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Improvement of Electrical Conductivity of Carbon-Fiber Reinforced Plastics by Nano-particles Coating (나노입자 코팅 탄소섬유 강화 복합재료의 전기전도도 향상)

  • Seo, Seong-Wook;Ha, Min-Seok;Kwon, Oh-Yang;Cho, Heung-Soap
    • Composites Research
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    • v.23 no.6
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    • pp.1-6
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    • 2010

  • The electrical conductivity of carbon-fiber reinforced plastics (CFRP's) has been improved by indium-tin oxide (ITO) nano-particle coating on carbon fibers for the purpose of lightning strike protection of composite fuselage skins. ITO nano-particles were coated on the surface of carbon fibers by spraying the colloidal suspension with 10~40% ITO content. The electrical conductivity of the CFRP has been increased more than three times after ITO coating, comparable to or higher than that of B-787 composite fuselage skins with metal wire-meshes on the outer surface, without sacrificing the tensile property due to the existence of nano-particles at fiber-matrix interface. The damage area by the simulated lightning strike was also verified for different materials and conditions by using ultrasonic C-scan image. As the electrical conductivity of 40% nano-ITO coated sample surpass that of the B-787 sample, the damage area by lightning strike also appeared comparable to that of the materials currently employed for composite fuselage construction.

  • https://doi.org/10.7234/kscm.2010.23.6.001 인용 PDF KSCI