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Processing and microstructure characterization of a novel porous hierarchical TiO2 structure

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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 mm) 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.

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Authors and Affiliations

  1. School of Materials, Fulton School of Engineering, Arizona State University, Tempe, Arizona, 85287-8706, USA

    G. A. Crawford & N. Chawla

  2. FEI Company, Hillsboro, Oregon, 97124, USA

    J. Ringnalda

Authors
  1. G. A. Crawford
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  2. N. Chawla
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  3. J. Ringnalda
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Correspondence to N. Chawla.

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Crawford, G.A., Chawla, N. & Ringnalda, J. Processing and microstructure characterization of a novel porous hierarchical TiO2 structure. Journal of Materials Research 24, 1683–1687 (2009). https://doi.org/10.1557/jmr.2009.0221

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  • DOI: https://doi.org/10.1557/jmr.2009.0221

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