Physicochemical investigation of pulsed laser deposited carbonated hydroxyapatite films on titanium (Articolo in rivista)

Type
Label
  • Physicochemical investigation of pulsed laser deposited carbonated hydroxyapatite films on titanium (Articolo in rivista) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/am900356e (literal)
Alternative label
  • Rau J.V. (1), Generosi A. (1), Laureti S. (2), Komlev V.S. (3), Ferro D. (4), Nunziante Cesaro S. (4), Paci B. (1), Rossi Albertini V. (1), Agostinelli E. (2), Barinov S.M. (3) (2009)
    Physicochemical investigation of pulsed laser deposited carbonated hydroxyapatite films on titanium
    in ACS applied materials & interfaces (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Rau J.V. (1), Generosi A. (1), Laureti S. (2), Komlev V.S. (3), Ferro D. (4), Nunziante Cesaro S. (4), Paci B. (1), Rossi Albertini V. (1), Agostinelli E. (2), Barinov S.M. (3) (literal)
Pagina inizio
  • 1813 (literal)
Pagina fine
  • 1820 (literal)
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  • 1 (literal)
Rivista
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  • http://dx.doi.org/10.1021/am900356e (literal)
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  • 8 (literal)
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  • 8 (literal)
Note
  • ISI Web of Science (WOS) (literal)
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  • 1) Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, Via del Fosso del Cavaliere 100, 00133 Rome, Italy; 2) Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, Via Salaria km 29.300, 00016 Monterotondo Scalo (RM), Italy; 3) A. A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninsky prospect 49, 119991 Moscow, Russia; 4) Istituto per lo Studio dei Materiali Nanostrutturati, Consiglio Nazionale delle Ricerche, Piazzale Aldo Moro 5, 00185 Rome, Italy; (literal)
Titolo
  • Physicochemical investigation of pulsed laser deposited carbonated hydroxyapatite films on titanium (literal)
Abstract
  • Carbonated hydroxyapatite (CHA)-coated titanium can find wide applications as bone substitute implant in bone and dental surgery and orthopedics, promoting osseointegration with a host bone and ensuring biocompatibility and bioactivity. In this work, carbonated hydroxyapatite films were prepared on titanium substrates by pulsed laser deposition at different substrate temperatures ranging from 30 to 750 °C. The properties of films were investigated by scanning electron microscopy, atomic force microscopy, energy-dispersive X-ray diffraction, and Fourier transform infrared spectroscopy. Vickers microhardness measurements of the composite film-substrate systems were performed, and the intrinsic hardness of films was separated from the composite hardness using a “law-of-mixtures” approach and taking into account the indentation size effect. The prepared CHA films are nearly stoichiometric with a Ca/P atomic ratio of 2.0-2.2. The films deposited in the 30-500 °C temperature range are about 9 ¼m thick, amorphous, having an average roughness of 60 nm. At higher temperature, 700-750 °C, the films are about 4 ¼m thick, show a finer surface morphology and an average roughness of 20 nm. At 750 °C the films are amorphous, whereas at 700 °C they are crystalline and textured along the (202) and (212) directions. The intrinsic hardness of the films increased with an increase in substrate temperature, being as low as 5 GPa at 30 °C and reaching a high value of 28 GPa at 700 °C. The rich information gained by the joint use of the mentioned techniques allowed a comprehensive characterization of this system. (literal)
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