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Diffuse Neutron Scattering from Excess Oxygen in UO2.13

Published online by Cambridge University Press:  21 February 2011

J.P. Goff ,
M.T. Hutchings ,
K. Brown ,
W. Hayes  and
H. Godfrin
J.P. Goff
Affiliation:
Materials Physics & Metallurgy Division, Harwell Laboratory, Didcot, OX11 ORA, UK
M.T. Hutchings
Affiliation:
Materials Physics & Metallurgy Division, Harwell Laboratory, Didcot, OX11 ORA, UK
K. Brown
Affiliation:
Materials Physics & Metallurgy Division, Harwell Laboratory, Didcot, OX11 ORA, UK
W. Hayes
Affiliation:
The Clarendon Laboratory, Parks Road, Oxford, OX1 3PU, UK
H. Godfrin
Affiliation:
Institut Laue Langevin, BP156X, Grenoble 38042, France
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Abstract

Coherent diffuse neutron scattering from single crystal UO2.13 has been investigated at temperatures up to 2100K. Above 850K the crystal as a single phase and the excess anions give rise to a characteristic pattern of elastic diffuse scattering. This can be interpreted in terms of uncorrelated simple clusters of defective anions first postulated by Willis. The intensity distribution changes with temperature increase but no quasielastic scattering has yet been resolved. On cooling to 293K a strong hysteresis is exhibited.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 166: Symposium J – Neutron Scattering for Materials Science , 1989 , 373
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

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