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Application of Structure-Based Models of Mechanical and Thermal Properties on Plasma Sprayed Coatings

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Abstract

Mechanical and thermal properties of thermal sprayed coatings, especially ceramics, are strongly influenced by cracks and pores that are present in the coating microstructure. In the recent past, there have been efforts to find an analytical model describing the coating properties based on the microstructural characteristics. Various analytical models were developed and published in the literature. In this study, several major models were applied to ceramic and metal coatings to describe their elastic modulus and thermal conductivity. The sensitivity of the models to the variations in the microstructure and relevancy of their use in specific cases were examined. The results were compared with those obtained by FEM modeling and experimentally measured values.

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Acknowledgements

Financial support through grant no. ME901 (Czech Ministry of Education, Youth and Sports), as well as the help of Ing. Ondřej Kovářík, Ph.D. (Department of Materials at FNSPE, CTU in Prague) are gratefully acknowledged. Authors would like to thank to their colleagues from CTSR (Stony Brook University, USA) for their help and providing GSP samples.

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Authors and Affiliations

  1. Department of Materials Engineering, Institute of Plasma Physics AS CR, v. v. i, Za Slovankou 3, 182 00, Prague 8, Czech Republic

    Monika Vilémová, Jiří Matějíček & Radek Mušálek

  2. CSM Instruments SA, Rue de la Gare 4, 2034, Peseux, Switzerland

    Jiří Nohava

Authors
  1. Monika Vilémová
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  2. Jiří Matějíček
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  3. Radek Mušálek
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  4. Jiří Nohava
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Corresponding author

Correspondence to Monika Vilémová.

Additional information

This article is an invited paper selected from presentations at the 2011 International Thermal Spray Conference and has been expanded from the original presentation. It is simultaneously published in Thermal Spray 2011: Proceedings of the International Thermal Spray Conference, Hamburg, Germany, September 27-29, 2011, Basil R. Marple, Arvind Agarwal, Margaret M. Hyland, Yuk-Chiu Lau, Chang-Jiu Li, Rogerio S. Lima, and André McDonald, Ed., ASM International, Materials Park, OH, 2011.

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Vilémová, M., Matějíček, J., Mušálek, R. et al. Application of Structure-Based Models of Mechanical and Thermal Properties on Plasma Sprayed Coatings. J Therm Spray Tech 21, 372–382 (2012). https://doi.org/10.1007/s11666-012-9739-0

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  • DOI: https://doi.org/10.1007/s11666-012-9739-0

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