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Proceedings Paper

Growth of polycrystalline hydroxyapatite thin films by pulsed laser deposition and subsequent heat treatment in air
Author(s): V. D. Nelea; Cornel Ghica; C. Martin; Alexandru Hening; Ion N. Mihailescu; Leona C. Nistor; Valentin S. Teodorescu; Rodica Alexandrescu; J. Werckmann; Eniko Gyorgy; Gheorghe Marin
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Paper Abstract

Hydroxyapatite (HA), Ca10(PO4)6(OH)2, is the primary constituent of the human bone and one of the best biocompatible materials. In this work we developed a simple method for the deposition of polycrystalline HA thin films onto various collectors including substrates of medical interest (e.g. Ti). We proceeded by the pulsed laser deposition of HA targets onto parallel collectors placed at (2-5) cm in vacuum. After deposition the films were heated in air at 500 degree(s)C for 30 minutes. The heated film has a structure which appears in electron diffraction as identical to the structure of the base material. The obtained films are uniform and very adherent to the substrate. The P/Ca atomic ratio, determined by energy dispersive X-ray analysis, was found to be close to that characteristic to HA, for the post-depositing heated films.

Paper Details

Date Published: 2 July 1998
PDF: 7 pages
Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); doi: 10.1117/12.312755
Show Author Affiliations
V. D. Nelea, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Cornel Ghica, National Institute of Materials Physics (Romania)
C. Martin, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Alexandru Hening, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Ion N. Mihailescu, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Leona C. Nistor, National Institute of Materials Physics (Romania)
Valentin S. Teodorescu, National Institute of Materials Physics (Romania)
Rodica Alexandrescu, National Institute for Laser, Plasma, and Radiation Physics (Romania)
J. Werckmann, Institute of Physics and Chemistry of Materials (France)
Eniko Gyorgy, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Gheorghe Marin, National Institute for Laser, Plasma, and Radiation Physics (Romania)


Published in SPIE Proceedings Vol. 3405:
ROMOPTO '97: Fifth Conference on Optics
Valentin I. Vlad; Dan C. Dumitras, Editor(s)

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