Effect of Surface Morphology and Crystal Structure on Bioactivity of Titania Films Formed on Titanium Metal via Anodic Oxidation in Sulfuric Acid Solution

Tian Ying Xiong, Xin Yu Cui, Hyun Min Kim, Masakazu Kawashita, Tadashi Kokubo, Jie Wu, Hua Zi Jin, Takashi Nakamura

Research output: Contribution to journalConference articlepeer-review

21 Citations (Scopus)

Abstract

Porous titania layers composed of rutile and anatase were formed on the surface of titanium metals by anodic oxidation at voltages of 100, 150 and 180 V in H2SO4 solutions, with concentrations of 0.5, 1.0 and 2.0 M. Pore size increased with increasing applied voltage from 100 to 180V under a constant H2SO4 concentration of 0.5, 1.0 or 2.0M. The relative amount of rutile to anatase and the apatite-forming ability of titanium metals increased with increasing applied voltage from 100 to 180 V under a constant H2SO4 concentration of 0.5, 1.0 or 2.0 M and increasing H2SO4 concentration from 0.5 to 2.0 . Munder a constant applied voltage of 100, 150 or 180 V. Titanium metal anodically oxidized at 180 V in 2.0M-H2SO4 solutions showed extremely high apatite-forming ability in simulated body fluid (SBF).

Original languageEnglish
Pages (from-to)375-378
Number of pages4
JournalKey Engineering Materials
Volume254-256
Publication statusPublished - 2004 Jan 1
EventThe Annual Meeting of the International Society for Ceramics in Medicine - Porto, Portugal
Duration: 2003 Nov 62003 Nov 9

Keywords

  • Anodic oxidation
  • Apatite
  • Simulated body fluid
  • Sulfuric acid solution
  • Titanium metal

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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