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In-Situ Time-Resolved X-Ray Studies of Eutectic Crystallization in Amorphous Fe1−xBx and Co1−xZrx

Published online by Cambridge University Press:  21 February 2011

Henry E. Fischer ,
S. Brauer ,
M. Sutton ,
J. Ström-Olsen ,
A. Zaluska ,
G. B. Stephenson  and
Uwe Koster
Henry E. Fischer
Affiliation:
Centre for the Physics of Materials and the Department of Physics, McGill University, 3600 University Street, Montreal, PQ, H3A2T8, Canada
S. Brauer
Affiliation:
Centre for the Physics of Materials and the Department of Physics, McGill University, 3600 University Street, Montreal, PQ, H3A2T8, Canada
M. Sutton
Affiliation:
Centre for the Physics of Materials and the Department of Physics, McGill University, 3600 University Street, Montreal, PQ, H3A2T8, Canada
J. Ström-Olsen
Affiliation:
Centre for the Physics of Materials and the Department of Physics, McGill University, 3600 University Street, Montreal, PQ, H3A2T8, Canada
A. Zaluska
Affiliation:
Centre for the Physics of Materials and the Department of Physics, McGill University, 3600 University Street, Montreal, PQ, H3A2T8, Canada
G. B. Stephenson
Affiliation:
IBM Research Division, T. J. Watson Research Center, Yorktown Heights, NY 10598
Uwe Koster
Affiliation:
Department of Chemical Engineering, Universität Dortmund, D-4600, F.R., Germany
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Abstract

Using a millisecond time-resolved x-ray scattering technique at the National Synchrotron Light Source, we have simultaneously obtained in situ both large-angle (LAXS) and small-angle (SAXS) diffraction patterns for isothermal crystallization of amorphous Fe1−xBx (0.16 < x < 0.21) and Co1−xZrx (0.08 < x < 0.11). The large-angle x-ray data are analyzed to determine which of the two crystalline products nucleate first in each compound, and also to assess the evidence for eutectic growth as shown by a time-independent ratio of volume fractions of these product phases. The small-angle data give the length scales of the eutectic structure as well as information about its time evolution. Combining our x-ray results with TEM studies, we examine the effects of changes in temperature and composition on the structural evolution of both the amorphous and crystalline phases.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 237: Symposium Ca – Interface Dynamics and Growth , 1991 , 159
Copyright
Copyright © Materials Research Society 1992

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References

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