Multilayer thermal barrier coating
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United States of America Patent
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Jul 10, 2012
Grant Date -
Dec 31, 2009
app pub date -
May 26, 2009
filing date -
May 29, 2008
priority date (Note) -
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Abstract
Components (1) have a thermal barrier coating (2-6) on the surface thereof, wherein the thermal barrier coating includes at least one layer (3) having chemically stabilized zirconia, and wherein at least indirectly adjacent to the layer (3) with chemically stabilized zirconia and on its surface facing side, there is provided a protective layer (4) and/or a infiltration zone (5) which does not react with environmental contaminant compositions that contain oxides of calcium and which does not react with the material of the layer (3) having chemically stabilized zirconia. Methods for making such components as well as to uses of specific systems for coating thermal barrier coatings, can prevent CMAS.
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