Protected article having a layered protective structure...

Details Protected article having a layered protective structure... Protected article having a layered protective structure...

2008-05-27

2008-05-27

Zimmerman, John J. (Department: 1794)

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

C428S628000, C428S632000, C428S669000, C416S24100B

Reexamination Certificate

active

07378159

ABSTRACT:
A protected article has a substrate and a protective structure overlying a surface of the substrate. The protective structure includes a protective layer overlying the surface of the substrate and having an aluminum content greater than that of the substrate, and a bond-coat layer of a bond-coat-layer metal. The bond-coat-layer metal has a bond-coat initial composition having at least about 60 percent by weight platinum, rhodium, palladium, or combinations thereof. There may be a diffusion-barrier layer between the surface of the substrate and the protective layer, and there may be a ceramic thermal barrier coating overlying the bond-coat layer.

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