公开(公告)号：US20150115489A1

公开(公告)日：2015-04-30

申请号：US14067322

申请日：2013-10-30

Applicant: General Electric Company

Inventor： Gregory Scot CORMAN

IPC: B29C73/00 ,  B29C73/16

CPC classification number: B29C73/00 ,  B23P6/002 ,  B23P6/04 ,  B23P6/045 ,  B29C73/02 ,  B29C73/16 ,  C04B41/009 ,  C04B41/5096 ,  C04B41/85 ,  F01D5/005 ,  C04B35/565 ,  C04B35/806 ,  C04B41/4515 ,  C04B41/4523 ,  C04B41/5094

Abstract: A method of repairing matrix microcracks in MI-CMC components includes heating “free” silicon phase present within the cracked matrix portion of the component to a temperature above the melting point of the silicon phase. During heating of the component an additional source of silicon phase is supplied to the component. The atmosphere about the component is controlled during the heating of the component. The MI-CMC component is cooled below the melting point of the silicon phase to cool and solidify the silicon phase that has migrated into the microcracks to thereby bond the crack faces together.

Abstract translation: 在MI-CMC组分中修复基质微裂纹的方法包括将组分的裂纹基体部分内存在的“游离”硅相加热到高于硅相熔点的温度。 在加热部件期间，向该部件提供附加的硅相源。 在组件的加热期间控制关于部件的气氛。 将MI-CMC组分冷却到低于硅相的熔点，以冷却和固化已经迁移到微裂纹中的硅相，从而将裂纹面粘合在一起。

公开(公告)号：US20170275210A1

公开(公告)日：2017-09-28

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

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：US20170145560A1

公开(公告)日：2017-05-25

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: C23C16/04

CPC classification number: C23C16/045 ,  C04B41/009 ,  C04B41/52 ,  C04B41/85 ,  F01D5/005 ,  F01D5/282 ,  F01D5/284 ,  F05D2300/6033 ,  C04B35/80 ,  C04B41/4592 ,  C04B41/5027 ,  C04B41/5062 ,  C04B41/522 ,  C04B41/4523 ,  C04B41/4572 ,  C04B41/4531

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.

公开(公告)号：US20170144925A1

公开(公告)日：2017-05-25

申请号：US14951650

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: C03C17/00

CPC classification number: C03C17/001 ,  C04B35/80 ,  C04B35/806 ,  C04B2235/3826 ,  C04B2235/6028 ,  C04B2235/614 ,  C04B2235/616

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：US20170015595A1

公开(公告)日：2017-01-19

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 ,  C04B35/71 ,  C23C16/04

CPC classification number: C04B37/001 ,  C04B35/62884 ,  C04B35/71 ,  C04B35/80 ,  C04B2235/5208 ,  C04B2235/5252 ,  C04B2235/614 ,  C04B2235/77 ,  C04B2235/775 ,  C04B2237/38 ,  C04B2237/586 ,  C23C16/045

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.

Abstract translation: 根据本文提出的方法，具有第一和第二预制件层的多个预成型坯层可以联接在一起以限定预成型件。 预成型件可以进行化学气相渗透（CVI）处理以限定陶瓷基体复合（CMC）结构。

公开(公告)号：US20160009602A1

公开(公告)日：2016-01-14

申请号：US13790388

申请日：2013-03-08

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Milivoj Konstantin BRUN ,  Gregory Scot CORMAN

IPC: C04B35/80 ,  B32B37/06

CPC classification number: C04B35/806 ,  B32B18/00 ,  B32B37/06 ,  B32B2305/076 ,  B32B2309/02 ,  B32B2309/12 ,  B32B2315/02 ,  C04B35/573 ,  C04B35/62863 ,  C04B35/62868 ,  C04B35/62871 ,  C04B35/62873 ,  C04B35/62884 ,  C04B35/62894 ,  C04B35/76 ,  C04B2235/3826 ,  C04B2235/424 ,  C04B2235/48 ,  C04B2235/522 ,  C04B2235/524 ,  C04B2235/5244 ,  C04B2235/5248 ,  C04B2235/5256 ,  C04B2235/526 ,  C04B2235/5264 ,  C04B2235/5272 ,  C04B2235/5296 ,  C04B2235/614 ,  C04B2235/6581 ,  C04B2235/75 ,  C04B2237/365 ,  C04B2237/38 ,  C04B2237/584 ,  C04B2237/61 ,  C04B2237/66

Abstract: The disclosure relates generally to a method for reducing the thermal expansion/shrinkage behavior between fiber reinforced plies and monolithic matrix plies, and reducing the macroscopic defects that occur during process of making a ceramic matrix composite article.

Abstract translation: 本公开总体上涉及一种降低纤维增强层和整体矩阵层之间的热膨胀/收缩行为的方法，并且减少在制备陶瓷基复合制品的过程中发生的宏观缺陷。