Gas turbine engine seal and method for making same

Details Gas turbine engine seal and method for making same Gas turbine engine seal and method for making same

F - Mech Eng,Light,Heat,Weapons

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277/48, 170/60

F01D 11/08 (2006.01) B22F 3/00 (2006.01) F01D 11/02 (2006.01) F16J 15/44 (2006.01)

Patent

CA 1128866

13LN-1305 ABSTRACT OF THE DISCLOSURE A seal and method for making same is provided for use in a gas turbine engine. The seal includes a composite article having a substrate of sintered metallic fibers with an apparent density within the range of 14.0% to 22.5%. The substrate comprises a network of interconnected pores and metallic bonds at points of contact between fibers. The substrate further includes an external face having surface pores communicating with the network of pores. A thin film barrier surface layer, impervious to the passage of fluid, is disposed on the external face of the substrate and fills the surface pores.

340964

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