Thermal barrier coating material
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United States of America Patent
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Oct 6, 2009
Grant Date -
Nov 2, 2006
app pub date -
Sep 2, 2005
filing date -
Sep 10, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
from ambient temperature up to 1200° C. and superior to those of the presently widely-used thermal barrier coating materials. Even if it is subjected to long time calcinations at 1400° C. or is quenched to room temperature, it can still maintain the stable crystal structure. In addition, its thermal expansion trend matches quite well with that of the bond coating alloy. This is beneficial to the elimination of thermal stress generated between the substrate and the ceramic top coating during the thermal cycle and can significantly improve the thermal shock resistance of the coating. The present invention further relates to a method for producing a thermal barrier coating material and a method for preparing a thermal barrier coating.
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