Relation of Carbon Fiber Tensile Properties to Process Conditions

12 RELATION OF CARBON FIBER TENSILE PROPERTIES TO PROCESS CONDITIONS 

The theoretical modulus of crystalline graphite is about 1060 GPa and hot stretching a PAN based carbon fiber will produce a fiber with a modulus up to about 700 GPa but will not surpass values recorded for pitch based fibers (965 GPa). The theoretical strength of 

Huang and Young [136] have determined the effect of fiber microstructure upon the modulus of PAN and pitch based carbon fibers. 

The various properties of PAN based carbon fibers have been investigated [138,139]. 

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