Fe-based soft magnetic composites coated with NiZn ferrite prepared by a co-precipitation method

Peng, Yuandong; Yi, Yi; Li, Liya; Ai, Hengyu; Wang, Xiaoxu; Chen, Lulu

doi:10.1016/j.jmmm.2016.12.024

Cited by 67 publications

(14 citation statements)

References 28 publications

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“…The chemical composition of the particles given, by EDS analysis, indicates the presence of organic groups belonging to olive oil, which was used as surfactant and coating agent due on its thermal stability . Thermal treatment varies the ratio of specific elements (C, H, and O) of triglycerides.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and adsorption properties of nanocrystalline ferrites for kinetic modeling development

Roman

Asavei

Karkalos

et al. 2018

Int J Applied Ceramic Tech

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Nanocrystalline ferrites are known to be used in different applications, including industrial wastewater management. For environmental water issues, one of the most widely applied techniques is the adsorption of pollutants. The adsorption capacity of Congo red (CR) dye on different MFe 2 O 4 (M = Co 2+ , Mg 2+ , Mn 2+ , Ni 2+ , and Zn 2+ ) ferrites, synthesized by coprecipitation method, was determined. Specific isotherms and kinetic models were used to characterize the adsorption process. Interesting results were obtained for MgFe 2 O 4 with adsorption capacity ranging from 39% up to 70% dependent on the initial dye concentration. Furthermore, an artificial intelligence model based on neural network was developed in order to model the adsorption rates followed by the generation of 3D adsorption rate models for each type of synthesized ferrite. These models were obtained in order to provide information about the particle-dye system`s kinetics at various initial CR concentration. Specific techniques were used to characterize the functionalized magnetic particles. K E Y W O R D S3D adsorption rate models, adsorption kinetics, artificial neural network modeling, ferrites synthesis

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Section: Resultsmentioning

confidence: 99%

Synthesis and adsorption properties of nanocrystalline ferrites for kinetic modeling development

Roman

Asavei

Karkalos

et al. 2018

Int J Applied Ceramic Tech

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“…However, the application of organic materials in insulating layers is restricted due to their low thermal stability, which may not permit high-temperature heat treatment to eliminate the internal stress that is introduced during the preparation process. Thus, inorganic materials, including phosphates [10], oxides such as SiO 2 , Al 2 O 3 , ZrO 2 , Fe 3 O 4 [11][12][13] and ferrites such as Ni-Zn ferrites and Mn-Zn ferrites [14,15], have gained greater attention and are increasingly considered as promising insulating materials because of their superior electrical resistance and temperature resistance. Peng et al [15] fabricated Mn-Zn ferrite-coated iron-based composite particles by a co-precipitation method and studied the soft magnetic properties of the composites.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, inorganic materials, including phosphates [10], oxides such as SiO 2 , Al 2 O 3 , ZrO 2 , Fe 3 O 4 [11][12][13] and ferrites such as Ni-Zn ferrites and Mn-Zn ferrites [14,15], have gained greater attention and are increasingly considered as promising insulating materials because of their superior electrical resistance and temperature resistance. Peng et al [15] fabricated Mn-Zn ferrite-coated iron-based composite particles by a co-precipitation method and studied the soft magnetic properties of the composites. Wu et al [16] prepared Fe/SiO 2 composite particles via a reverse micro-emulsion method and investigated the effects of the addition amounts of SiO 2 and the heat-treatment temperatures on the permeability and the total core loss of the composites.…”

Section: Introductionmentioning

confidence: 99%

“…Wu et al [16] prepared Fe/SiO 2 composite particles via a reverse micro-emulsion method and investigated the effects of the addition amounts of SiO 2 and the heat-treatment temperatures on the permeability and the total core loss of the composites. Though the above composite particles [15,16] have been fabricated, it was difficult to ensure the homogeneity of the coatings to be applied in industrialization. In addition, the insulating layer is easily peeled off because of the poor adhesiveness to the matrix, which would result in the direct contact between core particles.…”

Section: Introductionmentioning

confidence: 99%

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Hybrid Phosphate-Alumina Iron-Based Core-Shell Soft Magnetic Composites Fabricated by Sol-Gel Method and Ball Milling Method

Pan

Qian

Wang

et al. 2020

Metals

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Novel Fe-based soft magnetic composites (SMCs) with hybrid phosphate-alumina layers were prepared by both sol-gel and ball-milling methods. The effects of the fabrication methods and the addition of Al 2 O 3 particles on the microstructure and the soft magnetic performance of SMCs were studied. The formation of the hybrid phosphate-Al 2 O 3 shell not only leads to the decrease of the total core loss, but also results in the reduction of the permeability and saturation magnetization. However, the degree of decrease caused by the different methods were not identical. The sample with 8% Al 2 O 3 prepared by the sol-gel method showed the best magnetic performance, exhibiting a high-amplitude permeability (µ a ) of 85.14 and a low total core loss (Ps) of 202.3 W/kg at 50 mT and 100 kHz. The hysteresis loss factor and the eddy current loss factor were obtained by loss separation. The results showed that the samples with the same Al 2 O 3 content prepared by different methods exhibited almost the same total core loss. However, the contribution of the hysteresis loss and the eddy current loss showed an obvious difference in behavior because of the change of the particle shapes and the refinement of the particle size during the ball-milling process.

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“…There are various methods for producing these types of materials. One of the ways to obtain highquality composites is sintering and pressing ferromagnetic powders under high pressure, on the order of several hundred MPa [5][6][7][8][9]. However, obtaining such high pressure requires advanced technologies and is quite expensive.…”

mentioning

confidence: 99%

Preparation of Magnetic Composites Based on Bulk Amorphous Iron Alloys

Jeż¹,

Nabiaek²,

Jeż³

2019

Mat.Plast.

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Iron-based amorphous alloys are characterized by so-called soft magnetic properties. Unfortunately, the geometry of iron-based amorphous materials significantly limits the applicability of these materials. One way to expand the use of these materials is to make composites based on them. As part of this work, rapid-cooled alloys were produced using the injection casting method. On their basis, magnetic composites with the addition of a non-magnetic binder were produced. The results of the structure (XRD) and magnetic properties (VSM) tests of the produced materials are presented. The research results have shown that the decisive impact on the magnetic properties of composites is the fact of the separation of magnetic particles with a non-magnetic binder. In this case, the influence of exchange interactions is dominated by dipole interactions.

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Fe-based soft magnetic composites coated with NiZn ferrite prepared by a co-precipitation method

Cited by 67 publications

References 28 publications

Synthesis and adsorption properties of nanocrystalline ferrites for kinetic modeling development

Synthesis and adsorption properties of nanocrystalline ferrites for kinetic modeling development

Hybrid Phosphate-Alumina Iron-Based Core-Shell Soft Magnetic Composites Fabricated by Sol-Gel Method and Ball Milling Method

Preparation of Magnetic Composites Based on Bulk Amorphous Iron Alloys

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