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Quasicrystals with 1-D Translational Periodicity and A Ten-Fold Rotation Axis

Published online by Cambridge University Press:  25 February 2011

L. Bendersky
L. Bendersky*
Affiliation:
Center for Materials Research, The Johns Hopkins University, Baltimore, MD and Institute for Materials Science and Engineering, National Bureau of Standards, Gaithersburg, MD
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Abstract

Studies of phase formation in rapidly solidified Al-Mn alloys (composition range 18-22 at% Mn) show that an icosahedral phase is replaced by another noncrystallographic phase, a decagonal phase. The decagonal phase is another example of quasicrystal: It has a noncrystallographic point group (10/m or lO/mmm) together with long-range orientational order and onedimensional translational symmetry. The decagonal phase is an intermediate phase between an icosahedral phase and a crystal both from the symmetry and from the solidification condition points of view.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 58 , 1985 , 237
Copyright
Copyright © Materials Research Society 1986

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References

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