Compositions: ceramic – Ceramic compositions – Carbide or oxycarbide containing
Patent
1994-12-05
1996-09-03
Group, Karl
Compositions: ceramic
Ceramic compositions
Carbide or oxycarbide containing
501 92, 501 97, 501 98, C04B 35565, C04B 35584
Patent
active
055523536
ABSTRACT:
A process for the synthesis of homogeneous advanced ceramics such as SiC+AlN, SiAlON, SiC+Al.sub.2 O.sub.3, and Si.sub.3 N.sub.4 +AlN from natural clays such as kaolin, halloysite and montmorillonite by an intercalation and heat treatment method. Included are the steps of refining clays, intercalating organic compounds into the layered structure of clays, drying the intercalated mixture, firing the treated atmospheres and grinding the loosely agglomerated structure. Advanced ceramics produced by this procedure have the advantages of homogeneity, cost effectiveness, simplicity of manufacture, ease of grind and a short process time. Advanced ceramics produced by this process can be used for refractory, wear part and structure ceramics.
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Group Karl
Koltos E. Philip
The United States of America as represented by the Secretary of
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