期刊
MATERIALS
卷 14, 期 14, 页码 -出版社
MDPI
DOI: 10.3390/ma14143774
关键词
electromagnetic interference shielding properties; magnetic properties; carbon fibers; electroless plating
类别
资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education (MOE) [2016R1A6A1A03012069, 2020R1A2C1102174]
- National Research Foundation of Korea [2020R1A2C1102174] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
By coating soft magnetic metal on carbon fibers using an electroless plating method, the EMI shielding properties of FeCoNi-CFs were significantly enhanced compared to untreated CFs, with the highest EMI shielding effectiveness reaching approximately 69.4 dB at 1.5 GHz.
In this study, soft magnetic metal was coated on carbon fibers (CFs) using an electroless FeCoNi-plating method to enhance the electromagnetic interference (EMI) shielding properties of CFs. Scanning electron microscopy, X-ray diffraction, and a vibrating sample magnetometer were employed to determine the morphologies, structural properties, and magnetic properties of the FeCoNi-CFs, respectively. The EMI shielding behavior of the FeCoNi-CFs was investigated in the frequency range of 300 kHz to 3 GHz through vector network analysis. The EMI shielding properties of the FeCoNi-CFs were significantly enhanced compared with those of the as-received CFs. The highest EMI shielding effectiveness of the 60-FeCoNi-CFs was approximately 69.4 dB at 1.5 GHz. The saturation magnetization and coercivity of the 60-FeCoNi-CFs were approximately 103.2 emu/g and 46.3 Oe, respectively. This indicates that the presence of FeCoNi layers on CFs can lead to good EMI shielding due to the EMI adsorption behavior of the magnetic metal layers.
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