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Aerosol-gel-derived microcrystalline hydroxyapatite coatings

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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.

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Authors and Affiliations

  1. Dpto Física-Aplicada C-XII, Universidad Autónoma de Madrid, 28049, Madrid, Spain

    M. Manso & J. M. Martínez-Duart

  2. Laboratoire de Matériaux et de Génie Physique, UMR 5628, ENSPG-INPG, Domaine Universitaire, BP 46, Saint Martin d’Hères, France

    M. Langlet & C. Jiménez

  3. Instituto de ciencia de Materiales, ICMM-CSIC, 28049, Madrid, Spain

    P. Herrero

  4. Groupe de Physique des Solides, Universités Paris VII-VI, UMR CNRS 7588, Tour 23, 2 Place Jussieu, 75251, Paris, Cedex 05, France

    E. Millon

Authors
  1. M. Manso
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  2. J. M. Martínez-Duart
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  3. M. Langlet
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  4. C. Jiménez
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  5. P. Herrero
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  6. E. Millon
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Manso, M., Martínez-Duart, J.M., Langlet, M. et al. Aerosol-gel-derived microcrystalline hydroxyapatite coatings. Journal of Materials Research 17, 1482–1489 (2002). https://doi.org/10.1557/JMR.2002.0220

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  • DOI: https://doi.org/10.1557/JMR.2002.0220

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