Stock material or miscellaneous articles – Composite – Of inorganic material
Patent
1992-04-13
1996-11-12
Nelson, Peter A.
Stock material or miscellaneous articles
Composite
Of inorganic material
428689, 428699, 428702, 415200, 416219R, 416183, B32B 900
Patent
active
055738621
ABSTRACT:
Blades for use in combusion turbine engine are formed from a single crystal garnet body--suitably an aluminum garnet, desirably a rare earth aluminum garnet--having an epitaxial surface layer of a second garnet having a lattice constant larger than that of the body garnet so as a compressive strain, to thereby strengthen the blade.
REFERENCES:
patent: H557 (1988-12-01), Morris
patent: 3891351 (1975-06-01), Norbut
patent: 4135857 (1979-01-01), Pannmone
patent: 4451205 (1984-05-01), Honda
patent: 4502837 (1985-03-01), Blair
patent: 4520541 (1985-06-01), Miki
Morris et al., "Epitaxial Strengthening of Crystals", U.S. Statutory Invention Registration, Reg. No. H557, pub. Dec. 6, 1988
J. E. Marion, "Compressive epitactic layers on single-crystal components for improved mechanical durability and strength", J. Appl. Physics, 62, No. 5, Sep. 1, 1987, pp. 2065-2069.
J. E. Mee et al., "Chemical Vapor Deposition of Epitaxial VIG on YAG and Epitaxial GdIG on YAG", Appl. Phys. Lett. 10, No. 10, pp. 289-291, May 15, 1967.
D. M. Gualtieri, "Fe-YIG: Narrow x-ray linewidth epitaxial layers on Gd.sub.3 Ga.sub.5 O.sub.12 " J. Appl. Phys., 63, No. 8, Apr. 1988, pp. 3795-3797.
J. C. Lambropoulos, "Toughening and crack tip shielding to brittle materials by residually stressed thin films", J. Vac. Sci. Technol., A9(4), Jul./Aug. 1991.
P. H. Kobrin et al., "The effects of thin compressive films on indentation fracture toughness measurements", J. Mat. Sci., 24, pp. 1363-1367 (1989).
Gualtieri Devlin M.
Morris Robert C.
Narasimhan Dave
Whalen Philip J.
Allied-Signal Inc.
Kreger, Jr. Verne E.
Nelson Peter A.
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