公开(公告)号：US20200072078A1

公开(公告)日：2020-03-05

申请号：US16119142

申请日：2018-08-31

Applicant: General Electric Company

Inventor： Douglas Glenn Decesare ,  Daniel Gene Dunn

IPC: F01D25/00 ,  F01D5/28

Abstract: A ceramic matrix composite (CMC) component including a plurality of layers of a CMC and a directionally controllable CMC insert. The directionally controllable CMC insert is disposed in the plurality of layers of a ceramic matrix composite. The directionally controllable CMC insert includes an optimized architecture to strengthen a high stress region of the CMC component. The directionally controllable CMC insert is geometrically configured and disposed within the plurality of layers of the CMC to redirect a crack in the CMC component toward a region of low crack growth driving force. A turbomachine and method of forming a turbomachine member including a plurality of layers of a CMC and having the directionally controllable CMC insert disposed in a shaped void are additionally disclosed.

公开(公告)号：US10370292B2

公开(公告)日：2019-08-06

申请号：US15725889

申请日：2017-10-05

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Daniel Gene Dunn ,  James Anthony Ruud ,  Pierre-Andre Bui ,  Gregory Scot Corman ,  James Scott Vartuli

IPC: C03C17/00 ,  C04B35/80

Abstract: The present application provides methods and apparatus for processing ceramic fibers for the manufacture of ceramic matrix composites (CMCs). One method may include providing at least one frame including a planar array of unidirectional ceramic fibers extending across a void thereof. The method may further include depositing a coating on the ceramic fibers of the at least one frame via a chemical vapor deposition (CVD) process. The method may also include impregnating the coated ceramic fibers with a slurry including a ceramic matrix precursor composition to form at least one CMC prepreg, such as a prepreg tape. The ceramic fibers may be substantially SiC fibers, for example.

公开(公告)号：US10363584B2

公开(公告)日：2019-07-30

申请号：US14014462

申请日：2013-08-30

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Jared Weaver ,  Daniel Gene Dunn

IPC: B08B3/08 ,  C04B41/53 ,  F01D5/00 ,  C04B41/91 ,  C04B41/00 ,  F01D5/28

Abstract: The disclosure relates generally to methods for removing coatings and bond coats of ceramic matrix composites. More specifically, the disclosure relates to, for example, methods of removing a bond coat from a ceramic matrix composite by contacting a ceramic matrix composite with at least one hydroxide at particular temperatures and removing the bond coat from said ceramic matrix composite.

公开(公告)号：US20240279128A1

公开(公告)日：2024-08-22

申请号：US18170059

申请日：2023-02-16

Applicant: General Electric Company

Inventor： Joseph John Shiang ,  Jared Hogg Weaver ,  Jerome Geoffrey Magnant ,  Daniel Gene Dunn

IPC: C04B41/00 ,  C04B41/50 ,  C04B41/52 ,  C04B41/89

CPC classification number: C04B41/009 ,  C04B41/0072 ,  C04B41/5024 ,  C04B41/52 ,  C04B41/89 ,  C04B2111/00224 ,  C04B2111/1087

Abstract: Methods for joining a first ceramic component to a second ceramic component to form a unitary ceramic component are provided. The method includes positioning a bonding sheet between a first ceramic component and a second ceramic component. The bonding sheet defines a plurality of voids. The method also includes densifying the bonding sheet with an infiltrate composition at a densification temperature to form a bonding interface comprising a ceramic material that forms a bonding interface between the first ceramic component to the second ceramic component into a unitary ceramic component.

公开(公告)号：US11890836B2

公开(公告)日：2024-02-06

申请号：US17851241

申请日：2022-06-28

Applicant: General Electric Company

Inventor： Matthew Hockemeyer ,  Jason David Shapiro ,  K. M. K. Genghis Khan ,  James Scott Vartuli ,  Daniel Gene Dunn ,  Shatil Sinha ,  Douglas Decesare ,  Suresh Subramanian

IPC: C04B35/80 ,  B32B18/00 ,  C04B37/00 ,  C04B35/571 ,  B28B1/52 ,  B28B11/08 ,  C04B35/565 ,  C04B35/626 ,  C04B35/628 ,  F01D5/00 ,  F01D5/28 ,  F01D9/02 ,  F23R3/00

CPC classification number: B32B18/00 ,  B28B1/522 ,  B28B11/08 ,  C04B35/565 ,  C04B35/571 ,  C04B35/6267 ,  C04B35/62884 ,  C04B35/80 ,  C04B37/001 ,  F01D5/005 ,  F01D5/282 ,  F01D9/02 ,  F23R3/007 ,  B32B2262/105 ,  C04B2235/3826 ,  C04B2235/5244 ,  C04B2235/614 ,  C04B2235/9607 ,  C04B2237/38 ,  C04B2237/584 ,  F05D2220/32 ,  F05D2230/31 ,  F05D2300/6033

Abstract: Ceramic matrix composite articles include, for example a first plurality of plies of ceramic fibers in a ceramic matrix defining a first extent, and a local at least one second ply in said ceramic matrix defining a second extent on and/or in said first plurality of plies with the second extent being less than said first extent. The first plurality of plies has a first property, the at least one second ply has at least one second property, and said first property being different from said at least one second property. The different properties may include one or more different mechanical (stress/strain) properties, one or more different thermal conductivity properties, one or more different electrical conductivity properties, one or more different other properties, and combinations thereof.

公开(公告)号：US20220324206A1

公开(公告)日：2022-10-13

申请号：US17851241

申请日：2022-06-28

Applicant: General Electric Company

Inventor： Matthew Hockemeyer ,  Jason David Shapiro ,  K.M.K. Genghis Khan ,  James Scott Vartuli ,  Daniel Gene Dunn ,  Shatil Sinha ,  Douglas Decesare ,  Suresh Subramanian

IPC: B32B18/00 ,  C04B37/00 ,  C04B35/80 ,  C04B35/571 ,  B28B1/52 ,  B28B11/08 ,  C04B35/565 ,  C04B35/626 ,  C04B35/628 ,  F01D5/00 ,  F01D5/28 ,  F01D9/02 ,  F23R3/00

Abstract: Ceramic matrix composite articles include, for example a first plurality of plies of ceramic fibers in a ceramic matrix defining a first extent, and a local at least one second ply in said ceramic matrix defining a second extent on and/or in said first plurality of plies with the second extent being less than said first extent. The first plurality of plies has a first property, the at least one second ply has at least one second property, and said first property being different from said at least one second property. The different properties may include one or more different mechanical (stress/strain) properties, one or more different thermal conductivity properties, one or more different electrical conductivity properties, one or more different other properties, and combinations thereof.

公开(公告)号：US11459908B2

公开(公告)日：2022-10-04

申请号：US16119142

申请日：2018-08-31

Applicant: General Electric Company

Inventor： Douglas Glenn Decesare ,  Daniel Gene Dunn

IPC: F01D25/00 ,  F01D5/28

Abstract: A ceramic matrix composite (CMC) component including a plurality of layers of a CMC and a directionally controllable CMC insert. The directionally controllable CMC insert is disposed in the plurality of layers of a ceramic matrix composite. The directionally controllable CMC insert includes an optimized architecture to strengthen a high stress region of the CMC component. The directionally controllable CMC insert is geometrically configured and disposed within the plurality of layers of the CMC to redirect a crack in the CMC component toward a region of low crack growth driving force. A turbomachine and method of forming a turbomachine member including a plurality of layers of a CMC and having the directionally controllable CMC insert disposed in a shaped void are additionally disclosed.

公开(公告)号：US11383494B2

公开(公告)日：2022-07-12

申请号：US15200881

申请日：2016-07-01

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Matthew Hockemeyer ,  Jason David Shapiro ,  K.M.K. Genghis Khan ,  James Scott Vartuli ,  Daniel Gene Dunn ,  Shatil Sinha ,  Douglas Decesare ,  Suresh Subramanian

IPC: B32B18/00 ,  C04B37/00 ,  C04B35/80 ,  C04B35/571 ,  C04B35/565 ,  C04B35/626 ,  C04B35/628 ,  F01D5/00 ,  F01D5/28 ,  F01D9/02 ,  F23R3/00 ,  B28B1/52 ,  B28B11/08

Abstract: Ceramic matrix composite articles include, for example a first plurality of plies of ceramic fibers in a ceramic matrix defining a first extent, and a local at least one second ply in said ceramic matrix defining a second extent on and/or in said first plurality of plies with the second extent being less than said first extent. The first plurality of plies has a first property, the at least one second ply has at least one second property, and said first property being different from said at least one second property. The different properties may include one or more different mechanical (stress/strain) properties, one or more different thermal conductivity properties, one or more different electrical conductivity properties, one or more different other properties, and combinations thereof.

公开(公告)号：US20210189889A1

公开(公告)日：2021-06-24

申请号：US16722949

申请日：2019-12-20

Applicant: General Electric Company

Inventor： Douglas Glenn Decesare ,  Daniel Gene Dunn ,  Thomas Earl Dyson

IPC: F01D5/28 ,  C04B35/80

Abstract: A method of producing a ceramic matrix composite component. The method includes positioning a first plurality of ceramic matrix composite plies on top of one another, disposing a filler pack on the first plurality of ceramic matrix composite plies, and positioning a second plurality of ceramic matrix composite plies on top of the filler pack. One of the first plurality of ceramic composite plies or the second plurality of ceramic composite plies includes a bend angle, to define an interstice between the plurality of ceramic matrix composite plies with the filler pack disposed in the interstice. The filler pack includes one or more sacrificial fibers disposed therein, that subsequent to removal provide a functional feature, such as a cooling manifold in the filler pack. The method further includes forming one or more channels coupled to the one or more functional features for the flow of a cooling fluid therethrough. A ceramic matrix composite is also disclosed.

公开(公告)号：US10995039B1

公开(公告)日：2021-05-04

申请号：US16722896

申请日：2019-12-20

Applicant: General Electric Company

Inventor： Daniel Gene Dunn ,  Henry Charles McGuigan

IPC: C04B35/80 ,  C04B35/565 ,  C04B35/653 ,  C04B35/628

Abstract: Methods for preparing ceramic matrix composites using melt infiltration are provided as well as the resulting ceramic matrix composites. The methods and products include the incorporation of a non-wetting coating to one or more sacrificial fibers. The one or more sacrificial fibers are removed, such as decomposed during pyrolysis, resulting in the formation of a plurality of functional features, in the form of regular and elongate channels along the ceramic matrix composite. During the removing of the one or more sacrificial fibers, the non-wetting coating remains on an interior surface of the plurality of functional features to block infiltration of an infiltrant to the plurality of functional features and deposition thereon. Alternatively, the sacrificial fibers may be removed subsequent to melt infiltration.