Heterogeneous Thermal Barrier Coatings with Engineered Gradient Interfaces
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F22%3A00566172" target="_blank" >RIV/61389021:_____/22:00566172 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.31399/asm.cp.itsc2022p0913" target="_blank" >http://dx.doi.org/10.31399/asm.cp.itsc2022p0913</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.31399/asm.cp.itsc2022p0913" target="_blank" >10.31399/asm.cp.itsc2022p0913</a>
Alternative languages
Result language
angličtina
Original language name
Heterogeneous Thermal Barrier Coatings with Engineered Gradient Interfaces
Original language description
Recent development of plasma spraying with liquid feedstocks enabled deposition of novel thermal barrier coatings (TBCs) with top-coats incorporating various desirable features, such as columnar microstructure or ultrafine porosi-ty. Moreover, different materials may be relatively easily combined, e.g., by alternating feedstocks in the feed line or using feedstock mixtures. Coatings with gradient change of chemistry/microstructure towards the free-surface can be also prepared by gradual change of the feedstock composition, which may be potentially beneficial for ex-ample to mitigate stresses at the macroscopic interfaces between TBC layers (typically bond-coat/top-coat or within layered top-coat). In this study, three experimental TBCs with gradient top-coats were successfully deposited by hybrid water/argon-stabilized WSP-H plasma torch, i.e., one version of coating with 8 wt.% yttria stabilized zirconia transitioning into gadolinium zirconate Gd2Zr2O7 (YSZ→GZO) and two versions of Al2O3 transitioning into YSZ (Al2O3→YSZ). Thermal cycling fatigue (TCF) test with peak temperature of 1100 °C showed outstanding thermal shock resistance of the YSZ→GZO coating and mediocre to poor resistance of both Al2O3→YSZ coatings.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20506 - Coating and films
Result continuities
Project
<a href="/en/project/GA22-21478S" target="_blank" >GA22-21478S: High-enthalpy deposition of hybrid plasma spray coatings</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Internation Thermal Spray Conference Proceedings
ISBN
978-3-96144-180-8
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
913-918
Publisher name
DVS Media GmbH
Place of publication
Düsseldorf
Event location
Vídeň
Event date
May 4, 2022
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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