Sarkar, Partha and Mallick, A B and Roy, Rajat K and Panda, A K and Mitra, A (2012) Structural and Giant Magneto-impedance properties of Cr-incorporated Co-Fe-Si-B amorphous microwires. Journal of Magnetism and Magnetic Materials, 324 (8). pp. 1551-1556.
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The investigation is focused on the effect of Cr incorporation for Co/Fe in (Co(0.5)Fe(0.5))(78-x)Cr(x)Si(8)B(14) (x=0-12) amorphous microwires of 110 mu m diameter prepared by in-water quenching technique. The rise in crystallization onset T(X1) with Cr addition revealed the elemental contribution against devitrification and a consequent thermal stability. Cr is unfavorable towards ferromagnetic ordering leading to a linear drop in Curie temperature T(ca) with its rise in concentration. The presence of low Cr content upto Cr-4 at.% has been effective in drastically improving the Giant magneto-impedance (GMI) property. Cr content in the range of 4 < X < 10 has low magnetostriction and maximum field sensitivity in the as-quenched state. The GMI properties are further improved after annealing treatment. High content of Cr > 10 is found to be deleterious towards GMI behavior and its consequent application as sensor material. (C) 2011 Elsevier B.V. All rights reserved.
|Uncontrolled Keywords:||Microwires; Amorphous; Giant magneto-impedance; Magnetostriction; Crystallization|
|Divisions:||Material Science and Technology|
|Deposited By:||Dr. A K Sahu|
|Deposited On:||16 Feb 2012 17:33|
|Last Modified:||16 Feb 2012 17:33|
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