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US 8,802,236 B2Granted
Durable transparent intelligent coatings for polymeric transparencies
AssigneeThe Boeing Company
InventorsKjersta L. Larson-Smith, Vasan S. Sundaram, David A. Bowen, Shawn M. Pare, Liam S. C. Pingree
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Abstract
A hard, transparent coating for a substrate and associated method for coating is disclosed. The coating includes alternating layers of a soft coating and a hard coating. The coating further includes a sensor. The electrical resistivity of the sensor may be measured to determine if the coating has been degraded. The coating may further include a hydrophobic outer layer.
Claims20
A coating, comprising:
- at least one soft coating;
- at least one hard coating;
- and
- a sensor positioned between one soft coating of the at least one soft coating and one hard coating of the at least one hard coating;
- wherein the at least one soft coating and the at least one hard coating have the general formula SiOxCy wherein the soft coating composition is, in weight percent, 30-35% Si, 30-35% C and 30-35% O.
2 more elements
A composite article comprising:
- a substrate;
- and
- a coating deposited upon the substrate;
- wherein the coating comprises:
- a soft coating having the general formula SiOxCy in weight percent, 30-35% Si, 30-35% C and 30-35% O, disposed upon the substrate;
- a hard coating having the general formula SiOxCy disposed upon the soft coating;
- and
- a sensor disposed upon the hard coating.
5 more elements
Dependencies are inferred from the claim text.