Invention Grant
- Patent Title: CMC blade track with integral abradable
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Application No.: US15935721Application Date: 2018-03-26
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Publication No.: US11261750B2Publication Date: 2022-03-01
- Inventor: Sean Landwehr , Ted Freeman , Aaron Sippel
- Applicant: Rolls-Royce North American Technologies Inc. , Rolls-Royce Corporation
- Applicant Address: US IN Indianapolis; US IN Indianapolis
- Assignee: Rolls-Royce North American Technologies Inc.,Rolls-Royce Corporation
- Current Assignee: Rolls-Royce North American Technologies Inc.,Rolls-Royce Corporation
- Current Assignee Address: US IN Indianapolis; US IN Indianapolis
- Agency: Crowell & Moring LLP
- Main IPC: C04B35/622
- IPC: C04B35/622 ; F01D11/12 ; B32B18/00 ; C04B41/45 ; C04B35/117 ; C04B35/18 ; C04B35/80

Abstract:
A system and method for forming a ceramic matrix composite blade track is provided. The method may include stacking a plurality of first plies to form a first porous preform layer, the first plies including a plurality of first ceramic fibers. The method may further include stacking a plurality of second plies to form a second porous preform layer, the second plies including a plurality of second ceramic fibers. The method may further include combining the first porous preform layer and the second porous preform layer to form a unified porous preform. The method may further include forming a structural layer by infiltrating the first porous preform with a first ceramic matrix material, and forming an abradable layer by infiltrating the second porous preform with a second ceramic matrix material.
Public/Granted literature
- US20190292931A1 CMC BLADE TRACK WITH INTEGRAL ABRADABLE Public/Granted day:2019-09-26
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