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The importance of particle size distribution on the plasma spraying of TiC

DOITrouver le DOI : https://doi.org/10.1016/0257-8972(87)90149-6
AuteurRechercher : 1; Rechercher : 1
Affiliation
  1. Conseil national de recherches Canada
FormatTexte, Article
Résumé
The particle size distribution of the spray material is recognized as an important parameter in plasma spraying, although it is still a subject of controversy. However, it stands to reason that all the particles impinging on the substrate must be in a molten state. Overheating of small particles leads to vaporization and loss in efficiency. Inadequately heated coarse particles result also in reduced efficiency and in poor quality coatings. Titanium carbide is a material of considerable interest, mostly in the hard surfacing industry and for high thermal flux protection. For TiC coatings prepared by plasma spraying, attempts have been made to produce dense coatings. Previous studies on gaseous environments and spraying parameters always resulted in porous deposits. This study assesses the influence of the particle size distribution on deposition efficiency and coating density. Commercial TiC powders were classified in different fractions and sprayed under selected spraying conditions. The results indicate that both the size and particle size distribution of powders play a decisive role with respect to deposition efficiency and coating density.
Date de publication
Maison d’éditionElsevier
Dans
  • Surface & Coatings Technology 31, nº 1 : 1–10.
Langueanglais
Publications évaluées par des pairsOui
Numéro du CNRCNRC-IGM86-301-267
NRC-IGM86-302-268
NRCC 25396
Exporter la noticeExporter en format RIS
Signaler une correctionSignaler une correction (s'ouvre dans un nouvel onglet)
Identificateur de l’enregistrement8866146b-edb9-4974-a91a-39f1b4eccc87
Enregistrement créé2019-11-06
Enregistrement modifié2020-03-17

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