Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1599466 | Acta Metallurgica Sinica (English Letters) | 2007 | 9 Pages |
Abstract
Sodium implanted titanium films with different ion doses were characterized to correlate their ion implantation parameters. Native titanium films and ion implanted titanium films were characterized with combined techniques of X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and light microscopy (LM). The surface presented increased sodium concentration on treated titanium films with ion dose increasing, except for the group with the highest ion dose of 4x1017ions/cm2. XPS depth profiling displayed that sodium entered titanium film around 25-50nm depth depending on its implantation ion dose. AFM characterization showed that sodium ion implantation treatment changed the surface morphology from a relatively smooth titanium film to rough surfaces corresponding to different implantation doses. After sodium implantation, implanted titanium films presented big particles with island structure morphology. The surface morphology and particle growth displayed the corresponding trend. Fibrinogen adsorption on these titanium films was performed to correlate with the surface properties of treated titanium films. The results show that protein adsorption on ion-implanted samples with dose of 2Ã1017 and 4Ã1017 are statistically higher (p<0.01) than samples treated with dose of 5Ã1016 and 1Ã1017, as well as the control samples.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
K.Y. Cai,