Ceramic matrix composite blade having integral platform structures and methods of fabrication

US8714932B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• Mark Eugene Noe · Morrow, US
• Mark Willard Marusko · Springboro, US
• Joshua B. Jamision · Monroe, US
• Suresh Subramanian · Clifton Park, US
• Michael Verrilli · New York, US
• Paul Izon · Cincinnati, US

Key dates

• Filing date: Dec 31, 2008
• Grant date: May 6, 2014
• Expiry date: Mar 29, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T156/1754
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method of making a ceramic matrix composite blade includes laying up at least one ply of the plurality of fibrous ceramic plies in a preselected arrangement to form an airfoil and dovetail preform, laying up at least one additional ply of the plurality of fibrous ceramic plies on the airfoil and dovetail preform in a second preselected arrangement to form an integral platform as part of the non-rigidized blade preform, rigidizing the blade preform to form a rigidized blade preform, and densifying the rigidized blade preform to form a ceramic matrix composite blade having an integral platform structure. A tool for making the ceramic matrix composite blade and a ceramic matrix composite blade are also disclosed.