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Behavior of plasma‐sprayed TiC coatings under electron beam thermal shocks

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1116/1.572823
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Affiliation
  1. National Research Council Canada
FormatText, Article
Abstract
Within the framework of a research program on materials for fusion machine, plasma‐sprayed TiC coatings over Inconel 625 substrates were investigated. In order to evaluate the potential of these coatings in fusion environment, the existing thermal flux conditions on limiters of tokamaks are simulated with an electron beam thermal shock experiment. TiC coatings sprayed in air show severe damages when exposed to 2.5  kW  cm⁻², 1.0  s, heat pulses. Coatings sprayed in an inert gas enclosure withstood 3.0 kW cm⁻², 1.0 s, heat pulses without melting. Surface melting and subsurface crystal growth are observed in the case of coatings sprayed in air.
Publication date
PublisherAVS
In
  • Journal of Vacuum Science and Technology A : Vacuum, Surfaces, and Films 3, no. 6: 2503–2505.
LanguageEnglish
Peer reviewedYes
NRC numberCNRC 26825
NRC-IGM85-301-187
NPARC number23004031
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Record identifier6299c145-ac2f-4f04-8535-1516dc4ba0a1
Record created2018-09-18
Record modified2020-03-17
Date modified: