Relevance of a thermal contact resistance depending on the solid/liquid phase change transition for sprayed composite metal/ceramic powder by direct current plasma jets

Mohamed Bouneder; Mohammed El Ganaoui; Bernard Pateyron; Pierre Fauchais

doi:10.1016/j.crme.2008.05.001

Relevance of a thermal contact resistance depending on the solid/liquid phase change transition for sprayed composite metal/ceramic powder by direct current plasma jets

Presented by: Évariste Sanchez-Palencia

Mohamed Bouneder ¹; Mohammed El Ganaoui ¹ ; Bernard Pateyron ¹; Pierre Fauchais ¹

¹ Université de Limoges, SPCTS – UMR 66 38 CNRS, Faculté des sciences et techniques, 123, avenue Albert-Thomas, 87060 Limoges, France

Comptes Rendus. Mécanique, Volume 336 (2008) no. 7, pp. 592-599.

Abstract
Résumé

The thermal contact between layers plays a key role in the behaviour of composite particles (mechanofused) subjected to a high temperature jet (example of two layers metal/ceramic particles under plasma spraying). This work underlines the interest of considering a thermal contact resistance varying with the melting state of the two components along the full process. The computational model considers the time-dependent state of the particle during its flight with coupled transfers and solid/liquid/vapor phase changes.

Le contact thermique entre couches, joue un rôle important dans le comportement des particules composites à haute température (par exemple, les particules bicouches métal/céramique en projection plasma fabriquées par mécanofusion). Ce travail met en évidence l'intérêt de considérer un contact thermique fonction de l'état de fusion des deux couches sur l'ensemble du procédé de projection thermique. Le modèle prend en compte l'évolution de l'état de la particule le long de son parcours en couplant transferts et changements de phase solide/liquide/vapeur.

Received: 2007-09-02
Accepted: 2008-04-22
Published online: 2008-06-03

DOI: 10.1016/j.crme.2008.05.001

Keywords: Solid–liquid–vapor phase change, Two layer particles, Thermal contact resistance
Mots-clés : Changement de phase solide–liquide–vapeur, Particules bicouche, Résistance thermique de contact

Author's affiliations:

Mohamed Bouneder ¹; Mohammed El Ganaoui ¹; Bernard Pateyron ¹; Pierre Fauchais ¹

¹ Université de Limoges, SPCTS – UMR 66 38 CNRS, Faculté des sciences et techniques, 123, avenue Albert-Thomas, 87060 Limoges, France

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     author = {Mohamed Bouneder and Mohammed El Ganaoui and Bernard Pateyron and Pierre Fauchais},
     title = {Relevance of a thermal contact resistance depending on the solid/liquid phase change transition for sprayed composite metal/ceramic powder by direct current plasma jets},
     journal = {Comptes Rendus. M\'ecanique},
     pages = {592--599},
     publisher = {Elsevier},
     volume = {336},
     number = {7},
     year = {2008},
     doi = {10.1016/j.crme.2008.05.001},
     language = {en},
}

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Mohamed Bouneder; Mohammed El Ganaoui; Bernard Pateyron; Pierre Fauchais. Relevance of a thermal contact resistance depending on the solid/liquid phase change transition for sprayed composite metal/ceramic powder by direct current plasma jets. Comptes Rendus. Mécanique, Volume 336 (2008) no. 7, pp. 592-599. doi : 10.1016/j.crme.2008.05.001. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2008.05.001/

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