Loading...

Synthesis of Tin and Ti2n Nanostructured Coatings on Ti alloys Using Magnetron Sputtering System And Comparison of Their Biocompatibility Properties

Kalantari Saghafi, Mahsa | 2018

834 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 50673 (07)
  4. University: Sharif University of Technology
  5. Department: Materials Science and Engineering
  6. Advisor(s): Nemati, Ali; Khamse, Sara
  7. Abstract:
  8. Considering the importance of biocompatibility of implantable prothesis’, metallic alloys have weaker corrosion resistance than ceramics. In order to extend usage of nanomaterials to improve the bio-properties of materials, Nano-structured ceramic coatings are being suggested to improve corrosion resistance and biocompatibility of prosthesis. Meanwhile, very good properties of TiN, such as corrosion resistance and mechanical properties as a thin film coating are undeniable. In this study, TiN and Ti2N thin film were deposited on Ti-based substrate, using PVD and Magnetron sputtering at different argon to nitrogen ratio. The crystal structure of the films was examined using Grazing XRD analysis, morphology and microstructure by SEM analysis. Other physical and chemical properties of thin film were investigated such as hardness, corrosion resistance and contact angle. Finally, the biocompatibility properties of the coatings were evaluated by MTT assay. X-ray diffraction results indicate the formation of TiN and mixture of TiN and Ti2N. Samples containing TiN + Ti2N and TiN phases had the lowest contact angle of 89.55 and 92, respectively. The highest hardness values were obtained to be 28.1 GPa and 19.6 GPa, respectively. These samples showed better corrosion and biocompatibility properties
  9. Keywords:
  10. Ceramic Coating ; Biocompatibility ; Sputtering ; Biomaterials ; Thin Films ; Titanium Nitride Nanoparticles ; Nanostructured Coating

 Digital Object List

 Bookmark

No TOC