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Quasicrystal approximants with novel compositions and structures

Published online by Cambridge University Press:  01 February 2011

M. Mihalkovič  and
M. Widom
M. Mihalkovič
Affiliation:
Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213
M. Widom
Affiliation:
also at:Institute of Physics, Slovak Academy of Sciences, 84228 Bratislava, Slovakia
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Abstract

We identify several new quasicrystal approximants in alloy systems in which quasicrystals have not been previously reported. Some occur in alloys with large size contrast between the constituent elements, either containing small Boron atoms, or large Ca/Eu atoms, leading to quasicrystal structures quite different from currently known systems where the size contrast is smaller. Another group of the approximants are layered Frank-Kasper structures, demonstrating competition between decagonal and dodecagonal ordering within this family of structures.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 805: Symposium LL – Quasicrystals , 2003 , LL2.3
Copyright
Copyright © Materials Research Society 2004

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References

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