J. Mater. Sci. Technol. ›› 2016, Vol. 32 ›› Issue (2): 142-146.DOI: 10.1016/j.jmst.2015.10.017

• Orginal Article • Previous Articles     Next Articles

Mixture of Oxides with Different Valence States in Nanotubes

?Xiaoli Zhao1, Meilin Dai2, Shujun Li2, Yulin Hao2, Rui Yang2, Lei Wang1, Yandong Liu1   

  1. 1 Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China;
    2 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
  • Received:2015-05-29 Revised:2015-05-29
  • Contact: Ph.D.; Tel.: +86 24 83978841; Fax: +86 24 23902021. (Y. Hao). E-mail address: ylhao@imr.ac.cn (Y. Hao).

Abstract: biomedical Ti2448 alloy by anodic oxidation in neutral electrolyte. Similar to oxide nanotubes fabricated on pure titanium and its alloys, the as-grown nanotubes on Ti2448 also exhibit gradually changing chemical distribution along the direction of tube growth. Furthermore, several kinds of oxides with different valence states (MxOy) are formed simultaneously for each alloying element M, while their volume fractions vary gradually along the tube-growth direction. The findings of this study would provide insight into the effect of valence states on the desired nanotube properties and help develop ways to enhance the properties of the preferred oxide.

Key words: Biomedical titanium alloy, Oxide nanotube, Anodic oxidation, Chemical distribution