C/C composites using mesocarbon microbeads (MCMB) as matrix and pitch based carbon fibers (CF) as reinforcement were prepared through simple oxidation treatment,mechanical blend,hot press molding and carbonization.

High density isotropic carbon cakes were obtained from mesocarbon microbeads with variousβ resin content by heat pressure molding and carbonization at 1000℃ for 1 h.

In this paper the status and development of mesocarbon microbeads are reviewed.

In order to prepare the high surface area activated mesocarbon microbeads with high mesopore content, mesophase pitch microbeads were activated with KOH at 850 ℃ and the effects of the weight ratio of KOH/MMB to the structure and morphology of activated carbon microbeads were investigated in this paper.

In this paper,the coal tar pitch-based mesophase pitch microbeads (MMB) were activated by chemical activation with KOH in different activation condition.

Pre\|activated pitch\|based carbon spheres were impregnated in aqueous solution of different metallic salts to prepare the pitch spheres containing metal.

The researching history on preparation of noncircular mesophase pitch-based carbon fibers and the main affecting factors on properties of the fibers were reviewed.