High strength and high modulus carbon fibers

Han Gi Chae, Bradley A. Newcomb, Prabhakar V. Gulgunje, Yaodong Liu, Kishor K. Gupta, Manjeshwar G. Kamath, Kevin M. Lyons, Sushanta Ghoshal, Chandrani Pramanik, Lucille Giannuzzi, Korhan Şahin, Ioannis Chasiotis, Satish Kumar*

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: Dergiye katkıMakalebilirkişi

202 Atıf (Scopus)

Özet

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.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)81-87
Sayfa sayısı7
DergiCarbon
Hacim93
DOI'lar
Yayın durumuYayınlandı - 8 Ağu 2015
Harici olarak yayınlandıEvet

Bibliyografik not

Publisher Copyright:
© 2015 Elsevier Ltd.All rights reserved.

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