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Influence of the coating thickness on the cooling rates of plasma-sprayed particles impinging on a substrate

Par Conseil national de recherches du Canada

DOITrouver le DOI : https://doi.org/10.1016/0257-8972(92)90111-M
AuteurRechercher : 1; Rechercher : 1; Rechercher : 1
Affiliation
  1. Conseil national de recherches du Canada. Institut des matériaux industriels du CNRC
FormatTexte, Article
ConférenceNational Thermal Spray Conference, NTSC'91, May 4-10, 1991, Pittsburg, Pennsylvannia, United States
Résumé
Thermal histories of plasma-sprayed molybdenum particles during and after impingement on different substrates were monitored using a fast two-colour pyrometer and the influence of the coating thickness on the lamella cooling rate was investigated. The cooling rate was found to increase with coating thickness owing to the low thermal resistance at the molybdenum-molybdenum lamella interfaces and to the relatively high thermal conductivity of the sprayed molybdenum lamellae. The lower cooling rates observed at the coating-substrate interface were associated with changes in the lamella microstructure, the lamellae within the coating having a columnar structure while this structure was absent in lamellae at the coating-substrate interface.
Date de publication
Maison d’éditionElsevier
Dans
  • Surface and Coatings Technology 53, nº 2 (septembre 1992) : 107–114.
Langueanglais
Publications évaluées par des pairsOui
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Identificateur de l’enregistrement10e544f3-3ab5-4f57-bbbc-fa69e8f701c6
Enregistrement créé2024-05-03
Enregistrement modifié2024-05-09
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