Full text
| |
| Author(s): |
André Luís Paschoal
Total Authors: 1
|
| Document type: | Master's Dissertation |
| Press: | São Carlos. |
| Institution: | Universidade de São Paulo (USP). Instituto de Física de São Carlos (IFSC/BT) |
| Defense date: | 1998-07-16 |
| Examining board members: |
Lauralice de Campos Franceschini Canale;
Jose Pedro Andreeta;
Olga Zazuco Higa
|
| Advisor: | Lauralice de Campos Franceschini Canale |
| Abstract | |
Metals are very much used as implantable materials mainly for the construction of devices orthopaedic area. There is a constant concern about the corrosion process in those metallic biomaterials due to the aggressiveness of the physiological environment. By using four types of metals and metallic alloys pure titanium, titanium alloy, low carbon stainless steel and cobalt-chromium alloy the corrosion process in physiologic environment has been studied. Also, the performance of such materials coated with titanium nitrate was evaluated. Two PVD coating methods evaporation and magnetron sputtering were performed, and the efficiency of those materials in physiologic medium was verified. The best behaviour was found by the evaporation coating method. The predominant corrosion mechanism for coated samples was suggested. (AU) | |