High-temperature performance of self-healing SiC-YSZ thermal barrier coatings deposited by using various plasma spray concepts

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F21%3A00555663" target="_blank" >RIV/61389021:_____/21:00555663 - isvavai.cz</a>

Výsledek na webu

<a href="https://dl.asminternational.org/itsc/proceedings-abstract/ITSC%202021/83881/18/16768" target="_blank" >https://dl.asminternational.org/itsc/proceedings-abstract/ITSC%202021/83881/18/16768</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.31399/asm.cp.itsc2021p0018" target="_blank" >10.31399/asm.cp.itsc2021p0018</a>

Jazyk výsledku

angličtina

Název v původním jazyce

High-temperature performance of self-healing SiC-YSZ thermal barrier coatings deposited by using various plasma spray concepts

Popis výsledku v původním jazyce

In this study, a novel self-healing concept is considered in order to increase the lifetime of thermal barrier coatings (TBCs) in modern gas turbines. For that purpose, SiC healing particles were introduced to conventional 8YSZ topcoats by using various plasma spray concepts, i.e., composite or multilayered coatings. All topcoats were sprayed by SG-100 plasma torch on previously deposited NiCrAlY bondcoats produced by conventional atmospheric plasma spraying. Coatings were subjected to thermal conductivity measurements by laser flash method up to 1000°C, isothermal oxidation testing up to 200h at 1100°C and finally thermal cyclic fatigue (TCF) lifetime testing at 1100°C. Microstructural coating evaluation was performed by scanning electronic microscope (SEM), in the as-produced and post high-temperature tested states. This was done to analyze the self-healing phenomena and its influence on the high-temperature performance of the newly developed TBCs.

Název v anglickém jazyce

High-temperature performance of self-healing SiC-YSZ thermal barrier coatings deposited by using various plasma spray concepts

Popis výsledku anglicky

In this study, a novel self-healing concept is considered in order to increase the lifetime of thermal barrier coatings (TBCs) in modern gas turbines. For that purpose, SiC healing particles were introduced to conventional 8YSZ topcoats by using various plasma spray concepts, i.e., composite or multilayered coatings. All topcoats were sprayed by SG-100 plasma torch on previously deposited NiCrAlY bondcoats produced by conventional atmospheric plasma spraying. Coatings were subjected to thermal conductivity measurements by laser flash method up to 1000°C, isothermal oxidation testing up to 200h at 1100°C and finally thermal cyclic fatigue (TCF) lifetime testing at 1100°C. Microstructural coating evaluation was performed by scanning electronic microscope (SEM), in the as-produced and post high-temperature tested states. This was done to analyze the self-healing phenomena and its influence on the high-temperature performance of the newly developed TBCs.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20504 - Ceramics

Projekt

<a href="/cs/project/GA19-10246S" target="_blank" >GA19-10246S: Depoziční mechanismy a vlastnosti vícefázových plazmových nástřiků připravených s pomocí kapalné fáze</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Thermal Spray 2021: Proceedings from the International Thermal Spray Conference

ISBN

9781713831303

ISSN

—

e-ISSN

—

Počet stran výsledku

5

Strana od-do

18-22

Název nakladatele

ASM International

Místo vydání

Materials Park

Místo konání akce

online

Datum konání akce

24. 5. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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