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Aerosol-gel-derived Microcrystalline Hydroxyapatite Coatings

Published online by Cambridge University Press:  31 January 2011

M. Manso ,
J. M. Martínez-Duart ,
M. Langlet ,
C. Jiménez ,
P. Herrero  and
E. Millon
M. Manso*
Affiliation:
Dpto F’sica-Aplicada C-XII, Universidad Auto’noma de Madrid, 28049 Madrid, Spain
J. M. Martínez-Duart
Affiliation:
Dpto F’sica-Aplicada C-XII, Universidad Auto’noma de Madrid, 28049 Madrid, Spain
M. Langlet
Affiliation:
Laboratoire de Matériaux et de Génie Physique, UMR 5628, ENSPG-INPG, 46, Domaine Universitaire, Saint Martin d'Héres, France
C. Jiménez
Affiliation:
Laboratoire de Matériaux et de Génie Physique, UMR 5628, ENSPG-INPG, 46, Domaine Universitaire, Saint Martin d'Héres, France
P. Herrero
Affiliation:
Instituto de ciencia de Materiales, ICMM-CSIC, 28049 Madrid, Spain
E. Millon
Affiliation:
Groupe de Physique des Solides, Universite’s Paris VII-VI, UMR CNRS 7588, Tour 23, Place Jussieu, Paris, Cedex 05, France
*
a)Address all correspondence to this author.
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Abstract

Highly porous microcrystalline hydroxyapatite (HAP) coatings have been prepared from calcium nitrate and phosphoric acid based sols by the aerosol-gel process. The coatings were studied after sintering at different temperatures with the use of Fourier transform infrared spectroscopy, x-ray diffraction, energy disperse x-ray microanalysis, scanning electron microscopy, and transmission electron microscopy. The composition, structure, and morphology of the coatings sintered at 650 °C fit fairly well highly porous HAP. These coatings were reproduced onto TiO2/Si substrates and studied by Rutherford backscattering. It is shown that even after chemical etching, an adherent calcium phosphate phase remains attached to the TiO2/Si substrate.

Type
Articles
Information
Journal of Materials Research , Volume 17 , Issue 6 , June 2002 , pp. 1482 - 1489
Copyright
Copyright © Materials Research Society 2002

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