Počet záznamů: 1
Axial plasma spraying of aqueous solution precursors: A facile approach for columnar thermal barrier coatings
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SYSNO ASEP 0645985 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Axial plasma spraying of aqueous solution precursors: A facile approach for columnar thermal barrier coatings Tvůrce(i) Hervy, T. (FR)
Curry, N. (AT)
Björklund, S. (SE)
Lukáč, František (UFP-V) ORCID
Joshi, S. (SE)Celkový počet autorů 7 Číslo článku 117189 Zdroj.dok. Journal of the European Ceramic Society. - : Elsevier - ISSN 0955-2219
Roč. 45, č. 6 (2025)Poč.str. 6 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Axial injection ; Columnar microstructure ; Deposition rate ; Solution precursor plasma spraying ; Thermal barrier coating ; Thermal cycling ; xrd ; ysz Vědní obor RIV JH - Keramika, žáruvzdorné materiály a skla Obor OECD Ceramics Způsob publikování Open access Institucionální podpora UFP-V - RVO:61389021 UT WOS 001398004500001 EID SCOPUS 85214530945 DOI https://doi.org/10.1016/j.jeurceramsoc.2025.117189 Anotace Thermal barrier coatings (TBC) are an essential part of modern gas turbines for aviation and power generation. As such, there is an incessant demand for improved TBC performance and longevity. Of the possible coating microstructures, the columnar structure first produced by electron beam physical vapour deposition was found to be most durable. The subsequently developed suspension plasma spray coatings are seen as an alternative method for producing columnar TBCs but typically utilise flammable solvents to achieve such structures. Aqueous solution precursors have also been used as a feedstock to deposit yttria stabilised zirconia (YSZ) TBCs - however, columnar structures have proven elusive, with solution precursor plasma spray (SPPS) deposition conditions and throughputs involving radial feed spray torches also being industrially unattractive. This study illustrates the first columnar coatings of single-layer yttria stabilised zirconia from an aqueous solution precursor using an axial feed capable plasma torch. Coatings have been shown to be columnar structured over a robust operating window, fully tetragonal in phase constitution and capable of being deposited at rates that can be commercially interesting. These initial results lay a great foundation for further TBC development utilizing an aqueous, powder-free, feedstock. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2026 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S0955221925000093
Počet záznamů: 1