Microstructural and mechanical characterization of the porous anodic TiO2 layer on titanium

Zhao Xiang Chen, Wen Xue Wang, Yoshihiro Takao, Terutake Matsubara, Li Mei Ren

研究成果: 書籍/レポート タイプへの寄稿


Porous TiO2 layer was fabricated on the titanium surface using an anodic spark oxidation technique for biomedical application. The microstructural and mechanical characterization of TiO2 layer was performed. Results show that the fabricated TiO2 layer exhibited a porous surface and poorly-crystallized structure, and an inner layer containing numerous cavities was observed near the oxide-sub-strate interface. The mechanical characteristics of TiO2 layer were greatly influenced by its microstructural features. The performed shear test showed that the shear fracture of oxide layer took place primarily within the cavity-containing layer. The performed tensile fatigue loading resulted in multiple cracking to occur in the oxide layer with distinctive inclined cracking driven by slip band in the titanium substrate, and localized spallation of oxide layer was also observed. Despite extensive fatigue damage in the oxide layer, the fatigue life of titanium was not significantly influenced by the present anodization treatment.

ホスト出版物のタイトルInterface Oral Health Science 2011
出版社Springer Japan
出版ステータス出版済み - 1月 1 2012

!!!All Science Journal Classification (ASJC) codes

  • 歯学一般


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