Journal of Electronic Materials

, Volume 20, Issue 12, pp 479–483 | Cite as

Pulsed laser treatment of plasma sprayed coatings

  • S. Dallaire
  • P. Cielo


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 µ s 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.


Metallurgical Transaction Peak Power Pulse Length Molten Material Nickel Coating 


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  1. 1.
    J.D. Ayers and R. J. Shaefer: Report of NRL Progress, May 1979, pp. 8–9.Google Scholar
  2. 2.
    R. J. Pangbom and D.R. Beaman:J. Appl. Phys., 1980, vol. 51, pp. 5992–93.CrossRefADSGoogle Scholar
  3. 3.
    W. D. Munay and F. Landis:Trans. ASME, 1959, vol. 81, pp. 106–12.Google Scholar
  4. 4.
    W. L. Heitz and J. W. Westwater:Int. J. of Heat and Mass Transfer, 1970, vol. 13, pp. 1371–75.CrossRefGoogle Scholar
  5. 5.
    T.W. Zavecz and M.S. Saifi:Appl. Phys. Lett., 1975, vol. 26 (4), pp. 165–68.CrossRefGoogle Scholar
  6. 6.
    Y.S. Touloukian and D.P. Dewitt:Thermophysical Properties of Matter, Thermal Radiative Properties of Metallic Elements and Alloys, IFl/Plenum, New York, NY, 1970, vol. 7, pp. 413–62.Google Scholar
  7. 7.
    C. J. Smithells, ed.:Metals Reference Book, 5th edition, Butterworths, London, 1976, p. 945.Google Scholar

Copyright information

© American Society for Metals and the Metallurgical Society of AIME 1982

Authors and Affiliations

  • S. Dallaire
    • 1
  • P. Cielo
    • 1
  1. 1.Industrial Materials Research InstituteNational Research Council CanadaMontrealCanada

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