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Studies of Ordering in Small Particles

Published online by Cambridge University Press:  21 February 2011

U. Herr ,
M. Poilack ,
D.L. Olynick ,
J.M. Gibson  and
R.S. Averback
U. Herr
Affiliation:
University of Illinois at Urbana-Champaign, Urbana, IL61801 Institute of Physics, University of Augsburg, 86135 Augsburg, Germany
M. Poilack
Affiliation:
University of Illinois at Urbana-Champaign, Urbana, IL61801
D.L. Olynick
Affiliation:
University of Illinois at Urbana-Champaign, Urbana, IL61801
J.M. Gibson
Affiliation:
University of Illinois at Urbana-Champaign, Urbana, IL61801
R.S. Averback
Affiliation:
University of Illinois at Urbana-Champaign, Urbana, IL61801
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Abstract

Disordered clusters of the intermetallic compounds Ni3Al and Cu3Au have been produced using a high pressure sputtering technique. The clusters are either embedded in a film or studied, in-situ in an UHV electron microscope. The evolution of the ordered structure upon annealing is studied. Using a scanning transmission electron microscope, electron diffraction is obtained from individual clusters. Partial ordering is observed in Cu3Au clusters which have been annealed below the bulk order-disorder transition temperature. Under the experimental conditions, only clusters with sizes of 10–15 nm or larger show ordering.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 398: Symposium C – Thermodynamics and Kinetics of Phase Transformations , 1995 , 575
Copyright
Copyright © Materials Research Society 1998

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References

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