Influence of Isothermal Exposure on Microstructural Changes Resulting in Delamination of Eutectic Al2O3+ZrO2+SiO2 Thermal Barrier Coating

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F14%3APU114980" target="_blank" >RIV/00216305:26620/14:PU114980 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Influence of Isothermal Exposure on Microstructural Changes Resulting in Delamination of Eutectic Al2O3+ZrO2+SiO2 Thermal Barrier Coating
Original language description
Eutectic ceramic Al2O3-ZrO2-SiO2 also termed Eucor (as a top coat) and CoNiCrAlY (as a bond coat) coatings were sprayed onto the surface of recently developed fine-grained cast polycrystalline nickel-based superalloy Inconel 713 LC by means of water stabilized plasma (WSP) and atmospheric plasma spraying (APS) techniques, respectively. Specimens were subjected to isothermal oxidation at 1050 °C for 10, 50, 100, 200 and 500 hours in ambient atmosphere, prior to which a half of the as-sprayed specimens was annealed at the temperature of 950 °C for 10 hours. Influence of short-time and long-time isothermal exposure on interactions at the bond-coat/top-coat interface was studied. The uniform and continuous oxide layer, also termed the thermally grown oxide(TGO), was formed and grew at the bond-coat/top-coat interface in all samples, both with and without the heat pre-treatment. Relationship between the dwell time, heat treatment and TGO growth kinetics was quantified. Microstructural chan
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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