Hostname: page-component-6bf8c574d5-9nwgx Total loading time: 0 Render date: 2025-02-22T20:15:44.665Z Has data issue: false hasContentIssue false
  • English
  • Français

Local Order in Single Grain Cd-Yb Icosahedral Phase

Published online by Cambridge University Press:  01 February 2011

Y. Q. Wu ,
M. J. Kramer  and
T. A. Lograsso
Y. Q. Wu
Affiliation:
Metals and Ceramics Sciences, Ames Laboratory, Ames, Iowa 50011
M. J. Kramer
Affiliation:
Metals and Ceramics Sciences, Ames Laboratory, Ames, Iowa 50011
T. A. Lograsso
Affiliation:
Metals and Ceramics Sciences, Ames Laboratory, Ames, Iowa 50011
Get access

Abstract

Single grains of icosahedral Cd84Yb16 quasicrystalline phase were characterized using high resolution transmission electron microcopy (HRTEM) technique. Image reconstruction of the obtained multiple through-focal series for both the two and five-fold axes are consistent with the local cluster structure of concentric polyhedra consisting of Cd tetrahedron (1/3 occupied icosahedron), Cd dodecahedron, Yb icosahedron and a Cd icosidodecahedron. Edge-sharing of the clusters can result in complete tiling of the 2-D projections. Simple matching rules are being investigated to construct a 3-D model.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 805: Symposium LL – Quasicrystals , 2003 , LL7.4
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

REFERENCE

1. Shechtman, D., Blech, I., Gratias, D. and Cahn, J. W., Phys. Rev. Lett., 53, 1951 (1984).Google Scholar
2. Kramer, M. J., Hong, S. T., Canfield, P. C., Fisher, I. R., Corbett, J. D., Zhu, Y. and Goldman, A. I., J. Alloys Comp., 342, 82 (2002).Google Scholar
3. Takakura, H., Shioni, , Sata, M., Yamamoto, A. and Tsai, A.P., Phys. Rev. Lett., 86, 236 (2001).Google Scholar
4. Tsai, A. P., Guo, J. Q., Abe, E., Takakura, H. and Sato, T. J., Nature, 408, 537 (2000).Google Scholar
5. Guo, J. Q., Abe, E. and Tsai, A. P., Phys. Rev. B, 62, R14605 (2000).Google Scholar
6. Ross, A. R., Wu, Y. Q., Kramer, M. J. and Lograsso, T. A., ICQ-8, India, 2003.Google Scholar
7. Takakura, H., Guo, J. Q. and Tsai, A. P., Phil. Mag. Lett., 81, 411 (2000).Google Scholar
8. Larson, A. C. and Cromer, D.T., Acta Cryst. B27, 1875 (1971).Google Scholar