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Pulsed laser treatment of plasma sprayed coatings

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Abstract

A pulsed CO2-TEA laser was used to melt the surface of plasma-sprayed coatings. An analysis of the laser parameters on the heat transfer is made: the melt depth and the surface temperature were calculated for different laser inputs. It was found that the pulse length must be in the range of 20 to 40 μs in order to fill up the pores of the coating and to keep the surface temperature below the boiling range. Experimental results on surface modification are explained in terms of power density.

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Authors and Affiliations

  1. National Research Council Canada, Industrial Materials Research Institute, H4C 2K3, Montreal, Québec, Canada

    S. Dallaire (Research Officer) & P. Cielo (Research Officer)

Authors
  1. S. Dallaire
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  2. P. Cielo
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Dallaire, S., Cielo, P. Pulsed laser treatment of plasma sprayed coatings. Metall Trans B 13, 479–483 (1982). https://doi.org/10.1007/BF02667764

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  • DOI: https://doi.org/10.1007/BF02667764

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