The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 14, 2005
Filed:
Jul. 08, 2003
John Frederick Ackerman, Laramie, WY (US);
Michael James Weimer, Loveland, OH (US);
Joseph Aloysius Heaney, Middletown, OH (US);
William Scott Walston, Mason, OH (US);
Bangalore Aswatha Nagaraj, West Chester, OH (US);
John Frederick Ackerman, Laramie, WY (US);
Michael James Weimer, Loveland, OH (US);
Joseph Aloysius Heaney, Middletown, OH (US);
William Scott Walston, Mason, OH (US);
Bangalore Aswatha Nagaraj, West Chester, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
A method for forming an aluminide coating on a turbine engine component having an external surface and an internal cavity defined by an internal surface that is connected to the external surface by at least one hole. 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; flowing a tri-alkyl aluminum coating gas into the loaded coating chamber at a specified temperature, pressure, and time to deposit an aluminum coating on the external and internal surfaces of the component; and heating the component in a nonoxidizing atmosphere at a specified temperature and time to form an aluminide coating on the external and internal surfaces. The coated component is typically then maintained at an elevated temperature in the presence of oxygen to form an oxide coating on the external and internal surfaces of the component. In one embodiment, the turbine engine component is a turbine engine blade having an external surface and an internal cooling cavity having an internal surface that is connected to the external surface by cooling holes.