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3D Modeling of Transport Phenomena and the Injection of the Solution Droplets in the Solution Precursor Plasma Spraying

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Abstract

Solution precursor plasma spraying has been used to produce finely structured ceramic coatings with nano- and sub-micrometric features. This process involves the injection of a solution spray of ceramic salts into a DC plasma jet under atmospheric condition. During the process, the solvent vaporizes as the droplet travel downstream. Solid particles are finally formed due to the precipitation of the solute, and the particle are heated up and accelerated to the substrate to generate the coating. This article describes a 3D model to simulate the transport phenomena and the trajectory and heating of the solution spray in the process. The jet-spray two-way interactions are considered. A simplified model is employed to simulate the evolution process and the formation of the solid particle from the solution droplet in the plasma jet. The temperature and velocity fields of the jet are obtained and validated. The particle size, velocity, temperature, and position distribution on the substrate are predicted.

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Acknowledgments

The financial support of the NSERC of Canada, the National Natural Science Foundation of China (Project 50706027), and the Shanghai Municipal Education Commission (Project 05EZ16) is gratefully acknowledged.

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Authors and Affiliations

  1. School of Power Engineering, University of Shanghai for Science and Technology, Shanghai, China

    Yanguang Shan

  2. Centre for Advanced Coating Technologies, University of Toronto, Toronto, ON, Canada

    Thomas W. Coyle & Javad Mostaghimi

Authors
  1. Yanguang Shan
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  2. Thomas W. Coyle
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  3. Javad Mostaghimi
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Corresponding author

Correspondence to Yanguang Shan.

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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Shan, Y., Coyle, T. & Mostaghimi, J. 3D Modeling of Transport Phenomena and the Injection of the Solution Droplets in the Solution Precursor Plasma Spraying. J Therm Spray Tech 16, 736–743 (2007). https://doi.org/10.1007/s11666-007-9101-0

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  • DOI: https://doi.org/10.1007/s11666-007-9101-0

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