Surinder Singh Pabla

6916529, Jul 12, 2005

Jan 9, 2003

10/338671

Surinder Singh Pabla - Greer SC, US
Farshad Ghasripoor - Scotia NY, US
Liang Jiang - Guilderland NY, US
Canan Uslu Hardwicke - Niskayuna NY, US
William Emerson Martinez Zegarra - Paucarpata, PE

General Electric Company - Schnectady NY

B32B015/04
B32B003/26
F03B003/12

428325, 428335, 4283122, 4283133, 4283126, 4283128, 4283144, 4283148, 4283184, 428680, 428655, 428650, 416241 R

An abradable coating composition for use on shrouds in gas turbine engines or other hot gas path metal components exposed to high temperatures containing an initial porous coating phase created by adding an amount of inorganic microspheres, preferably alumina-ceramic microballoons, to a base metal alloy containing high Al, Cr or Ti such as β-NiAl or, alternatively, MCrAlY that serves to increase the brittle nature of the metal matrix, thereby increasing the abradability and oxidation resistance of the coating at elevated temperatures. Coatings having a total open and closed porosity of between 20% and 55% by volume due to the presence of ceramic microballoons ranging in size from about 10 microns to about 200 microns have been found to exhibit excellent abradability for applications involving turbine shroud coatings. An abradable coating thickness in the range of between 40 and 60 ml provides improved performance for turbine shrouds exposed to gas temperatures between 1380 F. and 1800 F.

8261444, Sep 11, 2012

Oct 7, 2009

12/574943

Eklavya Calla - Rajasthan, IN
Surinder Pabla - Greer SC, US
Raymond Goetze - Simpsonville SC, US

General Electric Company - Schenectady NY

B23P 6/00

298892, 2988923, 29889, 295271, 427191, 427192

A method of manufacturing a rotor includes: (a) providing a core shaft; (b) cold spraying alloy powder particles onto the core shaft; (c) controlling the cold spraying to form sections at least of different shape along the core shaft to thereby form a near-net shape rotor; and (d) heat treating the near-net shape rotor to relieve stresses and to form diffusion bonding across interfaces between individual powder particles and the core shaft, and finish-shaping said near-net shape rotor.

8318251, Nov 27, 2012

Sep 30, 2009

12/570696

Dennis William Cavanaugh - Simpsonville SC, US
Vinod P. Pareek - Albany NY, US
Nuo Sheng - Schenectady NY, US
Surinder Pabla - Greer SC, US
Daniel J. Dorriety - Travelers Rest SC, US

General Electric Company - Schenectady NY

C23C 16/06
B05D 3/02

427250, 42725534, 42725539

A method and composition are provided for coating honeycomb seals and, more specifically, to a method and slurry for applying an aluminide coating onto honeycomb seals. The method includes preparing a slurry of a powder containing a metallic aluminum alloy having a melting temperature higher than aluminum, an activator capable of forming a reactive halide vapor with the metallic aluminum, and a binder containing an organic polymer. The slurry is applied to surfaces of the honeycomb seal, which is then heated to remove or burn off the binder, vaporize and react the activator with the metallic aluminum to form the halide vapor, react the halide vapor at the substrate surfaces to deposit aluminum on the surfaces of the seal, and diffuse the deposited aluminum into the surfaces to form a diffusion aluminide coating.

8337996, Dec 25, 2012

Nov 22, 2010

12/951350

Surinder Singh Pabla - Greenville SC, US
Vinod Kumar Pareek - Schenectady NY, US
Suchismita Sanyal - Kamataka, IN
Krishnamurthy Anand - Kamataka, IN
Prajina Bhattacharya - Kamataka, IN

General Electric Company - Schenectady NY

B21D 39/00

428623, 416241 B, 416241 R, 428701

A vanadium resistant coating system resistant to high temperature vanadium attack. The system comprises a high temperature superalloy substrate. A bond coat overlies the superalloy substrate. The bond coat may be applied in multiple layers. A ceramic coating overlies the bond coat. The ceramic coating further comprises a zirconium oxide stabilized by at least one cation selected from the group consisting of Yb, Lu, Sc and Ce, in the amounts of about 5-10 weight percent. An overcoat may overlie the ceramic coating. The overcoat may be a sacrificial layer of YSZ infiltrated with cations having an atomic radius larger than Y. Alternatively, the overcoat may comprise zirconium oxide stabilized by Ce.

20020098294, Jul 25, 2002

Feb 7, 2000

09/499165

Melvin Jackson - Niskayuna NY, US
Theodore Grossman - Hamilton OH, US
Adrian Beltran - Ballston Spa NY, US
Colleen Rimlinger - San Diego CA, US
John Wood - St. Johnsville NY, US
Sonja Olson - Burnt Hills NY, US
Surinder Pabla - Rexford NY, US

B05D001/36
C23C004/08

427/454000, 427/142000, 427/455000, 427/456000

A primary layer of an MCrAlY-type material is first applied to a metal-based substrate by a vacuum plasma spray (VPS) technique, or by HVOF. A secondary layer is then also applied by VPS or HVOF. It is formed of the following alloy (in atom percent): 0 to about 25 cobalt; about 7 to 25 chromium; about 18 to about 55 aluminum; 0 to about 1 yttrium; and 0 to about 2 silicon, with the balance comprising nickel. The applied layers are then heat-treated. Related articles are also described.

20080048357, Feb 28, 2008

Aug 25, 2006

11/509964

Hua Wang - Clifton Park NY, US
Kurtis Montgomery - Torrance CA, US
Wayne Hasz - Pownal VT, US
Vishal Agarwal - Redondo Beach CA, US
Surinder Pabla - Greer SC, US
Warren Nelson - Clifton Park NY, US

B29C 47/00
B29C 49/00

26421111, 264540

A method of fabricating a solid oxide fuel cell that includes the steps of: (a) inputting raw materials for a layer of the solid oxide fuel cell into a screw extruder; (b) mixing the raw materials into a mixture as the raw materials pass through the screw extruder; (c) de-airing the mixture of raw materials as the raw materials pass through the screw extruder; and (d) extruding, the mixture through an opening at a downstream end of the screw extruder. The screw extruder may be a twin-screw extruder.

20090176110, Jul 9, 2009

Jan 8, 2008

11/970604

Surinder Singh Pabla - Greer SC, US
Jon Conrad Schaeffer - Simpsonville SC, US
Vinod Kumar Pareek - Albany NY, US
David Vincent Bucci - Simpsonville SC, US
Thomas Moors - Simpsonville SC, US
Jane Marie Lipkin - Niskayuna NY, US

GENERAL ELECTRIC COMPANY - Schenectady NY

C23C 4/10
B32B 15/04

428450, 428457, 4284722, 428469, 427453, 427452

A coating system and process capable of providing erosion and corrosion-resistance to a component, particularly a steel compressor blade of an industrial gas turbine. The coating system includes a metallic sacrificial undercoat on a surface of the component substrate, and a ceramic topcoat deposited by thermal spray on the undercoat. The undercoat contains a metal or metal alloy that is more active in the galvanic series than iron, and electrically contacts the surface of the substrate. The ceramic topcoat consists essentially of a ceramic material chosen from the group consisting of mixtures of alumina and titania, mixtures of chromia and silica, mixtures of chromia and titania, mixtures of chromia, silica, and titania, and mixtures of zirconia, titania, and yttria.

20090297720, Dec 3, 2009

May 29, 2008

12/128849

Thodla Ramgopal - Dublin OH, US
Krishnamurthy Anand - Karnataka, IN
David Vincent Bucci - Simpsonville SC, US
Nitin Jayaprakash - Karnataka, IN
Jane Marie Lipkin - Niskayuna NY, US
Tamara Jean Muth - Ballston Lake NY, US
Surinder Singh Pabla - Greer SC, US
Vinod Kumar Pareek - Albany NY, US
Guru Prasad Sundararajan - Basavanagar, IN

GENERAL ELECTRIC COMPANY - Schenectady NY

B05D 1/10
B05D 7/14
C09D 5/08
C23C 4/08

427455, 427201, 106 1405

Disclosed herein is an erosion and corrosion resistant coating comprising a metallic binder, a plurality of hard particles, and a plurality of sacrificial particles. Also disclosed is a method of improving erosion and corrosion resistance of a metal component comprising disposing on a surface of the metal component the foregoing erosion and corrosion resistant coating comprising, and a metal component comprising a metal component surface and the foregoing erosion and corrosion resistant coating comprising a first surface and a second surface opposite the first surface, wherein the first surface is disposed on the metal component surface.