Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Coating – specific composition or characteristic
Reexamination Certificate
2005-05-03
2005-05-03
Nguyen, Ninh H. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Coating, specific composition or characteristic
C428S632000, C428S336000, C428S701000, C428S702000
Reexamination Certificate
active
06887044
ABSTRACT:
Disclosed is a gas turbine blade (1) having a ceramic heat-insulating layer (17). The ceramic heat-insulating layer (17) consists of 10-95% wt. % magnesium aluminate, 5-90 wt. % magnesium oxide and 0-20 wt. % aluminum oxide. Magnesium oxide particles are incorporated into a matrix made of spindle-shaped magnesium aluminate, enabling the thermal expansion coefficient of the ceramic heat-insulating layer (17) to be adapted in a particularly suitable manner to a metallic base body (15) of the gas turbine blade (1). The ceramic heat-insulating layer (17) also has a porosity which is greater that 3 vol. %, thereby guaranteeing sufficiently low heat conductivity.
REFERENCES:
patent: 4576874 (1986-03-01), Spengler et al.
patent: 4878812 (1989-11-01), Kito et al.
patent: 5223045 (1993-06-01), Priceman
patent: 5338577 (1994-08-01), Burdette, II
patent: 5350599 (1994-09-01), Rigney et al.
patent: 6764771 (2004-07-01), Heimberg et al.
patent: 660 200 (1987-03-01), None
patent: 9634128 (1996-10-01), None
patent: 9826110 (1998-06-01), None
patent: 0055386 (2000-09-01), None
patent: 0100539 (2001-01-01), None
patent: 0118274 (2001-03-01), None
Lallemand et al. “Fabrication process of spinel powder for plasma spraying”, Journal of the European Ceramic Society, Elsevier Science Pub., Barking, Essex, GB, Bd. 18, Nr. 14, Dec. 1, 1998, S. 2095-2100.
Fleck Robert
Jansing Thomas
Schumann Eckart
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