Extruded whisker-reinforced ceramic matrix composites

Details Extruded whisker-reinforced ceramic matrix composites Extruded whisker-reinforced ceramic matrix composites

1988-03-11

1989-08-01

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Devitrified glass-ceramics

501 8, 501 32, 501 95, 501 69, 501 70, 501 71, C03C 1008

Patent

active

048533505

ABSTRACT:
Whisker-reinforced ceramic matrix composites comprising a principal crystal phase selected from the group of anorthite, barium-stuffed cordierite, and mixed cordierite/anorthite are prepared by extrusion of extrudable ceramic batches comprising an extrusion vehicle and a solids component consisting essentially of inorganic whiskers and powdered glass, the glass being a thermally crystallizable glass containing an internal nucleant and capable of being consolidated at ambient pressures or above to a dense consolidated preform which may be converted to a substantially glass-free whisker-reinforced ceramic matrix composite by thermal treatment.

REFERENCES:
patent: 4615987 (1986-10-01), Chyung et al.
patent: 4673658 (1987-06-01), Gadkaree et al.
patent: 4755489 (1988-07-01), Chyung et al.

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