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Dislocation motion around loaded notches in ice single crystals

Published online by Cambridge University Press:  10 February 2011

D. Cullen ,
X. Hu ,
I. Baker  and
M. Dudley
D. Cullen
Affiliation:
Thayer School of Eng., Dartmouth College, Hanover, NH 03755
X. Hu
Affiliation:
Thayer School of Eng., Dartmouth College, Hanover, NH 03755
I. Baker
Affiliation:
Thayer School of Eng., Dartmouth College, Hanover, NH 03755
M. Dudley
Affiliation:
Dept. of Materials Science, SUNY at Stony Brook, Stony Brook, NY 11794
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Abstract

Synchrotron X-ray topography has been used to study dislocation behavior around a notch in single crystal ice during in-situ deformation at a constant strain-rate of 1 × 10−8s−1 and a temperature of -8 °C. During deformation a dislocation depleted zone (DDZ) formed above the notch. Modeling the interaction between basal plane dislocation loops and the notch stress field suggested that this DDZ arose from dislocations gliding completely through the specimen.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 590: Symposium R – Applications of Synchrotron Radiation Techniques…V , 1999 , 291
Copyright
Copyright © Materials Research Society 2000

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References

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