Silicon carbide composites, and methods for making same

Details Silicon carbide composites, and methods for making same Silicon carbide composites, and methods for making same

2005-07-19

2005-07-19

Stein, Stephen (Department: 1775)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

C428S294400, C428S446000, C428S469000, C428S698000

Reexamination Certificate

active

06919127

ABSTRACT:
Improved silicon carbide composites made by an infiltration process feature a metal phase in addition to any residual silicon phase. Not only are properties such as mechanical toughness improved, but the infiltrant can be so engineered as to have much diminished amounts of expansion upon solidification, thereby enhancing net-shape-making capabilities. Further, multi-component infiltrant materials may have a lower liquidus temperature than pure silicon, thereby providing the practitioner greater control over the infiltration process. In particular, the infiltration may be conducted at the lower temperatures, where low-cost but effective bedding or barrier materials can terminate the infiltration process once the infiltrant has migrated through the permeable mass up to the boundary between the mass and the bedding material.

REFERENCES:
patent: 3205043 (1965-09-01), Taylor
patent: 3246275 (1966-04-01), Schrewelius
patent: 3275722 (1966-09-01), Popper
patent: 3495939 (1970-02-01), Forrest
patent: 3725015 (1973-04-01), Weaver
patent: 4174971 (1979-11-01), Schrewelius
patent: 4184894 (1980-01-01), Hillig et al.
patent: 4336075 (1982-06-01), Quist et al.
patent: 4600481 (1986-07-01), Sane et al.
patent: 4643543 (1987-02-01), Mohn et al.
patent: 4735923 (1988-04-01), Sugarowa et al.
patent: 5006417 (1991-04-01), Jackson
patent: 5079195 (1992-01-01), Chaing et al.
patent: 5125822 (1992-06-01), Kasprzyk
patent: 5167920 (1992-12-01), Skibo et al.
patent: 5205970 (1993-04-01), Brun et al.
patent: 5316851 (1994-05-01), Brun et al.
patent: 5382456 (1995-01-01), Hocking et al.
patent: 5395701 (1995-03-01), White et al.
patent: 5464583 (1995-11-01), Lessing
patent: 5509555 (1996-04-01), Chaing et al.
patent: 5523050 (1996-06-01), Lloyd et al.
patent: 5620804 (1997-04-01), Kennedy et al.
patent: 5626692 (1997-05-01), Rohatgi et al.
patent: 5865922 (1999-02-01), Behrendt et al.
patent: 5945166 (1999-08-01), Singh et al.
patent: 6183874 (2001-02-01), Yamagata et al.
patent: 6503572 (2003-01-01), Waggoner et al.
patent: 197 11 831 (1998-09-01), None
patent: 0 798 280 (1997-10-01), None
J.S. Haggerty and Y.—M. Chaing, “Reaction-Based Processing Methods for Ceramics and Composites”,Ceram. Eng. Sci. Proc., 11[7-8] pp. 757 and 760-781 (1990).
Leszek Hozer et al., “Reactive-infiltration processing of SiC-metal and SiC-intermetallic composites”,Journal of Materials Research, vol. 11, No. 9, Sep. 1996, pp. 2346-2357.
Leszek Hozer et al., “Phase Composition Control in SiC Composites Prepared by Reactive-Infiltration with Metal-Silicon Alloys”, inAdvanced Synthesis and Processing of Composites and Advanced Ceramics, Ceramic Trans., v56, American Ceramic Society, Inc., 1995, pp. 157-165.

Affiliated with

Also associated with

Rating

Silicon carbide composites, and methods for making same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Silicon carbide composites, and methods for making same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Silicon carbide composites, and methods for making same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3410949