Sol-gel derived hydroxyapatite coatings on titanium substrate

A. Montenero, G. Gnappi, F. Ferrari, M. Cesari, E. Salvioli, L. Mattogno, S. Kaciulis, M. Fini

Research output: Contribution to journalArticle

Abstract

Biomaterials, in particular those used for orthopaedic prostheses, consist of a metallic substrate, exhibiting excellent mechanical properties, coated with a ceramic layer, which guarantees resistance to the corrosion and an elevated bioactivity. In this paper the preparation of sol-gel films of hydroxyapatite, HA (Ca10(PO4)6(OH)2), on titanium substrate is described. The samples were obtained through the dip-coating method, starting from a colloidal suspension of hydroxyapatite. In order to increase the adhesion between the HA film and the metallic substrate, the same substrate has been preliminarily coated either with titanium oxide, TiO2 (in the anatase or rutile phase), or calcium titanate, CaTiO3 (perovskite). Also these latter films have been deposited from a sol-gel solution. The characterization of the films through XRD, SEM, and AFM gave good results for the crystallinity of the deposited HA; for what concerns the sample morphology, the films turned out to be homogeneous and crack-free.

Original languageEnglish
Pages (from-to)2791-2797
Number of pages7
JournalJournal of Materials Science
Volume35
Issue number11
DOIs
Publication statusPublished - 2000

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Durapatite
Titanium
Hydroxyapatite
Sol-gels
Coatings
Substrates
Titanium oxides
Orthopedics
Biocompatible Materials
Prosthetics
Bioactivity
Biomaterials
Perovskite
Titanium dioxide
Calcium
Suspensions
Adhesion
Corrosion
Cracks
Mechanical properties

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Montenero, A., Gnappi, G., Ferrari, F., Cesari, M., Salvioli, E., Mattogno, L., ... Fini, M. (2000). Sol-gel derived hydroxyapatite coatings on titanium substrate. Journal of Materials Science, 35(11), 2791-2797. https://doi.org/10.1023/A:1004738900778

Sol-gel derived hydroxyapatite coatings on titanium substrate. / Montenero, A.; Gnappi, G.; Ferrari, F.; Cesari, M.; Salvioli, E.; Mattogno, L.; Kaciulis, S.; Fini, M.

In: Journal of Materials Science, Vol. 35, No. 11, 2000, p. 2791-2797.

Research output: Contribution to journalArticle

Montenero, A, Gnappi, G, Ferrari, F, Cesari, M, Salvioli, E, Mattogno, L, Kaciulis, S & Fini, M 2000, 'Sol-gel derived hydroxyapatite coatings on titanium substrate', Journal of Materials Science, vol. 35, no. 11, pp. 2791-2797. https://doi.org/10.1023/A:1004738900778
Montenero A, Gnappi G, Ferrari F, Cesari M, Salvioli E, Mattogno L et al. Sol-gel derived hydroxyapatite coatings on titanium substrate. Journal of Materials Science. 2000;35(11):2791-2797. https://doi.org/10.1023/A:1004738900778
Montenero, A. ; Gnappi, G. ; Ferrari, F. ; Cesari, M. ; Salvioli, E. ; Mattogno, L. ; Kaciulis, S. ; Fini, M. / Sol-gel derived hydroxyapatite coatings on titanium substrate. In: Journal of Materials Science. 2000 ; Vol. 35, No. 11. pp. 2791-2797.
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