Minor Loop Scaling Rules for Finemet Type Soft Magnetic Cores

Varga, L.K.; Kováč, J.

doi:10.12693/aphyspola.126.156

Cited by 10 publications

(6 citation statements)

References 6 publications

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“…However, they can also be applied to analyze phenomena far from the critical point, e.g. related to magnetization phenomena as hysteresis loop [3][4][5][6][7][8] or magnetic viscosity [9,10].…”

Section: Introductionmentioning

confidence: 99%

Fractional Scaling of Magnetic Coercivity in Electrical Steels

Najgebauer

2017

Acta Phys. Pol. A

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Section: Introductionmentioning

confidence: 99%

Fractional Scaling of Magnetic Coercivity in Electrical Steels

Najgebauer

2017

Acta Phys. Pol. A

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“…It suggests that the measurements at low magnetic field strength (about 100 A/m) belong to one universality class, while the other measurements -to another universality class. The existence of different universality classes were reported previously in analysis of power loss in La-containing alloys [33] and minor hysteresis loops in Finmet type cores [45]. …”

Section: Scaling Of Magnetic Anisotropymentioning

confidence: 67%

“…The scaling analysis is also used in materials science, including the study of magnetic material properties such as power loss [30][31][32][33][34], coercivity [35][36][37], magnetic viscosity [38][39][40] or hysteresis loops [41][42][43][44][45].…”

Section: Scaling Analysis Of Magnetic Anisotropymentioning

confidence: 99%

Scaling-based prediction of magnetic anisotropy in grain-oriented steels

Najgebauer¹

2017

Archives of Electrical Engineering

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Abstract:The paper presents the scaling-based approach to analysis and prediction of magnetic anisotropy in grain-oriented steels. Results of the anisotropy scaling indicate the existence of two universality classes. The hybrid approach to prediction of magnetic anisotropy, combining the scaling analysis with the ODFs method, is proposed. This approach is examined in prediction of angular dependencies of magnetic induction as well as magnetization curves for the 111-35S5 steel. It is shown that it is possible to predict anisotropy of magnetic properties based on measurements in three arbitrary directions for φ = 0°, 60° and 90°. The relatively small errors between predicted and measured values of magnetic induction are obtained.

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“…Scaling algorithms have been initially developed to analyze the critical phenomena and phase transitions, but over time, these also found application in the analysis of other phenomena, also in magnetic material science, inter alia in the analysis of hysteresis loops (Kobayashi et al , 2010, 2012; Varga and Kovác, 2014), magnetic viscosity (Mayergoyz et al , 1999) or magnetocaloric effect (Franco and Conde, 2010).…”

Section: Scaling Algorithms In Analysis Of Power Lossesmentioning

confidence: 99%

Scaling algorithms in modelling of power loss in soft magnetic composites

Najgebauer

Szczygłowski

Ślusarek

et al. 2019

COMPEL

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Purpose The purpose of this paper is to examine scaling algorithms in the description and modelling of power loss in soft magnetic composites (SMCs). Design/methodology/approach Three scaling algorithms are examined to determine the most appropriate description of power loss in magnetic composites. The scaling coefficients are estimated in such a way that all measurement data should be collapsed onto a single curve, given in the scaled coordinates. The coefficient estimation is based on a non-linear optimization using the generalized reduced gradient method. The obtained formulae are then used in the power loss modelling. Findings It is revealed that only two-component formulae are suitable for the scaling analysis of power loss because these allow obtaining of the collapse of measurement data. Research limitations/implications This study considers just one type of SMC (Somaloy 700). Further research will be devoted to the verification of the scaling approach to the power loss modelling for other types of magnetic composites. Practical implications The power loss is a basic property of soft magnetic materials, which determines their practical applications. The scaling approach to the power loss modelling gives quite simple models that require a reduced number of measurement data to estimate coefficients. Originality/value The scaling algorithms can be a useful tool in the analysis and designing of magnetic circuits made of SMCs.

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Minor Loop Scaling Rules for Finemet Type Soft Magnetic Cores

Cited by 10 publications

References 6 publications

Fractional Scaling of Magnetic Coercivity in Electrical Steels

Fractional Scaling of Magnetic Coercivity in Electrical Steels

Scaling-based prediction of magnetic anisotropy in grain-oriented steels

Scaling algorithms in modelling of power loss in soft magnetic composites

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