United Technologies Corporation

Raytheon Technologies Corporation

Rtx Corporation

Hamilton Sundstrand Corporation

Goodrich Corporation

Otis Elevator Company

Paul Sheedy

Michael G McCaffrey

Wayde R Schmidt

Neal Magdefrau

Tania Bhatia Kashyap

Xia Tang

John A Sharon

Sameh Dardona

James Thompson Beals

Daniel G Goberman

David C Jarmon

Aaron T Nardi

Marcin Piech

Richard Wesley Jackson

Slade R Culp

Daniel A Mosher

John E Holowczak

Vijay Narayan Jagdale

Michael J Birnkrant

Ying She

Tahany Ibrahim El-Wardany

Changsheng Guo

Ram Ranjan

Sean C Emerson

Daniel V Viens

Justin R Hawkes

Dustin D Caldwell

Urcan Guler

Thomas D Kasprow

William F Werkheiser

Rajiv Ranjan

Weina Li

Douglas Michael Berczik

Lesia V Protsailo

Rhonda R Willigan

Thomas M Yun

Ranadip Acharya

Xiaodong Luo

Kathryn L Kirsch

Kenneth David Smith

Shahram Amini

Sreenivasa R Voleti

John J Gangloff, Jr

Justin B Alms

Tianli Zhu

Andi M Limarga

Robert A Barth

Sonia Tulyani

Jose L Santana

Cagatay Tokgoz

R Wesley Jackson

Ray-Sing Lin

Daniel Anthony Grande

Richard J Paholsky

Jacquelynn K M Garofano

Ryan M Deacon

Mark A Hermann

John Joseph Gangloff

Jacquelynn Garofano

Alex J Sember

Virginia H Faustino

Wade R Schmidt

Jr John J Gangloff

A ceramic article includes a ceramic matrix composite that has a porous reinforcement structure and a ceramic matrix within pores of the porous reinforcement structure. The ceramic matrix composite includes a surface zone comprised of an exterior surface of the ceramic matrix composite and pores that extend from the exterior surface into the ceramic matrix composite. A glaze material seals the surface zone within the pores of the surface zone and on the exterior surface of the surface zone as an exterior glaze layer on the ceramic matrix composite. The glaze material is a glass or glass-ceramic material. The ceramic matrix composite includes an interior zone under the surface zone, and the interior zone is free of any of the glaze material and has a greater porosity than the surface zone.

Method for fabricating a ceramic material

Disclosed is a multi nanolayer interface coating for a fiber of a composite including a first interface coating nanolayer deposited onto the fiber of the ceramic matrix composite, and a second interface coating nanolayer deposited onto the first interface coating nanolayer.

Nanolaminate fiber interface coatings for composites

An article includes a ceramic-based substrate and a barrier layer on the ceramic-based substrate. The barrier layer includes a matrix of barium-magnesium alumino-silicate or SiO, a dispersion of silicon oxycarbide particles in the matrix, and a dispersion of particles, of the other of barium-magnesium alumino-silicate or SiO, in the matrix.

Silicon oxycarbide environmental barrier coating

A method of manufacturing a heat exchanger core from glass ceramic matrix composite includes placing one or more reinforcing fibers around one or more mandrels into a mold cavity. A glass matrix material infiltrates the one or more reinforcing fibers to produce an infiltrated core and the one or more mandrels is removed to create one or more passages passing through the infiltrated core.

Surface texture enhanced glass-ceramic matrix composite heat exchanger

A method of producing a ceramic matrix composite material component is provided. The method includes that steps of: a) producing a preform having one or more ceramic constituents, the preform being porous with internal voids; and b) applying at least one layer of a first material to the preform using an atomic layer deposition (ALD) process to decrease a porosity of the preform.

Method for producing a ceramic matrix composite component

A method of manufacturing a CMC structure includes infiltrating a porous substrate with a composite material and performing a first densification on the infiltrated porous substrate, forming a first densified porous substrate, wherein the first densification includes techniques selected from the group of techniques comprising photonic curing, photonic sintering, pulsed thermal heating, or combinations thereof.

Rapid processing of laminar composite components

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

A fabrication apparatus for fabricating ceramic structures of controlled size and composition is provided. The fabrication apparatus includes an additive manufacturing machine configured to dispense preceramic materials in a printed pattern, the printed pattern corresponding to the ceramic structures of the controlled size and composition, a radiation emitter configured to emit curing radiation toward the printed pattern to cure the preceramic materials and a lamp element configured to shine light on the preceramic materials to convert the preceramic materials to ceramics.

Fabricating ceramic structures

An article includes a silicon oxycarbide-based layer that has Si, O, and C in a covalently bonded network. The silicon oxycarbide-based layer has first and second opposed surfaces. A calcium-magnesium alumino-silicate-based layer is interfaced with the first surface of the silicon oxycarbide-based layer.

Silicon oxycarbide-based environmental barrier coating

Disclosed is a method of making high temperature fiber including incorporating an inorganic atom into a polymer precursor fiber to form a modified polymer precursor fiber and converting the modified polymer precursor fiber to a high temperature fiber having a bonded inorganic atom.

High temperature fiber and method of making

A solid oxide fuel cell or solid oxide electrolyzer includes a plurality of fuel cell layers stacked along a stacking axis. Each fuel cell layer including a stacked arrangement of elements including a cathode, an anode, an electrolyte located between the anode and the cathode, a support layer positioned at the anode opposite the electrolyte, and a separator plate located at the support layer opposite the anode. The separator plate is configured to contact the cathode of an adjacent fuel cell layer of the plurality of fuel cell layers. The separator plate defines a plurality of anode flow channels configured to deliver a fuel therethrough and a plurality of cathode flow channels configured to deliver an air flow therethrough. The separator plate is formed from a bulk metallic glass material.

Bulk metallic glass interconnect for high power density fuel cell

A brake component is disclosed. In various embodiments, the brake component includes a ceramic matrix composite (CMC) structure including a plurality of nominally dense plies, interleaved with a plurality of interlayers, wherein the plurality of nominally dense plies and the plurality of interlayers are bonded by at least one of a Field Assisted Sintering Technique (FAST), a Spark Plasma Sintering (SPS) process, or a localized heating process. In various embodiments, the brake component is a rotor disk or a stator disk.

Compliant interlayer

Disclosed is a method of making high temperature fiber including chemically bonding high temperature material to a fiber template at a first temperature to form a precursor fiber and processing the precursor fiber at a second temperature to form the high temperature fiber. The first temperature does not equal the second temperature. Also disclosed are high temperature fibers made by the method.

High temperature fiber, method of making and high temperature fiber composites

A method of forming a part includes forming a glass-ceramic matrix composite material to form a pre-consolidated feedstock sheet with a pre-determined shape. The pre-consolidated feedstock sheet is sectioned into a first piece of pre-consolidated feedstock sheet and a second piece of pre-consolidated feedstock sheet. The first piece of pre-consolidated feedstock sheet and a second piece of pre-consolidated feedstock sheet are assembled with a second piece of pre-consolidated feedstock sheet to form a composite layup. The first piece of pre-consolidated feedstock sheet and the second piece of pre-consolidated feedstock sheet are joined by compressing the composite layup to form a glass-ceramic matrix composite part.

Glass-ceramic matrix composite feedstock and forming

Disclosed is a modified preceramic polymer having a polymer backbone consisting of silicon or a combination of silicon and carbon; and a pendant modifier bonded to the backbone wherein the modifier includes silicon, boron, aluminum, a transition metal, a refractory metal, or a combination thereof. The modified preceramic polymer can be used to form a ceramic matrix composite.

Modified preceramic polymers, method of making and ceramic matrix composite formed therefrom

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Bolton, CT, United States of America

Paul Sheedy