A SiC fiber was synthesized from polycarbosilane-polyvinylsilane (PCS-PVS)
blend polymer with electron beam curing under vacuum. The SiC fiber obtaine
d from the blend polymer which contains 20 wt% of PVS in PCS was very fine
and flexible, and its average diameter was 7 mum. Although the yield of the
SiC fiber from the blend polymer was 73%, that is lower than that of 82% f
rom PCS, with the curing dose of 15 MGy, its yield increased up to 80% with
the curing dose of 35 MGy. (C) 2001 Published by Elsevier Science Ltd.