Oxide ceramic fiber composite materials and use thereof

Details Oxide ceramic fiber composite materials and use thereof Oxide ceramic fiber composite materials and use thereof

2006-09-12

2006-09-12

Dixon, Merrick (Department: 1774)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

C428S293400, C428S294100, C428S359000, C428S364000, C428S401000, C428S403000

Reexamination Certificate

active

07105224

ABSTRACT:
The invention relates to oxide ceramic fiber composite materials that, e.g., according to the invention, are used in energy conversion installations. The present invention discloses a fundamentally new concept for the previously incompatible requirements of improved brittle fracture behavior to secure thermal shock stability and damage tolerance in the temperature range of <1000° C. and of mechanical high-temperature stability to guarantee long-term form stability (creep resistance) of components. This is attained through oxide ceramic fiber composite materials containing fibers with a monocrystalline structure in some areas with an average coherence length of ≧150 μm, with a mesoscopically resistant fiber/matrix interface along the fiber axis at high temperature, which interface on loading above room temperature in a way associated with the propagation of macrocracks shows delaminations that in their extension along the fiber axis are limited microscopically locally to values smaller than the average fiber coherence length and thereby limited to a maximum of 200 μm. The present invention is also directed to the use of the fiber composite materials for components and/or installations for long-term use at high temperatures.

REFERENCES:
patent: 4490505 (1984-12-01), Pendergrass, Jr.
patent: 4828880 (1989-05-01), Jenkins et al.
patent: 5024859 (1991-06-01), Millard et al.
patent: 5322823 (1994-06-01), Ueda et al.
patent: 5436042 (1995-07-01), Lau et al.
patent: 5567518 (1996-10-01), Pejryd et al.
patent: 5856252 (1999-01-01), Lange et al.
patent: 5993715 (1999-11-01), Park
patent: 6139916 (2000-10-01), Saruhan-Brings et al.
patent: 6251317 (2001-06-01), Lundberg et al.
patent: 6505556 (2003-01-01), Miyauti
patent: 6605556 (2003-08-01), Bose
patent: 6719104 (2004-04-01), Wemple et al.
patent: 6855428 (2005-02-01), Lau et al.
patent: 2272075 (1999-11-01), None
patent: 4036386 (1991-05-01), None
patent: 10158925 (2003-06-01), None
patent: 0639165 (1981-04-01), None
patent: 0275662 (1990-11-01), None
patent: 0039165 (1992-02-01), None
patent: 0639165 (1995-02-01), None
patent: 0890559 (1999-01-01), None
patent: 0946458 (1999-10-01), None
patent: 0946458 (2001-11-01), None
patent: 0890599 (2002-09-01), None
patent: 2778655 (1999-11-01), None
patent: 95/35268 (1995-12-01), None
patent: 03/045874 (2003-06-01), None
Kolchin et al., “Oxide/oxide composites with fibres produced by internal crystallization”, Composites Science and Technology 61, (2001) 8, pp. 1079-1082.
Gadow, “Current Status and Future Prospects of CMC Brake Components and Their Manufacturing Technologies”, Ceramic Eng. & Sci. Proceedings, vol. 21, No. 3, pp. 15-29 (2000).
Donald et al., “Review Ceramic-matrix composites”, Journal of Materials Science, vol. 11, pp. 949-972 (1976).
Evans, “Creep and Fracture of Engineering Materials and Structures”, Proceedings of the Third International Conference held at University College, Swansea, pp. 929-956 (1987).

Affiliated with

Also associated with

Rating

Oxide ceramic fiber composite materials and use thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oxide ceramic fiber composite materials and use thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxide ceramic fiber composite materials and use thereof will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3540809