Hanawa T
Shika Zairyo Kikai. 1989 Nov;8(6):832-44.
In order to understand the interface-phenomena between titanium and biological tissue, the surface film formed on titanium in electrolytic solutions was examined using X-ray photoelectron spectroscopy (XPS). The composition of the surface film on titanium before immersion into solution is close to TiO2 and that of Ti-6 Al-4 V is a mixture of TiO2 and Al2O3. These surface films change to a complex phosphate of titanium and calcium containing hydroxyl radicals and hydrates when the specimens are immersed in an electrolytic solution. The compositions of the surface films of titanium and Ti-6 Al-4 V are almost the same except that the film on Ti-6 Al-4 V is thicker and contains more hydrates than that on titanium. Vanadium in Ti-6 Al-4 V, and sodium, chlorine, and sulfur in the solution are not responsible for the formation of the films.
为了了解钛与生物组织之间的界面现象，采用X射线光电子能谱（XPS）对在电解液中钛表面形成的薄膜进行了检测。浸入溶液之前钛表面薄膜的成分接近TiO₂，而Ti-6Al-4V表面薄膜的成分是TiO₂和Al₂O₃的混合物。当将试样浸入电解液中时，这些表面薄膜会转变为含有羟基自由基和水合物的钛和钙的复合磷酸盐。钛和Ti-6Al-4V表面薄膜的成分几乎相同，只是Ti-6Al-4V表面的薄膜更厚，且比钛表面的薄膜含有更多的水合物。Ti-6Al-4V中的钒以及溶液中的钠、氯和硫与薄膜的形成无关。
