Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Deposition Behavior and Properties of Carbon Nanotube Aluminum Composite Coatings in Kinetic Spraying Process

탄소 나노튜브 알루미늄 복합재료 저온 분사 코팅의 적층 거동 및 특성

  • Kang, Ki-Cheol (Kinetic Spray Coating Laboratory (NRL), Division of Materials Science & Engineering, Hanyang University) ;
  • Xiong, Yuming (Kinetic Spray Coating Laboratory (NRL), Division of Materials Science & Engineering, Hanyang University) ;
  • Lee, Chang-Hee (Kinetic Spray Coating Laboratory (NRL), Division of Materials Science & Engineering, Hanyang University)
  • 강기철 (한양대학교 신소재공학과) ;
  • ;
  • 이창희 (한양대학교 신소재공학과)
  • Published : 2008.10.31
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Abstract

Carbon nanotube (CNT) aluminum composite coatings were built up through kinetic spraying process. Deposition behavior of CNT aluminum composite on an aluminum 1050 alloy substrate was analyzed based on deposition mechanism of kinetic spraying. The microstructure of CNT aluminum composite coating were observed and analyzed. Also, the electrical resistivity, bond strength and micro-hardness of the CNT aluminum composite coatings were measured and compared to kinetic sprayed aluminum coatings. The CNT aluminum composite coatings have a dense structure with low porosity. Compared to kinetic sprayed aluminum coating, the CNT aluminum composite coatings present lower electrical resistivity and higher micro-hardness due to high electrical conductivity and dispersion hardening effects of CNTs.

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