公开(公告)号：US20180216477A1

公开(公告)日：2018-08-02

申请号：US15421882

申请日：2017-02-01

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Jacob John KITTLESON ,  James MURRAY ,  Gregory Scot CORMAN

IPC: F01D5/28 ,  B32B5/26

CPC classification number: F01D5/284 ,  B32B5/26 ,  B32B2250/02 ,  B32B2250/20 ,  B32B2260/023 ,  B32B2260/04 ,  B32B2262/105 ,  B32B2262/106 ,  B32B2603/00 ,  F05D2300/2112 ,  F05D2300/224 ,  F05D2300/2261 ,  F05D2300/6033 ,  F05D2300/6034

Abstract: A preform CMC article is disclosed comprising an interior ply structure having at least one interior CMC ply including at least one longitudinal CMC ply disposed along the article length, an exterior shell ply forming an article surface and having at least one exterior CMC ply substantially surrounding the interior ply structure, and at least one wicking portion in which the interior ply structure penetrates the exterior ply shell with an exposed edge of the longitudinal CMC ply disposed at the article surface. A CMC article is disclosed including the interior ply structure and the exterior ply shell, wherein the longitudinal CMC ply includes an exposed edge disposed at the surface of the CMC article. A method for forming the CMC article is disclosed including wicking a melt infiltration agent into the article through the wicking portion into the interior ply structure along the longitudinal CMC ply.