Magnetic Spectra of Soft Magnetic Composites Based on Fe-Si-Cr-B Amorphous and Carbonyl-Iron Powders

Meng, Q.; Yang, Feifei; Wu, Xiaojie; Xu, Tao; Zhou, Menglong; Guan, Weizheng; Su, Hailin; Han, Yu; Du, Youwei

doi:10.1007/s10948-019-5078-4

Cited by 16 publications

(2 citation statements)

References 27 publications

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“…The Fröhlich-Kennelly equation [25] was used to estimate µ p resulting in β = 0.83. Note that a similar value for β was reported in [25] β = 0.86 and [26]…”

Section: Simulationssupporting

confidence: 77%

Enhancing magnetorheology through the directed self-assembly under toggled magnetic fields in saturation

Camacho¹,

Morillas²,

Vicente³

2021

Smart Mater. Struct.

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The yield stress in magnetorheological (MR) fluids is enhanced through their directed self-assembly under toggled (unsteady) magnetic fields. Experimental yield stress data are compared to previous experiments from the literature involving continuous (DC) fields in a wide range of particle concentrations at magnetic saturation using a double-gap magnetorheometer. Data generated with toggled fields are closer to theoretical predictions than conventional DC fields suggesting that generated structures under toggled fields are gap-spanning and closer to minimum energy state configurations. Experiments are in good agreement with particle level simulations.

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“…The Fröhlich-Kennelly equation [25] was used to estimate µ p resulting in β = 0.83. Note that a similar value for β was reported in [25] β = 0.86 and [26]…”

Section: Simulationssupporting

confidence: 77%

Enhancing magnetorheology through the directed self-assembly under toggled magnetic fields in saturation

Camacho¹,

Morillas²,

Vicente³

2021

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

“…Therefore, researchers have proposed different strategies to enhance the high-frequency properties of ASMCs. These include introducing soft magnetic metal particles, optimizing particle size distribution, and reducing the thickness of insulating layers between particles. , Additionally, the temperature stability of ASMCs is crucial for their practical application . The composition can be optimized, the annealing process controlled, and rare earth elements introduced to improve the temperature stability of ASMCs …”

Section: Introductionmentioning

confidence: 99%

Magnetic Properties of High DC Bias Performance Fe-Si-B-C-Cr Amorphous Soft Magnetic Composites

Shen,

Wang,

Liu

et al. 2023

ACS Appl. Electron. Mater.

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The present study investigates three types of Fe-Si-B-C-Cr non-crystalline magnetic powder and their effects on the magnetic properties of soft magnetic composites. Specifically, the study examines the impact of heat treatment temperature and particle size distribution. The results indicate a positive correlation between the size of the magnetic powder particles and saturation magnetization. Changes in heat treatment temperature similarly affected the magnetic properties of the three soft magnetic composites, with the optimal temperature for heat treatment determined to be 460 °C. Nonlinear fitting was used to separate the total loss, and it was found that non-crystalline soft magnetic composites made with small-sized magnetic powder exhibited lower eddy current loss under MHz magnetic field conditions. The relaxation phenomenon observed in the hysteresis loop with increasing frequency under a dynamic magnetic field explains the mechanism of power loss variation in soft magnetic composite materials with respect to magnetic field frequency and magnetic induction intensity. A high-performance non-crystalline soft magnetic composite with a power consumption of 372 kW/m3 was obtained at a magnetic induction intensity of 20 mT and a frequency of 1 MHz. Which demonstrated excellent stability under MHz magnetic field conditions as well as excellent DC bias characteristics, with a relative permeability above 90% under a DC bias magnetic field of 7.96 kA/m.

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The enhanced magnetic properties of FeSiCr powder cores composited with carbonyl iron powder

Gong

Dong

Huang

et al. 2021

J Mater Sci: Mater Electron

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Magnetic Spectra of Soft Magnetic Composites Based on Fe-Si-Cr-B Amorphous and Carbonyl-Iron Powders

Cited by 16 publications

References 27 publications

Enhancing magnetorheology through the directed self-assembly under toggled magnetic fields in saturation

Enhancing magnetorheology through the directed self-assembly under toggled magnetic fields in saturation

Magnetic Properties of High DC Bias Performance Fe-Si-B-C-Cr Amorphous Soft Magnetic Composites

The enhanced magnetic properties of FeSiCr powder cores composited with carbonyl iron powder

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