F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
F01D 5/28 (2006.01) B32B 18/00 (2006.01) C04B 35/565 (2006.01) C04B 35/65 (2006.01)
Patent
CA 2599626
A hybrid turbine blade (10) includes a composite core (16) enclosed within a composite shell (14), the composite core including a mixture of silicon carbide, silicon and carbon; the composite shell including a wound or woven ceramic carbide fiber material. A method of forming the blade may include the steps of (a) shaping a carbon preform; (b) reacting the preform in a furnace with silicon at a temperature above the melting point of silicon to thereby form a CMC composite core component (16) made up of a mixture of silicon carbide, silicon and carbon; (c) locating a temporary mandrel core component (18) adjacent the aid CMC composite core component to form a multi-core assembly; (d) forming a composite shell (14) by laying up prepreg tapes around the multi-core assembly; and (e) removing the temporary mandrel core (18).
Boy Jeffrey H.
Landini Dennis J.
Company General Electric
Craig Wilson And Company
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