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X-Ray Study of Interfacial Interactions in Highly Milled Sn-Ge Powders

Published online by Cambridge University Press:  25 February 2011

J.K.D.S. Jayanetti ,
S. M. Heald  and
Z. Tan
J.K.D.S. Jayanetti
Affiliation:
Brookhaven National Laboratory, UptonNY11973
S. M. Heald
Affiliation:
Brookhaven National Laboratory, UptonNY11973
Z. Tan
Affiliation:
Brookhaven National Laboratory, UptonNY11973
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Abstract

We have studied possible structural changes occur ing at the Sn/Ge interface of highly milled Sn/Ge composites. EXAFS and X-ray Diffraction measurements were made on mechanically milled powders having compositions ranging from 20 to SO vol.% Sn. X-ray diffraction measurements indicate the increasing amorphization of Sn as the Sn content is decreased. EXAFS results indicate that this amorphous phase is due to the formation of an a-Sn/Ge alloy. The EXAFS from this alloy did not change significantly at the Sn melting point. X-ray diffraction measurements made at room temperature show a systematic decrease in the intensity of Sn peaks and broadening of Ge peaks with the decreasing Sn content.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 238: Symposium Cb – Structure and Properties of Interfaces in Materials , 1991 , 757
Copyright
Copyright © Materials Research Society 1992

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References

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