Abstract
Pitch type carbon fiber was ground into powder. Anticorrosive properties of the coated layer containing the powder were dependent on the carbonization conditions of the fiber. The difference in anticorrosive properties was also closely related to specific surface area of the powder or the surface specific resistance, i.e., smaller surface specific area or higher surface resistance led to better anticorrosive properties. Further, anticorrosive properties were improved with the disappearance of chain structure of the powder dispersed in the coated later.