Magnetic properties and thermal stability of Fe-based amorphous/carbonyl iron soft magnetic composites

Shen, Jibiao; Wang, Bin; Cai, Lingwen; Liu, Lidong; Zhang, Cong; Wang, Bingxing; Tian, Yong; Yu, Yangdong; Dong, Jiangqun; Wang, Guodong

doi:10.1007/s10854-023-10512-9

Cited by 11 publications

(3 citation statements)

References 29 publications

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“…They are ideal choices for developing high-performance electromagnetic-absorption materials [26]. As a typical magnetic metal powder, carbonyl iron powder (CIP) has been widely used as an absorbent, due to the high magnetic permeability, high saturation magnetization, high Curie temperature, excellent absorption performance, and wide electromagnetic-absorption frequency band [27][28][29][30][31]. The coatings with a shell-like structure on CIP magnetic cores [32] have advantages such as a low density, high specific surface area, and large pores.…”

Section: Introductionmentioning

confidence: 99%

Effect of Blending of Shellac, Carbonyl Iron Powder, and Carbonyl Iron Powder/Carbon Nanotube Microcapsules on the Properties of Coatings

Zhu,

Li,

Xia

et al. 2024

Coatings

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Nine sets of orthogonal experimental samples were prepared by examining four factors: shellac microcapsules, carbonyl iron powder (CIP) microcapsules, CIP/ carbon nanotube (CNT) microcapsules, and primer coating thickness. By testing the morphology and performance of the coating and using the fracture elongation of the coating as an orthogonal experimental analysis, the maximum factor affecting the fracture elongation of shellac, CIP, and CIP/CNT microcapsule coatings was determined. The first two factors that had a significant impact on the fracture elongation of the coating were the content of CIP/CNT microcapsules and shellac microcapsules. In order to further optimize the coating performance, important factor experiments were conducted, using the content of CIP/CNT microcapsules and shellac microcapsules as variables. It was found that the coating had the best performance when the content of CIP/CNT microcapsules was 7.0% and the content of shellac microcapsules was 4.0%. The optical properties of coatings with added shellac, CIP, and CIP/CNT microcapsules were tested, and the color difference and glossiness of the coatings showed little change. The mechanical properties of coatings with added shellac, CIP, and CIP/CNT microcapsules were tested. The blending of the three types of microcapsules enhanced the toughness of the coating to a certain extent, and suppressed the generation of micro-cracks, demonstrating a good self-healing effect. The electromagnetic-absorption performance of coatings with added shellac, CIP, and CIP/CNT microcapsules was tested. The blending of shellac, CIP, and CIP/CNT microcapsules exhibited two effective bands of electromagnetic absorption and a good absorption performance at a relatively wide frequency range. The combination of shellac, CIP, and CIP/CNT microcapsules endows the fiberboard surface with self-healing and electromagnetic-absorption functions, while maintaining the original performance of the water-based coating. The results can be used for application of surface coatings on wooden materials with dual functions of self-healing and electromagnetic absorption.

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Section: Introductionmentioning

confidence: 99%

Effect of Blending of Shellac, Carbonyl Iron Powder, and Carbonyl Iron Powder/Carbon Nanotube Microcapsules on the Properties of Coatings

Zhu,

Li,

Xia

et al. 2024

Coatings

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show abstract

“…27,28 Additionally, the temperature stability of ASMCs is crucial for their practical application. 29 The composition can be optimized, the annealing process controlled, and rare earth elements introduced to improve the temperature stability of ASMCs. 30 The favorable magnetic properties exhibited by ASMCs under high-frequency magnetic fields (MHz) offer promising opportunities for further industrial applications, including chip inductors and photovoltaic inverters.…”

Section: ■ Introductionmentioning

confidence: 99%

“…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.

Self Cite

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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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Core-loss behavior of Fe-based nanocrystalline at high frequency and high temperature

Deng,

Yang,

et al. 2024

J Mater Sci: Mater Electron

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Magnetic properties and thermal stability of Fe-based amorphous/carbonyl iron soft magnetic composites

Cited by 11 publications

References 29 publications

Effect of Blending of Shellac, Carbonyl Iron Powder, and Carbonyl Iron Powder/Carbon Nanotube Microcapsules on the Properties of Coatings

Effect of Blending of Shellac, Carbonyl Iron Powder, and Carbonyl Iron Powder/Carbon Nanotube Microcapsules on the Properties of Coatings

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

Core-loss behavior of Fe-based nanocrystalline at high frequency and high temperature

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