NiZnCu-ferrite coated iron powder for soft magnetic composite applications

Sunday, Katie Jo; Taheri, Mitra L.

doi:10.1016/j.jmmm.2018.05.030

Cited by 39 publications

(4 citation statements)

References 10 publications

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“…In order to mitigate magnetic loss in SMCs cores, two approaches are often used in practice. One is to reduce the eddy current loss of SMCs by increasing the insulation between different soft metallic particles, including the surface oxidation, [5][6][7] insulating coating, [8][9][10][11][12][13][14][15] and the addition of various insulating agents, [16][17][18][19][20][21][22][23][24] which is proved to be an effective method to reduce magnetic loss in SMCs. The other is to reduce the hysteresis loss by increasing the permeability of SMCs [25,26] at the expense of deteriorating high frequency performance.…”

Section: Introductionmentioning

confidence: 99%

Hysteresis loss reduction in self-bias FeSi/SrFe₁₂O₁₉ soft magnetic composites

Feng

et al. 2022

Chinese Phys. B

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The magnetic field provided by magnetized SrFe12O19 particles in FeSi/SrFe12O19 composites is used to replace the applied transverse magnetic field, which successfully reduces the magnetic loss of the composites with minor reduction of permeability. This magnetic loss reduction mainly comes from the decrease in hysteresis loss, while the eddy current loss is basically unaffected. The hysteresis loss reduction in magnetized composites is believed to be due to the decrease in domain wall displacement caused by the increase in the average magnetic domain size in a DC magnetic field. This is an effective method for reducing the magnetic loss of soft magnetic composites with wide application potential, and there is no problem of increasing the cost and the volume of the magnetic cores.

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Section: Introductionmentioning

confidence: 99%

Hysteresis loss reduction in self-bias FeSi/SrFe₁₂O₁₉ soft magnetic composites

Feng

et al. 2022

Chinese Phys. B

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“…As insulator materials, different types of thermosetting polymers such as epoxy resins, Coatings 2022, 12, 1527 2 of 19 polyesters and acrylic resins have been used [1,2]. In addition, inorganic coatings have been intensively used, with the most common of these being Al 2 O 3 , SiO 2 , ZrO 2 , MgO, FePO 4 or other soft magnetic ferrites [6][7][8][9][10][11][12]. A wide variety of methods have been implemented to properly cover the ferromagnetic phase with the insulating layers, such as surface oxidation, sol-gel, hydrothermal, mixing, mechanical milling and many others [5].…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal Deposition of ZnO Layer on Fe-Based Amorphous Fibres Used for the Preparation of Cold Sintered Fibre-Based Soft Magnetic Composites

et al. 2022

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This paper presents findings on the influence of hydrothermal deposition processing parameters (precursor concentration and deposition duration) on the characteristics of ZnO layers deposited on the surface of amorphous Fe-based fibres. The characteristics of the coated fibres, especially the deposited layer, were investigated from structural, morphological, chemical, thermal and magnetic points of view. It was found that the use of a zinc acetate-based solution of 0.05 M concentration and a deposition duration of 24 h leads to a continuous, thin and adherent layer of ZnO on the surface of the fibres. The thickness of the ZnO layer is 450–500 nm, as shown by TEM-EDX investigations. The ZnO coated fibres were used to prepare fibre-based soft magnetic composites via a cold sintering process. The composites obtained are the first reported soft magnetic composites based on amorphous fibres. The coercive field of the cold sintered composites is 3.5 to 8.6 times lower, and the maximum relative permeability is 2.4 times larger, than the best coercive field and the maximum relative permeability reported until now for a crystalline fibre-based soft magnetic composite. The initial relative permeability of cold sintered composites is constant up to the frequency of 1000 Hz.

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“…Lithium ferrites form an important class of materials exhibiting high Curie temperature, high resistivity, high saturation magnetization etc. They are used in various device applications such as telecommunication and microwave device [4, 5, 6, 7]. Recently, with the development of telecommunications, ferrites with high permeability and high frequency stability are widely used to produce all kinds of broadband elements.…”

Section: Introductionmentioning

confidence: 99%

Analysis of grain growth, structural and magnetic properties of Li-Ni-Zn ferrite under the influence of sintering temperature

Islam

Rahaman

Hasan

et al. 2019

Heliyon

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The effect of sintering temperature (T S ) on the structural and magnetic properties of Li 0.15 Ni 0.3 Zn 0.4 Fe 2.15 O 4 is investigated and discussed. The sample is synthesized by the sol-gel auto combustion method and sintered at 1373–1573 K for 5 h. Phase identification of the powder sample was performed by using the X-ray diffraction (XRD). The XRD patterns confirmed the formation of single phase cubic spinel structure. The bulk density is correlated with T S . From the energy-dispersive X-ray spectroscopy study, it is observed that the percentage of the elements in the component phases is well consistent with the nominal composition of the composites. Field Emission Scanning Electron Microscopy showed that the average grain size (D) is increased with increasing T S . The frequency (100 Hz–120 MHz) dependent complex initial permeability spectra and relative quality factor increased with sintering temperature up to 1523 K then decreased for further increase in temperature. The complex initial permeability has been explained with the help of microstructure, and the redistribution of cations in their sites.

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NiZnCu-ferrite coated iron powder for soft magnetic composite applications

Cited by 39 publications

References 10 publications

Hysteresis loss reduction in self-bias FeSi/SrFe₁₂O₁₉ soft magnetic composites

Hysteresis loss reduction in self-bias FeSi/SrFe₁₂O₁₉ soft magnetic composites

Hydrothermal Deposition of ZnO Layer on Fe-Based Amorphous Fibres Used for the Preparation of Cold Sintered Fibre-Based Soft Magnetic Composites

Analysis of grain growth, structural and magnetic properties of Li-Ni-Zn ferrite under the influence of sintering temperature

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NiZnCu-ferrite coated iron powder for soft magnetic composite applications

Cited by 39 publications

References 10 publications

Hysteresis loss reduction in self-bias FeSi/SrFe12O19 soft magnetic composites

Hysteresis loss reduction in self-bias FeSi/SrFe12O19 soft magnetic composites

Hydrothermal Deposition of ZnO Layer on Fe-Based Amorphous Fibres Used for the Preparation of Cold Sintered Fibre-Based Soft Magnetic Composites

Analysis of grain growth, structural and magnetic properties of Li-Ni-Zn ferrite under the influence of sintering temperature

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Hysteresis loss reduction in self-bias FeSi/SrFe₁₂O₁₉ soft magnetic composites

Hysteresis loss reduction in self-bias FeSi/SrFe₁₂O₁₉ soft magnetic composites