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Oxidation Of Titanium In Alpha-Calf Serum Solution, Ali Stait Ismailoglu
Oxidation Of Titanium In Alpha-Calf Serum Solution, Ali Stait Ismailoglu
Masters Theses
Titanium and its alloys have been used extensively in orthopedic implants mainly because of its excellent biocompatibility. This biocompatibility is attributed to its surface oxide film (3-7 nm thickness) that forms immediately upon exposure of titanium to air. In the research, the oxidation of Ti-6Al-4V in alpha-calf serum solution was studied. Four different immersion times were tested. Characterization of surface topography and its chemical composition was examined using Atomic force microscopy (AFM), Fourier transform-infrared radiation (FT-IR), and X-ray photoelectron spectroscopy (XPS). The AFM results clearly show the gradual change that occurred in the samples topography which is associated with more-rounded …
Structure And Spectroscopy Of Polymer Ultra Thin Films And Nanocomposites, Ramesh Chandra Kattumenu
Structure And Spectroscopy Of Polymer Ultra Thin Films And Nanocomposites, Ramesh Chandra Kattumenu
Masters Theses
This research involves the study of structure and properties of polymer composite thin films. The intrinsic relation between the morphology and thickness of polymer thin films is the main idea behind this research. Polymer films with thickness in the range of 3nm to 600nm (comparable with the characteristic molecular length scale - radius of gyration) are studied for changes in morphology with temperature and thickness using Atomic Force Microscopy and Raman spectroscopy. The study of very thin polymer films using Force Modulation technique with AFM and Surface Enhanced Raman Spectroscopy showed that polymers could be characterized with these techniques at …