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Sans Measurement of Deuterium-Dislocation Correlation in Palladium

Published online by Cambridge University Press:  21 February 2011

Brent J. Heuser ,
G.C. Summerfield ,
J.S. King  and
J.E. Epperson
Brent J. Heuser
Affiliation:
University of Michigan, Ann Arbor, MI
G.C. Summerfield
Affiliation:
University of Michigan, Ann Arbor, MI
J.S. King
Affiliation:
University of Michigan, Ann Arbor, MI
J.E. Epperson
Affiliation:
Argonne National Laboratory, Argonne, IL
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Abstract

Small angle neutron scattering (SANS) measurements have been made on deformed polycrystal palladium samples with and without deuterium dissolved in the solution phase (a) at room temperature. Concentrations were held constant during SANS experiments by an equilibrium gas pressure cell. The difference scattering cross section for the same sample with and without deuterium loading has a 1/Q behavior (Q=4Φ/λsinθ/2) at intermediate values of Q. At very low values of Q the dependence is much stronger than 1/Q. The 1/Q behavior is attributed to deuterium trapping close to long dislocation cores forming rod-like scattering structures.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 166: Symposium J – Neutron Scattering for Materials Science , 1989 , 273
Copyright
Copyright © Materials Research Society 1990

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References

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