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Suspension plasma spraying of zirconia coatings using different plasma torches
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SYSNO ASEP 0472968 Document Type C - Proceedings Paper (int. conf.) R&D Document Type O - Ostatní Title Suspension plasma spraying of zirconia coatings using different plasma torches Author(s) Sokolowski, S. (PL)
Latka, L. (PL)
Kozerski, S. (PL)
Dietrich, D. (DE)
Pala, Zdeněk (UFP-V) RID
Lampke, T. (DE)
Pawłowski, L. (FR)Article number 011002 Source Title 18th Chemnitz Seminar on Materials Engineering: 18. Werkstofftechnisches Kolloquium. - Bristol : IoP, Institute of Physics, 2016 - ISSN 1757-8981 - ISBN 978-1-5108-2233-7 Number of pages 2 s. Publication form Print - P Action Chemnitz Seminar on Materials Engineering/18./ Event date 10.03.2016 - 11.03.2016 VEvent location Chemnitz Country DE - Germany Event type EUR Language eng - English Country GB - United Kingdom Keywords plasma spraying ; zirconia coatings Subject RIV JK - Corrosion ; Surface Treatment of Materials OECD category Coating and films Institutional support UFP-V - RVO:61389021 UT WOS 000376260700015 DOI https://doi.org/10.1088/1757-899X/118/1/011002 Annotation The aim of the present work was to test the commercially available plasma torches for a Suspension Plasma Spraying in view of potential application of SPS technology to the industry i.e. for Thermal Barrier Coatings or Solid Oxide Fuel Cells production. Four different set-ups equipped with plasma torches namely: (i) SG-100, (ii) Triplex, (iii) Axial III and (iv) h-WSP were used. The spray process parameters were optimized for each torch separately. The zirconia coatings were produced using three different precursors based on: (i) YSZ – yttria partially-stabilized zirconia, (ii) Tosoh-YSZ – yttria fully-stabilized zirconia and (iii) YCeSZ – both yttria and ceria stabilized zirconia powders. Moreover three different concentrations of suspensions were tested for each plasma torch in order to observe their influence on the coating morphology and plasma spray process efficiency. The coatings’ microstructure was observed using light microscopy, scanning electron microscopy (SEM) as well as electron backscatter diffraction (EBSD). Afterwards the phase composition of coatings was analyzed using X-ray diffraction method. The studies showed that the spray process conditions highly influence coatings microstructure and coatings build-up mechanism. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2018
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