Study on magnetic loss properties of ultra-thin nanocrystalline soft magnetic alloy Fe_(73.4)Cu_(0.6)Nb_(3.5)Si_(13.5)B_(9.0)

摘要

The magnetic loss characteristics of ultra-thin nanocrystalline magnetic alloy Fe_(73.4)Cu_(0.6)Nb_(3.5)Si_(13.5)B_(9.0) with 14μm were studied, and compared with conventional nanocrystalline magnetic alloy strip with the thickness of the 26μm. It was found that reducing the thickness of alloy strip could significantly reduce the magnetic loss (P) of the alloys. The frequency magnetic loss (P_f) of nanocrystalline soft magnetic alloy has shown a typical fractal structure, namely, P_f = P_Of~(Df). The strip thickness had a significant impact on the variation of the fractal dimension D_f, the parameter Po, and its work magnetic induction B_m.