카본블랙을 이용한 하이브리드 복합재료의 전자파 차폐 효과
Electromagnetic Interference Shielding Effectiveness of Hybrid Composite Materials with Carbon Black
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This study investigates electromagnetic interference (EMI) shielding effectiveness (SE) of hybrid composite materials. We designed and constructed a measuring system including a network analyzer and a device that serves as a sample holder and at the same time as a transmission medium of incident electromagnetic waves. The measurements of SE were carried out in a frequency range from 100 MHz to 2 GHz. The results of the EMI shielding experiments showed that the electromagnetic wave shielding effectiveness could be improved when carbon fiber sheet and the shield wear are produced in the sandwich type of hybrid composite materials with the carbon black. The CF/CCo/CF composite materials using carbon black was shown to exhibit up to 83dB of SE at 700 MHz.
Abstract
This study investigates electromagnetic interference (EMI) shielding effectiveness (SE) of hybrid composite materials. We designed and constructed a measuring system including a network analyzer and a device that serves as a sample holder and at the same time as a transmission medium of incident electromagnetic waves. The measurements of SE were carried out in a frequency range from 100 MHz to 2 GHz. The results of the EMI shielding experiments showed that the electromagnetic wave shielding effectiveness could be improved when carbon fiber sheet and the shield wear are produced in the sandwich type of hybrid composite materials with the carbon black. The CF/CCo/CF composite materials using carbon black was shown to exhibit up to 83dB of SE at 700 MHz.
참고문헌 (7)
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