Skip to main content
Log in

In Situ Visualization of Impacting Phenomena of Plasma-Sprayed Zirconia: From Single Splat to Coating Formation

  • Peer Reviewed
  • Published:
Journal of Thermal Spray Technology Aims and scope Submit manuscript

Abstract

The authors have developed an in situ monitoring system for particle impacts under atmospheric dc plasma spraying conditions. This system utilized a high-speed video camera coupled with a long-distance microscope, and was capable of capturing the particle-impinging phenomena at one million frames per second. To understand the coating formation mechanism, two approaches were attempted, i.e., observation of the single splat formation and the subsequent coating formation. In the former case, the deformation and cooling processes of yttria-stabilized zirconia (YSZ) droplets impinging on substrates were successfully captured. In the latter case, multiple-droplet-impacting phenomena were observed as an ensemble treatment. Representing the coating process, the tower formation (0-dimensional) and bead formation (1-dimensional) were observed under typical plasma spray conditions for thermal barrier coatings using a triggering system coupled with the motion of a robot. The obtained images clearly showed the coating formation resulting from the integration of single splats.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8

Similar content being viewed by others

References

  1. T. Yoshida, Toward a New Era of Plasma Spray Processing, Pure Appl. Chem., 2006, 78 (6), p 1093-1107

    Article  CAS  Google Scholar 

  2. F. Gitzhofer, M. Boulos, J. Heberlein, R. Henne, T. Ishigaki, T. Yoshida, Integrated Fabrication Processes for Solid-Oxide Fuel Cells Using Thermal Plasma Spray Technology, MRS Bull., 2000, 25 (7), p 38-42

    CAS  Google Scholar 

  3. E. Moreau, C. Chazelas, G. Mariaux, A. Vardelle, Modeling the Restrike Mode Operation of a DC Plasma Spray Torch, J. Therm. Spray Technol. 2006, 15 (4), p 524-530

    Article  ADS  Google Scholar 

  4. J.F. Bisson, B. Gauthier, C. Moreau, Effect of Plasma Fluctuations on In-Flight Particle Parameters, J. Therm. Spray Technol. 2003, 12 (1), p 38-43

    Article  ADS  CAS  Google Scholar 

  5. J.F. Bisson, C. Moreau, Effect of Direct-Current Plasma Fluctuations on In-Flight Particle Parameters: Part II, J. Therm. Spray Technol., 2003, 12 (2), p 258-264

    Article  ADS  CAS  Google Scholar 

  6. P. Saravanan, V. Selvarajan, M.P. Srivastava, D.S. Rao, S.V. Joshi, G. Sundararajan, Study of Plasma- and Detonation Gun-Sprayed Alumina Coatings Using Taguchi Experimental Design, J. Therm. Spray Technol. 2000, 9 (4), p 505-512

    ADS  CAS  Google Scholar 

  7. P. Fauchais, Understanding Plasma Spraying, J. Phys. D: Appl. Phys. 2004, 37, p R86-R108

    Article  ADS  CAS  Google Scholar 

  8. A. Vardelle, C. Moreau, P. Fauchais, The Dynamics of Deposit Formation in Thermal-Spray Processes, MRS Bull. 2000, 25 (7), p 32-37

    CAS  Google Scholar 

  9. T.G. Etoh, D. Poggemann, G. Kreider, H. Mutoh, A.J.P. Theuwissen, A. Ruckelshausen, Y. Kondo, H. Maruno, K. Takubo, H. Soya, K. Takehara, T. Okinaka, Y. Takano, An Image Sensor which Captures 100 Consecutive Frames at 1 000 000 Frames/s, IEEE Trans. Electron Dev., 2003, 50 (1), p 144-151

    Article  ADS  Google Scholar 

  10. S.T. Thoroddsen, T.G. Etoh, K. Takehara, High-Speed Imaging of Drops and Bubbles, Annu. Rev. Fluid Mech. 2008, 40, p 257-285

    Article  ADS  MathSciNet  Google Scholar 

  11. K. Shinoda, H. Murakami, S. Kuroda, S. Oki, K. Takehara, and T.G. Etoh, High-Speed Thermal Imaging of Yttria-Stabilized Zirconia Droplet Impinging on Substrate in Plasma Spraying, Appl. Phys. Lett., 2007, 90(19), Art. No. 194103 (3 pp)

  12. K. Shinoda, H. Murakami, S. Kuroda, S. Oki, K. Takehara, and T.G. Etoh, High-Speed Thermal Imaging of Yttria-Stabilized Zirconia Droplets Impinging on a Substrate in Plasma Spraying, Proceedings of the 18th International Symposium on Plasma Chemistry, K. Tachibana, Ed., August 26-31 2007 (Kyoto), International Plasma Chemistry Society, 2007, Art. No. 28C-a3 (4 pp)

  13. K. Shinoda, Y. Kojima, T. Yoshida, In Situ Measurement System for Deformation and Solidification Phenomena of Yttria-Stabilized Zirconia Droplets Impinging on Quartz Glass Substrate under Plasma Spraying Conditions, J. Therm. Spray Technol. 2005, 14 (4), p 511-517

    Article  ADS  CAS  Google Scholar 

  14. K. Shinoda, T. Koseki, and T. Yoshida, Influence of Impact Parameters of Zirconia Droplets on Splat Formation and Morphology in Plasma Spraying, J. Appl. Phys., 2006, 100(7), Art. No. 074903 (6 pp)

    Google Scholar 

  15. H.B. Guo, H. Murakami, S. Kuroda, Effect of Hollow Spherical Powder Size Distribution on Porosity and Segmentation Cracks in Thermal Barrier Coatings, J. Am. Ceram. Soc., 2006, 89 (12), p 3797-3804

    Article  CAS  Google Scholar 

  16. H.B. Guo, S. Kuroda, H. Murakami, Microstructures and Properties of Plasma-Sprayed Segmented Thermal Barrier Coatings, J. Am. Ceram. Soc., 2006, 89 (4), p 1432-1439

    Article  CAS  Google Scholar 

  17. A. McDonald, C. Moreau, S. Chandra, Thermal Contact Resistance Between Plasma-Sprayed Particles and Flat Surfaces, Int. J. Heat Mass Transfer, 2007, 50 (9-10), p 1737-1749

    Article  MATH  CAS  Google Scholar 

  18. R. Rioboo, C. Tropea, M. Marengo, Outcomes from a Drop Impact on Solid Surfaces, At. Sprays, 2001, 11, p 155-165

    CAS  Google Scholar 

  19. A.L. Yarin, Drop Impact Dynamics: Splashing, Spreading, Receding, Bouncing, Annu. Rev. Fluid Mech. 2006, 38, p 159-192

    Article  ADS  MathSciNet  Google Scholar 

  20. L. Xu, L. Barcos, and S.R. Nagel, Splashing of Liquids: Interplay of Surface Roughness with Surrounding Gas, Phys. Rev. E, 2007, 76(6), Art. No. 066311 (5 pp)

    Google Scholar 

  21. L. Xu, Liquid Drop Splashing on Smooth, Rough, and Textured Surfaces, Phys. Rev. E, 2007, 75, Art. No. 056316 (8 pp)

  22. B.M. Cetegen, W. Yu, In-Situ Particle Temperature, Velocity, and Size Measurements in DC Arc Plasma Thermal Sprays, J. Therm. Spray Technol. 1999, 8(1), p 57-67

    Article  ADS  CAS  Google Scholar 

  23. C. Moreau, M. Lamontagne, P. Cielo, Influence of the Coating Thickness on the Cooling Rates of Plasma-Sprayed Particles on a Substrate, Surf. Coat. Technol., 1992, 53, p 107-114

    Article  CAS  Google Scholar 

  24. M. Vardelle, A. Vardelle, A.C. Leger, P. Fauchais, D. Gobin, Influence of Particle Parameters at Impact on Splat Formation and Solidification in Plasma Spraying Processes, J. Therm. Spray Technol., 1995, 4 (1), p 50-58

    Article  ADS  CAS  Google Scholar 

  25. L. Li, A. Vaidya, S. Sampath, H.B. Xiong, L.L. Zheng, Particle Characterization and Splat Formation of Plasma Sprayed Zirconia, J. Therm. Spray Technol. 2006, 15 (1), p 97-105

    Article  ADS  Google Scholar 

  26. G. Mauer, R. Vassen, D. Stover, Detection of Melting Temperatures and Sources of Errors Using Two-Color Pyrometry During In-Flight Measurements of Atmospheric Plasma-Sprayed Particles, Int. J. Thermophys. 2008, 29 (2), p 764-786

    Article  CAS  Google Scholar 

  27. R. Ghafouri-Azar, J. Mostaghimi, S. Chandra, M. Charmchi, A Stochastic Model to Simulate the Formation of a Thermal Spray Coating, J. Therm. Spray Technol. 2003, 12 (1), p 53-69

    Article  ADS  Google Scholar 

Download references

Acknowledgments

We thank Prof. Takehar-Goji Etoh (Kinki University) for his useful discussions. We also thank Mr. Masayuki Komatsu and Mr. Nobukazu Kakeya (NIMS) for help with the experiments.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Kentaro Shinoda.

Additional information

This article is an invited paper selected from presentations at the 2008 International Thermal Spray Conference and has been expanded from the original presentation. It is simultaneously published in Thermal Spray Crossing Borders, Proceedings of the 2008 International Thermal Spray Conference, Maastricht, The Netherlands, June 2-4, 2008, Basil R. Marple, Margaret M. Hyland, Yuk-Chiu Lau, Chang-Jiu Li, Rogerio S. Lima, and Ghislain Montavon, Ed., ASM International, Materials Park, OH, 2008.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Shinoda, K., Murakami, H., Kuroda, S. et al. In Situ Visualization of Impacting Phenomena of Plasma-Sprayed Zirconia: From Single Splat to Coating Formation. J Therm Spray Tech 17, 623–630 (2008). https://doi.org/10.1007/s11666-008-9221-1

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11666-008-9221-1

Keywords

Navigation