Photo-induced properties of anodic oxide films on Ti6Al4V

Naoya Masahashi, Yoshiteru Mizukoshi, Satoshi Semboshi, Kazuyo Ohmura, Shuji Hanada

研究成果: Article査読

27 被引用数 (Scopus)

抄録

Photocatalytic activity and wettability of the anodic oxide layer on Ti6Al4V prepared by anodization in a sulfuric acid electrolyte are explored. The oxide is composed mainly of TiO 2 with V 2O 5, VO 2 and Al 2O 3. The crystal structure of the TiO 2 varies from anatase to rutile with the sulfuric acid concentration in the electrolyte. Anatase exhibits better photocatalytic activity compared with rutile, which is different from those on Ti and Ti-Nb-Sn alloy. Contact angles of the oxides decrease with ultraviolet light illumination, and hydrophilicity is observed in the rutile oxide. Both photocatalytic activity and hydrophilicity are inferior to the corresponding Ti and Ti-Nb-Sn alloy, which is explained by the presence of Al 2O 3 in the anodic oxide.

本文言語English
ページ(範囲)4956-4964
ページ数9
ジャーナルThin Solid Films
520
15
DOI
出版ステータスPublished - 2012 5 31

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 表面および界面
  • 表面、皮膜および薄膜
  • 金属および合金
  • 材料化学

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