Abstract
Abstract The structure and properties of TiNi/Al 2 O 3 /Ti-alloy composite implant materials consisting of a Ti-alloy body and active TiNi shape memory elements is discussed The structure of composites and ceramic/metal interfaces were evaluated by scanning electron microscopy (SEM), transmission electron microscopy (TEM), accompanied with energy and wave dispersive X-ray microanalysis (EDX, WDX). Mechanical testing of composite materials was performed using an Inova tensile/compression test machine. Bone/implant interaction and design parameters are also discussed. The structure of the TiNi alloy is modified in the casting process. Similar effects to those observed in the annealing process occurred in TiNi materials during casting and cooling of composites. The Ti-alloy matrix is composed of a mixture of α and β phases. The interaction between the ceramic layer and the metallic components depends on the cooling rate in the casting process. Different reaction products were identified on the Al 2 O 3 /metal interface with dependence on the applied cooling rate of the composite. The fatigue life of the investigated composites is greater than 10 7 cycles, and mechanical properties are sufficient to carry loads expected in human medicine. A newly developed smart implant enables quasielastic fixation with an active role of bone tissue in load carrying process, which has a positive impact on treatment.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
