Abstract:Naked Co 68.25 Fe 4.5 Si 12.25 B 15 metal fibers with diameter from 25 μm to 100 μm are produced by melt extraction method. Significant diameter dependence of magnetic properties is studied. Their microstructure and magnetic properties of hysteresis loops and giant magneto impedance (GMI) effect at frequencies from 0.1MHz to13MHz are investigated. The results show that the coercivity increases with the diameter of fibers and the GMI effect is best in fiber with a diameter of 35μm. It is found that the cooling … Show more
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