ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 50, (1) 27 - 31 (2006)


SYNTHESIS AND STRUCTURAL ANALYSIS OF SOL GEL DERIVED STOICHIOMETRIC MONOPHASIC HYDROXYAPATITE
 
Balamurugan Anbalagan 1, Michel Jean 1, Fauré Joël 1, Benhayoune Hicham 1, Wortham Laurence 1, Sockalingum Ganesh 2, Banchet Vincent 3, Bouthors Sylvie 1, Laurent-Maquin Dominique 1, Balossier Gérard 1
 
1 INSERM ERM 0203, Laboratoire de Microscopie Electronique Analytique, Université de Reims, 21, Rue Clément Ader, 51685 Reims Cedex 2, France
2 Unité MéDIAN, CNRS UMR 6142, UFR de Pharmacie, Université de Reims,51, rue Cognacq-Jay, 51096 Reims cedex, France
3 Laboratoire de Tribologie et de Dynamique des Surfaces (LTDS), UMR CNRS 5513, Ecole Centrale de Lyon, département STMS, 36 avenue Guy de Collongue, 69134 Ecully, France

Keywords: Sol-gel, Monophasic, Hydroxyapatite (HAP), Biocompatible, Biomaterial
 

This paper reports on a novel sol-gel technique for synthesis phase pure hydroxyapatite Ca₁₀(PO₄)₆(OH)₂ powder. Triethyl phosphite and calcium nitrate were used as phosphorus and calcium precursors, when the stoichiometric Ca/P ratio 1.67 was maintained. The powders obtained were dried and calcined at different temperatures up to 900°C. X-ray diffraction analysis and Raman spectra showed the presence of phase pure HAP. The powders exhibited the FT-IR signature peaks of HAP. In addition, morphological characterizations of the HAP powder was carried out using STEM, EDXS and EELS. The STEM micrographs indicated mill-fractured surface of a HAP particles. The elemental composition analyzed by EDXS and EELS showed the powder calcined at 900°C contains monophasic stoichiometric HAP.


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