Segmented thermal barrier coating
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Nov 13, 2001
Grant Date -
N/A
app pub date -
Mar 14, 2000
filing date -
Mar 14, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An article coated with a thermal barrier coating system, and method for preparation of a coated article. The article has a macro-segmented thermal barrier coating due to the presence of a pattern of three-dimensional features. The features may be a series of raised ribs formed on the substrate surface and being spaced from 0.05 inches to 0.30 apart. The ribs have a width W ranging from 0.005 inches to 0.02 inches, and a height R ranging from 25% to 100% of the thickness of the barrier coating. Alternately, the features may be a similar pattern of grooves formed in the surface of the substrate. Other embodiments provide segmentation by grooves or ribs in the bond coat or alternately grooves formed in the thermal barrier layer.
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