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Yttria-Stabilized Zirconia Thermal Barriers Sprayed Using N2-H2 and Ar-H2 Plasmas: Influence of Processing and Heat Treatment on Coating Properties

Journal of Thermal Spray Technology volume 16, pages 791–797 (2007)Cite this article

Abstract

Thermal barrier coatings were produced using both Ar and N2 as the primary plasma gas. Various aspects of the process and the coatings were investigated. It was found that higher in-flight particle temperatures could be produced using N2, but particle velocities were lower. Deposition efficiencies could be increased by a factor of two by using N2 as compared to Ar. Coatings having similar values of porosity, hardness, Young’s modulus, and thermal diffusivity could be produced using the two primary gases. The coatings exhibited similar changes (increased hardness, stiffness, and thermal diffusivity) when heat-treated at 1400 °C. However, the N2-processed coatings tended to have lower values of Young’s modulus and thermal diffusivity following such treatment. The results point to the potential advantage, in terms of reduced powder consumption and increased production rate, of using N2 as compared to Ar as the primary plasma gas for TBC deposition.

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Acknowledgments

The authors thank J. F. Alarie, S. Bélanger, F. Belval, B. Harvey, M. Lamontagne, M. Lord and M. Thibodeau for technical support in executing this research.

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Authors and Affiliations

  1. Industrial Materials Institute, National Research Council of Canada, Boucherville, QC, Canada

    B.R. Marple, R.S. Lima, C. Moreau & S.E. Kruger

  2. Sulzer Metco (US) Inc., Westbury, NY, USA

    L. Xie & M. R. Dorfman

Authors
  1. B.R. Marple
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  2. R.S. Lima
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  3. C. Moreau
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  4. S.E. Kruger
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  5. L. Xie
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  6. M. R. Dorfman
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Corresponding author

Correspondence to B.R. Marple.

Additional information

This article is an invited paper selected from presentations at the 2007 International Thermal Spray Conference and has been expanded from the original presentation. It is simultaneously published in Global Coating Solutions, Proceedings of the 2007 International Thermal Spray Conference, Beijing, China, May 14-16, 2007, Basil R. Marple, Margaret M. Hyland, Yuk-Chiu Lau, Chang-Jiu Li, Rogerio S. Lima, and Ghislain Montavon, Ed., ASM International, Materials Park, OH, 2007.

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Marple, B., Lima, R., Moreau, C. et al. Yttria-Stabilized Zirconia Thermal Barriers Sprayed Using N2-H2 and Ar-H2 Plasmas: Influence of Processing and Heat Treatment on Coating Properties. J Therm Spray Tech 16, 791–797 (2007). https://doi.org/10.1007/s11666-007-9093-9

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  • DOI: https://doi.org/10.1007/s11666-007-9093-9

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