Abstract:

SiC ceramics fibers reinforced metal and ceramics composite materials have important application foreground in the area of space flight, inner wall of fusion reactor and new engine cylinders, The method^[1] to fabricate SiC fibers by pyrolysis from organic polycarbosilane precursor fibers is an applicable technology, But oxygen must be used to cure the precursor fibers,and the residual SiO₂ in the final SiC fibers seriously affect the high temperature resistant properties, In recent years, other curing methods^[2] were explored to improve SiC fiber's properties, Previous results^[3] showed that using electron beam to irradiate polycarbosilane fibers in various atmosphere.