Affiliation:
1. University of Shanghai for Science and Technology
Abstract
Hydroxyapatite crystals of various morphologies were grown on Ti-6Al-4V plates using Micro-arc oxidation (MAO) plus hydrothermal treatment. Phase identification was carried out by XRD. The mechanisms by which these HA crystals form is here discussed. It was deduced that HA formation depended on the degree of supersaturation of Ca and P ions in the treated solution. Various hydrothermal treatments with different degrees of supersaturation were designed and performed. Crystals with flake, needle-like, hexagonal column, and composite morphologies were obtained. The formation of different HA morphologies is discussed in terms of growth mechanisms. The effects of the degree of supersaturation of Ca and P ions on the morphologies of hydroxyapatite crystals are illustrated.
Publisher
Trans Tech Publications, Ltd.
Reference16 articles.
1. S. Overgaard, Calcium phosphate coating for fixation of bone implants. Acta Orthop Scand 71 (2000) 1–74.
2. K. Soballe, E.S. Hansen, H.B. Rasmussen, P.H. Jorgensen, C. Bunger, Tissue in growth into titanium and hydroxyapatite-coated implants during stable and unstable mechanical conditions. J Orthop Res 10 (1992) 85–99.
3. R.Z. LeGeros, Properties of osteoconductive biomaterials: calcium phosphates, Clin Orthop Relat Res 395(2002) 81–98.
4. M. Cavalli, G. Gnappi, A. Montenero, D. Bersani, P.P. Lottici, S. Kaciulis, Hydroxy-and fluorapatite films on Ti alloy substrates: sol-gel preparation and characterization. Journal of Materails Science 32 (2001) 53–60.
5. L. Sun, C.C. Berndt, K.A. Gross, A. Kucuk, Material fundamentals and clinical performance of plasma-sprayed hydroxyapatite coatings: a review, J Biomed Mater Res B 58(2001)70–92.
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