Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1997-08-18
1999-11-09
Zimmerman, John J.
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
428472, 416241B, B32B 1504, C23C 1402, C23C 1408, F01D 528
Patent
active
059810882
ABSTRACT:
A thermal insulating ceramic layer for use in a thermal barrier coating system on a component designed for use in a hostile thermal environment, such as turbine, combustor and augmentor components of a gas turbine engine. The ceramic layer is formed of zirconia stabilized by yttria and characterized by a columnar grain structure in which a monoclinic phase is present. To attain the monoclinic phase, the ceramic layer contains less than six weight percent yttria, with about two to five weight percent yttria being preferred. The ceramic layer is preferably part of a thermal barrier coating system that includes a substrate and a bond coat adhering the ceramic layer to the substrate. To obtain the desired columnar grain structure, the ceramic layer is deposited by a PVD technique, preferably EBPVD.
REFERENCES:
patent: 4055705 (1977-10-01), Stecura et al.
patent: 4132916 (1979-01-01), Hueschen et al.
patent: 4248940 (1981-02-01), Goward et al.
patent: 4328285 (1982-05-01), Siemers et al.
patent: 4676994 (1987-06-01), Demaray
patent: 4861618 (1989-08-01), Vine et al.
patent: 4880614 (1989-11-01), Strangman et al.
patent: 4966820 (1990-10-01), Kojima et al.
patent: 4996117 (1991-02-01), Chu et al.
patent: 5384200 (1995-01-01), Giles et al.
patent: 5562998 (1996-10-01), Strangman
patent: 5603771 (1997-02-01), Seiberras et al.
Structural properties of Y2O3 stabilized ArO2 films deposited by reactive thermal coevaporation, JP Cheron, F Tcheliebou, and A Boyer 8257 a Journal of Vacuum Science & Technology A 10(5) NY, US, pp. 3207-3209 Sep./Oct. 1992.
Study of Deposition Process and Charaterization of Yttria PSZ Films. hird Euro-Ceramics, V2 pp. 769-774 by E Blachere, P Chainiau and E Beauprez, Sep. 12, 1993.
S. Stecura, "Effects of Compositional Changes on the Performance of a Thermal Barrier Coating System," NASA Technical Memorandum 78976 (1978) (no month).
Bruce Robert W.
Skelly David W.
Viguie Rudolfo
Wortman David J.
General Electric Company
Hess Andrew C.
Narciso David L.
Zimmerman John J.
LandOfFree
Thermal barrier coating system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thermal barrier coating system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal barrier coating system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1453213