Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-27T17:59:49.888Z Has data issue: false hasContentIssue false
  • English
  • Français

Plasticity of decagonal Al73Ni10Co17 quasicrystals

Published online by Cambridge University Press:  01 February 2011

Peter Schall ,
Michael Feuerbacher  and
Knut Urban
Peter Schall
Affiliation:
DEAS, Harvard University, Cambridge, MA 02138, U.S.A.
Michael Feuerbacher
Affiliation:
Institut für Festkörperforschung, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
Knut Urban
Affiliation:
Institut für Festkörperforschung, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
Get access

Abstract

We present a study of the deformation mechanism of decagonal Al73Ni10Co17 quasicrystals by means of transmission electron microscopy. We performed compression tests on single-quasicrystalline samples in three different orientations: with the compression axis parallel to, inclined by 45 ° and perpendicular to the tenfold axis of the decagonal quasicrystal. The deformed samples reveal characteristic orientation-dependent dislocation structures leading us to the conclusion that fundamentally different deformation mechanisms are involved in plastic deformation in the three deformation geometries. We explicitly identified the Burgers vectors of the dislocations as interatomic vectors in the structure of decagonal Al-Ni-Co.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 805: Symposium LL – Quasicrystals , 2003 , LL5.5
Copyright
Copyright © Materials Research Society 2004

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

REFERENCES

1. Steurer, W., Haibach, T., Zhang, B., Kek, S., and Lück, R., Acta Cryst. B49, 1993, 661.Google Scholar
2. Feuerbacher, M., Bartsch, M., Grushko, G., Messerschmidt, U. and Urban, K., Philos. Mag. Lett. 76, 369 (1997).Google Scholar
3. Yokoyama, Y., Note, R., Kimura, S., Fukaura, K., Sunada, H. and Inoue, A., Mater. Trans. Japan Inst. Met. 40, 351 (1999).Google Scholar
4. Fisher, I. R., Kramer, M.J., Islam, Z., Ross, A. R., Kracher, A., Wiener, T., Sailer, M. J., Goldman, A. I. and Canfield, P. C., Philos. Mag. B79, 425 (1999).Google Scholar
5. Edagawa, K., Ohta, S., Takeuchi, S., Kabutoya, E., Guo, J. Q. and Tsai, A.-P., Mater. Sci. Eng. A294–296, 748 (2000).Google Scholar
6. Schall, P., Feuerbacher, M. and Urban, K., Philos. Mag. Lett. 81, 339 (2001).Google Scholar
7. Zhang, Z. and Urban, K., Philos. Mag. Lett. 60, 97 (1989).Google Scholar
8. Yan, Y. and Wang, R., Philos. Mag. Lett. 66, 253 (1992).Google Scholar
9. Yan, Y., Zhang, Z. and Wang, R., Philos. Mag. Lett. 69, 123 (1994).Google Scholar
10. Ritsch, S., Beeli, C., Nissen, H.-U., Gödecke, T., Scheffer, M. and Lück, R., Philos. Mag. Lett. 78, 67 (1998).Google Scholar
11. Schall, P., Feuerbacher, M. and Urban, K., submitted to Phys. Rev. B.Google Scholar
12. Stohr, J. F. and Poirier, J. P., Philos. Mag. 25, 1313 (1972).Google Scholar
13. Nabarro, F. R. N., Philos. Mag. 16, 231 (1967).Google Scholar
14. Schall, P., Feuerbacher, M. and Urban, K., in preparation.Google Scholar