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  4. Suspension sprayed YSZ thermal barrier coatings: Road to industrial application
 
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2019
Conference Paper
Title

Suspension sprayed YSZ thermal barrier coatings: Road to industrial application

Abstract
Thermal barrier coatings (TBCs) are one of the most promising applications for suspension thermal spraying. By using a liquid feedstock, coating morphologies close to the columnar-like structure of electron-beam physical vapor deposition (EB-PVD) are possible. Additionally, vertically cracked TBC coatings (VC-TBC) have shown a great potential for industrial applications. In this work, we will analyze the process window for TBCs produced by using suspension spraying. Commercially available alcohol-and water-based YSZ suspensions have been processed using suspension atmospheric plasma spraying (S-APS) and suspension high-velocity oxy-fuel (S-HVOF) to achieve both columnar-like and VC morphologies. The coatings have been analyzed and compared in terms of microstructure, phase composition, bond strength and thermal cycling performance. Additionally, the suitability of S-APS and S-HVOF TBCs for industrial applications will be discussed, as well as which actions are needed to increase its competitiveness.
Author(s)
Barbosa, Maria Manuel
Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS  
Toma, Filofteia-Laura  orcid-logo
Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS  
Beitelschmidt, Denise
Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS  
Ligabue, Omar
Turbocoating S.p.A.
Bursich, Simone
Turbocoating S.p.A.
Tagliaferri, Luca
Turbocoating S.p.A.
Mainwork
International Thermal Spray Conference, ITSC 2018  
Conference
International Thermal Spray Conference (ITSC) 2018  
Language
English
Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS  
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