Isocyanate-Modified Polysilazanes: Conversion to Ceramic Materials
J. Schwark, M. Sullivan
A tailorable viscosity, liquid polysilazane has been developed which thermosets to a solid ceramic precursor for both silicon nitride (Si3 N4 ) and silicon carbide (SiC). Conversion of the thermoset, crosslinked polysilazane carbide or silicon nitride is controlled by the pyrolysis conditions employed.