Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent
1998-10-06
2000-12-26
Copenheaver, Blaine
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
123 1R, 244 35R, 244123, 428218, 4283128, 4283166, 4283191, B32B 326, B64C 320
Patent
active
061656003
ABSTRACT:
A method of forming a multilayer ceramic coating system on a substrate that requires thermal protection from a hostile thermal environment. The method generally entails forming at least one tape that contains ceramic particles dispersed in an organic constituent, such as a binder and/or plasticizer. If a single tape is used, the tape is formed of multiple layers of different compositions and applied as a unit to the substrate, thereby forming at least an innermost layer and an outermost layer on the substrate. If multiple tapes are used, a first tape is applied to the substrate to form the innermost layer, and a second tape is applied to form the outermost layer. The tape/tapes are then sintered to form innermost and outermost ceramic layers, respectively, on the substrate. The tape/tapes are formed and processed such that the innermost ceramic layer has submicron voids to provide a desired level of porosity, while the outermost ceramic layer is thinner, smoother and less porous than the innermost ceramic layer.
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Ivkovich, Jr. Daniel P.
Murphy Jane A.
Rentz Thomas W.
Skoog Andrew J.
Copenheaver Blaine
General Electric Company
Hess Andrew C.
Narciso David L.
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