Journal of Materials Science

, Volume 44, Issue 23, pp 6310–6316 | Cite as

Preparation of K2Ti6O13/TiO2 bio-ceramic on titanium substrate by micro-arc oxidation

  • Zhongwei Zhao
  • Xingyu Chen
  • Ailiang Chen
  • Guangsheng Huo
  • Honggui Li


K2Ti6O13/TiO2 bio-ceramic coatings are prepared successfully by micro-arc oxidation on titanium substrate in pure KOH electrolyte solution. The coating is prepared at various applied current density (150–500 mA/cm2) and in KOH electrolyte with different concentrations (0.5–1.2 mol/L). The composition and surface morphologies of coatings are strongly dependent on the applied current density and the electrolyte concentration. On the condition of lower current density and electrolyte concentration, K2Ti6O13 phase almost cannot be formed. The phase is mainly composed of rutile and K2Ti6O13 with increasing current density and electrolyte concentration. The surface morphologies are composed of whiskers and porous structures. The ability of K2Ti6O13/TiO2 bio-ceramic films inducing apatite deposition is evaluated by soaking it in biological model fluids. The results show the K2Ti6O13/TiO2 bio-ceramic coatings possess excellent capability of inducing bone-like apatite to deposit.


Electrolyte Concentration Rutile Phase Titanium Substrate Dielectric Breakdown Plasma Electrolytic Oxidation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work was supported by National Science Foundation of China (No. 50674105).


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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Zhongwei Zhao
    • 1
  • Xingyu Chen
    • 1
  • Ailiang Chen
    • 1
  • Guangsheng Huo
    • 1
  • Honggui Li
    • 1
  1. 1.School of Metallurgical Science and EngineeringCentral South UniversityChangshaChina

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