Dispersions of silica in carbon and a method of making such disp

Details Dispersions of silica in carbon and a method of making such disp Dispersions of silica in carbon and a method of making such disp

1988-12-19

1990-10-16

Stoll, Robert L.

Compositions

Chemically interactive reactants

Inorganic reactants only

423345, 428241, 428244, 428408, 428559, C09K 300

Patent

active

049632868

ABSTRACT:
Silicon carbide is produced by a method which includes dispersing silica in a residual oil, carbonizing the oil at elevated temperatures, and heating the carbonized dispersion to form silicon carbide. Preferably, the silica is an amorphous type. Preferred residual oils are produced by distilling away crude petroleum components at temperatures up to about 350.degree. C. The silicon carbide product typically contains a mixture of powder and whisker configurations, and has many particles with a dimension less than about 1 micrometer.

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