Effects of surface roughness and chemical species on hydrophilicity of anodized film on Ti-6AL-4V formed at a low current density

Phanawan Whangdee, Siritida Chukasorn, Viritpon Srimaneepong, Tomoaki Watanabe, Dujreutai Pongkao Kashima

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Anodization of Ti-6Al-4V is crucial for dental implants because it promotes the roughness, chemical species and hydrophilicity of the surface that leads to its biocompatibility. The anodized film was prepared by the galvanostatic method at a low current density in either 1 M H3PO4 or 1 M NaOH as the electrolyte. The as-anodized film showed a significant decrease in the water contact angle, likely to be due to an increased surface roughness (as revealed by scanning electron and atomic force microcopy) and change in the surface species (as revealed by X-ray photoelectron spectroscopy, XPS). XPS analyses confirmed that the Ti2p spectra scarcely changed while the O1s spectra significantly changed due to Ti-OH bonding. Moreover, the O/Ti ratio of the as-anodized film was increased. The results suggest that anodization by the galvanostatic method at a low current density in 1 M H3PO4or 1 M NaOH could enhance the surface roughness and chemical surface species, and that both are likely to be important factors for enhancing the hydrophilicity of the anodized films.

Original languageEnglish
Title of host publicationEnvironmental and Materials Engineering
Pages774-779
Number of pages6
DOIs
Publication statusPublished - 18 Mar 2013
Event2012 International Conference on Environmental and Materials Engineering, EME 2012 - Seoul, Korea, Republic of
Duration: 9 Dec 201210 Dec 2012

Publication series

NameAdvanced Materials Research
Volume664
ISSN (Print)1022-6680

Conference

Conference2012 International Conference on Environmental and Materials Engineering, EME 2012
CountryKorea, Republic of
CitySeoul
Period9/12/1210/12/12

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Keywords

  • Anodize
  • Hydrophilicity
  • Low current density
  • Roughness
  • Surface species
  • Ti-6AL-4V

Cite this

Whangdee, P., Chukasorn, S., Srimaneepong, V., Watanabe, T., & Kashima, D. P. (2013). Effects of surface roughness and chemical species on hydrophilicity of anodized film on Ti-6AL-4V formed at a low current density. In Environmental and Materials Engineering (pp. 774-779). (Advanced Materials Research; Vol. 664). https://doi.org/10.4028/www.scientific.net/AMR.664.774