Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Multi-walled Carbon Nanotube-Reinforced Hydroxyapatite Coating on Ti Substrates by Aerosol Deposition

에어로졸 증착법에 의해 티타늄 기판위에 제조된 다중벽 탄소나노튜브 강화 수산화아파타이트 코팅층

  • Hahn, Byung-Dong (Functional Ceramics Research Group, Department of Powder Materials, Korea Institute of Materials Science) ;
  • Park, Dong-Soo (Functional Ceramics Research Group, Department of Powder Materials, Korea Institute of Materials Science) ;
  • Ryu, Jung-Ho (Functional Ceramics Research Group, Department of Powder Materials, Korea Institute of Materials Science) ;
  • Choi, Jong-Jin (Functional Ceramics Research Group, Department of Powder Materials, Korea Institute of Materials Science) ;
  • Yoon, Woon-Ha (Functional Ceramics Research Group, Department of Powder Materials, Korea Institute of Materials Science) ;
  • Lee, Byung-Kuk (Functional Ceramics Research Group, Department of Powder Materials, Korea Institute of Materials Science) ;
  • Kim, Hyoun-Ee (School of Materials Science and Engineering, Seoul National University)
  • 한병동 (한국기계연구원 부설 재료연구소 분말재료연구부 기능세라믹연구그룹) ;
  • 박동수 (한국기계연구원 부설 재료연구소 분말재료연구부 기능세라믹연구그룹) ;
  • 류정호 (한국기계연구원 부설 재료연구소 분말재료연구부 기능세라믹연구그룹) ;
  • 최종진 (한국기계연구원 부설 재료연구소 분말재료연구부 기능세라믹연구그룹) ;
  • 윤운하 (한국기계연구원 부설 재료연구소 분말재료연구부 기능세라믹연구그룹) ;
  • 이병국 (한국기계연구원 부설 재료연구소 분말재료연구부 기능세라믹연구그룹) ;
  • 김현이 (서울대학교 재료공학부)
  • Published : 2008.10.31
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Abstract

Multi-walled carbon nanotube(CNT) reinforced hydroxyapatite composite coating with a thickness of $5{\mu}m$ has been successfully deposited on Ti substrate using aerosol deposition(AD). The coating had a dense microstructure with no cracks or pores, showing good adhesion with the Ti substrate. Microstructural observation using field-emission scanning electron microscopy(FE-SEM) and transmission electron microscopy(TEM) showed that CNTs with original tubular morphology were found in the hydroxyapatite-CNT(HA-CNT) composite coating. Measurements of hardness and elastic modulus for the coating were performed by nanoindentation tests, indicating that the mechanical properties of the coating were remarkably improved by the addition of CNT to HA coating. Therefore, HA-CNT composite coating produced by AD is expected to be potentially applied to the coating for high load bearing implants.

Keywords

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