Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2007-06-05
2007-06-05
Zimmerman, John J. (Department: 1775)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S655000, C428S405000, C428S539500
Reexamination Certificate
active
11075586
ABSTRACT:
A method for making aerospace face seal rotors reinforced by rhenium metal, alloy, or composite in combination with silicon carbide or other ceramic. The resulting rotor also is disclosed. Ceramic grains, preferably silicon carbide (SiC), are mixed with powdered metallic (PM) binder that may be based on a refractory metal, preferably rhenium. The mixture is applied to a rotor substrate. The combined ceramic-metal powder mixture is heated to sintering temperature under pressure to enable fusion of the ceramic in the resulting metal-based substrate. A load may then be applied under an elevated temperature. The resulting coated rotor can exhibit high hot hardness, increased durability and/or high hot wear resistance, as well as high thermal conductivity.
REFERENCES:
patent: 2467675 (1949-04-01), Kurtz et al.
patent: 3378392 (1968-04-01), Longo
patent: 3594011 (1971-07-01), Haller
patent: 3969186 (1976-07-01), Thompson et al.
patent: 4048382 (1977-09-01), Fengler
patent: 4067742 (1978-01-01), Fletcher et al.
patent: 4119458 (1978-10-01), Moore
patent: 4155660 (1979-05-01), Takahashi et al.
patent: 4380471 (1983-04-01), Lee et al.
patent: 4432794 (1984-02-01), Holleck
patent: 4764225 (1988-08-01), Shankar et al.
patent: 4915733 (1990-04-01), Schutz et al.
patent: 4927798 (1990-05-01), Baldi
patent: 4985051 (1991-01-01), Ringwood
patent: 5262202 (1993-11-01), Garg et al.
patent: 5476531 (1995-12-01), Timm et al.
patent: 5577263 (1996-11-01), West
patent: 5704538 (1998-01-01), Mittendorf
patent: 5707567 (1998-01-01), Pfaff
patent: 5722034 (1998-02-01), Kambara
patent: 5730792 (1998-03-01), Camilletti et al.
patent: 5745834 (1998-04-01), Bampton et al.
patent: 5824425 (1998-10-01), Mitttendorf
patent: 5853904 (1998-12-01), Hall et al.
patent: 5928799 (1999-07-01), Sherman et al.
patent: 5993980 (1999-11-01), Schmitz et al.
patent: 6039920 (2000-03-01), Koch et al.
patent: 6127047 (2000-10-01), Worrell et al.
patent: 6200524 (2001-03-01), Griskin et al.
patent: 6203752 (2001-03-01), Bewlay et al.
patent: 6284357 (2001-09-01), Lackey et al.
patent: 6338906 (2002-01-01), Ritland et al.
patent: 6412784 (2002-07-01), Cohen
patent: 6655695 (2003-12-01), Sund et al.
patent: 2003/0223903 (2003-12-01), Adams
patent: 24 33 814 (1976-01-01), None
patent: 0 453 303 (1991-10-01), None
patent: 1 123 908 (2001-08-01), None
patent: 1804141 (1996-05-01), None
patent: WO 01 35006 (2001-05-01), None
patent: PCT/US03/17118 (2003-10-01), None
Kennametal Metallurgical Products, Matrix Powders information sheet, www.kennametal.com.
Ultramet, Silicon carbide information sheet, www.ultramet.com.
Heat treatment, Nitriding information sheet.
Danish Technological Institute, PVD Coatings, www.tribology.dti.dk.
Accuratus, Sialon information sheet, www.accuratus.com.
Adams Robbie J.
Giesler William L.
Honeywell International , Inc.
Ingrassia Fisher & Lorenz
Savage Jason L.
Zimmerman John J.
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