Microstructural comparison of the surfaces of Ti-6AL-4V and Ti-6Al-7Nb alloys with TiO2 deposition by plasma spray
Keywords:
Ti-6AL-4V alloy; Ti-6Al-7Nb alloy; Surface treatment; NaOH.Abstract
Metallic biomaterials in the oral cavity exposed to extreme conditions that affect it and reduce its biofunctionality. Surface modification by plasma spray oxide deposition is one of the methods used as an alternative to improve the bioactivity of Ti alloy implants. The objective of this work was to study the physicochemical surface characteristics of Ti-6Al-4V and Ti-6Al-7Nb alloys modified by TiO2 coating via plasma spray and thermochemical treatment with NaOH. The Ti-6Al-4V and Ti-6Al-7Nb alloys obtained in a cylindrical shape, sectioned in the longitudinal direction, and sectioned with dimensions of 20 mm in diameter and 2 mm in thickness, sanded and polished. The microstructure revealed using Kroll's solution. Then, titanium oxide (TiO2) powder deposition performed on Ti-6Al-4V and Ti-6Al-7Nb samples and submitted to thermochemical treatment with NaOH solution. The physical-chemical characterizations and elemental analysis performed using argon-induced plasma emission spectrometry (ICP), X-ray fluorescein spectrometry (XRF), scanning electron microscopy (SEM), X-ray diffraction (XRD). The results showed a rough and porous TiO2 coating morphology. TiO2 deposition resulted in an apparent mixture of stoichiometric and non-stoichiometric oxides on the substrate surface, in addition to presenting an optimization in the substrate/coating interaction with the NaOH treatment, leading to an increase in the surface area. It seen that the TiO2/Ti-6Al-4V/ and TiO2/Ti-6Al-7Nb systems present good chemical adhesion between substrate and coating, and the layer formed by the TiO2 coating associated with the treatment with NaOH presents a relevant level of porosity, being an important feature for osseointegration.
References
Albrektsson, T., Brånemark, P. I., Jacobsson, M., & Tjellström, A. (1987). Present clinical applications of osseointegrated percutaneous implants. In Plastic and Reconstructive Surgery 79(5), 721–730. https://doi.org/10.1097/00006534-198705000-00007
Alencar, A. (2002). Estudo das modificações na superfície do Ti cp titânio comercialmente puro e da liga Ti-6AI-4V usados como biomateriais utilizando-se deposição por plasma spray. Unesp, 71.
Boyd, A. R., Duffy, H., McCann, R., & Meenan, B. J. (2008). Sputter deposition of calcium phosphate/titanium dioxide hybrid thin films. Materials Science and Engineering C, 28(2), 228–236. https://doi.org/10.1016/j.msec.2006.12.004
Casaletto, M. P., Ingo, G. M., Kaciulis, S., Mattogno, G., Pandolfi, L., & Scavia, G. (2001). Surface studies of in vitro biocompatibility of titanium oxide coatings. Applied Surface Science, 172(1–2), 167–177. https://doi.org/10.1016/S0169-4332(00)00844-8
Cooper, L. F. (2000). A role for surface topography in creating and maintaining bone at titanium endosseous implants. Journal of Prosthetic Dentistry, 84(5), 522–534. https://doi.org/10.1067/mpr.2000.111966
De Almeida Filho, E., De Assis, C. M., Vercik, L. D. O., & Guastaldi, A. C. (2007). Biomateriais: Deposição de hidroxiapatita sobre superfície de Ti-cp modificada por aspersão térmica. Quimica Nova, 30(5), 1229–1232. https://doi.org/10.1590/s0100-40422007000500034
Fauchais PL, & Heberlein JVR, B. M. (2014). DC Plasma Spraying. In Thermal Spray Fundamentals (pp. 383–477). Springer, Boston, MA. https://doi.org/https://doi.org/10.1007/978-0-387-68991-3_7
He, D., Liu, P., Liu, X., Ma, F., Chen, X., Li, W., Du, J., Wang, P., & Zhao, J. (2016). Characterization of hydroxyapatite coatings deposited by hydrothermal electrochemical method on NaOH immersed Ti6Al4V. Journal of Alloys and Compounds, 672, 336–343. https://doi.org/10.1016/j.jallcom.2016.02.173
Khan, M. A., Williams, R. L., & Williams, D. F. (1999). The corrosion behaviour of Ti-6Al-4V, Ti-6Al-7Nb and Ti-13Nb-13Zr in protein solutions. Biomaterials, 20(7), 631–637. https://doi.org/10.1016/S0142-9612(98)00217-8
Kuroda, P. A. B., & Nascimento, M V; Grandini, C. R. (2020). Preparação e caracterização de uma liga de titânio com a adição de tântalo e zircônio para aplicações biomédicas Preparation and characterization of a titanium alloy with the addition of tantalum and zirconium for biomedical applications. Revista Materia, 25(2). https://doi.org/10.1590/s1517-707620200002.1041
M.J. Kadhim, M.H. Hafiz, M. A. A. bash. (2017). Microstructure and Phases Analysis for Advanced Plasma Sprayed Zirconia-Ceria- Yttria Thermal Barrier Coating. Engineering and Technology Journal, 35(10), 1025–1033.
Manam, N. S., Harun, W. S. W., Shri, D. N. A., Ghani, S. A. C., Kurniawan, T., Ismail, M. H., & Ibrahim, M. H. I. (2017). Study of corrosion in biocompatible metals for implants: A review. Journal of Alloys and Compounds, 701, 698–715. https://doi.org/10.1016/j.jallcom.2017.01.196
Manjaiah, M., & Laubscher, R. F. (2017). A review of the surface modifications of titanium alloys for biomedical applications. Materiali in Tehnologije, 51(2), 181–193. https://doi.org/10.17222/mit.2015.348
Minati, L., Migliaresi, C., Lunelli, L., Viero, G., Dalla Serra, M., & Speranza, G. (2017). Plasma assisted surface treatments of biomaterials. Biophysical Chemistry, 229(July), 151–164. https://doi.org/10.1016/j.bpc.2017.07.003
Mohammed, M. T., Khan, Z. A., Geetha, M., & Siddiquee, A. N. (2015). Microstructure, mechanical properties and electrochemical behavior of a novel biomedical titanium alloy subjected to thermo-mechanical processing including aging. Journal of Alloys and Compounds, 634, 272–280. https://doi.org/10.1016/j.jallcom.2015.02.095
Montanha, V. C. (2010). Modificação da superfície dp titânio e de sua liga Ti-6Al-4V por recobrimento com TiO2 e Hidroxiapatita [UNESP]. montanha_vc_tcc_botib.pdf (726.4Kb)
Niinomi, M., Nakai, M., Hieda, J., Cho, K., Kasuga, T., Hattori, T., Goto, T., & Hanawa, T. (2014). A review of surface modification of a novel low modulus β-type titanium alloy for biomedical applications. International Journal of Surface Science and Engineering, 8, 138–152. https://doi.org/10.1504/ijsurfse.2014.060487
Yeung, W. K., Reilly, G. C., Matthews, A., & Yerokhin, A. (2013). In vitro biological response of plasma electrolytically oxidized and plasma-sprayed hydroxyapatite coatings on Ti-6Al-4V alloy. Journal of Biomedical Materials Research - Part B Applied Biomaterials. https://doi.org/10.1002/jbm.b.32899
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