General Electric Company

James Andrew Hahn

Bangalore Aswatha Nagaraj

Michael James Weimer

Joshua L Miller

Michael John Franks

Gregory Carl Gemeinhardt

Manuel Acosta

Joseph Aloysius Heaney

Lara Liou

Jon Conrad Schaeffer

John Frederick Ackerman

William Scott Walston

Joseph Aloysius Heany

A bonded part includes: a substrate including a polymer matrix material; a metal layer; a layer of adhesive between the substrate and the metal layer; and a layer of smut between the layer of adhesive and the metal layer.

Metal surface preparation

A part that includes a metal layer positioned on it. The part includes a composite core. A metal layer is positioned on the composite core such that the layer of adhesive is sandwiched between the composite core and the metal layer. A layer of smut that is positioned between the layer of adhesive and the metal layer.

A gas turbine component, such as a turbine disk or a turbine seal element, is protected by depositing an oxide coating on the gas turbine component. The deposition is performed by a vapor deposition process such as metal-organic chemical vapor deposition (MOCVD) to a coating thickness of from about 0.2 to about 50 micrometers, preferably from about 0.5 to about 3 micrometers. The deposited oxide may be an oxide of aluminum, silicon, tantalum, titanium, and chromium.

Protection of a gas turbine component by a vapor-deposited oxide coating

A substrate is protected by a multilayer protective coating having an oxide layer, and a phosphate/organic binder layer initially overlying the oxide layer. The multilayer protective coating is cured by first degassing the multilayer protective coating in a pre-cure degassing temperature range of from about 250&deg; F. to about 500&deg; F. for a time of at least about 30 minutes. The multilayer protective coating is thereafter heated to a curing temperature range of from about 1200&deg; F. to about 1400&deg; F. for a time of at least about 30 minutes.

Protecting a substrate with a multilayer oxide/phosphate coating having a temperature-stepped cure

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Maineville, OH, United States of America

James Andrew Hahn