The Influence of Ar/N₂ Plasma Gases on Microstructure of Ceramic Coatings Produced by PS-PVD Method

Abstract:

The PS-PVD method is a promising technique for production of ceramic coatings from the vapor phase on gas turbine components. The resulting layers combine benefits of coatings made by the plasma spray method and other methods of Physical Vapor Deposition. The plasma spray process is carried out under reduced pressure (~ 200 Pa) and with the use of a gun applied in the method (the LPPS torch 0C3P). The PS-PVD enjoys many of the benefits of plasma spray methods combined with relatively low production costs and overall better properties. One of the significant costs of coating manufacturing by this method is the use of helium as process gas to generate plasma. The authors attempted to form a ceramic coating from ZrO₂, where a mixture of argon and nitrogen in various proportions was used. The resulting layers were analyzed by XRD, LFA, SEM-EDS.

• Periodical: Materials Science Forum (Volume 844)
• Pages: 187-192
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.844.187
• Online since: March 2016
• Authors: Paweł Pędrak*, Marek Goral, Kamil Dychtoń, Tadeusz Kubaszek, Andrzej Nowotnik, Krzysztof Kubiak
• Keywords: Ceramic Coatings, Microstructure, PS-PVD

References

[1] Harder, B. J., and Zhu, D. (2011).

[2] Von Niessen, K., and Gindrat, M. (2011). Plasma spray-PVD: a new thermal spray process to deposit out of the vapor phase. Journal of thermal spray technology, 20(4), 736-743.

DOI: 10.1007/s11666-011-9654-9

[3] Hospach, A., Mauer, G., Vaßen, R., and Stöver, D. (2012). Characteristics of ceramic coatings made by thin film low pressure plasma spraying (LPPS-TF). Journal of thermal spray technology, 21(3-4), 435-440.

DOI: 10.1007/s11666-012-9748-z

[4] Gao, Y., Yang, D. M., and Gao, J. (2012). Characteristics of a Plasma Torch Designed for Very Low Pressure Plasma Spraying. Journal of thermal spray technology, 21(3-4), 740-744.

DOI: 10.1007/s11666-011-9730-1

[5] Goral, M., Kotowski, S., Nowotnik, A., Pytel, M., Drajewicz, M., and Sieniawski, J. (2013). PS-PVD deposition of thermal barrier coatings. Surface and Coatings Technology, 237, 51-55.

DOI: 10.1016/j.surfcoat.2013.09.028

[6] Mauer, G., Hospach, A., and Vaßen, R. (2013). Process development and coating characteristics of plasma spray-PVD. Surface and Coatings Technology, 220, 219-224.

DOI: 10.1016/j.surfcoat.2012.08.067

[7] Zhu, L., Zhang, N., Sun, F., Bolot, R., Planche, M. P., Liao, H., and Coddet, C. (2011).

[8] Mauer, G., Hospach, A., Zotov, N., and Vaßen, R. (2013). Process conditions and microstructures of ceramic coatings by gas phase deposition based on plasma spraying. Journal of thermal spray technology, 22(2-3), 83-89.

DOI: 10.1007/s11666-012-9838-y

[9] Góral, M., Pytel, M., Sosnowy, P., Kotowski, S., and Drajewicz, M. (2013, April). Microstructural Characterization of Thermal Barrier Coatings Deposited by APS and LPPS Thin Film Methods. Solid State Phenomena (Vol. 197, pp.1-5).

DOI: 10.4028/www.scientific.net/ssp.197.1

[10] Mauer, G., Jarligo, M. O., Rezanka, S., Hospach, A., and Vaßen, R. (2015). Novel opportunities for thermal spray by PS-PVD. Surface and coatings technology, 268, 52-57.

DOI: 10.1016/j.surfcoat.2014.06.002