Sandpile simulation of Barkhausen noise in soft magnetic materials

1991 ◽  
Vol 97 (1-3) ◽  
pp. 198-204 ◽  
Author(s):  
O. Geoffroy ◽  
J.L. Porteseil
Keyword(s):  
Magnetic Materials ◽  
Soft Magnetic Materials ◽  
Barkhausen Noise ◽  
Soft Magnetic

Loss Separation Model: A Tool for Improvement of Soft Magnetic Materials

2016 ◽  
Vol 869 ◽  
pp. 596-601 ◽  
Author(s):  
Marcos Flavio de Campos
Keyword(s):  
Magnetic Material ◽  
Magnetic Materials ◽  
High Frequency ◽  
Eddy Currents ◽  
Soft Magnetic Materials ◽  
Barkhausen Noise ◽  
Magnetic Barkhausen Noise ◽  
Soft Magnetic ◽  
Physical Reasoning ◽  
Separation Model

Loss separation has fundamental importance for optimizing the magnetic material for a given frequency of operation. The loss separation model assumes the existence of two main terms: one due to the hysteresis at the quasi-static situation with frequency less than 0.01 Hz and another dynamic, due to high frequency eddy currents. In this study, it is discussed the physical reasoning behind the loss separation model. Magnetic Barkhausen Noise can be a valuable tool for better understanding the physics of loss separation.

Barkhausen Noise Measurements in Amorphous and Nanocrystalline FINEMET Type Alloys

2007 ◽  
Vol 537-538 ◽  
pp. 291-296
Author(s):  
Z. Balogh ◽  
Lajos Daróczi ◽  
Z. Erdélyi ◽  
S. Szabó ◽  
R. Juhász ◽  
...  
Keyword(s):  
Magnetic Materials ◽  
Critical Exponents ◽  
Probability Distributions ◽  
Soft Magnetic Materials ◽  
Barkhausen Noise ◽  
Observable Effect ◽  
Soft Magnetic ◽  
Noise Measurements

Barkhausen noise properties of amorphous and nanocrystallized FINEMET type soft magnetic materials are investigated. It is obtained that the amorphous-nanocrystalline tranformation has a well observable effect on both the root main square, RMS, values and the critical exponents of the probability distributions of peak heights and durations.

Modeling of the Temperature Dependence of Soft Magnetic Materials

2020 ◽  
Author(s):  
Gereon Goldbeck ◽  
Gerd Bramerdorfer ◽  
Wolfgang Amrhein ◽  
Josef Hinterdorfer ◽  
Bernhard Weis
Keyword(s):  
Temperature Dependence ◽  
Magnetic Materials ◽  
Soft Magnetic Materials ◽  
Soft Magnetic

scholarly journals Effect of the Temperature on the Magnetic and Energetic Properties of Soft Magnetic Composite Materials

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4400
Author(s):  
Luca Ferraris ◽  
Fausto Franchini ◽  
Emir Pošković ◽  
Marco Actis Grande ◽  
Róbert Bidulský
Keyword(s):  
Magnetic Materials ◽  
Eddy Currents ◽  
Electrical Machines ◽  
Soft Magnetic Materials ◽  
Magnetic Composite ◽  
Soft Magnetic ◽  
Soft Magnetic Composite ◽  
Magnetic Performance ◽  
Magnetic Circuits ◽  
Energetic Characterization

In recent years, innovative magnetic materials have been introduced in the field of electrical machines. In the ambit of soft magnetic materials, laminated steels guarantee good robustness and high magnetic performance but, in some high-frequency applications, can be replaced by Soft Magnetic Composite (SMC) materials. SMC materials allow us to reduce the eddy currents and to design innovative 3D magnetic circuits. In general, SMCs are characterized at room temperature, but as electrical machines operate at high temperature (around 100 °C), an investigation analysis of the temperature effect has been carried out on these materials; in particular, three SMC samples with different binder percentages and process parameters have been considered for magnetic and energetic characterization.

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