Review of suspension and solution precursor plasma sprayed thermal barrier coatings |
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| Affiliation: | 1. SPCTS, UMR CNRS 7315, University of Limoges, 12, rue Atlantis, 87068 Limoges, France;2. Faculty of Mechanics, Wrocław University of Technology, ul. Łukasiewicza 5, 50-371 Wrocław, Poland;1. University West, 461 86 Trollhättan, Sweden;2. Siemens Industrial Turbomachinery AB, 612 83 Finspong, Sweden;3. Linköping University, 581 83 Linköping, Sweden;1. Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, ul. Łukasiewicza 5, 50-371 Wrocław, Poland;2. Laboratory of SPCTS, UMR CNRS 7315, University of Limoges, 12 rue Atlantis, 87068 Limoges, France;3. Department of Engineering Science, University West, Gustava Melins Gata 2, 461 86 Trollhättan, Sweden;4. Department of Materials Engineering, Institute of Plasma Physics CAS, v.v.i., Za Slovankou 3, 18200 Prague, Czech Republic;5. Institute of Materials Science and Engineering, Chemnitz University of Technology, D-09107 Chemnitz, Germany;1. Korea Institute of Ceramic Engineering and Technology, Icheon, Gyeonggi-do 467-843, Republic of Korea;2. School of Material Engineering, Inha University, Incheon 402-751, Republic of Korea;1. Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming, Shanghai Jiao Tong University, Shanghai 200240, China;2. School of Materials, University of Manchester, Grosvenor Street, Manchester M1 7HS, UK;3. Department of Engineering Science, University West, 461 86 Trollhättan, Sweden;1. Department of Engineering Science, University West, Sweden;2. Treibacher Industrie AG, Austria |
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| Abstract: | As one of the promising methods that can be employed to fabricate high-performance thermal barrier coatings (TBCs), suspension plasma spraying (SPS) or solution precursor plasma spraying (SPPS) has received significant attention in academic research. Enhanced performances have been shown in the SPS-/SPPS-coatings due to their special microstructures, such as uniformly distributed micro-pores, vertical cracks or columnar structures. Since there are more complexities than conventional plasma spraying methods, many works have been devoted to study the mechanism and properties of SPS-/SPPS-coatings during the past decades. In this work, the latest development of SPS or SPPS is reviewed in order to discuss some key issues in terms of preparation of suspension or solution precursor, injection mode of liquid phase, interaction between liquid and plasma jet, microstructure of as-sprayed coatings and corresponding deposition mechanism. Meanwhile, the potential application of SPS or SPPS in some new-type TBCs is introduced at the end of this paper. |
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| Keywords: | Suspension plasma spraying Solution precursor plasma spraying Thermal barrier coatings Microstructure Deposition mechanism |
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