Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1578415 | Materials Science and Engineering: A | 2011 | 8 Pages |
Abstract
⺠High-temperature effects of fly-ash deposits on ceramic TBCs for syngas-fired gas-turbine engines are examined. ⺠Molten fly ash penetrates the entire thickness of conventional 7YSZ TBCs destroying them. ⺠Alternative TBCs of Gd2Zr2O7 composition are highly resistant to this type of damage. ⺠Arrest of fly-ash penetration in Gd2Zr2O7 TBCs is due to the formation of an impervious reaction layer at the interface between the TBC and the fly-ash layer.
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Authors
Andrew D. Gledhill, Kongara M. Reddy, Julie M. Drexler, Kentaro Shinoda, Sanjay Sampath, Nitin P. Padture,