Title: On the use of Fluidised Bed Coating (FBC) to deposit thin Al₂O₃ films onto metal substrates

Authors: Massimiliano Barletta, Annamaria Gisario, Luca Lusvarghi

Addresses: Dipartimento di Ingegneria Meccanica, Universita degli Studi di Roma Tor Vergata, Via del Politecnico, 1 – 00133 Roma. ' Dipartimento di Ingegneria Meccanica, Universita degli Studi di Roma Tor Vergata, Via del Politecnico, 1 – 00133 Roma. ' Dipartimento di Ingegneria dei Materiali e dell'Ambiente, University of Modena e Reggio Emilia, Via Vignolese, 905, 41100, Modena, Italy

Abstract: Fluidised Bed Coating (FBC) is a viable and low-cost technique to apply, at ambient temperature, thin adherent ceramic coatings onto metal and non metal substrates. Al₂O₃ films, by virtue of its special thermo-mechanical, chemical, electrical and optical properties, belong to a class of ceramic coatings of particular interest in several manufacturing processes. In this respect, the present paper reviews selected applications in manufacturing of Al₂O₃ coated aluminium substrates. In particular, the use of fluidised bed deposited thin Al₂O₃ films has been reported as surface overlay coatings to improve the fatigue behaviour of aluminium components, as absorption and thermal barrier coatings in sheet laser forming and, finally, as anti-wear protective coatings.

Keywords: fluidised bed coatings; aluminium oxide coatings; fatigue; sheet laser forming; anti-wear protective coatings; ceramic coatings; thin films.

DOI: 10.1504/IJMPT.2009.025690

International Journal of Materials and Product Technology, 2009 Vol.35 No.3/4, pp.407 - 424

Published online: 23 May 2009 *

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