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Evaluation of preparation and combustion rig tests of an effusive cooled SiC/SiCN panel

Hönig, Sandrine and Süß, Fabia and Jain, Neraj and Jemmali, Raouf and Behrendt, Thomas and Mainzer, Bernd and Koch, Dietmar (2020) Evaluation of preparation and combustion rig tests of an effusive cooled SiC/SiCN panel. International Journal of Applied Ceramic Technology, pp. 1-12. Wiley. doi: 10.1111/ijac.13501. ISSN 1546-542X.

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Official URL: https://ceramics.onlinelibrary.wiley.com/doi/abs/10.1111/ijac.13501


SiC/SiCN ceramic matrix composites (CMCs) are promising candidates for components of aero-engines. To evaluate the properties of these CMCs under realistic conditions, a quasi-flat panel with effusion cooling holes was investigated in a high pressure combustor rig. A Tyranno SA3 fabric-based SiC/SiCN composite with high strength and strain to failure was manufactured via polymer infiltration and pyrolysis process. Due to its weak matrix no fiber coating was necessary for damage tolerant behavior. The cooling holes in the panel were introduced via laser drilling. An outer coating of CVD-based SiC was finally applied for enhanced oxidation resistance. The specimen was tested in the combustor rig and the cooling effectiveness was evaluated. The microstructure of laser machined holes was studied via microscopy and energy-dispersive X-ray spectroscopy. The macrostructure was investigated via computing tomography scans before and after the combustor test. Material performances at higher temperatures were estimated via a material performance index. Local microstructure modifications were observed after laser drilling. No crack formation was observed in the CMC panels after rig tests. The measured global cooling effectiveness of 0.76 and the analytical performance evaluation demonstrate the potential benefit of SiC/SiCN materials in combustor applications.

Item URL in elib:https://elib.dlr.de/135093/
Document Type:Article
Title:Evaluation of preparation and combustion rig tests of an effusive cooled SiC/SiCN panel
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Hönig, SandrineUNSPECIFIEDhttps://orcid.org/0000-0003-1217-5396UNSPECIFIED
Süß, FabiaUNSPECIFIEDhttps://orcid.org/0000-0002-5016-5781UNSPECIFIED
Jain, NerajUNSPECIFIEDhttps://orcid.org/0000-0002-7853-1894UNSPECIFIED
Behrendt, ThomasUNSPECIFIEDhttps://orcid.org/0000-0002-4154-3277UNSPECIFIED
Mainzer, BerndUNSPECIFIEDhttps://orcid.org/0000-0002-7358-492XUNSPECIFIED
Koch, DietmarUNSPECIFIEDhttps://orcid.org/0000-0003-4504-8721UNSPECIFIED
Date:7 March 2020
Journal or Publication Title:International Journal of Applied Ceramic Technology
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 1-12
EditorsEmailEditor's ORCID iDORCID Put Code
Keywords:ceramic matrix composites, heat engines, lasers, SiC/SiCN, silicon carbide, X-ray computed tomography
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:propulsion systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Combustion Chamber Technologies (old)
Location: Köln-Porz , Stuttgart
Institutes and Institutions:Institute of Structures and Design > Ceramic Composite Structures
Institute of Propulsion Technology > Combustor
Deposited By: Hönig, Dipl.-Ing. Sandrine
Deposited On:01 Jun 2020 13:13
Last Modified:24 Oct 2023 13:50

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