General Electric Company

Momentive Performance Materials Gmbh

Haier US Appliance Solutions, Inc.

The United States of America As Represented by the Department of Energy

Mott Corporation

Generla Electric Company

Venkat Subramaniam Venkataramani

Steven Jude Duclos

Ching-Pang Lee

Melvin Robert Jackson

Radislav Alexandrovich Potyrailo

Alok Mani Srivastava

Wayne Charles Hasz

Charles D Greskovich

James Scott Vartuli

Irene T Spitsberg

Lowell Scott Smith

Ramgopal Darolia

Douglas Glenn Wildes

Curtis E Scott

Yang Cao

Anant Achyut Setlur

James Anthony Ruud

Curtis Alan Johnson

Stephen Francis Rutkowski

Neelesh Nandkumar Sarawate

Marcus P Borom

Patricia Chapman Irwin

Mohamed Rahmane

Mark Daniel Gorman

Lawrence E Szala

Brett Allen Boutwell

Robert J Wojnarowski

Steven Francis LeBoeuf

Ertugrul Berkcan

Mark Philip D'Evelyn

Larry Neil Lewis

Holly Ann Comanzo

Bangalore Aswatha Nagaraj

Shyh-Chin Huang

Lionel M Levinson

John Frederick Ackerman

Glen Harold Kirby

Robert William Bruce

Victor Petrovich Ostroverkhov

Slawomir Rubinsztajn

James Anthony Brewer

Sergio Paulo Martins Loureiro

Mohandas Nayak

Brent Allen Clothier

Mohan Manoharan

Robert Joseph Lyons

Shankar Sivaramakrishnan

Hrishikesh Keshavan

Kevin Paul McEvoy

Stephen Francis Bancheri

Clifford Bueno

Larry Steven Rosenzweig

Daniel Qi Tan

Adrian Ivan

Robert Stephen Lewandowski

Raul Eduardo Ayala

Martin Kin-Fei Lee

Kalaga Murali Krishna

Digamber Gurudas Porob

Gopi Chandran Ramachandran

Peter William Lorraine

Vivek Venugopal Badami

Weston Blaine Griffin

Canan Uslu Hardwicke

Stephen Daley Arthur

Kanakasabapathi Subramanian

John Patrick Lemmon

Frederic Joseph Klug

Douglas Gerard Konitzer

Michael Francis Xavier Gigliotti

Guanghua Wang

Dan Hancu

Milivoj Konstantin Brun

Daniel George Norton

Samhita Dasgupta

James Walter LeBlanc

Chang Wei

Vinayak Tilak

David Gilles Gascoyne

Weijun Yin

Mark Allen Cheverton

Thomas Francis McNulty

Elliott West Shanklin

Benjamin Hale Winkler

Anthony Mark Thompson

Shu Ching Quek

Sundeep Kumar

Jeffrey Bernard Fortin

Wesley S Hackenberger

Brett Allen Rohrer Boutwell

Venkatesan Manivannan

Steven Alfred Tysoe

Dalong Zhong

Badri Narayan Ramamurthi

Charles Adrian Becker

Oltea Puica Siclovan

Emilie Thorbjorg Saulnier

Svetlana Selezneva

Chandra Sekher Yerramalli

Roger John Petterson

Disclosed herein is a porous membrane comprising a porous substrate; a porous ceramic coating disposed on the porous substrate; where an average pore size of pores in the porous substrate are larger than an average pore size of pores in the porous coating. Disclosed herein is a method of manufacturing a porous membrane comprising disposing upon a porous substrate a porous ceramic coating, where the porous ceramic coating has an average pore size that is less than an average pore size of the porous substrate.

Engineered coating for filters and methods of manufacture thereof

A turbine system including a sealing component is presented. The sealing component is positioned in a gap between adjacent turbine components of the turbine system. The sealing component includes a metallic shim including a high-temperature-resistant alloy in a single crystal form. A turbine shroud assembly including the sealing component is also presented.

Turbine systems with sealing components

The present invention is directed to a squeegee apparatus which includes a main housing including an inlet end and an outlet end, the outlet end including an extrusion face and a protruding lip member, the inlet end including an inlet opening and the extrusion face including at least one outlet opening, wherein the inlet opening and the at least one outlet opening are in fluid communication with each other within the main housing. The present invention is also directed to a method for repairing a thermal barrier coating with a squeegee apparatus including supplying a repair composition into the inlet opening of the squeegee apparatus and depositing the repair composition from the at least one outlet opening onto the damaged region and concurrently traversing the squeegee apparatus over the damaged region while contacting a thermal barrier coating adjacent to the damaged region with the lip member.

Squeegee apparatus and methods of use thereof

A coated seal slot system for turbomachinery includes a first turbine component comprising a first groove having at least one first coating attached to at least a portion of the first groove of the first turbine component, a second turbine component comprising a second groove having at least one second coating attached to at least a portion of the second groove of the second turbine component. The first and the second turbine components are disposable adjacent to each other with the first groove having the first coating and the second groove having the second coating together forming a coated seal slot extending across a gap between the first turbine component and the second turbine component. A seal is disposable in the coated seal slot and extendable across the gap between the first and the second turbine components and engageable with the first coating and the second coating to inhibit leakage of gas through the gap.

Coated seal slot systems for turbomachinery and methods for forming the same

A method of monitoring a surface temperature of a hot gas path component includes directing an excitation beam having an excitation wavelength at a layer of a sensor material composition deposited on a hot gas path component to induce a fluorescent radiation. The method includes measuring fluorescent radiation emitted by the sensor material composition. The fluorescent radiation includes at least a first intensity at a first wavelength and a second intensity at a second wavelength. The surface temperature of the hot gas path component is determined based on a ratio of the first intensity at the first wavelength and the second intensity at the second wavelength of the fluorescent radiation emitted by the sensor material composition.

Methods for monitoring strain and temperature in a hot gas path component

An article including a substrate and a plurality of coatings disposed on the substrate is presented. The plurality of coatings includes a thermal barrier coating disposed on the substrate; and a protective coating including a calcium-magnesium-aluminum-silicon-oxide (CMAS)-reactive material disposed on the thermal barrier coating. The CMAS-reactive material includes an NZP-type material. The CMAS-reactive material is present in the plurality of coatings in an effective amount to react with a CMAS composition at an operating temperature of the thermal barrier coating, thereby forming a reaction product having one or both of melting temperature and viscosity greater than that of the CMAS composition. A method of making the article and a related turbine engine component are also presented.

Article and method of making thereof

Articles having coatings that are resistant to high temperature degradation are described, along with methods for making such articles. The article comprises a coating disposed on a substrate. The coating comprises a plurality of elongated surface-connected voids. The article further includes a protective agent disposed within at least some of the voids of the coating; the protective agent comprises a substance capable of chemically reacting with liquid nominal CMAS to form a solid crystalline product outside the crystallization field of said nominal CMAS. This solid crystalline product has a melting temperature greater than about 1200 degrees Celsius. The method generally includes disposing the protective agent noted above within the surface connected voids of the coating at an effective concentration to substantially prevent incursion of CMAS materials into the voids in which the protective agent is disposed.

Articles for high temperature service and method for making

In accordance with one aspect of the present invention, a heating device is presented. The heating device includes a pyrocatalytic, non-stick coating disposed on at least one surface. The pyrocatalytic non-stick coating includes (i) a binder derived from a silane, a polysiloxane, a polysilazane, or combinations thereof; and (ii) a catalyst dispersed within the binder, wherein the catalyst comprises a pervoskite crystalline material, a pyrochlore crystalline material, a spinel crystalline material, an ilmenite crystalline material, or combinations hereof.

Non-stick, pyrolytic coatings for heating devices

Articles, such as components for high temperature turbomachinery components, include one or more coatings bearing certain perovskite compositions resistant to incursion by liquid calcium-magnesium-aluminum-silicon-oxide (CMAS) materials during service. The CMAS-reactive material includes a perovskite-structured oxide, which comprises a) a rare earth element, b) niobium, tantalum or a combination of tantalum and niobium, and c) oxygen. The CMAS-reactive material is present in an effective amount to react with a CMAS composition at an operating temperature, thereby forming a reaction product having one or both of melting temperature and viscosity greater than that of the CMAS composition.

An article including a substrate and a plurality of coatings disposed on the substrate is presented. The plurality of coatings includes a thermal barrier coating disposed on the substrate; and a protective coating including a calcium-magnesium-aluminum-silicon-oxide (CMAS)-reactive material disposed on the thermal barrier coating. The CMAS-reactive material has an orthorhombic weberite crystal structure. The CMAS-reactive material is present in the plurality of coatings in an effective amount to react with a CMAS composition at an operating temperature of the thermal barrier coating, thereby forming a reaction product having one or both of melting temperature and viscosity greater than that of the CMAS composition. A method of making the article and a related turbine engine component are also presented.

Coating systems and processes by which the coating systems can be deposited to be resistant to contaminants, and particularly resistant to infiltration and damage caused by CMAS. The coating systems include inner and outer ceramic layers. The inner ceramic layer consists essentially of zirconia stabilized by about 6 to about 9 weight percent yttria and optionally contains greater than 0.5 to 10 weight percent hafnium oxide. The outer ceramic layer overlies and contacts the inner ceramic layer to define the outermost surface of the coating system. The outer ceramic layer consists essentially of zirconia stabilized by about 25 to about 75 weight percent yttria, has a thickness that is less than the thickness of the inner ceramic layer and further contains greater than 0.5 to 10 weight percent hafnium oxide and optionally 1 to 10 weight percent tantalum oxide. The outer ceramic layer has a porosity level that is lower than that of the inner ceramic layer.

Thermal barrier coating systems and processes therefor

A method for making a catalyst composition suitable for various purposes, such as the reduction of nitrogen oxides, is provided. The method includes combining dawsonite or a dawsonite derivative with a catalytic active element.

Method for making a catalyst composition

A method of processing a ceramic electrolyte suitable for use in a fuel cell is provided. The method comprises situating a ceramic electrolyte layer over an anode layer; and subjecting the ceramic electrolyte layer to a stress prior to operation of the fuel cell, by: exposing the top surface of the electrolyte layer to an oxidizing atmosphere and the bottom surface of the electrolyte layer to a reducing atmosphere; and heating the electrolyte layer. The stress causes a substantial increase in the number of microcracks, or in the average size of the microcracks, or in both the number of the microcracks and their average size. A solid oxide fuel cell comprising a ceramic electrolyte layer processed by the disclosed method is also provided.

Method of processing a ceramic electrolyte, and related articles

The present invention details a process for producing a catalyst powder. The steps of the process include preparing catalyst slurry, drying, pyrolyzing, and calcining the catalyst slurry to obtain a calcined catalyst powder. The catalyst slurry comprises a catalyst, a liquid carrier, a templating agent, and a catalyst substrate. The catalyst slurry is dried to obtain a raw catalyst powder. The raw catalyst powder is heated in a first controlled atmosphere to obtain a pyrolyzed catalyst powder and the pyrolyzed catalyst powder is calcined in a second controlled atmosphere to obtain a calcined catalyst powder. A method of fabricating a catalyst surface and catalytic converter using the prepared catalyst powder is also illustrated.

Process for preparing catalyst powder

A method of processing a ceramic layer is provided. The method comprises the steps of providing a ceramic layer comprising a plurality of microcracks; infiltrating at least some of the plurality of microcracks with a liquid precursor comprising at least one oxidizable metal ion; and exposing the ceramic layer to a base having a pH value of at least about 9, so as to chemically convert the oxidizable metal ion into an oxide, thereby decreasing the porosity of the ceramic layer. A solid oxide fuel cell is provided. The solid oxide fuel cell comprises an anode; a cathode; and a ceramic electrolyte disposed between the anode and the cathode. The ceramic electrolyte is processed by the method comprising the steps of providing a ceramic electrolyte comprising a plurality of microcracks; infiltrating at least some of the plurality of microcracks with a liquid precursor comprising at least one oxidizable metal ion; and exposing the ceramic electrolyte to a base having a pH value of at least about 9, so as to chemically convert the oxidizable metal ion into an oxide, thereby decreasing the porosity of the ceramic electrolyte.

Method of processing a ceramic layer and related articles

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Clifton Park, NY, United States of America

Venkat Subramaniam Venkataramani