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HREm Study of Al-Si Interfaces

Published online by Cambridge University Press:  26 February 2011

Mohammad Shamsuzzoha ,
Pierre A. Deymier  and
David J. Smith
Mohammad Shamsuzzoha
Affiliation:
Department of Materials Science and Engineering, University of Arizona,Tucson, AZ 85721
Pierre A. Deymier
Affiliation:
Department of Materials Science and Engineering, University of Arizona,Tucson, AZ 85721
David J. Smith
Affiliation:
Center for Solid State Science,, Arizona State University, Tempe, AZ 85287
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Abstract

Interfaces between aluminum and silicon in samples prepared by solidification of an Al-Si eutectic liquid have been studied by high-resolution electron microscopy. The Al and Si grains have a common [110] axis with a misorientation between grains of 70.5°, thus aligning the (lll)si plane with the (111)ALplane. In general, theinterfaces have a complex structurewith numerous interfacial dislocations and considerable facetting. The core structurescan be characterized in terms of structural unit models. The nature of the facetting has also been investigated, in particular one facet which lies approximately along the (111)AL, and (l15)si planes and another which lies approximately along the (110)AL and (l14)si planes.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 209: Symposium K – Defects in Materials , 1990 , 649
Copyright
Copyright © Materials Research Society 1991

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References

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