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The montmorillonite-polyacrylonitrile (PAN) intercalation compound was heated in Ar flow for the application of clay-organic complexes to the preparation of carbide through the carbothermal reduction. ƒÀ-SiC was formed at 1200•Ž and both ƒ¿-SiC and ƒÀ-SiC were detected above 1300•Ž. SiO2 component was reduced without forming any crystalline compounds, while Al2O3 component formed Mg-Al-O compound. Compared with the reactions of a montmorillonite-carbon mixture, it was clarified that the presence of PAN in the interlayer space led to the formation of ƒ¿-SiC and suppressed the crystallization of oxides. [Received July 24, 1985]

Carbide Formation from a Montmorillonite-Polyacrylonitrile Intercalation Compound by Carbothermal Reduction