Fabrication and Soft Magnetic Properties of Fe–Si–Cr Composites with Double-Insulating Layers Suitable for High-Frequency Power Applications
Soft magnetic composites (SMCs) are composed of alloy materials with the core and insulating layers as the shell. These composites exhibit high saturation magnetic sensitivity and low hysteresis loss, making them a promising material for various applications. The investigation of double layers is co...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Magnetochemistry |
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| Online Access: | https://www.mdpi.com/2312-7481/9/6/145 |
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| author | Zhenyi Huang Huaqin Huang Hao He Kaixuan Li Zhaoyang Wu Rui Wang |
| author_facet | Zhenyi Huang Huaqin Huang Hao He Kaixuan Li Zhaoyang Wu Rui Wang |
| author_sort | Zhenyi Huang |
| collection | DOAJ |
| description | Soft magnetic composites (SMCs) are composed of alloy materials with the core and insulating layers as the shell. These composites exhibit high saturation magnetic sensitivity and low hysteresis loss, making them a promising material for various applications. The investigation of double layers is considered valuable as it can effectively address the issues of low resistivity and high dynamic loss that arise from non-uniform insulating layers in SMCs. In this study, Fe-Si-Cr/SiO<sub>2</sub> particles with a core–shell heterostructure were produced via chemical vapor deposition (CVD). The Fe-Si-Cr/SiO<sub>2</sub> materials were coated with different weight percentages (1–6%) of sodium silicate (SS). Subsequently, Fe-Si-Cr-based SMCs were synthesized through high-pressure molding and heat treatment. The effect of the SS weight percentage on microscopic changes and magnetic characteristics was investigated. These findings indicated that a concentration of 4 wt% of SS was the most effective at enhancing magnetic characteristics. The resultant SMCs exhibited high resistivity (21.07 mΩ·cm), the lowest total loss (P<sub>10 mt/300 kHz</sub> of 44.23 W/kg), a relatively high saturation magnetization (181.8 emu/g), and permeability (35.9). Furthermore, it was observed that the permeability exhibited stabilization at lower frequencies. According to these findings, the combination of CVD and double layers could lead to the further development of SMCs in a variety of applications. |
| first_indexed | 2024-03-11T02:13:24Z |
| format | Article |
| id | doaj.art-5b04a42420ca4b64b7f6a57acfd5d2d9 |
| institution | Directory Open Access Journal |
| issn | 2312-7481 |
| language | English |
| last_indexed | 2024-03-11T02:13:24Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Magnetochemistry |
| spelling | doaj.art-5b04a42420ca4b64b7f6a57acfd5d2d92023-11-18T11:21:48ZengMDPI AGMagnetochemistry2312-74812023-05-019614510.3390/magnetochemistry9060145Fabrication and Soft Magnetic Properties of Fe–Si–Cr Composites with Double-Insulating Layers Suitable for High-Frequency Power ApplicationsZhenyi Huang0Huaqin Huang1Hao He2Kaixuan Li3Zhaoyang Wu4Rui Wang5School of Metallurgical Engineering, Anhui University of Technology, Maanshan 243002, ChinaKey Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, Anhui University of Technology, Maanshan 243002, ChinaKey Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, Anhui University of Technology, Maanshan 243002, ChinaKey Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, Anhui University of Technology, Maanshan 243002, ChinaSchool of Metallurgical Engineering, Anhui University of Technology, Maanshan 243002, ChinaKey Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, Anhui University of Technology, Maanshan 243002, ChinaSoft magnetic composites (SMCs) are composed of alloy materials with the core and insulating layers as the shell. These composites exhibit high saturation magnetic sensitivity and low hysteresis loss, making them a promising material for various applications. The investigation of double layers is considered valuable as it can effectively address the issues of low resistivity and high dynamic loss that arise from non-uniform insulating layers in SMCs. In this study, Fe-Si-Cr/SiO<sub>2</sub> particles with a core–shell heterostructure were produced via chemical vapor deposition (CVD). The Fe-Si-Cr/SiO<sub>2</sub> materials were coated with different weight percentages (1–6%) of sodium silicate (SS). Subsequently, Fe-Si-Cr-based SMCs were synthesized through high-pressure molding and heat treatment. The effect of the SS weight percentage on microscopic changes and magnetic characteristics was investigated. These findings indicated that a concentration of 4 wt% of SS was the most effective at enhancing magnetic characteristics. The resultant SMCs exhibited high resistivity (21.07 mΩ·cm), the lowest total loss (P<sub>10 mt/300 kHz</sub> of 44.23 W/kg), a relatively high saturation magnetization (181.8 emu/g), and permeability (35.9). Furthermore, it was observed that the permeability exhibited stabilization at lower frequencies. According to these findings, the combination of CVD and double layers could lead to the further development of SMCs in a variety of applications.https://www.mdpi.com/2312-7481/9/6/145soft magnetic materialsinsulating layersdouble layersmagnetic properties |
| spellingShingle | Zhenyi Huang Huaqin Huang Hao He Kaixuan Li Zhaoyang Wu Rui Wang Fabrication and Soft Magnetic Properties of Fe–Si–Cr Composites with Double-Insulating Layers Suitable for High-Frequency Power Applications Magnetochemistry soft magnetic materials insulating layers double layers magnetic properties |
| title | Fabrication and Soft Magnetic Properties of Fe–Si–Cr Composites with Double-Insulating Layers Suitable for High-Frequency Power Applications |
| title_full | Fabrication and Soft Magnetic Properties of Fe–Si–Cr Composites with Double-Insulating Layers Suitable for High-Frequency Power Applications |
| title_fullStr | Fabrication and Soft Magnetic Properties of Fe–Si–Cr Composites with Double-Insulating Layers Suitable for High-Frequency Power Applications |
| title_full_unstemmed | Fabrication and Soft Magnetic Properties of Fe–Si–Cr Composites with Double-Insulating Layers Suitable for High-Frequency Power Applications |
| title_short | Fabrication and Soft Magnetic Properties of Fe–Si–Cr Composites with Double-Insulating Layers Suitable for High-Frequency Power Applications |
| title_sort | fabrication and soft magnetic properties of fe si cr composites with double insulating layers suitable for high frequency power applications |
| topic | soft magnetic materials insulating layers double layers magnetic properties |
| url | https://www.mdpi.com/2312-7481/9/6/145 |
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