Antonio F Maricocchi

6342278, Jan 29, 2002

Sep 29, 1999

09/407872

Joseph D. Rigney - Milford OH
Antonio F. Maricocchi - Loveland OH
Brent R. Tholke - Sycamore Township OH
Karl S. Fessenden - Wilder KY
John D. Evans, Sr. - Springfield OH

General Electric Company - Cincinnati OH

B05D 134

427567, 427585, 42725531, 42725532

A method of depositing a ceramic thermal barrier coating on an article that will be subjected to a hostile environment, such as turbine, combustor and augmentor components of a gas turbine engine. The thermal barrier coating is deposited by electron beam physical vapor deposition (EBPVD) using process parameters that include an absolute pressure of greater than 0. 010 mbar and an oxygen partial pressure of greater than 50%, preferably at or close to 100%. Under these conditions, the desired ceramic material is evaporated with an electron beam to produce a vapor that deposits on the component to form a thermal barrier coating of the ceramic material.

6413584, Jul 2, 2002

Mar 10, 2000

09/522876

Roger D. Wustman - Loveland OH
Antonio F. Maricocchi - Loveland OH
Jonathan P. Clarke - West Chester OH

General Electric Company - Schenectady NY

C23L 1612

427250, 427252, 4272557, 427272

A gas turbine component article has an airfoil section and is formed of a nickel-base superalloy. An unmasked region of the airfoil section has a platinum aluminide protective coating, and a masked region of the airfoil section has an aluminide coating. The platinum aluminide preferably is deposited at a trailing edge of the airfoil section that is susceptible to low-cycle fatigue damage when a platinum aluminide coating is present.

6447854, Sep 10, 2002

Jul 21, 2000

09/621422

David V. Rigney - Cincinnati OH
Antonio F. Maricocchi - Loveland OH
David J. Wortman - Niskayuna NY
Robert W. Bruce - Loveland OH
Joseph D. Rigney - Milford OH

General Electric Company - Schenectady NY

C23C 1430

427596, 42725519, 42725531, 42725536

A method for producing a thermal barrier coating system on an article that will be subjected to a hostile environment. The thermal barrier coating system is composed of a metallic bond coat and a ceramic thermal barrier coating having a columnar grain structure. The method generally entails forming the bond coat on the surface of a component, and then grit blasting the bond coat with an abrasive media having a particle size of greater than 80 mesh. The component is then supported within a coating chamber containing at least two ingots of the desired ceramic material. An absolute pressure of greater than 0. 014 mbar is established within the chamber containing oxygen and an inert gas. Thereafter, the ceramic ingots are vaporized with an electron beam such that the vapor deposits on the surface of the component to form a layer of the ceramic material on the surface.

6589351, Jul 8, 2003

Jul 24, 2000

09/624808

Robert William Bruce - Loveland OH
Antonio Frank Maricocchi - Loveland OH
John Douglas Evans, Sr. - Springfield OH
Rudolfo Viguie - Cincinnati OH
David Vincent Rigney - Cincinnati OH
David John Wortman - Niskayuna NY
William Seth Willen - Glastonbury CT

General Electric Company - Schenectady NY

C23C 1600

118726, 118723 EB, 118728, 118724

An electron beam physical vapor deposition (EBPVD) apparatus and a method for using the apparatus to produce a coating material (e. g. , a ceramic thermal barrier coating) on an article. The EBPVD apparatus generally includes a coating chamber that is operable at elevated temperatures and subatmospheric pressures. An electron beam gun projects an electron beam into the coating chamber and onto a coating material within the chamber, causing the coating material to melt and evaporate. An article is supported within the coating chamber so that vapors of the coating material deposit on the article. The operation of the EBPVD apparatus is enhanced by the inclusion of a crucible that supports the coating material and is configured to be efficiently cooled so as to reduce the rate at which the process temperature increases within the coating chamber.

6695587, Feb 24, 2004

May 6, 2002

10/139427

Roger D. Wustman - Loveland OH
Antonio F. Maricocchi - Loveland OH
Jonathan P. Clarke - West Chester OH

General Electric Company - Schenectady NY

F01D 528

416241R

A gas turbine component article has an airfoil section and is formed of a nickel-base superalloy. An unmasked region of the airfoil section has a platinum aluminide protective coating, and a masked region of the airfoil section has an aluminide coating. The platinum aluminide preferably is deposited at a trailing edge of the airfoil section that is susceptible to low-cycle fatigue damage when a platinum aluminide coating is present.

6770333, Aug 3, 2004

Apr 30, 2002

10/063494

Robert W. Bruce - Loveland OH
Antonio F. Maricocchi - Loveland OH
Roger D. Wustman - Loveland OH
Karl S. Fessenden - Wilder KY
John D. Evans - Springfield OH

General Electric Company - Schenectady NY

C23C 1430

427596, 42725532, 427318

A method of operating an EBPVD apparatus ( ) to deposit a ceramic coating on an article ( ), such that the thermal conductivity of the coating is both minimized and stabilized. More particularly, the EBPVD apparatus ( ) is operated to perform multiple successive coating operations which together constitute a coating campaign. During the campaign, the surface temperatures of the articles ( ) being coated do not exceed about 1000Â C. as a result of the combined heat transfer from the coating chamber ( ) to the articles ( ) being reduced during the course of the campaign, even though the temperature within the coating chamber ( ) continuously rises during successive coating operations of the campaign. Ceramic coatings deposited at such relatively low temperatures exhibit lower and more stable thermal conductivities.

6863937, Mar 8, 2005

Nov 19, 2002

10/299646

Robert William Bruce - Loveland OH, US
Antonio Frank Maricocchi - Loveland OH, US
Christopher Lee Lagemann - Cincinnati OH, US
John Douglas Evans, Sr. - Springfield OH, US
Keith Humphries Betscher - West Chester OH, US
Rudolfo Viguie - Cincinnati OH, US
David Vincent Rigney - Cincinnati OH, US
David John Wortman - Niskayuna NY, US
William Seth Willen - Glastonbury CT, US

General Electric Company - Schenectady NY

C23C014/30

427566, 427596, 42725532

An electron beam physical vapor deposition (EBPVD) apparatus and a method for using the apparatus to produce a coating material (e. g. , a ceramic thermal barrier coating) on an article. The EBPVD apparatus generally includes a coating chamber that is operable at elevated temperatures and subatmospheric pressures. An electron beam gun projects an electron beam into the coating chamber and onto a coating material within the chamber, causing the coating material to melt and evaporate. An article is supported within the coating chamber so that vapors of the coating material deposit on the article. The operation of the EBPVD apparatus is enhanced by the inclusion or adaptation of one or more mechanical and/or process modifications, including those necessary or beneficial when operating the apparatus at coating pressures above 0. 010 mbar.

6946034, Sep 20, 2005

Aug 19, 2003

10/643262

Robert William Bruce - Loveland OH, US
Antonio Frank Maricocchi - Loveland OH, US
Christopher Lee Lagemann - Cincinnati OH, US
John Douglas Evans, Sr. - Springfield OH, US
Keith Humphries Betscher - West Chester OH, US
Rudolfo Viguie - Cincinnati OH, US
David Vincent Rigney - Cincinnati OH, US
David John Wortman - Niskayuna NY, US
William Seth Willen - Glastonbury CT, US

General Electric Company - Schenectady NY

C23C014/00

118719, 118723 EB, 118726

An electron beam physical vapor deposition (EBPVD) apparatus for producing a coating material (e. g. , a ceramic thermal barrier coating) on an article. The EBPVD apparatus generally includes a coating chamber that is operable at elevated temperatures and subatmospheric pressures. An electron beam gun projects an electron beam into the coating chamber through an aperture in a wall of the chamber and onto a coating material within a coating region defined within the chamber, causing the coating material to melt and evaporate. An article is supported within the coating chamber so that vapors of the coating material deposit on the article. The operation of the EBPVD apparatus is enhanced by the inclusion within the coating chamber of a second chamber that encloses the aperture so as to separate the aperture from the coating region. The second chamber is maintained at a pressure lower than the coating region.