Abstract:In present study, the evolution of sp2 hybridization for CCF300 carbon fiber during the heat treatment
process was studied by Raman spectroscopy. The transition from sp3 to sp2 hybridization was traced by the method of
deconvolution for Raman scattering curves. The parameter which can be used to trace the graphitization was defined as
琢,namely IG
IG +IC. The results indicated that with the increasing of the heat treatment temperature, the amount of amor鄄
phous carbon decreased gradually. Before 1 700益, the rate of transition to sp2 hybridization structure is more rapid.
After 1 700益, however, this rate had slowed down dramatically and the pseudo鄄graphitic structure is formed gradually
after the transition to sp2 hybridization structure.
