公开(公告)号：US11072565B2

公开(公告)日：2021-07-27

申请号：US14633422

申请日：2015-02-27

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Jared Hogg Weaver ,  Gregory Scot Corman ,  Krishan Lal Luthra

IPC: C04B37/00 ,  C04B35/628 ,  C04B35/80 ,  C04B35/71 ,  C23C16/04

Abstract: According to a method set forth herein a plurality of preform plies having first and second preform plies can be associated together to define a preform. The preform can be subject to chemical vapor infiltration (CVI) processing to define a ceramic matrix composite (CMC) structure.

公开(公告)号：US09850174B2

公开(公告)日：2017-12-26

申请号：US15078124

申请日：2016-03-23

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Gregory Scot Corman ,  Jared Hogg Weaver ,  Krishan Lal Luthra

IPC: C04B35/573 ,  C04B35/76 ,  C04B38/06 ,  F01D5/28 ,  F01D9/02

CPC classification number: C04B35/76 ,  C04B35/6267 ,  C04B35/80 ,  C04B35/806 ,  C04B38/06 ,  C04B2235/3826 ,  C04B2235/5244 ,  C04B2235/5268 ,  C04B2235/5481 ,  C04B2235/614 ,  C04B2235/616 ,  F01D5/282 ,  F01D9/02 ,  F05D2220/30 ,  F05D2230/314 ,  F05D2300/6033 ,  F05D2300/614

Abstract: Ceramic matrix composite articles include, for example, a plurality of unidirectional arrays of fiber tows in a matrix having a monomodal pore size distribution, and a fiber volume fraction between about 15 percent and about 35 percent. The articles may be formed by, for example, providing a shaped preform comprising a prepreg tape layup of unidirectional arrays of fiber tows, a matrix precursor, and a pore former, curing the shaped preform to pyrolyze the matrix precursor and burnout the pore former so that the shaped preform comprises the unidirectional arrays of fiber tows and a porous matrix having a monomodal pore size distribution, and subjecting the cured shaped preform to chemical vapor infiltration to densify the porous matrix so that the ceramic matrix composite article has a fiber volume fraction between about 15 percent and about 35 percent.

公开(公告)号：US12017962B2

公开(公告)日：2024-06-25

申请号：US16807864

申请日：2020-03-03

Applicant: General Electric Company

Inventor： Daniel Gene Dunn ,  Gregory Scot Corman ,  Jared Hogg Weaver

IPC: F01D5/28 ,  B32B18/00 ,  C04B35/573 ,  C04B35/63 ,  C04B35/80 ,  C04B37/00 ,  C23C16/32 ,  F01D5/00 ,  F01D9/04 ,  F01D25/16 ,  F02K1/82 ,  F02K9/97 ,  F23R3/00

CPC classification number: C04B37/005 ,  B32B18/00 ,  C04B35/573 ,  C04B35/6316 ,  C04B35/80 ,  C04B37/001 ,  C23C16/325 ,  F01D5/005 ,  F01D5/282 ,  F01D5/284 ,  F01D5/288 ,  F01D9/041 ,  F01D25/162 ,  F02K1/82 ,  F02K9/97 ,  F23R3/007 ,  C04B2235/428 ,  C04B2235/5244 ,  C04B2235/616 ,  C04B2237/083 ,  C04B2237/365 ,  C04B2237/38 ,  F05D2220/32 ,  F05D2230/80 ,  F05D2240/11 ,  F05D2300/2261 ,  F05D2300/6033

Abstract: Provided is a method including obtaining ceramic matrix composite (CMC) with a first matrix portion including a silicon carbide and silicon phase dispersed therewithin, disposing a coating thereupon to form a sealed part, and forming thereupon another segment comprising a CMC, which may be another matrix portion including a silicon carbide and a silicon phase dispersed within therewithin. Also provided is a gas turbine component with a CMC segment including a matrix portion including a silicon carbide and a silicon phase dispersed therewithin, a sealing layer including silicon carbide enclosing the first segment, and a second segment on the sealing layer, wherein the second segment includes a melt-infiltrated CMC having a matrix portion including a silicon carbide and a silicon phase dispersed therewithin.

公开(公告)号：US20210238101A1

公开(公告)日：2021-08-05

申请号：US17234176

申请日：2021-04-19

Applicant: General Electric Company

Inventor： Jared Hogg Weaver ,  Gregory Scot Corman ,  Krishan Lal Luthra

IPC: C04B37/00 ,  C04B35/628 ,  C04B35/80 ,  C04B35/71 ,  C23C16/04

Abstract: According to a method set forth herein a plurality of preform plies having first and second preform plies can be associated together to define a preform. The preform can be subject to chemical vapor infiltration (CVI) processing to define a ceramic matrix composite (CMC) structure.

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：US20190023618A1

公开(公告)日：2019-01-24

申请号：US16140906

申请日：2018-09-25

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Gregory Scot Corman

IPC: C04B35/80 ,  C04B35/653 ,  C04B35/65 ,  C04B35/628 ,  C04B35/58 ,  C04B35/565 ,  C04B35/563 ,  C23C16/04

Abstract: A method for making a composite material includes disposing a quantity of liquid comprising at least 90 weight percent molten boron within pores of a porous preform, the preform comprising a preform material; and reacting at least a portion of the molten boron with a portion of the preform material to form a solid ceramic reaction product, thereby forming a ceramic matrix composite material. An article comprises a composite material; the composite material comprises a fibrous phase disposed within a matrix. The matrix comprises silicon carbide, boron carbide, and boron silicide.

公开(公告)号：US10597335B2

公开(公告)日：2020-03-24

申请号：US15228693

申请日：2016-08-04

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Daniel Gene Dunn ,  Gregory Scot Corman ,  Jared Hogg Weaver

IPC: C23C16/32 ,  C04B37/00 ,  F01D5/28 ,  F02K9/97 ,  C04B35/573 ,  F01D9/04 ,  C04B35/80 ,  F02K1/82 ,  F01D25/16 ,  C04B35/63 ,  B32B18/00 ,  F01D5/00 ,  F23R3/00

Abstract: Provided is a method including obtaining ceramic matrix composite (CMC) with a first matrix portion including a silicon carbide and silicon phase dispersed therewithin, disposing a coating thereupon to form a sealed part, and forming thereupon another segment comprising a CMC, which may be another matrix portion including a silicon carbide and a silicon phase dispersed within therewithin. Also provided is a gas turbine component with a CMC segment including a matrix portion including a silicon carbide and a silicon phase dispersed therewithin, a sealing layer including silicon carbide enclosing the first segment, and a second segment on the sealing layer, wherein the second segment includes a melt-infiltrated CMC having a matrix portion including a silicon carbide and a silicon phase dispersed therewithin.

公开(公告)号：US20190023617A1

公开(公告)日：2019-01-24

申请号：US16138725

申请日：2018-09-21

Applicant: General Electric Company

Inventor： Krishan Lal Luthra ,  Gregory Scot Corman ,  Badri Narayan Ramamurthi

IPC: C04B35/80 ,  C04B35/573 ,  B05D3/10 ,  B32B5/18 ,  C23C16/04 ,  C23C16/02 ,  B32B5/02 ,  B32B7/02

Abstract: A ceramic matrix composite article includes a melt infiltration ceramic matrix composite substrate comprising a ceramic fiber reinforcement material in a ceramic matrix material having a free silicon proportion, and a chemical vapor infiltration ceramic matrix composite outer layer comprising a ceramic fiber reinforcement material in a ceramic matrix material having essentially no free silicon proportion disposed on an outer surface of at least a portion of the substrate.

公开(公告)号：US10052789B2

公开(公告)日：2018-08-21

申请号：US14951737

申请日：2015-11-25

Applicant: GENERAL ELECTRIC COMPANY

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

IPC: C04B41/85 ,  C23C16/34 ,  B28B1/14 ,  C23C16/26 ,  C04B35/80

CPC classification number: B28B1/14 ,  C04B35/80 ,  C04B35/806 ,  C04B41/85 ,  C04B2235/3826 ,  C04B2235/6028 ,  C04B2235/614 ,  C04B2235/616 ,  C23C16/26 ,  C23C16/342 ,  C23C16/345

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 at least one of depositing a coating on the ceramic fibers of the at least one frame via a chemical vapor deposition (CVD) process and impregnating the ceramic fibers with a slurry including a ceramic matrix precursor composition to form at least one CMC prepreg. In some embodiments, the ceramic fibers of the planar array may include a coating, and the method may include impregnating the coated ceramic fibers with a slurry including a ceramic matrix precursor composition to form at least one CMC prepreg.

公开(公告)号：US10030305B2

公开(公告)日：2018-07-24

申请号：US14945824

申请日：2015-11-19

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Jared Hogg Weaver ,  Gregory Scot Corman ,  Anteneh Kebbede ,  Daniel Gene Dunn ,  Jerome Geoffrey Magnant

IPC: B44C1/22 ,  C03C15/00 ,  C03C25/68 ,  C23F1/00 ,  C23C16/04

Abstract: A method can include applying a mask to a CMC structure, and subjecting the structure having an applied mask to a process for repair. In one embodiment, the applying a mask to a CMC structure can include applying a mask to a feature of a CMC structure.