Journal of Materials Science

, Volume 31, Issue 23, pp 6325–6332 | Cite as

A simple method for the preparation of plasma-sprayable powders based on ZrO2

  • Parvati Ramaswamy
  • S. Seetharamu
  • K. B. R. Varma
  • K. J. Rao
Article

Abstract

Plasma-sprayable powders of calcia, magnesia and yttria-stabilized zirconia have been prepared by using polyvinyl alcohol binders. The powders have been characterized for sprayability by spray coating on steel plates previously coated with an NiAl bond coat. The suitability of these coatings for thermal barrier applications have been examined. Thermal barrier and related properties, along with phase stability and mechanical properties, have been found to be good. Failure of the thermal barrier coating has been observed to occur at the interface between the bond coat and the substrate, due to the formation of a pile-up layer consisting of Fe-Zr-Al-O compound.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    W. F. Calosso and A. R. Nicoll, 87-ICE-15, in “Energy-sources technology conference and exhibition”, Dallas, Texas, 15–20 February 1987 (ASME, New York, 1987) p. 1.Google Scholar
  2. 2.
    S. Rangaswamy, Sulzer Tech. Rev. 2 (1994) 6.Google Scholar
  3. 3.
    Fawzy G. Sherif and Lieh-Jiun Shyu, J. Amer. Ceram. Soc. 74 (1991) 375.Google Scholar
  4. 4.
    M. Chatterjee, J. Ray, A. Chatterjee, D. Ganguly, S. V. Joshi and M. P. Srivastava, J. Mater. Sci. 28 (1993) 2803.Google Scholar
  5. 5.
    A. R. Teter, Ceram. Age 82(8) (1996) 30.Google Scholar
  6. 6.
    P. Vincenzini, Ind. Ceram. 10 (3) (1990) 113.Google Scholar
  7. 7.
    N. Perrin, H. Burlet, M. Boussuge and G. Desplanches, Surf. Coat. Technol. 56 (1993) 151.Google Scholar
  8. 8.
    A. Bennett, Mater. Sci. Technol. 2(3) (1986) 257.Google Scholar
  9. 9.
    R. J. Bratton and S. K. Lau, in “Advances in Ceramics”. Vol. 3 “Science and technology of Zirconia”, edited by A. H. Heuer and L. W. Hobbs (American Ceramic Society, Columbus, OH, 1981) p. 226.Google Scholar
  10. 10.
    S. Alperine and L. Lelait, J. Eng. Gas Turbines Power Trans ASME 116(1) (1994) 258.Google Scholar
  11. 11.
    D. L. Porter and A. H. Heuer, J. Amer. Ceram. Soc. 62 (1979) 298.Google Scholar
  12. 12.
    R. Stevens, Trans. J. Bri. Ceram. Soc. 80 (1981) 81.Google Scholar
  13. 13.
    R. H. J. Hannink, J. Mater. Sci. 18 (1983) 457.Google Scholar
  14. 14.
    J. R. Vanvalzah and H. E. Eaton, Surf. Coat. Technol. 46 (1991) 289.Google Scholar
  15. 15.
    C. L. Curtis, D. T. Gawne and M. Priestnall, J. Mater. Sci. 29 (1994) 3102.Google Scholar
  16. 16.
    P. Scardi, L. Lutterotti and E. Galvanetto, Surf. Coat. Technol. 61 (1993) 52.Google Scholar
  17. 17.
    S. V. Joshi and M. P. Srivastava, ibid. 56 (1993) 215.Google Scholar
  18. 18.
    R. A. Miller, J. L. Smialek and R. G. Garlick, in “Advances in ceramics”, Vol. 3, “Science and technology of zirconia”, edited by A. H. Heuer and L. W. Hobbs (American Ceramic Society, Columbus, OH, 1981) p. 241.Google Scholar
  19. 19.
    B. -C. Wu, E. Chang, S. -F. Chang and D. Tu, J. Amer. Ceram. Soc. 72 (1989) 212.Google Scholar
  20. 20.
    R. C. Garvie and P. S. Nicholson, ibid. 55 (1972) 303.Google Scholar
  21. 21.
    J. R. Brandon and R. Taylor, Surf. Coat. Technol. 39/40 (1989) 143.Google Scholar
  22. 22.
    H. G. Scott, J. Mater. Sci. 10 (1975) 1527.Google Scholar
  23. 23.
    R. H. Unger, in “Thermal Spray: Advances in coatings technology”, Proceedings of the National thermal spray conference, edited by D. L. Houck, 14 September 1987, Orlando, Florida (ASM International, 1988) p. 365.Google Scholar

Copyright information

© Chapman & Hall 1996

Authors and Affiliations

  • Parvati Ramaswamy
    • 1
  • S. Seetharamu
    • 1
  • K. B. R. Varma
    • 2
  • K. J. Rao
    • 2
  1. 1.Materials Technology DivisionCentral Power Research InstituteBangaloreIndia
  2. 2.Materials Research CentreIndian Institute of ScienceBangaloreIndia

Personalised recommendations