Journal
CERAMICS INTERNATIONAL
Volume 32, Issue 7, Pages 775-778Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2005.05.014
Keywords
surface; corrosion; silicate; engine components
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The phase stability and recession mechanism of Lu2Si2O7 were examined in a high speed steam jet environment at 1300 and 1500 degrees C for a 100 h exposure time test. After high temperature steam jet exposure, a porous microstructure was formed on the exposed samples surface. Microstructural analysis indicated that the grain size of the 1500 degrees C sample was slightly larger than that of the 1300 degrees C sample. At 1300 degrees C, Lu2Si2O7 completely decomposed to form a Lu2SiO5. On the other hand, both Lu2SiO5 and Lu2Si2O7 phases were observed in the 1500 degrees C test sample. (c) 2005 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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