Cordierite ceramics containing silicon carbide whisker reinforce

Details Cordierite ceramics containing silicon carbide whisker reinforce Cordierite ceramics containing silicon carbide whisker reinforce

1986-04-25

1987-06-16

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 95, 264 60, C04B 3556, C04B 3518, C04B 3520

Patent

active

046736581

ABSTRACT:
Silicon-carbide-whisker-reinforced cordierite ceramic products are prepared by uniformly incorporating the whiskers in the ceramic batch, forming the batch into a product preform, e.g. by extrusion, and firing the preform according to a process wherein the conversion of the oxide batch materials to cordierite occurs under a non-oxidizing atmosphere. Significant improvements in product strength and thermal downshock resistance are obtained.

REFERENCES:
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patent: 4279654 (1981-07-01), Yajima et al.
patent: 4280845 (1981-07-01), Matsuhisa et al.
patent: 4295892 (1981-10-01), Matsuhisa et al.
patent: 4511663 (1985-04-01), Taylor
patent: 4543345 (1985-09-01), Wei
patent: 4568402 (1986-02-01), Ogawa et al.
Bender, B. A. et al., "Electron Microscopy of Ceramic Fiber-Ceramic Matrix Composites . . . " Cer. Eng. Sci. Proc., vol. 5 (1984) pp. 513-529.

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