Oxidation resistant alumina-silica articles containing silicon c

Details Oxidation resistant alumina-silica articles containing silicon c Oxidation resistant alumina-silica articles containing silicon c

1987-08-24

1989-01-17

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 90, 501 95, 501100, 501133, C04B 3556

Patent

active

047988142

ABSTRACT:
A shaped article comprises a continuous alumina-silica of alumina-boria-silica first phase, an in-situ generated discontinuous carbon second phase, and a discontinuous silicon carbide third phase, said article being stable to an oxidative atmosphere when heated to 1300.degree. C. for at least 2 hours.

REFERENCES:
patent: 3385915 (1968-05-01), Hamling
patent: 3632709 (1972-01-01), Hayes et al.
patent: 3663182 (1972-05-01), Hamling
patent: 3709706 (1973-01-01), Sowman
patent: 3795524 (1974-03-01), Sowman
patent: 3846527 (1974-11-01), Winter et al.
patent: 3982955 (1976-09-01), Marsmann et al.
patent: 4010233 (1977-03-01), Winter et al.

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