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Chae, Han Gi
Polymer nano-composites and Carbon Fiber Laboratory (P&C Lab)
Research Interests
  • Polymer Physics/ Processing, Carbon Nano-materials, Ultra high performance/ multifuctional nano-composites, Smart textile/ fiber

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High strength and high modulus carbon fibers

Cited 3 times inthomson ciCited 3 times inthomson ci
Title
High strength and high modulus carbon fibers
Author
Chae, Han GiNewcomb, Bradley A.Gulgunje, Prabhakar V.Liu, YaodongGupta, Kishor K.Kamath, Manjeshwar G.Lyons, Kevin M.Ghoshal, SushantaPramanik, ChandraniGiannuzzi, LucilleSahin, KorhanChasiotis, IoannisKumar, Satish
Issue Date
2015-11
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
CARBON, v.93, pp.81 - 87
Abstract
Carbon fibers have been processed from gel spun polyacrylonitrile copolymer on a continuous carbonization line at Georgia Tech (GT) with a tensile strength in the range of 5.5-5.8 GPa, and tensile modulus in the range of 354-375 GPa. This combination of strength and modulus is the highest for any continuous fiber reported to date, and the gel spinning route provides a pathway for further improvements in strength and modulus for mass production of carbon fibers. At short gauge length, fiber tensile strength was as high as 12.1 GPa, which is the highest value ever reported for a PAN based carbon fiber. Structure analysis shows random flaws of about 2 nm size, which results in limiting tensile strength of higher than 20 GPa. Inter-planar turbostratic graphite shear modulus in high strength carbon fibers is 30 GPa, while in graphite the corresponding value is only 4 GPa. © 2015 Elsevier Ltd.All rights reserved.
URI
https://scholarworks.unist.ac.kr/handle/201301/16923
URL
http://www.sciencedirect.com/science/article/pii/S0008622315004133
DOI
10.1016/j.carbon.2015.05.016
ISSN
0008-6223
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