Influence of spray angle on microstructure and lifetime of suspension plasma-sprayed thermal barrier coatings
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F22%3A43965975" target="_blank" >RIV/49777513:23640/22:43965975 - isvavai.cz</a>
Result on the web
<a href="http://doi.org/10.1007/s11666-022-01436-7" target="_blank" >http://doi.org/10.1007/s11666-022-01436-7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11666-022-01436-7" target="_blank" >10.1007/s11666-022-01436-7</a>
Alternative languages
Result language
angličtina
Original language name
Influence of spray angle on microstructure and lifetime of suspension plasma-sprayed thermal barrier coatings
Original language description
Thermal barrier coatings (TBCs) are widely utilized in gas turbine engines for power generation. In recent years, the application of TBCs in automotive has been introduced to improve engine efficiency. Low thermal conductivity and high durability are desired coating properties for both gas turbine engines and automotive. Also, suspension plasma spraying (SPS) permits a columnar microstructure that combines both properties. However, it can be challenging to deposit a uniform columnar microstructure on a complex geometry, such as a gas turbine component or piston head, and achieve similar coating characteristics on all surfaces. This work’s objective was to investigate the influence of spray angle on the microstructure and lifetime of TBCs produced by SPS. For this purpose, SPS TBCs were deposited on specimens using different spray angles. The microstructures of the coatings were analyzed by image analysis for thickness, porosity, and column density. Thermal and optical properties were evaluated on each TBC. Lifetime tests, specifically designed for the two applications, were performed on all investigated TBCs. The lifetime results were analyzed with respect to the TBC microstructure and thermal and optical properties. This investigation showed that there is a limit to the spray angle that achieves the best compromise between TBC microstructure, thermal properties, optical properties, and lifetime.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/EF18_069%2F0010018" target="_blank" >EF18_069/0010018: LABIR-PAV / Pre-application research of infrared technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>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
Name of the periodical
JOURNAL OF THERMAL SPRAY TECHNOLOGY
ISSN
1059-9630
e-ISSN
1544-1016
Volume of the periodical
31
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
23
Pages from-to
2068-2090
UT code for WoS article
000825229000002
EID of the result in the Scopus database
2-s2.0-85133597109