Single crystal oxide turbine blades

Details Single crystal oxide turbine blades Single crystal oxide turbine blades

1993-10-29

1998-05-26

Nelson, Peter A.

Stock material or miscellaneous articles

Composite

Of inorganic material

428701, 428702, 415200, 427427, 2988971, B32B 1500, B32B 3100

Patent

active

057562253

ABSTRACT:
Blades for use in combusion turbine engines are formed from a single crystal aluminum garnet body--desirably a rare earth aluminum garnet body--having an epitaxial surface layer of a second aluminum garnet having a lattice constant larger than that of the body garnet so as to provide a compressive strain, to thereby strengthen the blade.

REFERENCES:
patent: 4135857 (1979-01-01), Pannmone
patent: 4520501 (1985-05-01), Miki
patent: 5180285 (1993-01-01), Lav
patent: 5395694 (1995-03-01), Sogabe et al.
patent: 5451142 (1995-09-01), Cetel et al.

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