Paper Title:
Pores in PAN-Based Carbon Fiber and Effects of Pore Defects on Mechanical Properties
  Abstract

Specimens of polyacrylonitrile-based carbon fiber (PAN-CF) with different graphitization temperatures were investigated by small angle X-ray scattering (SAXS) and wide angle X-ray diffraction (WAXD). Based on SAXS intensity data and fractal theory, surface fractal dimension of the pore in PAN-CF was given by small angle X-ray scattering intensity method, the size of various pores and the bigger pore percentage of unit volume were calculated by Fankuchen gradual tangent method. The result indicatesd that the size and surface fractal dimension of the pores, the bigger pore percentage of unit volume increased with increasing graphitization temperature. This forms stress concentration easily, which leads to the decreasing of tensile strength.

  Info
Periodical
Materials Science Forum (Volumes 546-549)
Edited by
Yafang Han et al.
Pages
1665-1668
DOI
10.4028/www.scientific.net/MSF.546-549.1665
Citation
Z. Hua, Y. J. Zhong, D. F. Li, "Pores in PAN-Based Carbon Fiber and Effects of Pore Defects on Mechanical Properties", Materials Science Forum, Vols. 546-549, pp. 1665-1668, 2007
Online since
May 2007
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Price
$32.00
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