Hydrothermal Synthesis of Strontium Titanate Bio-films on Ti6 Al4 V Alloy
SUN Jiamao
FU Tao
ZHANG Yaoren
Abstract：Ti6Al4V alloy was hydrothermally treated in the mixture solution of NaOH and Sr(NO3)2 at 180 ℃for 1,3 and 6 h.X-ray diffraction,scanning electron microscopy,energy dispersive of x-ray and x-ray photoelectron spectroscopy analyses showed that films consisting of SrTiO3 nanoparticles (size 80~230 nm)were formed on Ti6Al4V alloy after the hydrothermal treatments,and a small amount of Al and V existed in the films.Potentiodynamic polarization and electrochemical impedance spectroscopy tests in a Ca-free Hank’s balanced salt solution demonstrated that the hydrothermally treated sample (3 h)had much better corrosion resistance than the polished one.Micro-hardness indentation test showed that the SrTiO3 film had good adhesion and cohesion strength.The hy-drothermal method to synthesize SrTiO3 films has the potential application in surface modification of Ti6Al4V orthopedic implants.
Keywords：Titanium alloyHydrothermalStrontium titanateFilmOsteoporosisCorrosionAdhesion
Publication Date：2016-01-01
Online Publishing Date：2026-09-11(First online date of this platform, not the publication date of the document)
Pages：5( 245-249 )