Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2007-01-23
2007-01-23
McNeil, Jennifer C. (Department: 1775)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S323000, C428S325000, C428S610000, C428S621000, C428S627000, C428S632000, C416S24100B, C416S24100B
Reexamination Certificate
active
10922009
ABSTRACT:
The present invention relates to an overlay coating which has improved strength properties. The overlay coating comprises a deposited layer of MCrAlY material containing discrete nitride particles therein. The nitride particles are present in a volume fraction in the range of 0.1% to 15.0% and have a particle size in the range of from 0.1 microns to 10.0 microns. The coating may also have oxide particles dispersed therein.
REFERENCES:
patent: 5078837 (1992-01-01), Descamp et al.
patent: 5955151 (1999-09-01), Hajmrle et al.
patent: 6129988 (2000-10-01), Vance et al.
patent: 0 552 004 (1993-07-01), None
patent: 1439947 (1976-06-01), None
Patent Abstracts of Japan, vol. 1998, No. 12, Oct. 31, 1998, JP 10 195547 A (Nippon Steel Corp.), Jul. 28, 1998.
Bales Daniel A.
Bose Sudhangshu
Burns Steven M.
Royal Tyrus E.
Ucasz Mark T.
Austin Aaron
Bachman & LaPointe
McNeil Jennifer C.
United Technologies Corporation
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