Preparation and characteristics of patterned TiO_2 thin film on TC4 made by sol-gel method
- VernacularTitle:钛合金表面TiO_2图案化薄膜的溶胶凝胶法制备及其性能研究
- Author:
Ying LIU
1
;
Wen-Guang ZHANG
Author Information
1. 上海交通大学
- Keywords:
Patterned TiO_2 thin film;
Titanium alloys;
Sol-gel method;
Tribological property;
Wear resistance
- From:
Journal of Medical Biomechanics
2010;25(1):21-25
- CountryChina
- Language:Chinese
-
Abstract:
Objective To improve the long-term biocompatibility and mechanical stability of Titanium alloy implants.Method Micro-nano patterned TiO_2 thin films have been prepared on TC4 substrates via a sol-gel dipcoating method with Ti(OC_4H_9)_4(TEOT)as precursor and polyethylene glycol(PEG)as organic template.The Influence of PEG concentration upon the morphology of the target films has been studied by using AFM.The wettability and tribological properties of the target films have been studied by means of optical contact angle measuring instrument and UMT-2.Results When increasing the PEG concentration to 3.5 g/100 mL,a parallel arranged groove structure can be obtained on the surface of the sample;compared with TiO_2 sol-gel film without adding organic template,the wear resistance of the patterned film is better.Conclusions The feature of the patterned TiO_2 films can be controlled by adding different amount of Organic template;and it has been proved that a certain kind of patterned structure can imeprove the wear resistance of the film.
