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Structure Analysis of Ni-Silicides Formed in Lateral Diffusion Couples

Published online by Cambridge University Press:  26 February 2011

S. H. Chen ,
J. C. Barbour ,
L. R. Zheng ,
C. B. Carter  and
J. W. Mayer
S. H. Chen
Affiliation:
Department of Materials Science and Engineering Cornell University, Ithaca, NY 14853
J. C. Barbour
Affiliation:
Department of Materials Science and Engineering Cornell University, Ithaca, NY 14853
L. R. Zheng
Affiliation:
Department of Materials Science and Engineering Cornell University, Ithaca, NY 14853
C. B. Carter
Affiliation:
Department of Materials Science and Engineering Cornell University, Ithaca, NY 14853
J. W. Mayer
Affiliation:
Department of Materials Science and Engineering Cornell University, Ithaca, NY 14853
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Abstract

The microstructures of the silicide Ni5Si2, which formed in self-supporting Ni-Si lateral-diffusion couples has been studied using high-resolution electron microscopy. Two different polymorphs (or polytypes) for Ni5Si2 have been observed. The actual composition of one polytype is confirmed to be Ni31Si12, while the other one has not yet been identified. Variations in the distribution of the two polytypes, as observed in the present study, may account for the composition range of Ni5Si2 in the Ni-Si phase diagram.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 37: Symposium D – Layered Structures, Epitaxy, and Interfaces , 1984 , 635
Copyright
Copyright © Materials Research Society 1985

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References

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