Synthesis and Properties of Hydroxyapatite-Containing Porous Titania Coating on Titanium by Ultrasonic Shot Peening and Micro-Arc Oxidation

Abstract:

Titanium with surface nanostructure has superior mechanical and biological properties, which benefits titanium implants. To further improve the bioactivity of Ti surfaces, Ca/P-containing porous titania coatings were prepared on Ti with surface nanostructure by ultrasonic shot peening (USP) and micro-arc oxidation (MAO). The phase identification, composition, morphology and microstructure of the coatings of Ti with surface nanostructure during MAO were investigated subsequently. The amounts of Ca, P and the Ca/P ratio of the coatings formed on Ti with surface nanostructure were greater than those on coarse-grained Ti. Incubated in a simulated body fluid, bone-like apatite was completely formed on the surface of Ti, thus evidencing preferable bioactivity.

• Periodical: Advanced Materials Research (Volumes 690-693)
• Pages: 2081-2084
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.690-693.2081
• Online since: May 2013
• Authors: Zhen Nan Deng, Jin Song Liu, Yun He, Si Qian Wang, Jian Feng Ma
• Keywords: Coating, Micro-Arc Oxidation (MAO), Nanocrystalline Hydroxyapatite, Surface Nanostructure, Ultrasonic Shot Peening

References

[1] Hao YL, Li SJ, Sun BB, Sui ML, Yang R. Ductile titanium alloy with low Poisson's ratio. Phys Rev Lett Vol.98 (2007, pp.216405-8

DOI: 10.1103/physrevlett.98.216405

[2] Bohdan NM, and Georgiy P. Ultrasonic impact peening for the surface properties management. J Sound Vibrat Vol. 308 (2007), pp.855-66

[3] Balazic M, Kopac J, Jackson M J, Ahmed W. Review: titanium and titanium alloy applications in medicine. Int J Nano Biomater Vol.1 (2007), pp.3-34

DOI: 10.1504/ijnbm.2007.016517

[4] Sergueeva AV, Stolyarov VV, Valiev RZ, Mukherjee AK. Superplastic behaviour of ultrafine-grained Ti6A14V alloys. Mater Sci Eng A Vol.323 (2003), pp.318-25

DOI: 10.1016/s0921-5093(01)01384-3

[5] Webster TJ, Ejiofor JU. Increased osteoblast adhesion on nanophase metals: Ti, Ti6Al4V and Co Cr Mo. Biomater Vol.25 (2004), pp.4731-9

DOI: 10.1016/j.biomaterials.2003.12.002

[6] Le Guehennec L, Soueidan A, Layrolle P, Amouriq Y. Surface treatments of titanium dental implants for rapid osseointegration. Dent Mater Vol.23 (2007), pp.844-54

DOI: 10.1016/j.dental.2006.06.025

[7] Han Y, Sun J, Huang X. Formation mechanism of HA-based coatings by microarc oxidation. Electrochem Commun Vol.10 (2008), pp.510-3