Synthesis of SiC fibers by pyrolysis of electron beam cured vinyl-containing -polycarbosilane

摘要

Vinyl groups were chemically incorporated onto the molecular chains of polycarbosilane ceramics precursors, then spun into fibers, irradiated by electron beam in He gas. The irradiated precursor fibers were then transformed into SiC fibers by pyrolysis at 1200 deg C. Results showed the curing dose was effectively decreased with only 2.3 wt