Contact
    Start Publications Characterization of electron beam deposited Nb2O5 coatings for ...
    ←  Publication Finder
    Attension

    Characterization of electron beam deposited Nb2O5 coatings for biomedical applications

    Year: 2020

    Journal: J. Mech. Behav. Biomed. Mater., Volume 103, MAR

    Authors: Dinu, Mihaela; Braic, Laurentiu; Padmanabhan, Sibu C.; Morris, Michael A.; Titorencu, Irina; Pruna, Vasile; Parau, Anca; Romanchikova, Nadezhda; Petrik, Leslie F.; Vladescu, Alina

    Organizations: Romanian Ministry of Research and Innovation [18N/2019]; Romanian National Authority for Science Research and Innovation, CNCS/CCCDI-UEFISCDI [PN-III-P2-2.1-PED-2016-1580]; INOVA-OPTIMA SMIS [49164, 658/2014]; SFI IF grant [17IFB5435]; SFI Research Centre [12/RC/2278]

    Keywords: Electron beam deposition; Annealed niobium oxide coatings; Hardness; Reduced elastic modulus; Adhesion; Tribological properties; Corrosion resistance; Biocompatibility

    Niobium oxide coatings deposited on Ti6Al4N substrates by electron beam deposition and annealed in air at 600 degrees C and 800 degrees C were evaluated for their suitability towards dental, maxillofacial or orthopaedic implant applications. A detailed physico-chemical properties investigation was carried out in order to determine their elemental and phase composition, surface morphology and roughness, mechanical properties, wettability, and corrosion resistance in simulated body fluid solution (pH = 7.4) at room temperature. The biocompatibility of the bare Ti6Al4V substrate and coated surfaces was evaluated by testing the cellular adhesion and viability/proliferation of human osteosarcoma cells (MG-63) after 72 h of incubation. The coatings annealed at 800 degrees C exhibit more phase pure nanocrystalline Nb2O5 surfaces with enhanced wettability, reduced porosity and enhanced corrosion resistance properties making them good candidate for dental, maxillofacial or orthopaedic implant applications.
    View publication