
IEEE TRANSACTIONS ON MAGNETICS
Volume 39, Issue 5, Pages 3043-3045Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMAG.2003.815884
Keywords
amorphous glass-covered microwires (AGCW); amorphous wires; inhomogeneities formation-magnetic properties; relationship; thermal treatments
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Positive magnetostrictive Fe77.5Si7.5B15 conventional amorphous wires (CAW) 125 mum in diameter and amorphous glass-covered microwires (AGCW) with the metallic core diameter of 35 mum have been annealed below and above their crystallization temperature, which produces the precipitation of alpha-Fe(Si) phase within the amorphous matrix. The J-H loop and the temperature dependence of the magnetization and the coercive held reveal the presence of two different magnetic phases in the thermally treated samples. The effect of the thermal treatments on the magnetic domain structure in both CAW and AGCW and its influence on their soft magnetic properties is discussed.
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