Metal treatment – Stock – Aluminum base
Reexamination Certificate
2005-12-13
2005-12-13
Wyszomierski, George (Department: 1742)
Metal treatment
Stock
Aluminum base
C420S550000, C420S551000
Reexamination Certificate
active
06974510
ABSTRACT:
High strength, high ductility aluminum base alloys containing from 3 to 18.5 atomic percent nickel and 3 to 14.0 atomic percent yttrium, said alloy being in the devitrified state and containing less than 40 percent intermetallic phases.
REFERENCES:
patent: 5053085 (1991-10-01), Masumoto et al.
patent: 5256215 (1993-10-01), Horimura
patent: 5318641 (1994-06-01), Masumoto et al.
patent: 5532069 (1996-07-01), Masumoto et al.
patent: 0 534 470 (1993-03-01), None
patent: 0 662 524 (1995-07-01), None
“Metals Handbook: Desk Edition” Davis, J.R., ASM International, 1998, p 30.
A.L. Vasiliev et al., “Crystallization of Glassy Powder from Aluminum-Rare Earth-Transition Metal Alloys”, Materials Research Society Symposium Proceedings, (2003), vol. 754, pp. 399-404.
Bachman & LaPointe P.C.
Morillo Janelle
United Technologies Corporation
Wyszomierski George
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