Structure and mechanical properties of three-dimensional capillary-porous titanium coatings on intraosteal implants
We developed a process of plasma wire spraying of three-dimensional capillary porous titanium coatings for intraosteal implants with the use of two additional arc discharges between the plasma gun and the wire and between the plasma gun and the substrate. By raising the temperature of sprayed particles and activating the substrate, we enhanced the shear strength up to 120 MPa for a titanium coating having the porosity of 46%.
Keywordsintraosteal implants plasma spraying three-dimensional capillary-porous titanium coatings additional arc discharges shear strength
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- 2.Sahay, V., Lare, P.J., and Hahn, H., Physical and mechanical characterization of porous coatings for medical and dental devices. Thermal spray, research and application, in Proc. 3rd Nat. Thermal Spray Conf., Long Beach, CA. USA, pp. 425–430.Google Scholar
- 3.Harris, D.H., Bioinert CP–Ti and Ti–6Al–4V Coatings by the Arc-plasma Spray Process, Daytom: Titanium Development Assoc., 1990.Google Scholar
- 5.Borsari, V., Giavaresi, G., Fini, M., Torricelli, P., Salito, A., Chiesa, R., Chiusoli, L., Volpert, A., Rimondini, L., and Giardino, R., Physical characterization of different-roughness titanium surfaces, with and without hydroxyapatite coating, and their effect on human osteoblast-like cells, J. Biomed. Mater. Res. J. Part B: Appl Biomater., 2005, vol. 75, pp. 359–368.CrossRefGoogle Scholar
- 6.Borsari, V., Fini, M., Giavaresi, G., Tschon, M., Chiesa, R., Chiusoli, L., Salito, A., Rimondini, L., and Giardino, R., Comparative in vivo evaluation of porous and dense duplex titanium and hydroxyapatite coating with high roughnesses in different implantation environments, J. Biomed. Mater. Res. A, 2009, vol. 89, pp. 550–560.CrossRefGoogle Scholar
- 7.Kalita, V.I. and Gnedovets, A.G., Plasma spraying of capillary porous coating: Experiments, modeling, and biomedical applications, Plasma Processes and Polymers, 2005, vol. 2, pp. 485–492.Google Scholar
- 8.Gnedovets, A.G., Kalita, V.I., Komlev, D.I., Yerokhin, A.L., and Matthews, A., Plasma spraying of capillary- porous coatings: experiments, modeling and applications, in IVC-16/ICSS-12/NANO-8, Venice, 2004, pp. 398–399.Google Scholar
- 9.Kalita, V.I., Bocharova, M.A., Gnedovets, A.G., Truchnicova, A.S., Yerokhin, A.L., Matthews, A., and Shaternicov, B.N., Structure and mechanical properties of novel plasma sprayed titanic capillaryporous for intrabone implants, in IVC-16/ICSS-12/NANO-8, Venice, 2004, pp. 58–59.Google Scholar
- 10.Kalita, V.I., Trushnikova, A.S., Bocharova, M.A., and Shaternikov, B.N., Surface structure of titanium materials intended for interosseous implants, Russ. Metall. (Metally), 2005, vol. 3, pp. 282–288.Google Scholar
- 11.Kalita, V.I., Gnedovets, A.G., Mamaev, A.I., Mamaeva, V.A., Malanin, D.A., and Pisarev, V.B., Plasma deposited bioactive porous coatings for intrabone implants, in Abstracts and Full-Papers CD of 17th Int. Symp. on Plasma Chemistry (ISPC-17), Toronto, Canada. 2005, CD Paper 535, pp. 1105–1106.Google Scholar