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Munawar, Ahmed Umar and Schulz, Uwe (2012) Lifetime investigations of new TBC materials. University-Roma Tre. Research Introduction of International PhD students. , 2012-06-04 - 2012-06-06, Rom, Italien. (Unpublished)
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Abstract
Lower thermal conductivity and high temperature stability are the two properties which are highly desired from ceramic top coat materials in TBC systems. Gadolinium Zirconate, Gd2Zr2O7, (GdZ) and Dyprosia Stabilized Zirconia (DySZ) are two of the candidate materials with such properties and consequently the TBC system would be able to work at higher turbine inlet temperature (TIT) or the lifetime can be increased. In the present study, life time measurements are done for the single and double layered Electron Beam Physical Vapor Deposition (EB-PVD) GdZ and DySZ samples by thermal-cycling tests. Both single and double layered samples of GdZ and DySZ have shown similar or better lifetimes than the standard YSZ samples. However, single layered TBCs showed better lifetime results than the respective double layers. In this study, changes in the microstructure, diffusion of elements and sintering of TBC materials with aging are observed.
| Item URL in elib: | https://elib.dlr.de/79077/ | ||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||
| Title: | Lifetime investigations of new TBC materials | ||||||||||||
| Authors: |
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| Date: | March 2012 | ||||||||||||
| Open Access: | No | ||||||||||||
| Gold Open Access: | No | ||||||||||||
| In SCOPUS: | No | ||||||||||||
| In ISI Web of Science: | No | ||||||||||||
| Publisher: | University-Roma Tre | ||||||||||||
| Status: | Unpublished | ||||||||||||
| Keywords: | Thermal Barrier Coatings, Gadolinium-zirconate, Dysprosia-stabilized zirconia, jet engines | ||||||||||||
| Event Title: | Research Introduction of International PhD students. | ||||||||||||
| Event Location: | Rom, Italien | ||||||||||||
| Event Type: | Other | ||||||||||||
| Event Start Date: | 4 June 2012 | ||||||||||||
| Event End Date: | 6 June 2012 | ||||||||||||
| Organizer: | Ahmed Umar Munawar | ||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||
| HGF - Program: | Aeronautics | ||||||||||||
| HGF - Program Themes: | Propulsion Systems (old) | ||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||
| DLR - Program: | L ER - Engine Research | ||||||||||||
| DLR - Research theme (Project): | L - Turbine Technologies (old) | ||||||||||||
| Location: | Köln-Porz | ||||||||||||
| Institutes and Institutions: | Institute of Materials Research > High Temperature and Functional Coatings | ||||||||||||
| Deposited By: | Munawar, Ahmed Umar | ||||||||||||
| Deposited On: | 03 Dec 2012 11:20 | ||||||||||||
| Last Modified: | 24 Apr 2024 19:45 |
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