Hostname: page-component-78c5997874-fbnjt Total loading time: 0 Render date: 2024-11-02T23:26:30.507Z Has data issue: false hasContentIssue false
  • English
  • Français

Preferred orientation of high performance carbon fibers

Published online by Cambridge University Press:  31 January 2011

T. Hamada ,
M. Furuyama ,
T. Tomioka  and
M. Endo
T. Hamada
Affiliation:
Advanced Materials and Technology Research Laboratories, Nippon Steel Corporation, 1618 Ida, Nakahara-ku, Kawasaki 211, Japan
M. Furuyama
Affiliation:
Advanced Materials and Technology Research Laboratories, Nippon Steel Corporation, 1618 Ida, Nakahara-ku, Kawasaki 211, Japan
T. Tomioka
Affiliation:
Advanced Materials and Technology Research Laboratories, Nippon Steel Corporation, 1618 Ida, Nakahara-ku, Kawasaki 211, Japan
M. Endo
Affiliation:
Faculty of Engineering, Shinshu University, 500 Wakasato, Nagano 380, Japan
Get access

Abstract

The preferred orientation of polyacrylnitrile (PAN)-based carbon fibers, mesophase pitch-derived carbon fibers, and pitch precursor fibers was studied by using x-ray diffraction technique. The half width at half maximum (HWHM) intensity of the φ scan x-ray diffraction profiles of these fibers was a minimum at around 2θ = 26°. The result implies that a crystallite with a larger coherence length of crystallite size Lc(002) is better aligned along the fiber axis than that with a smaller Lc(002) in these fibers. Further, θ-2θ scan profiles depending on φ showed that a better aligned crystallite possesses a larger Lc(002) than a misaligned one. Lc(002) of a significantly misoriented crystallite remained constant at about 2 nm even after heat-treatment, though Lc(002) of a well-aligned crystallite was easily changed by heat-treatment for both PAN and pitch-based fibers. The pitch precursor fiber exhibited a clear peak at about 2θ = 7° in the θ-2θ profile and unusual ° scan profiles for 2θ around 7°, which were explained by assuming columnar structures formed by molecule stacking along the c-axis with periodic arrangements of the columns perpendicular to the c-axis. The periodic column stacking structure observed in the pitch precursor fiber was also detected in pitch-based carbon fibers heat-treated at lower temperatures.

Type
Articles
Information
Journal of Materials Research , Volume 7 , Issue 9 , September 1992 , pp. 2612 - 2620
Copyright
Copyright © Materials Research Society 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1.Price, R. J., Philos. Mag. 12, 564 (1965).Google Scholar
2.Goggin, P. R. and Reynolds, W. N., Philos. Mag. 16, 317 (1967).Google Scholar
3.Goldberg, H. A., Final Report to U.S. Army Research Office, Contract No. DAAE29–81-C-0016 (unpublished).Google Scholar
4.Dresselhaus, M. S., Dresselhaus, G., Sugihara, K., Spain, I. L., and Goldberg, H. A., Graphite Fibers and Filaments, edited by Manuel Cardona (Springer Series in Materials Science 5, 1988), p. 92 and p. 132.Google Scholar
5.Dobb, M. G., Johnson, D. J., and Park, C. R., J. Mater. Sci. 25, 829 (1990).Google Scholar
6.Higuchi, M., Furuyama, M., and Tomioka, T., Preprint for the 18th Annual Meeting of Carbon Society of Japan, 84 (1991), (in Japanese).Google Scholar
7.Hawthorne, H. W. and Teghtsoonian, E., J. Mater. Sci. 10, 41 (1975).Google Scholar
8.Kumar, S., Adams, W. W., and Helminiak, T. E., J. Reinforced Plas. and Comp. 7, 108 (1988).Google Scholar
9.Kubomura, K. and Tsuji, N., The 36th SAMPE International Symposium/Exhibition, San Diego, CA, 1664 (1991).Google Scholar
10.Bacon, G. E., J. Appl. Chem. 6, 477 (1956).Google Scholar
11.Hamada, T., Furuyama, M., Tomioka, T., and Endo, M., J. Mater. Res. 7, 1178 (1992).Google Scholar
12.Brooks, J. D. and Taylor, G. H., Carbon 3, 185 (1965).CrossRefGoogle Scholar
13.Mochida, I., Maeda, K., and Takeshita, K., Carbon 16, 459 (1978).Google Scholar
14.Auguie, D., Oberlin, M., Oberlin, A., and Hyvernat, P., Carbon 18, 337 (1980).Google Scholar
15.Higuchi, S., Otsuka, R., and Shiraishi, M., J. Mater. Sci. 19, 279 (1984).Google Scholar
16.Levelut, A.M., J. Phys. 40, L. 81 (1979).Google Scholar
17.Mathur, R. B., Bahl, O. P., Mittal, J., and Nagpal, K. C., Carbon 29 (7), 1059 (1991).Google Scholar
18.Hamada, T., Nishida, T., Sajiki, Y., Matsumoto, M., and Endo, M., J. Mater. Res. 2, 850 (1987).Google Scholar
19.Hamada, T., Furuyama, M., Sajiki, Y., Tomioka, T., and Endo, M., J. Mater. Res. 5, 570 (1990).Google Scholar
20.Tillgner, H. and Ruland, W., Extended Abstracts of the 18th Biennial Conference on Carbon, Worcester, MA (American Carbon Society, University Park, PA, 1987), p. 28.Google Scholar
21.Hamada, T., Furuyama, M., Sajiki, Y., Tomioka, T., and Endo, M., J. Mater. Res. 5, 1271 (1990).Google Scholar