Challenges in optimizing the magnetic properties of bulk soft magnetic materials

doi:10.1016/j.jmmm.2008.03.058

Cited by 15 publications

(2 citation statements)

References 12 publications

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“…The choice of the material for the study was motivated by the following factors: • grain-oriented electrical steel covers an important fraction (around 16 %) of the soft magnetic materials used in practical applications [95]; it is the material of choice for electrical engineering working on transformers; • for grain-oriented steel the hysteresis loop is steep and narrow, thus a description based on the hyperbolic tangent function might be useful for its representation; • the internal structure of grain-oriented steel consists mainly of Bloch walls. For this highly textured material, the choice of parabolic function R(m) is justified.…”

Section: Modellingmentioning

confidence: 99%

On some approaches to model reversible magnetization processes

Chwastek¹,

Baghel²,

Ram³

et al. 2018

J. Phys. D: Appl. Phys.

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This paper focuses on the problem of how reversible magnetization processes are taken into account in contemporary descriptions of hysteresis curves. For comparison, three versions of the phenomenological T(x) model based on hyperbolic tangent mapping are considered. Two of them are based on summing the output of the hysteresis operator with a linear or nonlinear mapping. The third description is inspired by the concept of the product Preisach model. Total susceptibility is modulated with a magnetization-dependent function. The models are verified using measurement data for grain-oriented electrical steel. The proposed third description represents minor loops most accurately.

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Section: Modellingmentioning

confidence: 99%

On some approaches to model reversible magnetization processes

Chwastek¹,

Baghel²,

Ram³

et al. 2018

J. Phys. D: Appl. Phys.

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“…This percentage increases substantially as the operating frequency (f ) and excitation induction (B m ) of the electromagnetic devices increase [3]. Excessive losses directly obstruct the miniaturization and high-frequency development of electronic devices [4]. Therefore, it is urgent to reduce the energy loss of soft magnetic materials to save energy [5].…”

Section: Introductionmentioning

confidence: 99%

The effect of volume concentration on the properties of easy-plane FeSiAl composites working in high frequency band

Zhang¹,

Huang²,

Wang³

et al. 2023

Phys. Scr.

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In this study, to investigate the effect of volume concentration on core loss in the high frequency band (~MHz), easy-plane soft magnetic composites (SMCs) of FeSiAl particles with different volume concentrations were prepared successfully by magnetic field orientation. The permeability of the SMCs was decomposed into the domain wall component and the spin component and was well simulated. The core loss was successfully decomposed into hysteresis loss, eddy current loss and excess loss. It was shown that the permeability of the SMCs was continuously improved as the volume concentration of FeSiAl in the SMCs increased, while the core loss decreased first and then increased due to the different performances of the hysteresis loss, eddy current loss, and excess loss. Samples with a permeability of 310 exhibited the lowest core loss of 399 kW/m3 (f=3 MHz, 10 mT). The results indicated that there is an optimal volume concentration at which SMCs have a relatively high permeability and minimum core loss.

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