Optimized high purity coating for high temperature thermal cycling applications
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United States of America Patent
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Issued Date -
Apr 12, 2007
app pub date -
Sep 13, 2006
filing date -
Oct 7, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention is directed to a blended material and method for obtaining thermal barriers for high temperature cycling applications that have both high sintering resistance to achieve a high service lifetime and low thermal conductivity to achieve high operating temperatures. These materials are additionally suited for use in high temperature abradable (rub seal) coatings. The invention provides desired coating structures so that the changes in the coating microstructure over the in-service lifetime are either limited or beneficial.
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