Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Coating – specific composition or characteristic
Reexamination Certificate
2005-07-26
2005-07-26
Look, Edward K. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Coating, specific composition or characteristic
C416S24100B
Reexamination Certificate
active
06921251
ABSTRACT:
A turbine engine rotor component, such as a compressor or turbine disk or seal element, is protected from corrosion by depositing an aluminum or chromium coating on the component. The deposition can be 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 microns, typically from about 0.5 to about 3 microns. In one embodiment, the method is conducted in a vapor coating container having a hollow interior coating chamber, and includes the steps of loading the coating chamber with the component to be coated; and flowing a tri-alkyl aluminum or chromium carbonyl coating gas into the loaded coating chamber at a specified temperature, pressure, and time to deposit an aluminum or chromium coating on the surface of the component. The coated component is then heated in a nonoxidizing atmosphere to a specified temperature to form an aluminide or chromide coating on the surface. The coated component is typically then heated or maintained at an elevated temperature in the presence of oxygen to form an oxide coating on the surface of the component.
REFERENCES:
patent: 4078951 (1978-03-01), Denzine et al.
patent: 4568396 (1986-02-01), Vardiman
patent: 5077140 (1991-12-01), Luthra et al.
patent: 5098540 (1992-03-01), McKee
patent: 5660885 (1997-08-01), Hasz et al.
patent: 5780110 (1998-07-01), Schaeffer et al.
patent: 5795659 (1998-08-01), Meelu et al.
patent: 5900283 (1999-05-01), Vakil et al.
patent: 6066405 (2000-05-01), Schaeffer
patent: 6123997 (2000-09-01), Schaeffer et al.
patent: 6194086 (2001-02-01), Nenov et al.
patent: 6291084 (2001-09-01), Darolia et al.
patent: 6797408 (2004-09-01), Walston et al.
Ackerman John Frederick
Das Nripendra Nath
Hazel Brian Thomas
Heaney Joseph Aloysius
Nagaraj Bangalore Aswatha
General Electric Company
Hasse Donald E.
Hasse & Nesbitt LLC
Kershteyn Igor
Look Edward K.
LandOfFree
Aluminide or chromide coating of turbine engine rotor component does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Aluminide or chromide coating of turbine engine rotor component, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aluminide or chromide coating of turbine engine rotor component will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3379904