Process for producing beta'-silicon aluminum oxynitride (B'-SiAl

Details Process for producing beta'-silicon aluminum oxynitride (B'-SiAl Process for producing beta'-silicon aluminum oxynitride (B'-SiAl

1982-12-16

1985-04-16

O'Keefe, Veronica

Compositions: ceramic

Ceramic compositions

Refractory

501 97, 501 10, 423327, 264122, C04F 3556

Patent

active

045116660

ABSTRACT:
A process for producing a refractory material comprising essentially beta'-SiAlON wherein initial reactants comprising Al.sub.2 O.sub.3 and SiO.sub.2 are nitrided for sufficient times and temperatures to convert at least a portion of the initial reactants to at least a portion of effective reactants and the effective reactants are then further heated to produce an essentially beta'-SiAlON refractory material.

REFERENCES:
patent: 3837871 (1974-09-01), Weaver
patent: 3903230 (1975-09-01), Kamigaito et al.
patent: 3960581 (1976-06-01), Cutler
patent: 3991166 (1976-11-01), Jack et al.
Jack, K. H., "Review: SiAlONs and Related Nitrogen Ceramics", J. Material Sciences, 11, pp. 1135-1158, 1976.

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