公开(公告)号：US20170276000A1

公开(公告)日：2017-09-28

申请号：US15079346

申请日：2016-03-24

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Zachary John SNIDER ,  John McConnell DELVAUX ,  Glenn Curtis TAXACHER

IPC: F01D9/02 ,  F01D11/00

CPC classification number: F01D9/02 ,  F01D11/005 ,  F01D11/10 ,  F01D25/246 ,  F05D2230/60 ,  F05D2240/11 ,  F05D2240/128 ,  F05D2240/30 ,  F05D2240/55 ,  F05D2300/6033 ,  F05D2300/614

Abstract: An apparatus is disclosed including a first article, a second article, and a third article disposed adjacent to one another, with the first article and the second article disposed between the third article and a gas path. The first article includes at least one first ceramic matrix composite ply defining a first cooperating feature. The second article includes at least one second ceramic matrix composite ply defining a second cooperating feature. The first cooperating feature and the second cooperating feature define a restricted flow path from the gas path to the third article, which includes a reduced volumetric flow rate of a gas from the gas path to the third article relative to a non-restricted flow path of a non-cooperating interface. A method for forming the apparatus includes forming and aligning the first cooperating feature and the second cooperating feature.

公开(公告)号：US20180194688A1

公开(公告)日：2018-07-12

申请号：US15401575

申请日：2017-01-09

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Matthew Troy HAFNER ,  John McConnell DELVAUX ,  Glenn Curtis TAXACHER ,  Zachary John SNIDER

IPC: C04B35/80 ,  B32B18/00 ,  C04B37/00 ,  F01D25/00

CPC classification number: C04B35/806 ,  B32B18/00 ,  C04B35/573 ,  C04B37/005 ,  C04B2235/3826 ,  C04B2235/5224 ,  C04B2235/5228 ,  C04B2235/5236 ,  C04B2235/5244 ,  C04B2235/5248 ,  C04B2237/083 ,  C04B2237/365 ,  C04B2237/38 ,  C04B2237/61 ,  C04B2237/704 ,  F01D5/282 ,  F01D9/02 ,  F01D25/005 ,  F05D2300/6033

Abstract: A CMC ply assembly is disclosed including at least one matrix ply interspersed amongst a plurality of CMC plies. Each of the plurality of CMC plies includes a first matrix and a plurality of ceramic fibers. The at least one matrix ply includes a second matrix and is essentially free of ceramic fibers. The plurality of CMC plies and the at least one matrix ply are arranged in an undensified ply stack having an article conformation. A CMC article is disclosed including a plurality of densified CMC plies and at least one densified matrix ply interspersed amongst the plurality of densified CMC plies. A method for forming the CMC article is disclosed including forming, carburizing, infusing a melt infiltration agent into, and densifying the CMC ply assembly. The melt infiltration agent infuses more completely through the at least one matrix ply than through the plurality of CMC plies.