Abstract
Technology of water-stabilized plasma torch was recently substantially updated through introduction of a so-called hybrid concept that combines benefits of water stabilization and gas stabilization principles. The high-enthalpy plasma provided by the WSP-H (“hybrid”) torch may be used for thermal spraying of powders as well as liquid feedstocks with high feed rates. In this study, results from three selected experiments with suspension plasma spraying with WSP-H technology are presented. Possibility of deposition of coatings with controlled microstructures was demonstrated for three different ceramics (YSZ—yttria-stabilized zirconia, YAG—yttrium aluminum garnet and Al2O3) introduced into ethanol-based suspensions. Shadowgraphy was used for optimization of suspension injection and visualization of the liquid fragmentation in the plasma jet. Coatings were deposited onto substrates attached to the rotating carousel with integrated temperature monitoring and air cooling, which provided an excellent reproducibility of the deposition process. Deposition of columnar-like YSZ and dense YAG and Al2O3 coatings was successfully achieved. Deposition efficiency reached more than 50%, as evaluated according to EN ISO 17 836 standard.
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A. Killinger, R. Gadow, G. Mauer, A. Guignard, R. Vassen, and D. Stover, Review of New Developments in Suspension and Solution Precursor Thermal Spray Processes, J. Therm. Spray Technol., 2011, 20(4), p 677-695
K. VanEvery, M.J.M. Krane, R.W. Trice, H. Wang, W. Porter, M. Besser, D. Sordelet, J. Ilavsky, and J. Almer, Column Formation in Suspension Plasma-Sprayed Coatings and Resultant Thermal Properties, J. Therm. Spray Technol., 2011, 20(4), p 817-828
L. Pawlowski, Suspension and Solution Thermal Spray Coatings, Surf. Coat. Technol., 2009, 203(19), p 2807-2829
R. Vassen, H. Kaner, G. Mauer, and D. Stover, Suspension Plasma Spraying: Process Characteristics and Applications, J. Therm. Spray Technol., 2010, 19(1-2), p 219-225
P. Fauchais and G. Montavon, Latest Developments in Suspension and Liquid Precursor Thermal Spraying, J. Therm. Spray Technol., 2010, 19(1-2), p 226-239
P. Fauchais, M. Vardelle, S. Goutier, and A. Vardelle, Key Challenges and Opportunities in Suspension and Solution Plasma Spraying, Plasma Chem. Plasma Process., 2014, 35(3), p 511-525
P. Fauchais, M. Vardelle, A. Vardelle, and S. Goutier, What Do We Know, What Are the Current Limitations of Suspension Plasma Spraying? J. Therm. Spray Technol., 2015, 24(7), p 1120-1129
F.-L. Toma, A. Potthoff, L.-M. Berger, and C. Leyens, Demands, Potentials, and Economic Aspects of Thermal Spraying with Suspensions: A Critical Review, J. Therm. Spray Technol., 2015, 24(7), p 1143-1152
N. Curry, K. VanEvery, T. Snyder, J. Susnjar, and S. Bjorklund, Performance Testing of Suspension Plasma Sprayed Thermal Barrier Coatings Produced with Varied Suspension Parameters, Coatings, 2015, 5(3), p 338-356
A. Ganvir, N. Curry, S. Bjorklund, N. Markocsan, and P. Nylen, Characterization of Microstructure and Thermal Properties of YSZ Coatings Obtained by Axial Suspension Plasma Spraying (ASPS), J. Therm. Spray Technol., 2015, 24(7), p 1195-1204
R. Musalek, G. Bertolissi, J. Medricky, J. Kotlan, Z. Pala, and N. Curry, Feasibility of Suspension Spraying of Yttria-Stabilized Zirconia with Water-Stabilized Plasma Torch, Surf. Coat. Technol., 2015, 268, p 58-62
J. Matejicek, T. Kavka, G. Bertolissi, P. Ctibor, M. Vilemová, R. Musalek, and B. Nevrla, The Role of Spraying Parameters and Inert Gas Shrouding in Hybrid Water-Argon Plasma Spraying of Tungsten and Copper for Nuclear Fusion Applications, J. Therm. Spray Technol., 2013, 22(5), p 744-755
M. Hrabovsky, Thermal Plasma Generators with Water Stabilized Arc, Open Plasma Phys. J., 2009, 2(1), p 99-104
M. Hlina and M. Hrabovsky, Enthalpy Probe Diagnostics of Steam/Argon Plasma Jet, Plasma Phys. Technol., 2015, 2(2), p 142-145
M. Hrabovsky, Generation of Thermal Plasmas in Liquid-Stabilized and Hybrid Dc-Arc Torches, Pure Appl. Chem., 2002, 74(3), p 429-433
T. Kavka, J. Matejicek, P. Ctibor, A. Maslani, and M. Hrabovsky, Plasma Spraying of Copper by Hybrid Water-Gas DC Arc Plasma Torch, J. Therm. Spray Technol., 2011, 20(4), p 760-774
T. Kavka, J. Matejicek, P. Ctibor, and M. Hrabovsky, Spraying of Metallic Powders by Hybrid Gas/Water Torch and the Effects of Inert Gas Shrouding, J. Therm. Spray Technol., 2011, 21(3-4), p 695-705
T. Kavka, V. Kopecky, V. Sember, A. Maslani, and O. Chumak, Analysis of Plasma Jets Generated in Gas and Gas-Water Torches, High Temp. Mater. Process., 2007, 11(1), p 59-70
J. Jenista, H. Takana, H. Nishiyama, M. Bartlova, V. Aubrecht, P. Krenek, M. Hrabovsky, T. Kavka, V. Sember, and A. Maslani, Integrated Parametric Study of a Hybrid-Stabilized Argon-water Arc under Subsonic, Transonic and Supersonic Plasma Flow Regimes, J. Phys. D Appl. Phys., 2011, 44(43), p 435204
J. Kotlan, Z. Pala, R. Musalek, and P. Ctibor, On Reactive Suspension Plasma Spraying of Calcium Titanate, Ceram. Int., 2016, 42(3), p 4607-4615
L. Latka, S.B. Goryachev, S. Kozerski, and L. Pawlowski, Sintering of Fine Particles in Suspension Plasma Sprayed Coatings, Materials (Basel), 2010, 3(7), p 3845-3866
C.M. Weyant and K.T. Faber, Processing-Microstructure Relationships for Plasma-Sprayed Yttrium Aluminum Garnet, Surf. Coat. Technol., 2008, 202(24), p 6081-6089
S. Kuroda and T.W. Clyne, The Quenching Stress in Thermally Sprayed Coatings, Thin Solid Films, 1991, 200(1), p 49-66
R. Musalek, J. Matejicek, M. Vilemova, and O. Kovarik, Non-Linear Mechanical Behavior of Plasma Sprayed Alumina under Mechanical and Thermal Loading, J. Therm. Spray Technol., 2010, 19(1-2), p 422-428
P. Ctibor, J. Kubat, Z. Pala, and B. Nevrla, Plasma Spraying of Cerium-Doped YAG, J. Mater. Res., 2014, 29(19), p 2344-2351
B.G. Ravi, A.S. Gandhi, X.Z. Guo, J. Margolies, and S. Sampath, Liquid Precursor Plasma Spraying of Functional Materials: A Case Study for Yttrium Aluminum Garnet (YAG), J. Therm. Spray Technol., 2008, 17(1), p 82-90
P. Chraska, J. Dubsky, K. Neufuss, and J. Pisacka, Alumina-Base Plasma-Sprayed Materials Part I: Phase Stability of Alumina and Alumina-Chromia, J. Therm. Spray Technol., 1997, 6(3), p 320-326
Acknowledgment
Financial support provided by Czech Science Foundation through Grant No. GA15-12145S (Physical aspects of plasma spray deposition from liquid feedstock) is gratefully acknowledged.
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This article is an invited paper selected from presentations at the 2016 International Thermal Spray Conference, held May 10-12, 2016, in Shanghai, P. R. China, and has been expanded from the original presentation.
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Musalek, R., Medricky, J., Tesar, T. et al. Suspensions Plasma Spraying of Ceramics with Hybrid Water-Stabilized Plasma Technology. J Therm Spray Tech 26, 37–46 (2017). https://doi.org/10.1007/s11666-016-0493-6
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DOI: https://doi.org/10.1007/s11666-016-0493-6