Polycarbosilazane-Resin Polymerization Process

Process suitable for production of silicon nitride/silicon carbide fibers. High-tensile-strength silicon carbide/silicon nitride fibers prepared by pyrolyzing fibers drawn from melt of polycarbosilazane resin. Such fibers show promise as replacements for carbon fibers in high-strength composites for automotive, aerospace, and other applications where high electrical conductivity of carbon fibers makes them unsuitable.