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Processing and microstructure characterization of a novel porous hierarchical TiO2 structure

Published online by Cambridge University Press:  31 January 2011

G.A. Crawford ,
N. Chawla  and
J. Ringnalda
N. Chawla*
Affiliation:
School of Materials, Fulton School of Engineering, Arizona State University, Tempe, Arizona 85287-8706
J. Ringnalda
Affiliation:
FEI Company, Hillsboro, Oregon 97124
*
a) Address all correspondence to this author. e-mail: nchawla@asu.edu
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Abstract

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.

Keywords

NanostructurePorosity
Type
Articles
Information
Journal of Materials Research , Volume 24 , Issue 5 , May 2009 , pp. 1683 - 1687
Copyright
Copyright © Materials Research Society 2009

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