Paper Title:
Electrochemical Formation and Corrosion Properties of Porous TiOx Biomaterials
  Abstract

Formation of porous TiOx layers on Ti during electrochemical etching in H3PO4, CH3COOH electrolytes modified by HF and NH4F was described. The anodization resulted in porous TiOx formation, useful in tissue growth and bone bonding. The pore dimensions increased due to the increase of HF or NH4F content in H3PO4 electrolyte. During anodization at 10 V for 30 min, when the HF content increased from 0.5 to 10%, the pore diameter increased from 30 nm up to 8 m, respectively. Anodization in CH3COOH electrolyte resulted in non-uniform etching with flat hexagonal islands with nanopores inside surrounded by micropores. Corrosion properties of the etched samples were investigated in Ringer’s solution at 37oC and were compared to the unetched sample. The best corrosion resistance showed the samples etched at 10 V for 30 min in 1M H3PO4 + 2% HF and 1M H3PO4 + 10% NH4F, what can be attributed to thick oxide layer. We find, that porous sample presented good biocompatibility with human osteoblasts.

  Info
Periodical
Materials Science Forum (Volumes 636-637)
Edited by
Luís Guerra ROSA and Fernanda MARGARIDO
Pages
15-21
DOI
10.4028/www.scientific.net/MSF.636-637.15
Citation
J. Jakubowicz, K. Jurczyk, M. Jurczyk, "Electrochemical Formation and Corrosion Properties of Porous TiOx Biomaterials", Materials Science Forum, Vols. 636-637, pp. 15-21, 2010
Online since
January 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Rong Fa Zhang, Da Yong Shan, En Hou Han
Abstract:Among four AZ91 samples, two were once anodized and the others were twice anodized in two electrolytic baths. After twice anodization, two...
653
Authors: Li Wang, Wen Fu, Li Chen
Abstract:In order to get a clear picture for describing the growth process of plasma electrolytic oxidation coatings under escalating voltage...
720
Authors: Xi Feng Zhang, Hong Xia Dong, Ke Wei Li, Yu Wang
Chapter 7: Materials Engineering, Chemical Engineering and Materials Processing Technologies
Abstract:This article presents the dependence of porous silicon (PSi) morphology on preparation conditions and the coalition between morphology and...
2667
Authors: Yu Ping Li, Xiu Hua Chen, Wen Hui Ma, Shao Yuan Li, Ping Bi, Xue Mei Liu, Fu Wei Xiang
Chapter 2: Materials and Technology for Electrotechnic, Electronic and Photovoltaic Devices
Abstract:Stain etching, one step metal assisted chemical etching (1-MACE) and two-step metal assisted chemical etching (2-MACE) were used for...
97