Počet záznamů: 1
Microstructures and properties of thermal barrier coatings deposited by hybrid water-stabilized plasma torch
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SYSNO ASEP 0555655 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Microstructures and properties of thermal barrier coatings deposited by hybrid water-stabilized plasma torch Tvůrce(i) Mušálek, Radek (UFP-V) RID, ORCID
Tesař, Tomáš (UFP-V) ORCID
Medřický, Jan (UFP-V) RID
Lukáč, František (UFP-V) ORCID
Chráska, Tomáš (UFP-V) RID, ORCID
Gupta, M. (SE)Celkový počet autorů 6 Zdroj.dok. Proceedings of the International Thermal Spray Conference. - Materials Park : ASM International, 2019 - ISBN 978-1-62708-242-6 Rozsah stran s. 738-745 Poč.str. 8 s. Forma vydání Online - E Akce International Thermal Spray Conference and Exposition: New Waves of Thermal Spray Technology for Sustainable Growt Datum konání 26.05.2019 - 29.05.2019 Místo konání Yokohama Země JP - Japonsko Typ akce WRD Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova coatings ; hybrid water-stabilized plasma torch ; microstructures Vědní obor RIV JK - Koroze a povrchové úpravy materiálů Obor OECD Coating and films CEP GA19-10246S GA ČR - Grantová agentura ČR Institucionální podpora UFP-V - RVO:61389021 EID SCOPUS 85073876666 Anotace Hybrid Water-Stabilized Plasma (WSP-H) torch provides high-enthalpy plasma which may be utilized for high-throughput and yet economical spraying of coatings from powders, suspensions, and solutions. It was previously demonstrated that microstructures and functional properties of the WSP-H coatings may be tailored to a wide extent for various new applications, namely those requiring high coating thickness and/or coating of large components. In this study, applicability of WSP-H technology for spraying of novel thermal barrier coatings (TBCs) is demonstrated. WSP-H technology was used for spraying of yttria-stabilized zirconia (YSZ) top-coats from powder, suspension and solution. Yttria content in the top-coat feedstock was 7-8 wt.%. NiCrAlY bond-coat was also sprayed by WSP-H and Hastelloy-X alloy was used as substrate material. Microstructure, phase composition, and endurance of the deposited coatings in thermal cycling fatigue (TCF) test were evaluated. Each thermal cycle consisted of rapid heating to 1100 °C, followed by one hour dwell and rapid cooling. All coatings showed excellent stability and TCF resistance withstanding more than 700 cycles surpassing in TCF test some of the currently commercially used TBCs. Lifetime of TBC with columnar top-coat deposited from suspension exceeded even more than 900 cycles. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2022
Počet záznamů: 1