Sol-gel preparation and properties of Ag-TiO2 films on surface roughened Ti-6Al-4V alloy

被引：23

作者：

Fu, T. ^{[1
]}

Shen, Y. G. ^{[2
]}

Alajmi, Z. ^{[1
]}

Yang, S. Y. ^{[1
]}

Sun, J. M. ^{[1
]}

Zhang, H. M. ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Key Lab Biomed Informat Engn, Sch Life Sci & Technol, Minist Educ, Xian 710049, Peoples R China

[2] City Univ Hong Kong, Dept Mech & Biomed Engn, Kowloon, Hong Kong, Peoples R China

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2015年 / 31卷 / 04期

关键词：

TiO2; Ag; Antibacterial; Sol-gel; Corrosion; TIO2; FILM; THIN-FILMS; ANTIBACTERIAL; COATINGS; TITANIUM; BIOCOMPATIBILITY; NANOPARTICLES; ADHESION;

D O I：

10.1179/1743284714Y.0000000650

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ag-TiO2 films (Ag/Ti=3.3, 9.1 at-%) were sol-gel coated on Ti-6Al-4V alloy that had been surface roughened by the NaOH-HCl treatment for antibacterial applications. Scanning electron microscopy observation showed that pore size of the surface layer of NaOH-HCl treated Ti-6Al- 4V alloy increased with the NaOH concentration. Ag-TiO2 films on the surface roughened substrate were adherent and crack-free. X-ray photoelectron spectroscopy and Auger electron spectroscopy analyses indicated that Ag existed in metallic state, and the films completely covered the roughened substrate. X-ray diffraction peaks of the substrate and anatase TiO2 were detected. The Ag-TiO2 films on the roughened substrate exhibited good adhesion quality and high cohesion strength in the indentation test. The potentiodynamic polarisation test showed that the TiO2 and Ag-TiO2 films improved corrosion resistance of the substrate.

引用

页码：501 / 505

页数：5

共 31 条

[1] Surface analysis and biocorrosion properties of nanostructured surface sol-gel coatings on Ti6Al4V titanium alloy implants [J].