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Journal of Electrochemistry ›› 2005, Vol. 11 ›› Issue (1): 67-71.

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The Electrophoretic Deposition of Nano Hydroxyapatite Coating on Titanium Surface

CHEN Fei~1,LIN Chang-jian~   

  1. (*1),WANG Zhou-cheng~2(1.State Key Lab for Physical Chemistry of Solid Surfaces,Department of Chemistry, Xiamen University, Xiamen 361005, China,2.Department of Materials Science and Engineering, Xiamen University, Xiamen~()361005, China
  • Received:2005-02-28 Revised:2005-02-28 Online:2005-02-28 Published:2005-02-28

Abstract: A hydroxyapatite coating with nano-structure on the roughened titanium surface was prepared by electrophoretic deposition process. To decrease sintering temperature the HAp nanoparticles synthesizedby a wet chemical method was used. It is observed that the coating is uniform without cracks. After sintering the nano-strueture of HAp coating remains unchanged. The surface treatment of Ti is applied to form a distribution of small pits and TiO_2thin layer that improve the adhesion of coatingto Ti substrate. It is shown that the bonding strength of coating is as high as 18±2.5MPa. The hardness and Young's modulus are 40.6 and 0.42 GPa, respectively.

Key words: Hydroxyapatite, Nano coating, Electrophoretic deposition

CLC Number: