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Microcracks in Carbon/Carbon Composites: A Microtomography Investigation using Synchrotron Radiation

Published online by Cambridge University Press:  21 March 2011

Oskar Paris
Affiliation:
Metal Physics Institute, University of Leoben, and Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstrasse 12, A-8700 Leoben, Austria
Herwig Peterlik
Affiliation:
Materials Physics Institute, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria
Dieter Loidl
Affiliation:
Materials Physics Institute, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria
Christoph Rau
Affiliation:
European Synchrotron Radiation Facility (ESRF), 6 rue Jules Horowitz, B. P. 220, F-38043 Grenoble Cédex, France
Timm Weitkamp
Affiliation:
European Synchrotron Radiation Facility (ESRF), 6 rue Jules Horowitz, B. P. 220, F-38043 Grenoble Cédex, France
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Abstract

The mechanical properties of brittle matrix composites such as carbon/carbon (C/C) are closely related to the generation and propagation of microcracks. A better understanding of the role of microcracking requires a quantification of the three-dimensional morphology of the crack network. In this study we demonstrate that phase contrast microtomography using synchrotron radiation is a unique tool to get 3D information about cracks in C/C. This is shown for three different C/C specimens subjected to different final heat treatment temperatures (HTT). The results are discussed qualitatively with respect to the influence of HTT on the distribution of microcracks and their relevance for the mechanical properties of C/C.

Type
Research Article
Copyright
Copyright © Materials Research Society 2001

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References

1. Lichtenegger, H., Müller, M., Paris, O., Riekel, C. and Fratzl, P., J. Appl. Cryst. 32, 1127 (1999).Google Scholar
2. Riekel, C., Rep. Prog. Phys. 63, 233 (2000).Google Scholar
3. Paris, O., Loidl, D., Peterlik, H., Müller, M., Lichtenegger, H. and Fratzl, P., J. Appl. Cryst. 33, 695 (2000).Google Scholar
4. Fratzl, P., Jakob, H., Rinnerthaler, S., Roschger, P. and Klaushofer, K., J. Appl. Cryst. 30, 765 (1997).Google Scholar
5. Paris, O., Zizak, I., Lichtenegger, H., Roschger, P., Klaushofer, K. and Fratzl, P., Cell. Mol. Biol. 46, 993 (2000).Google Scholar
6. Zizak, I., Paris, O., Roschger, P., Bernstorff, S., Amenitsch, H., Klaushofer, K. and Fratzl, P., J. Appl. Cryst. 33, 820 (2000).Google Scholar
7. Snigirev, A., Snigireva, I., Kohn, V., Kuznetsov, S. and Schelokov, I., Rev. Sci. Instrum. 66, 5486 (1995).Google Scholar
8. Cloetens, P., Barrett, R., Baruchel, J., Guigay, P. and Schlenker, M., J. Phys. D 29, 133 (1996).Google Scholar
9. Lengeler, B., Schroer, G. C., Richwin, M., Tümmler, J., Drakopoulos, M., Snigirev, A. and Snigireva, I., Appl. Phys. Letts. 74, 3924 (1999).Google Scholar
10. Baruchel, J., Buffiere, J. Y., Maire, E., Merle, P. and Peix, G., X-ray Tomography in Materials Science (Hermes Science Publications, Paris, 2000).Google Scholar
11. Edie, D. D., Carbon 36, 345 (1998).Google Scholar
12. Paris, O., Loidl, D., Müller, M., Lichtenegger, H. and Peterlik, H., submitted to J. Appl. Cryst. (January 2001).Google Scholar
13. Fitzer, E. and Manocha, L. M., Carbon Reinforcements and Carbon/Carbon Composites (Springer, Berlin, 1998).Google Scholar
14. Gao, F., Patrick, J. W. and Walker, A., Carbon 31, 103 (1993).Google Scholar
15. Oberlin, A., Carbon 22, 521 (1984).Google Scholar
16. Peebles, L. H., Meyer, R.A. and Jortner, J., In Interfaces in Polymer, Ceramic and Metal Matrix Composites, edited by Ishida, H. (Elsevier, New York, 1988), p. 1.Google Scholar
17. Domnanovich, A., Peterlik, H., Wanner, A. and Kromp, K., Comp. Sci. Technol. 53, 7 (1995).Google Scholar
18. Domnanovich, A., Peterlik, H. and Kromp, K., Comp. Sci. Technol. 56, 1017 (1996).Google Scholar
19. Yurgartis, S. W., MacGibbon, B. S. and Mulvaney, P., J. Mater. Sci. 27, 6679 (1992).Google Scholar