Processing and microstructure characterization of a novel porous hierarchical TiO2 structure

We report on a novel biocompatible hierarchical TiO2 porous coating on the surface of Ti, processed via anodic oxidation. The coating consists of large (∼1–20 μm) pores on the microscale and nanotubes (∼50 nm diameter) on the nanoscale. This structure is exciting because of its potential application...

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Bibliographic Details
Published in:Journal of materials research 2009-05, Vol.24 (5), p.1683-1687
Main Authors: Crawford, G.A., Chawla, N., Ringnalda, J.
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Biomaterials
Inorganic Chemistry
Materials Engineering
Materials Science
Nanostructure
Nanotechnology
Porosity
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Summary:We report on a novel biocompatible hierarchical TiO2 porous coating on the surface of Ti, processed via anodic oxidation. The coating consists of large (∼1–20 μm) pores on the microscale and nanotubes (∼50 nm diameter) on the nanoscale. This structure is exciting because of its potential application as a bioactive coating for Ti bone implants. Surface characterization of the coating showed nanotubes of relatively uniform diameter. The interface between TiO2 nanotubes and Ti, studied by transmission electron microscopy, was incoherent. The tubes were also somewhat interconnected.
ISSN:0884-2914
2044-5326
DOI:10.1557/jmr.2009.0221