United Technologies Corporation

Rtx Corporation

Raytheon Technologies Corporation

Otis Elevator Company

Hamilton Sundstrand Corporation

Goodrich Corporation

Ballard Power Systems Corporation

United Technologies Corporaton

James Thompson Beals

Xia Tang

Richard Wesley Jackson

Ying She

Mark R Jaworowski

Wayde R Schmidt

Paul Sheedy

Aaron T Nardi

John A Sharon

Brian T Hazel

David A Litton

Brandon W Spangler

Paul Bennett

Tahany Ibrahim El-Wardany

Dilip M Shah

Carl R Verner

Joseph Parkos, Jr

Zhongfen Ding

Tania Bhatia Kashyap

Xuan Liu

Michael J Birnkrant

Bryan P Dube

David C Jarmon

Jagadeesh Kumar Tangudu

Jean Yamanis

Kathryn S Read

Zissis A Dardas

Carey J Clum

John Joseph Marcin

Ellen Y Sun

Vijay Narayan Jagdale

Vincent C Nardone

Justin R Hawkes

Gary M Lomasney

Andrew Joseph Lazur

Richard J Ericson

Daniel A Bales

Mario P Bochiechio

Alan David Cetel

Steven A Poteet

Tobias H Sienel

Eric A Hudson

John E Holowczak

Joel H Wagner

Richard Wesley Jackson, Iii

Jacob A Snyder

Stephen Douglas Murray

Sarah Arsenault

Michael R Kracum

Mark Steven Thompson

Dat T Nguyen

Philip H McCluskey

Michael C Lang

Samuel D Draper

Jose A Lopes

Fred J Lussier

David W McKee

Keith A Santeler

Weina Li

Gajawalli V Srinivasan

Blake J Luczak

Beata I Wawrzyniak

Joshua E Persky

Mary Colby

Elisa M Zaleski

Glenn A Cotnoir

John D Wiedemer

Michael K Turkington

Anthony Cooney

John D Riehl

Sean C Emerson

Daniel V Viens

Thomas Henry Vanderspurt

Samuel C Wan

Neal Magdefrau

Olivier H Sudre

Dinesh K Gupta

William K Tredway

Rhonda R Willigan

Norman Pietruska

Sudhangshu Bose

Xiaodong Luo

May L Corn

Kenneth David Smith

Daniel F Paulonis

Yan Zhang

John J Marcin

Zhigang Wang

Louis Chiappetta, Jr

Tianli Zhu

Edward R Szela

Robert A Barth

Eric L Couch

William F Werkheiser

Jose L Santana

Robert J Braun

William J Joost

R Wesley Jackson

Lea D Kennard

Raymond Zatorski

An article according to an exemplary embodiment of this disclosure, among other possible things includes a substrate and a barrier layer on the substrate. The barrier layer includes a bond coat comprising a matrix, diffusive particles disposed in the matrix, and gettering particles disposed in the matrix. At least about 10% of the gettering particles are in a crystalline phase. The article also includes a top coat. An article is also disclosed.

Environmental barrier coating with thermal properties

An adaptive surface texturing method is provided for use with a part formed of ceramic matrix composites (CMCs) to be coated with an environmental barrier coating (EBC). The method includes coating a CMC surface of the part with an initial coating, determining a contour and an undulation pattern of the CMC surface and designing a texturing pattern to follow the contour and the undulation pattern and to be formed in the initial coating based on a thickness of the initial coating and an average particle size of a slurry of the EBC.

Adaptive surface texturing for ceramic matrix composites

Systems and methods for forming an oxidation protection system on a composite structure are provided. In various embodiments, the oxidation protection system comprises a boron-glass layer formed on the composite substrate and a silicon-glass layer formed over the boron-glass layer. Each of the boron-glass layer and the silicon-glass layer includes a glass former.

Oxidation protection with improved water resistance for composites

A coating according to an exemplary embodiment of this disclosure, among other possible things includes a bond coat including gettering particles and diffusive particles dispersed in a matrix; a top coat disposed over the bond coat, the top coat includes metal silicate particles; and an intermediate layer between the bond coat and the top coat. The intermediate layer includes hafnium silicate particles and matrix. A concentration of metal silicate in the intermediate layer is less than a concentration of metal silicate in the top coat. An article is also disclosed.

Environmental barrier coating

A method of forming a coating includes providing a mold that has a flexible wall that defines a mold cavity, inserting a component that is to be coated into the mold cavity, the component having a component surface roughness and there being a coating gap defined between the component and the flexible wall of the mold cavity, introducing a molding slurry into the mold cavity, the molding slurry filling the coating gap and contacting the component so as to overcoat the component surface roughness, solidifying the molding slurry to form a green coating on the component, and consolidating the green coating to form a final coating on the component, the final coating having a coating surface roughness that is less than the component surface roughness.

Method and system for molded coating on CMC

A method for forming a self-healing ceramic matrix composite (CMC) component includes depositing a first self-healing particulate material in a first region of a CMC preform of the CMC component and depositing a second self-healing particulate material having a different chemical composition than the first self-healing particulate material in a second region of the CMC preform distinct from the first region.

Self-healing matrix for a ceramic composite

An example article according to the present disclosure includes, among other possible things, a metallic substrate, and a bond coat on the metallic substrate. The bond coat includes a matrix phase, gettering particles in the matrix phase, wherein the gettering particles are reactive with oxidants, and a dispersion of matrix modifier particles in the matrix phase. The example article also includes a diffusion barrier between the bond coat and the metallic substrate, wherein the diffusion barrier is configured to inhibit diffusion of components from the bond coat into the metallic substrate. An example composite material and method of applying a barrier to a substrate are also disclosed.

A method for coating a ceramic matrix composite substrate with an environmental barrier coating includes the steps of: treating a surface of a ceramic matrix composite substrate to adjust wettability of the surface; and applying an aqueous slurry-based environmental barrier coating to the surface. The treating step can be a plasma treatment to remove organic contaminants, and can also be a treatment to modify oxidative state of the surface. The treatment can produce a surface for treatment that is hydrophilic and has a contact angle with aqueous-slurry coating materials of less than 40 degrees.

Surface treatment for aqueous slurry-based environmental barrier coating

A method of applying a coating to a substrate includes forming a slurry by mixing elemental precursors of gettering particles, diffusive particles, matrix material, and a carrier fluid; applying the slurry to a substrate; and sintering the slurry to form a composite material. The sintering causes the elemental precursors to react with one another to form gettering particles. An article is also disclosed.

Environmental barrier coating and method of forming the same

An article includes a ceramic-based substrate and a barrier layer on the ceramic-based substrate. The barrier layer includes a matrix phase and gettering particles in the matrix phase. The gettering particles with an aspect ratio greater than one are aligned such that a maximum dimension of the gettering particles extends along an axis that is generally parallel to the substrate. The barrier layer includes a dispersion of diffusive particles in the matrix phase. A composite material and a method of applying a barrier layer to a substrate are also disclosed.

A gas turbine engine component having a substrate; a thermal barrier coating on the substrate having a porous microstructure; and a reflective layer conforming to the porous microstructure of the thermal barrier coating, wherein the reflective layer comprises a conforming nanolaminate defined by alternating layers of platinum group metal materials selected from the group consisting of platinum group metal-based alloys, platinum group metal intermetallic compounds, mixtures of platinum group metal with metal oxides and combinations thereof. A capping layer can be added over the reflective layer. A supporting layer can be added between the reflective layer and the thermal barrier coating. A process is also disclosed.

Thermally stable thin-film reflective coating and coating process

A coated article including an article having a surface; an oxidation resistant bond coat layer deposited on the surface, the oxidation resistant bond coat layer comprising a healing silica matrix and at least one oxygen scavenger forming a metal silicide network dispersed within the healing silica matrix; and a top coat layer disposed upon the oxidation resistant bond coat layer, whereby the oxidation resistant bond coat layer is operable to seal a crack in the top coat layer.

Oxidation resistant bond coat layers, processes for coating articles, and their coated articles

An article includes a substrate and a barrier layer on the substrate. The barrier layer includes a matrix, diffusive particles dispersed in the matrix, and gettering particles dispersed in the matrix. The gettering particles include at least one alloyed metal silicide. A composite material and a method of fabricating an article are also disclosed.

An environmental barrier coating includes a barrier layer which includes a matrix, diffusive particles, and gettering particles; and a calcium-magnesia alumina-silicate (CMAS)-resistant component. The CMAS-resistant component includes hafnium silicate and a rare earth hafnate. An article and a method of fabricating an article are also disclosed.

Growing community of inventors

West Hartford, CT, United States of America

James Thompson Beals