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Comparison of Thermal Barrier Coating Stresses via High Energy X-Rays and Piezospectroscopy

Manero, Albert and Sofronsky, Stephen and Knipe, Kevin and Lacdao, Claudine and Smith, Matthew and Meid, Carla and Wischek, Janine and Karlsson, Anette M. and Bartsch, Marion and Raghavan, Seetha (2015) Comparison of Thermal Barrier Coating Stresses via High Energy X-Rays and Piezospectroscopy. In: 53rd AIAA Aerospace Sciences Meeting - AIAA SciTech, e0874. 53rd AIAA Aerospace Sciences Meeting, 05.-09. Jan. 2015, Kissimmee, Florida, USA. doi: 10.2514/6.2015-0874. ISBN eISBN: 978-1-62410-343-8.

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Thermal Barrier Coatings (TBC) have been instrumental in advancing the performance and e�ciency of turbine engines over the last decades. The use of high temperature ce- ramics has allowed increased temperatures by way of protecting the load bearing blade substrate and extending its lifetime. Today there continues to exist the need to under- stand the behavior of the TBC to extend the life and performance of both the TBC and the underlying substrate blades. In this study, the TBC was examined by the use of optical spectroscopy and synchrotron X-Ray di�raction to understand the strain and stress expe- rienced by each of the layers in the coating. Raman and Photoluminescence spectroscopy were employed to examine the thermally grown oxide layer (TGO) and the ceramic top coat and to identify the in uence of variations in temperature distribution. X-Ray di�rac- tion measurements were conducted at the Advanced Photon Source, at Argonne National Laboratory allowing the in-situ investigation of variation in loading conditions including a representative ight cycle. A pre-aged specimen was used for di�raction measurements for a more mature oxide layer. Optical spectroscopy measurements provided high resolution stress maps of the oxide scale. The results from this study provide a more complete un- derstanding as to the behavior of the TBC and its development through the lifetime, and can serve to validate and further the development numerical models.

Item URL in elib:https://elib.dlr.de/98338/
Document Type:Conference or Workshop Item (Speech)
Title:Comparison of Thermal Barrier Coating Stresses via High Energy X-Rays and Piezospectroscopy
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Manero, AlbertUniversity of Central Florida, Orlando, FL, USAUNSPECIFIEDUNSPECIFIED
Sofronsky, StephenUniversity of Central Florida, Orlando, FL, USAUNSPECIFIEDUNSPECIFIED
Knipe, KevinUniversity of Central Florida, Orlando, FL, USAUNSPECIFIEDUNSPECIFIED
Lacdao, ClaudineCleveland State University, Ohio, USAUNSPECIFIEDUNSPECIFIED
Smith, MatthewCleveland State University, Ohio, USAUNSPECIFIEDUNSPECIFIED
Karlsson, Anette M.Cleveland State University, Ohio, USAUNSPECIFIEDUNSPECIFIED
Raghavan, SeethaUniversity of Central Florida, Orlando, FL, USAUNSPECIFIEDUNSPECIFIED
Date:6 January 2015
Journal or Publication Title:53rd AIAA Aerospace Sciences Meeting - AIAA SciTech
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:e0874
ISBN:eISBN: 978-1-62410-343-8
Keywords:Thermal Barrier Coating, thermally grown oxide, piezospectroscopy, high energy X-ray diffraction
Event Title:53rd AIAA Aerospace Sciences Meeting
Event Location:Kissimmee, Florida, USA
Event Type:international Conference
Event Dates:05.-09. Jan. 2015
Organizer:American Institute of Aeronautics and Astronautics - AIAA
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 - Virtual Engine and Validation methods (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Experimental and Numerical Methods
Deposited By: Bartsch, Dr.-Ing. Marion
Deposited On:28 Sep 2015 08:31
Last Modified:11 Jul 2023 11:13

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