Stock material or miscellaneous articles – All metal or with adjacent metals – Having composition – density – or hardness gradient
Patent
1999-08-30
2000-12-26
Speer, Timothy
Stock material or miscellaneous articles
All metal or with adjacent metals
Having composition, density, or hardness gradient
428610, 428613, 428633, 428668, 428678, 428937, 416241R, 416241B, B32B 1500, B32B 518
Patent
active
061656283
ABSTRACT:
An article is described, which includes a metal-based substrate, such as a superalloy; a dense, primary bond layer; and a spongy secondary bond layer. A thermal barrier coating is applied over the secondary bond layer. The spongy layer has a microstructure which includes an open network of interconnected pores. A process is also described. It includes the step of applying a spongy, metallic bond layer over the substrate, followed by the application of a thermal barrier coating. A dense, primary bond layer may optionally be applied before the application of the spongy layer.
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Borom Marcus Preston
Gray Dennis Michael
Lau Yuk-Chiu
Pabla Surinder Singh
General Electric Company
Johnson Noreen C.
Speer Timothy
Stoner Douglas E.
Young Bryant
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