Patents Represented by Attorney Carol K. Stouffer

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  • Amorphous silicon nitride composition containing carbon, and vapor phase process
    Patent number: 4036653
    Abstract: An amorphous silicon nitride composition consisting essentially of from 95.0% to 99.9% by weight of amorphous silicon nitride and from 0.1% to 5.0% of carbon prepared by the vapor phase reaction of silicon tetrachloride, ammonia, and a gaseous hydrocarbon at temperatures from 1000.degree.C. to 1500.degree.C. This composition is particularly useful in the preparation of fully dense ceramics requiring high strength at elevated temperatures.
    Type: Grant
    Filed: May 28, 1975
    Date of Patent: July 19, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Howard Wayne Jacobson