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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
engineering
Modelling the nucleation process in alumina lamellae deposited on a steel substrate
International Journal of Thermal Sciences, Volume 49, No. 3, Year 2010
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Description
A one-dimensional model has been developed to address the non-equilibrium heat transfer between an alumina lamella deposited by plasma spraying, and a steel or alumina substrate. The model includes under-cooling phenomenon, heterogeneous nucleation and crystal growth kinetics, allowing for the prediction of the temperature evolution in the lamella and substrate and of the nucleation temperature, grain density and size distribution. The effect on the nucleation process of the contact angle between the nucleus and substrate surface and of the quality of the contact at the splat-substrate interface is emphasized. The influence of the splat thickness, substrate material and substrate oxidation on the grain size distribution is also discussed. © 2009 Elsevier Masson SAS. All rights reserved.
Authors & Co-Authors
Mebdoua-Lahmar, Yamina
Algeria, Algiers
Centre de Développement Des Technologies Avancées
Vardelle, Armelle M.
France, Limoges
Université de Limoges
Fauchais, Pierre L.
France, Limoges
Université de Limoges
Gobin, Dominique
France, Orsay
Fluides, Automatique et Systèmes Thermiques
Statistics
Citations: 20
Authors: 4
Affiliations: 3
Identifiers
Doi:
10.1016/j.ijthermalsci.2009.09.011
ISSN:
12900729