Silicon carbide whisker-zirconia reinforced mullite and alumina

Details Silicon carbide whisker-zirconia reinforced mullite and alumina Silicon carbide whisker-zirconia reinforced mullite and alumina

1986-05-21

1987-04-14

Lander, Ferris H.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 95, 501105, 264 65, C04B 3556

Patent

active

046578773

ABSTRACT:
The flexural strength and/or fracture toughness of SiC whisker-reinforced composites utilizing mullite or alumina as the matrix material for the composite are increased by the addition of zirconia in a monoclinic or tetragonal phase to the matrix. The zirconia addition also provides for a lower hot-pressing temperature and increases the flexural strength and/or fracture toughness of the SiC whisker-reinforced composites over SiC whisker-reinforced composites of the similar matrix materials reinforced with similar concentrations of SiC whiskers.

REFERENCES:
patent: 4543345 (1985-09-01), Wei

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