Structural and Giant Magneto-impedance properties of Cr-incorporated Co-Fe-Si-B amorphous microwires |
| |
Authors: | Partha SarkarA. Basu Mallick R.K. RoyA.K. Panda A. Mitra |
| |
Affiliation: | a NDE & Magnetic Materials Group, CSIR-National Metallurgical Laboratory, Jamshedpur 831007, India b Department of Metallurgy and Materials Engineering, Bengal Engineering and Science University, Shibpur, Howrah 711103, India |
| |
Abstract: | The investigation is focused on the effect of Cr incorporation for Co/Fe in (Co0.5Fe0.5)78−xCrxSi8B14 (x=0-12) amorphous microwires of 110 μm diameter prepared by in-water quenching technique. The rise in crystallization onset TX1 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 Tca 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. |
| |
Keywords: | Microwires Amorphous Giant magneto-impedance Magnetostriction Crystallization |
本文献已被 ScienceDirect 等数据库收录! |