Fibrous monolithic ceramic and method for production

Details Fibrous monolithic ceramic and method for production Fibrous monolithic ceramic and method for production

1986-04-14

1988-09-20

Kendell, Lorraine T.

Stock material or miscellaneous articles

Composite

Of inorganic material

428375, 428379, 428384, 428389, 428689, B32B 900, B32B 1700, D02G 300

Patent

active

047725249

ABSTRACT:
The present invention is a fibrous monolithic ceramic product of high deny and a process for making the product. The product has a microstructure of coated fibers with planes of weakness between a core of each coated fiber and its respective coat or between each coated fiber and adjacent coated fibers, thereby toughening the product. The planes of weakness are sufficiently weak to deflect a crack from normal to the plane of weakness to a direction parallel to the plane of weakness. The green body from which the product is formed, can be plastically deformed at room temperature, formed in near-net-shape, and densified by pressureless sintering.

REFERENCES:
patent: 2699415 (1955-01-01), Nachtman
patent: 3098723 (1963-07-01), Micks
patent: 3793041 (1974-02-01), Sowman
patent: 3795524 (1974-03-01), Sowman
patent: 3811920 (1974-05-01), Galasso et al.
patent: 3953636 (1976-04-01), Kirchner
patent: 3996145 (1976-12-01), Hepburn
patent: 4605594 (1986-08-01), Owens et al.
patent: 4640848 (1987-02-01), Cerdan-Diaz et al.
patent: 4642271 (1987-02-01), Rice

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