公开(公告)号：EP3689840A1

公开(公告)日：2020-08-05

申请号：EP20165178.3

申请日：2016-02-16

申请人： General Electric Company

发明人： LUTHRA, Krishan Lal ,  CORMAN, Gregory Scott ,  RAMAMURTHI, Badri Narayan

IPC分类号： C04B35/573 ,  C04B35/80

摘要： A ceramic matrix composite article (10) includes a melt infiltration ceramic matrix composite substrate (20) 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 (50) 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：EP3046894A1

公开(公告)日：2016-07-27

申请号：EP14766588.9

申请日：2014-08-28

申请人： General Electric Company

发明人： LUTHRA, Krishan Lai ,  CORMAN, Gregory Scot ,  RAMAMURTHI, Badri Narayan

IPC分类号： C04B35/80 ,  C04B35/00 ,  C04B38/00 ,  C04B41/45

CPC分类号： C04B35/806 ,  C04B35/565 ,  C04B35/58092 ,  C04B35/584 ,  C04B35/80 ,  C04B2235/3804 ,  C04B2235/3813 ,  C04B2235/3817 ,  C04B2235/3839 ,  C04B2235/3843 ,  C04B2235/483 ,  C04B2235/5244 ,  C04B2235/5248 ,  C04B2235/5252 ,  C04B2235/5256 ,  C04B2235/614 ,  C04B2235/94

摘要： The present disclosure relates to ceramic matrix composites made by chemical vapor infiltration, methods of making the ceramic matrix composites, and ceramic matrix composite turbine components for use in a hot gas pathway. A method of fabricating a ceramic matrix composite is provided that can include the steps of: (i) forming a plurality of holes in a ceramic matrix composite preform of desired shape; and (ii) densifying the preform by a chemical vapor infiltration process to form a part or most of the matrix. A ceramic matrix composite is also provided that can be used in hot combustion gases made according to the aforementioned ceramic matrix composite fabrication method described herein.

公开(公告)号：EP3061736B1

公开(公告)日：2020-08-05

申请号：EP16155969.5

申请日：2016-02-16

申请人： General Electric Company

发明人： LUTHRA, Krishan Lal ,  CORMAN, Gregory Scott ,  RAMAMURTHI, Badri Narayan

IPC分类号： C04B35/573 ,  C04B35/80

公开(公告)号：EP3061603A1

公开(公告)日：2016-08-31

申请号：EP16156524.7

申请日：2016-02-19

申请人： General Electric Company

发明人： WEAVER, Jared Hogg ,  RAMAMURTHI, Badri Narayan

IPC分类号： B32B18/00 ,  C04B37/00 ,  C04B35/14 ,  C04B35/56 ,  C04B35/563 ,  C04B35/565 ,  C04B35/58 ,  C04B35/583 ,  C04B35/584 ,  C04B35/628 ,  C04B35/80 ,  F01D5/28 ,  F01D9/02 ,  F01D9/04 ,  F01D11/08 ,  F01D25/16 ,  F01D25/24 ,  F02K1/82 ,  F02K9/97 ,  F23R3/00

CPC分类号： C04B41/4531 ,  B32B3/263 ,  B32B7/02 ,  B32B18/00 ,  B32B2603/00 ,  C04B35/14 ,  C04B35/56 ,  C04B35/563 ,  C04B35/565 ,  C04B35/58 ,  C04B35/58092 ,  C04B35/583 ,  C04B35/584 ,  C04B35/62844 ,  C04B35/803 ,  C04B35/806 ,  C04B37/008 ,  C04B41/4584 ,  C04B41/5027 ,  C04B41/5035 ,  C04B41/5058 ,  C04B41/5059 ,  C04B41/5064 ,  C04B41/5066 ,  C04B41/5071 ,  C04B41/87 ,  C04B2235/5244 ,  C04B2235/5252 ,  C04B2235/5256 ,  C04B2235/5268 ,  C04B2235/602 ,  C04B2235/608 ,  C04B2235/614 ,  C04B2235/77 ,  C04B2235/775 ,  C04B2237/38 ,  F01D5/282 ,  F01D5/284 ,  F01D9/023 ,  F01D9/041 ,  F01D11/08 ,  F01D25/162 ,  F01D25/24 ,  F02K1/82 ,  F02K9/97 ,  F05D2240/11 ,  F05D2300/6033

摘要： A preform can be subject 10 to chemical vapor infiltration (CVI) to define a ceramic matrix composite (CMC) structure 203, a supplemental preform 302 can be added 20 to the CMC structure to define an expanded structure 402 and CVI can be performed 40 using the expanded structure. The adding of a supplemental preform and performing CVI using the expanded structure can be repeated.

摘要翻译： 预成型件可以经受化学气相渗透（CVI）10以限定陶瓷基质复合材料（CMC）结构203，可将补充预成型件302加入到CMC结构中以限定扩展结构402，并使用 扩展结构。 可以重复使用扩展结构添加补充预制件和执行CVI。

公开(公告)号：EP3061736A1

公开(公告)日：2016-08-31

申请号：EP16155969.5

申请日：2016-02-16

申请人： General Electric Company

发明人： LUTHRA, Krishan Lal ,  CORMAN, Gregory Scott ,  RAMAMURTHI, Badri Narayan

IPC分类号： C04B35/573 ,  C04B35/80

摘要： A ceramic matrix composite article (10) includes a melt infiltration ceramic matrix composite substrate (20) 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 (50) 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.

摘要翻译： 陶瓷基体复合制品（10）包括熔体渗透陶瓷基体复合材料基体（20）和化学气相渗透陶瓷基体复合材料外层（50），所述陶瓷基体复合材料基体（20）包括陶瓷纤维增强材料，所述陶瓷纤维增强材料在具有游离硅比例的陶瓷基体材料中， 在陶瓷基体材料中的陶瓷纤维增强材料，其基本不具有设置在基板的至少一部分的外表面上的游离硅比例。