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Effect of Microstructure on CMAS Interaction of Axial Suspension and Solution Precursor Plasma Sprayed Thermal Barrier Coatings: YSZ & GZ

  • University of Nottingham

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

In the study, Axial Suspension Plasma Spray (SPS) was used to produce a range of columnar microstructures from Yttria Stabilized Zirconia (YSZ) suspension after an extensive experimental design. The optimized microstructure was applied to a multi-layer GZ/YSZ system, in which both layers were sprayed with SPS. In addition to SPS, a new GZ coating using Axial Solution Precursor Plasma Spray (SPPS) was developed and deposited on top of the SPS GZ coating. The durability in the furnace cycling test (FCT), as well as the consequences of CMAS infiltration into the columnar coatings was extensively studied on different microstructures. Preliminary CMAS test on the SPS coatings infiltrated them completely, leading to delamination. To minimize the detrimental effect of CMAS on the underlying SPS, the dense solution precursor GZ layer was aimed to act as a sealant to protect the underlying columnar SPS-GZ layer from molten CMAS infiltration.

Original languageEnglish
Title of host publicationInternational Thermal Spray Conference and Exposition
Subtitle of host publicationNext-Generation Thermal Spraying for Future Surfaces, ITSC 2023 - Conference Proceedings
EditorsFardad Azarmi, X. Chen, J. Cizek, H. Salimi Jazi, H. Koivuluoto, Y. Lau, R. Ortiz-Fernandez, Ozan C. Ozdemir, F. Toma, J. Veilleux, H. Che
PublisherASM International
Pages651-656
Number of pages6
ISBN (Electronic)9781713879572
DOIs
Publication statusPublished - 2023
Externally publishedYes
Event2023 International Thermal Spray Conference and Exposition, ITSC 2023 - Quebec City, Canada
Duration: 22 May 202325 May 2023

Publication series

NameInternational Thermal Spray Conference and Exposition: Next-Generation Thermal Spraying for Future Surfaces, ITSC 2023 - Conference Proceedings

Conference

Conference2023 International Thermal Spray Conference and Exposition, ITSC 2023
Country/TerritoryCanada
CityQuebec City
Period22/05/2325/05/23

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