Porous TiO2-ZrO2 thin film formed by electrochemical technique to improve the biocompatibility of titanium alloy in physiological environment

13th International Conference on Tribology

Benea, L.^1 ; Dnil, E.^1 ; Ponthiaux, P.^2

Competences Center: Interfaces - Tribocorrosion and Electrochemical Systems, Faculty of Engineering, Dunarea de Jos, University of Galati, Galati, Romania^1

Laboratoire Génie des Procédés Matériaux, Ecole Centrale Paris, Chatenay-Malabry, Paris

F-92290, France^2

关键词: Anodic oxidation method;    Biomedical applications;    Bone tissue engineering;    Electrochemical degradation;    Electrochemical performance;    Electrochemical techniques;    Open circuit potential measurements;    Physiological environment;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/174/1/012044/pdf
DOI  :  10.1088/1757-899X/174/1/012044

来源: IOP

【 摘 要 】

Porous Ti and Ti alloys have received increasing research interest for bone tissue engineering, especially for dental and orthopaedic implants because they provide cell ingrowths and vascularization, improving of adhesion and osseointegration. The tribocorrosion process is encountered in orthopaedic and dentistry applications, since it is known that the implants are often exposed to simultaneous chemical/electrochemical and mechanical stresses. The purpose of this study was to carry out a systematic investigation of the tribo-electrochemical performance of porous TiO2-ZrO2thin film formed by anodization of Ti-10Zr alloy surface in an artificial saliva solution and to compare the resulted performance with that of the untreated Ti-10Zr alloy surface in order to be applied for biomedical use. The in situ electrochemical technique used for investigation of tribo-electrochemical degradation was the open circuit potential (OCP) measurement performed before, during and after sliding tests. The results presented herein show that controlled anodic oxidation method can significantly improve the tribocorrosion and friction performances of Ti-10Zr alloy surface intended for biomedical applications.