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Compressional Behavior of Carbon Nanotube Reinforced Mesophase Pitch-based Carbon Fibers  

Ahn Young-Rack (Enviro-polymers Design Lab., Hyperstructured Organic Materials Research Center (HOMRC) and School of Materials Science and Engineering, Seoul National University)
Lee Young-Seak (Department of Fine Chemical Engineering & Chemistry, Chungnam National University)
Ogale A.A. (Department of Chemical Engineering and Center for Advanced Engineering Fibers and Films, Clemson University)
Yun Chang-Hun (School of Applied Chemistry and Chemical Engineering, Sungkyunkwan University)
Park Chong-Rae (Enviro-polymers Design Lab., Hyperstructured Organic Materials Research Center (HOMRC) and School of Materials Science and Engineering, Seoul National University)
Publication Information
Fibers and Polymers / v.7, no.1, 2006 , pp. 85-87 More about this Journal
Abstract
The tensile-recoil compressional behavior of the carbon nanotube reinforced mesophase pitch (MP)-based composite carbon fibers (CNT-re-MP CFs) was investigated by using Instron and SEM. The CNT-re-MP CFs exhibited improved, or at least equivalent, compressive strength as compared with commercial MP-based carbon fibers. Particularly, when CNT of 0.1 wt% was reinforced, the ratios of recoil compressive strengths to tensile strength of CNT-re-MPCFs were much higher (the difference is at least 10 % or higher) than those for the commercial counterparts and even than those for PAN-based commercial carbon fibers. FESEM micrographs showed somewhat different fractography from that of a typical shear failure as the CNT content increased.
Keywords
Carbon fibers; Carbon nanotubes; Mixing; Scanning electron microscopy; Fracture;
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