Improved magnetic properties of FeSiCr amorphous soft magnetic composites by adding carbonyl iron powder

Xia, Chao; Peng, Yuandong; Yi, Xuwu; Yao, Zhixin; Zhu, Yuanyuan; Hu, Gengkai

doi:10.1016/j.jnoncrysol.2021.120673

Cited by 51 publications

(10 citation statements)

References 32 publications

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“…To highlight the prominent comprehensive soft magnetic properties of the ASMC with CSAS, previously reported data including M s , µ e (100 kHz) and P cv (0.1 T, 100 kHz) of the ASMCs prepared by the atomized powders were summarized [11,12,17,18,[47][48][49][50][51], and compared with the current study in figures 3(d) and (e). It can be seen that µ e of most ASMCs is less than 60 combined with a limited M s lower than 150 emu g −1 which is not favorably comparable to some of the traditional metallic magnetic powders such as the FeSi powder [16].…”

Section: Improved Comprehensive Soft Magnetic Propertiesmentioning

confidence: 93%

Critical state-induced emergence of superior magnetic performances in an iron-based amorphous soft magnetic composite

Shao,

Bai,

et al. 2024

Mater. Futures

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Soft magnetic composites (SMCs) play a pivotal role in the development of high-frequency, miniaturization and complex forming of modern electronics. However, they usually suffer from a trade-off between high magnetization and good magnetic softness (high permeability and low core loss). In this work, utilizing the order modulation strategy, a critical state in a FeSiBCCr amorphous soft magnetic composite (ASMC), consisting of massive crystal-like orders (CLOs, ~1 nm in size) with the feature of α-Fe, is designed. This critical-state structure endows the amorphous powder with the enhanced ferromagnetic exchange interactions and the optimized magnetic domains with uniform orientation and fewer micro-vortex dots. Superior comprehensive soft magnetic properties at high frequency emerge in the ASMC, such as a high saturation magnetization (Ms) of 170 emu/g and effective permeability (μe) of 65 combined with a core loss (Pcv) as low as 70 mW/cm3 (0.01 T, 1 MHz). This study provides a new strategy for the development of high-frequency ASMCs, possessing suitable comprehensive soft magnetic performance to match the requirements of the modern magnetic devices used in the third-generation semiconductors and new energy fields.

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Section: Improved Comprehensive Soft Magnetic Propertiesmentioning

confidence: 93%

Critical state-induced emergence of superior magnetic performances in an iron-based amorphous soft magnetic composite

Shao,

Bai,

et al. 2024

Mater. Futures

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“…The components are annealed at a temperature of 400 °С during 1 hour in special autoclaves. Under such technological regimes the density of the pressed composite is of the order of 7.5-7.8 g/сm 3 .…”

Section: Electrical Parameters Of the Motormentioning

confidence: 99%

“…Magnetic components for a two-stator combined electric motor were produced by the po wder metallurgy method on the basis of magnetically soft encapsulated titanium dioxide composites. The density of the manufactured components is 7.5-7.8 g/сm 3 . Measurements of the main electromagnetic characteristics of the magnetic components were made on an express magnetometer at a frequency of 1 kHz.…”

Section: Electrical Parameters Of the Motormentioning

confidence: 99%

“…In order to create new types of high-performance electric motors in the world, many scientific teams develop new electromagnetic materials [2]. Over the past years, various types of magnetic materials, such as pure iron-based and its alloys, such as Fe-Ni, Fe-Ni-P, Fe-Nd-B, Fe-Si and Fe-Si-Cr, etc., have been used [3][4][5][6][7][8]. An information analysis of a large amount of data on the study of technological schemes for obtaining powder magnetically soft materials and the study of the magnetic and physico-mechanical properties of experimental samples shows that one of the promising directions for the further development of such materials is the creation of materials based on nanocrystalline powders [9].…”

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confidence: 99%

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Magnetically soft composites based on iron powders for creating components of a two-stator combined electric motor

Zhaludkevich,

Govor,

Larin

et al. 2023

Vescì Akademìì navuk Belarusì. Seryâ fizika-tehničnyh navuk

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An experimental prototype of electric motor on permanent (FeNdB) magnets with switchable magnetic flux with two sectioned stators and a rotor using SMC material based on encapsulated metal powders has been developed. The method of manufacture of magnetic cores by powder metallurgy method on the basis of magnetically soft encapsulated titanium dioxide composites has been developed, including computer modeling of magnetic cores components, creation of tooling for their manufacture by pressing and selection of technological modes of pressing. Press set for manufacturing stator components by pressing in the form of a mold was made of hardened 5XHB steel. With its use magnetic components for twostator combined electric motor are pressed. The main electromagnetic characteristics of the components were measured with an express magnetometer. Complex studies showed that the magnetic components have sufficient strength and the necessary electromagnetic characteristics to create a two-stator combined electric motor of this type. An experimental sample of electric motor with maximum power of 15 kW was created on the basis of manufactured magnetic components. Advantages of composite material over electrical steel and other soft magnetic alloys allow providing their wider application in electric machines in order to increase specific power at high speed of rotation with less losses.

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“…When the CIP content increased from 0% to 50% by weight, the relative density increased from 75.9% to 84.9% and the magnetic permeability of the sample heat-treated at 500 °C rose from 19.1% to 36.8%, i.e., by 92.7%. As the iron carbonyl content increased, the rate of increase in the composite density decreased gradually [ 14 , 15 , 16 , 17 , 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Modification of the Properties of Polymer Composites in a Constant Magnetic Field Environment

et al. 2021

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In this paper, polymer composites based on polylactide (PLA) and epoxy resin (Epidian 5) were studied in terms of the influence of magnetic induction on their changes in physicochemical properties. The composites contained admixtures in the form of magnetite (Fe3O4) and crystalline cellulose (Avicel PH-1010) in the amount of 10%, 20%, and 30% by weight and starch in the amount of 10%. The admixtures of cellulose and starch were intended to result in the composites becoming biodegradable biopolymers to some extent. Changes in physical and chemical properties due to the impact of a constant magnetic field with a magnetic induction value B = 0.5 T were observed. The changes were observed during tests of tensile strength, bending, impact strength, water absorbency, frost resistance, chemical resistance to acids and bases, as well as through SEM microscopy and with studies of the composition of the composites that use the EDS method and of their structure with the XRD method. Based on the obtained results, it was found that the magnetic induction value changes the properties of composites. This therefore acts as one method of receiving new alternative materials, the degradation of which in the environment would take far less time.

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Improved magnetic properties of FeSiCr amorphous soft magnetic composites by adding carbonyl iron powder

Cited by 51 publications

References 32 publications

Critical state-induced emergence of superior magnetic performances in an iron-based amorphous soft magnetic composite

Critical state-induced emergence of superior magnetic performances in an iron-based amorphous soft magnetic composite

Magnetically soft composites based on iron powders for creating components of a two-stator combined electric motor

Modification of the Properties of Polymer Composites in a Constant Magnetic Field Environment

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