Frequency and peak magnetization dependence of the coercive field in Fe-Ni-B-Si amorphous alloys

The Concept of Scaling Analysis Describing the Properties of Soft Magnets

“…Moreover, the value of amplitude H 2 in both tested cases has been several times lower compared to the value of amplitudes H 0 and H 1 . Thereby, relation Equation 9 was limited to only two terms bounding with H 0 and H 1 , which is a good agreement with the dependence of the coercive field presented in [20][21][22]. The medium value of percentage errors between the scaled measurement points and theoretical predictions is about 4.29% for the 50% Ni-Fe alloy and 2.85% for 6.5% Si-Fe steel, whereas the maximum value of these errors does not exceed 8.24% and 13.46% for single points respectively.…”

“…Coercive field H c is an important property of soft magnets. It is usually considered as a function of frequency and induction [20][21][22]. The frequency dependence of the coercive field commonly used for modelling the properties of soft magnets has the following form: Fig.…”

The modified procedures in coercivity scaling

“…This form of coercivity dependence was determined from our measurements. It was also proposed in [13]. After the scaling transformations, the following relationship of scaled coercivity was proposed: (3) where H 0 , H 1 , H 2 are amplitudes, while δ and ε are so-called scaling exponents.…”