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http://dx.doi.org/10.3740/MRSK.2007.17.1.006

Surface Characteristics of Oxide Film Prepared on CP Ti and Ti-10Ta-10Nb Alloy by Anodizing  

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)
Publication Information
Korean Journal of Materials Research / v.17, no.1, 2007 , pp. 6-10 More about this Journal
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.
Keywords
Anodizing; Titanium oxide; Ti-10Ta-10Nb alloy; Nanotube;
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