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Diffraction Effects from [111] Twist Boundaries in Gold

Published online by Cambridge University Press:  26 February 2011

I. Majid ,
D. Wang  and
P. D Bristowe
I. Majid
Affiliation:
Department of Materials Science and EngineeringMassachusetts Institute of Technology Cambridge, MA 02139
D. Wang
Affiliation:
Department of Materials Science and EngineeringMassachusetts Institute of Technology Cambridge, MA 02139
P. D Bristowe
Affiliation:
Department of Materials Science and EngineeringMassachusetts Institute of Technology Cambridge, MA 02139
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Abstract

The structural characteristics of [111] twist boundaries in gold are investigated using a combination of x-ray diffraction and computer modeling techniques. Comparison of the measured scattering effects with those generated from EAM computer models reveals that the [111] boundary displacement field is weak, rotational in form and centered on ‘O’ lattice sites. Furthermore, the measured intensities of the strong ‘O’ lattice reflections decrease smoothly with increasing boundary angle up to 30°, as calculated from the model. The effect of double positioning on the diffraction pattern and the structural analysis is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 209: Symposium K – Defects in Materials , 1990 , 47
Copyright
Copyright © Materials Research Society 1991

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References

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