Optical: systems and elements – Having significant infrared or ultraviolet property
Reexamination Certificate
2011-07-12
2011-07-12
Nguyen, Thong (Department: 2872)
Optical: systems and elements
Having significant infrared or ultraviolet property
C359S599000
Reexamination Certificate
active
07978402
ABSTRACT:
Articles transparent to infrared radiation and resistant to impact and wear are provided. The article comprises a substrate and a composite coating disposed over the substrate and extending from an interface with the substrate to an external surface. The composite coating comprises a first phase and a second phase. The second phase has a higher resistance to erosive wear than the first phase. The coating comprises a compositional gradient proceeding from a first composition at the interface of the coating with the substrate to a second composition at the external surface, the first composition comprising a higher concentration of the first phase than that of the second composition.
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Brun Milivoj Konstantin
Loureiro Sergio Paulo Martins
Manoharan Mohan
Sweeney Sean Michael
Venkataramani Venkat Subramaniam
DiConza Paul J.
General Electric Company
Nguyen Thong
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