Abstract:
Disclosed herein is a process for coating a component, comprising applying a bond coat on a substrate of a component; applying a thermal barrier material to the bond coat; and applying a coating containing polynuclear aluminum oxide/hydroxide clusters, to the thermal barrier material. Disclosed herein too is a gas turbine engine component, comprising a superalloy substrate; a bond coat on the substrate; a thermal barrier material on the bond coat; and a coating containing polynuclear aluminum oxide/hydroxide clusters on the thermal barrier material.
Abstract:
A method of fabricating an article includes providing an arrangement of loose nanowires and bonding the loose nanowires together into a unitary cellular structure.
Abstract:
An article with an erosion protection layer. The erosion protection layer may include metal, intermetallic compound, ceramic or glass nanocellular foam particles or monolithic sheets. The particles are dispersed in a polymeric matrix and the monolithic sheets are infiltrated with polymeric material. The nanocellular foam ligaments have submicron cross-sectional diameters.
Abstract:
A transpiration-cooled article includes a body wall that has first and second opposed surfaces. The first surface is adjacent a passage that is configured to receive a pressurized cooling fluid. At least a portion of the body wall includes a nanocellular foam through which the pressurized cooling fluid from the passage can flow to the second surface. The article can be an airfoil that includes an airfoil body that has an internal passage and an outer gas-path surface. At least a portion of the airfoil body includes a nanocellular foam through which cooling fluid from the internal passage can flow to the gas-path surface.