Table of Contents Author Guidelines Submit a Manuscript
Journal of Nanomaterials
Volume 2010, Article ID 503186, 7 pages
http://dx.doi.org/10.1155/2010/503186
Research Article

Growth of 1-D TiO2 Nanowires on Ti and Ti Alloys by Oxidation

1Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
2Department of Chemical Engineering, King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11421, Saudi Arabia

Received 27 July 2010; Accepted 11 November 2010

Academic Editor: Zhi Li Xiao

Copyright © 2010 Huyong Lee et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The growth of titania nanowires by a simple metal oxidation process was investigated for both commercially pure α-Ti and Ti alloys including Ti64 and β-Ti under a limited supply of oxygen. The effects of processing variables including heat treatment temperature, gas flow rate, and process duration on the growth of nanowires were explored. Similarities and differences in the growth of nanowires on pure Ti versus Ti alloys were observed. While the growth window in terms of temperature and flow rate is narrow in pure Ti, the window is much wider in the alloys. However, the trend towards high temperature is similar in all the samples promoting faceted oxide crystal growth rather than nanowires.