Influence of Air Plasma Spraying Process Parameters on Ceramic Layer in Thermal Barrier Coatings

Tadeusz Kubaszek; Marek Goral

doi:10.4028/www.scientific.net/SSP.267.207

Paper Titles

Evaluation of Wear Rate of Nanocrystalline Diamond Films Using Abbott Curve
p.185

Morphology and Tribological Behaviour of Amorphous and Crystalline Aluminum Oxide Layers
p.190

Sliding Wear of Composite Stainless Steel Hardfacing under Room and Elevated Temperature
p.195

Prediction of Abrasive Erosion Impact Wear of Composite Hardfacings
p.201

Influence of Air Plasma Spraying Process Parameters on Ceramic Layer in Thermal Barrier Coatings
p.207

Evaluation of Residual Stresses in PVD Coatings by Means of Strip Substrate Length Variation and Curvature Method of Plate Substrate
p.212

Wear Rate of Nanocrystalline Diamond Coating under High Temperature Sliding Conditions
p.219

Comparative Study of Adhesive Wear for CoCr, TiC-NiMo, WC-Co as Potential FSW Tool Materials
p.224

Dependance of Wear of Cu-Cr-S Alloy on Hardness and Electrical Conductivity in Sliding Electrical Contact
p.229

HomeSolid State PhenomenaSolid State Phenomena Vol. 267Influence of Air Plasma Spraying Process...

Influence of Air Plasma Spraying Process Parameters on Ceramic Layer in Thermal Barrier Coatings

Abstract:

The aim of this study was to examine the possibility of application in APS process Yttria Stabilized Zirconia (YSZ) – Metco 6700 ceramic powder normally used in Low Pressure Plasma Spraying (LPPS) method. Powder grain size is around 10 µm. Parameters such as chemical composition of plasma gases and current were changed to obtain the best result. The experiment was divided into two stages. Firstly, temperature, velocity and size of a molten particle of ceramic powder inside plasma plume were measured via DPV eVolution equipment (TECNAR company) during a different set of process parameters. Plasma plume was also scanned to obtain cross-section contour plots of mentioned properties of the molten particle. Secondly, the same processes were repeated to deposit TBC coatings onto sheet metal to examine the structure.The obtained results showed that it is possible to use fine-grain YSZ powder Metco 6700 for APS process. Obtained ceramic coatings had a thickness from 100 to 240 µm. The plasma sprayed coating was characterised by a smooth surface. The measurement of spraying parameters showed the uniform temperature, velocity and particle size of the powder inside plasma plume.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Solid State Phenomena (Volume 267)

Pages:

207-211

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.267.207

Citation:

Cite this paper

Online since:

October 2017

Authors:

Tadeusz Kubaszek*, Marek Goral

Keywords:

Air Plasma Spraying (APS), DPV Evolution Measurements, Thermal Barrier Coatings (TBC)

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] D.G. Backman, J.C. Williams, Advanced materials for aircraft engine applications, Science 255 (1992) 1082-1087.

DOI: 10.1126/science.255.5048.1082

Google Scholar

[2] A. Scrivani, U. Bardi, L. Carrafiello, A. Lavacchi, F. Niccolai, G. Rizzi, A comparative study of high velocity oxygen fuel, vacuum plasma spray, and axial plasma spray for the deposition of CoNiCrAlY bond coat alloy, J. Therm. Spray Techn. 12 (2003).

DOI: 10.1361/105996303772082242

Google Scholar

[3] B.M. Warnes, D.C. Punola, Clean diffusion coatings by chemical vapor deposition, Surf. Coat. Techn. 94-95 (1997) 1-6.

DOI: 10.1016/s0257-8972(97)00467-2

Google Scholar

[4] G. Moskal, L. Swadźba, B. Mendala, M. Góral, M. Hetmańczyk, Degradation of the TBC system during the static oxidation test, J. Microsc. 237 (2010) 450-455.

DOI: 10.1111/j.1365-2818.2009.03290.x

Google Scholar

[5] A. Feuerstein, J. Knap, T. Taylor, A. Ashary, A. Bolcavage, N. Hitchman, Technical and economical aspects of current thermal barrier coating systems for gas turbine engines by thermal spray and EBPVD: A review, J. Therm. Spray. Techn. 17 (2008).

DOI: 10.1007/s11666-007-9148-y

Google Scholar

[6] M. Goral, S. Kotowski, J. Sieniawski, The technology of plasma spray physical vapour deposition, High Temp. Mater. Processes 32 (2013) 33-39.

DOI: 10.1515/htmp-2012-0051

Google Scholar

[7] M. Goral, S. Kotowski, A. Nowotnik, M. Pytel, M. Drajewicz, J. Sieniawski, PS-PVD deposition of thermal barrier coatings, Surf. Coat. Technol. 237 (2013) 51-55.

DOI: 10.1016/j.surfcoat.2013.09.028

Google Scholar

[8] A. Ganvir, N. Curry, N.S. Govindarajan, N. Markocsan, Characterization of thermal barrier coatings produced by various thermal spray techniques using solid powder, suspension, and solution precursor feedstock material, Int. J. Applied Ceramic Techn. 13 (2016).

DOI: 10.1111/ijac.12472

Google Scholar