PVD (Physical Vapor Deposition) coatings with TiN and TiNbN present several advantages in surgical instruments and medical devices. This process attributes a high toughness along with a low shear coefficient, giving the instrument a higher cut attribute, a high density, which makes it an excellent barrier to any aggressive chemical environment, and an excellent biocompatibility, presenting a low or inexistent diffusion rate, preventing the appearance of prosthesis material in the surrounding tissues.
Due to its properties of flexion resistance and fatigue resistance Ti is used in biomedical application in mechanical support, orthopedic and dental, and in pacemakers. The oxidation of titanium and its alloys in the implants surface is responsible for the corrosion resistance increase, and therefore its stability in vivo. These properties improve its behavior when implanted.
The anodization process accelerates the formation of the oxide layer under controlled conditions to provide the desired result. CERAMED developed two types of anodization treatments: grey anodization and color anodization.