Properties of pulsed laser deposited fluorinated hydroxyapatite films on titanium
| Autor: | Valery V Smirnov, V. Rossi Albertini, Gaspare Varvaro, Amanda Generosi, Sara Laureti, Marco Fosca, S. M. Barinov, Daniela Ferro, Julietta V. Rau, S. Nunziante Cesaro |
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| Rok vydání: | 2010 |
| Předmět: |
Ceramics
Materials science Mechanical Engineering Analytical chemistry Laser Deposition chemistry.chemical_element Mechanical properties Substrate (electronics) Condensed Matter Physics Microstructure Fluence Pulsed laser deposition Fluorides chemistry Mechanics of Materials Surface roughness General Materials Science Crystallite Texture (crystalline) Composite material Titanium |
| Zdroj: | Materials research bulletin 45 (2010): 1304–1310. doi:10.1016/j.materresbull.2010.04.028 info:cnr-pdr/source/autori:Rau J.V., Smirnov V.V., Laureti S., Generosi A., Varvaro G., Fosca M., Ferro D., Nunziante Cesaro S., Rossi Albertini V., Barinov S.M./titolo:Properties of pulsed laser deposited fluorinated hydroxyapatite films on titanium/doi:10.1016%2Fj.materresbull.2010.04.028/rivista:Materials research bulletin/anno:2010/pagina_da:1304/pagina_a:1310/intervallo_pagine:1304–1310/volume:45 |
| ISSN: | 0025-5408 |
| DOI: | 10.1016/j.materresbull.2010.04.028 |
| Popis: | Fluorinated hydroxyapatite coated titanium was investigated for application as implant coating for bone substitute materials in orthopaedics and dentistry. Pulsed laser deposition technique was used for films preparation. Fluorinated hydroxyapatite target composition, Ca{sub 10}(PO{sub 4}){sub 6}F{sub 1.37}(OH){sub 0.63}, was maintained at 2 J/cm{sup 2} of laser fluence and 500-600 {sup o}C of the substrate temperature. Prepared films had a compact microstructure, composed of spherical micrometric-size aggregates. The average surface roughness resulted to be of 3 nm for the film grown at 500 {sup o}C and of 10 nm for that grown at 600 {sup o}C, showing that the temperature increase did not favour the growth of a more fine granulated surface. The films were polycrystalline with no preferential growth orientation. The films grown at 500-600 {sup o}C were about 8 {mu}m thick and possessed a hardness of 12-13 GPa. Lower or higher substrate temperature provides the possibility to obtain coatings with different fine texture and roughness, thus tayloring them for various applications. |
| Databáze: | OpenAIRE |
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