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Novel magnetron sputtered yttrium-silicon-iron oxide as CMAS resistant top coat material for environmental barrier coatings

Rose, Alexandra and Gomez Chavez, Juan J and Mechnich, Peter and Kelm, Klemens and Schulz, Uwe and Naraparaju, Ravisankar (2023) Novel magnetron sputtered yttrium-silicon-iron oxide as CMAS resistant top coat material for environmental barrier coatings. Corrosion Science (215), p. 111053. Elsevier. doi: 10.1016/j.corsci.2023.111053. ISSN 0010-938X.

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Official URL: https://www.sciencedirect.com/science/article/abs/pii/S0010938X23000951

Abstract

A nano-crystalline coating containing X2-yttrium monosilicate, yttrium ferrite and yttria was developed as a potential CaO-MgO-Al2O3-SiO2 (CMAS) resistant top layer for Environmental Barrier Coatings (EBCs) to protect Ceramic Matrix Composites. High temperature reactions at 1300 °C with a synthetic CMAS and Colima volcanic ash revealed that the phases react quickly with the melt to oxyapatite and garnet which effectively restricted the infiltration into the coating. The Fe played a major role in stabilizing the multi-phase coating as well as X2-yttrium monosilicate. Iron-free YSi-Ox coatings could not induce garnet formation and found to be less effective in restricting the CMAS infiltration.

Item URL in elib:https://elib.dlr.de/198153/
Document Type:Article
Title:Novel magnetron sputtered yttrium-silicon-iron oxide as CMAS resistant top coat material for environmental barrier coatings
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Rose, AlexandraUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gomez Chavez, Juan JUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mechnich, PeterUNSPECIFIEDhttps://orcid.org/0000-0003-4689-8197146023974
Kelm, KlemensUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schulz, UweUNSPECIFIEDhttps://orcid.org/0000-0003-0362-8103UNSPECIFIED
Naraparaju, RavisankarUNSPECIFIEDhttps://orcid.org/0000-0002-3944-1132UNSPECIFIED
Date:15 February 2023
Journal or Publication Title:Corrosion Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI:10.1016/j.corsci.2023.111053
Page Range:p. 111053
Publisher:Elsevier
ISSN:0010-938X
Status:Published
Keywords:Rare earth oxides Sputtered films Oxide coatings CMAS
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Clean Propulsion
DLR - Research area:Aeronautics
DLR - Program:L CP - Clean Propulsion
DLR - Research theme (Project):L - Advanced Materials and New Manufacturing Technologies
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > High Temperature and Functional Coatings
Institute of Materials Research > Structural and Functional ceramics
Deposited By: Rose, Alexandra
Deposited On:06 Nov 2023 10:24
Last Modified:06 Nov 2023 10:24

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