Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Surface Characteristics of Oxide Film Prepared on CP Ti and Ti-10Ta-10Nb Alloy by Anodizing

양극산화에 의해 CP Ti와 Ti-10Ta-10Nb 합금 표면에 형성된 산화 피막의 형상 및 표면 특성

  • Kim, Hyun-Seung (School of Materials Science and Engineering, Research Institute for Functional Surface, Chonnam National University) ;
  • Kee, Kwang-Min (School of Materials Science and Engineering, Research Institute for Functional Surface, Chonnam National University) ;
  • Lee, Doh-Jae (School of Materials Science and Engineering, Research Institute for Functional Surface, Chonnam National University) ;
  • Park, Sang-Won (Department of Prosthodontics, College of Dentistry, Chonnam National University) ;
  • Lee, Kyung-Ku (R&D Center for Titanium and Special Alloys)
  • 김현승 (전남대학교 신소재공학부 및 기능성 표면공학연구소) ;
  • 이광민 (전남대학교 신소재공학부 및 기능성 표면공학연구소) ;
  • 이도재 (전남대학교 신소재공학부 및 기능성 표면공학연구소) ;
  • 박상원 (전남대학교 치의학전문대학원 보철학교실) ;
  • 이경구 (타이타늄.특수합금부품개발지원센터)
  • Published : 2007.01.27
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Abstract

In the present study, we investigated the formation of self-organized nanostructure oxide layers on CP Ti and Ti-10Ta-10Nb alloy in an electrolyte of 1M phosphoric acid and 1.5 wt% Hydrofluoric acid. The morphology of oxide film on substrate was observed using scanning electron microscopy and transmission electron microscopy The surface roughness of titanium oxide film was analyzed by atomic force microscopy and the crystalline of specimen was investigated using X-ray diffractometer. The results of this study showed that well-aligned titanium oxide nanotubes are formed with diameter of approx. 100nm and length of approx. 500nm with CP Ti. However, it is clear that TiTaNb alloy highly irregular structure with various diameters. Transmission electron microscope investigations show that the specimens were confirmed as amorphous. Such titanium oxide nanotubes are expected a well-adhered bioacitive surface layer on titanium substrate for orthopedics and dental implants.

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