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Effects of Nb addition on the formation and morphology of TiO2 nanotubes in Ti alloys

Grant number: 19/06261-7
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): June 01, 2019
Effective date (End): May 31, 2020
Field of knowledge:Engineering - Materials and Metallurgical Engineering - Physical Metallurgy
Principal Investigator:Rubens Caram Junior
Grantee:Fernando Karim Said Ribeiro
Host Institution: Faculdade de Engenharia Mecânica (FEM). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil


The formation of a nanostructured TiO2 layer in components based on titanium alloys is an efficient way to increase the chances of success in orthopedic and dental implant surgeries. The main objective of this research project is to evaluate the preparation of TiO2 nanotube layers on samples of Ti-Nb alloys. These alloys form the basis of Ti alloys already commercially used in orthopedic implants, have low elastic modulus, reasonable mechanical strength and are biocompatible. This work will involve preparation of Ti-Nb alloys with different Nb contents using arc-melting under an inert atmosphere. Samples produced will be plastically formed and anodized using HF-based electrolytes. These samples will be characterized using scanning electron microscopy and X-ray diffraction technique. The development of this research will allow us to know the effect of Nb on the formation of nanotubes in Ti alloys.

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