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Preliminary Studies of the Disposition of Cesium in a Glass-Bonded Sodalite Waste form

Published online by Cambridge University Press:  21 March 2011

Marsha J. Lambregts  and
Steven M. Frank
Marsha J. Lambregts
Affiliation:
Argonne National Laboratory-West, PO Box 2528, Idaho Falls, ID 83401
Steven M. Frank
Affiliation:
Argonne National Laboratory-West, PO Box 2528, Idaho Falls, ID 83401
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Abstract

Argonne National Laboratory has developed an electrometallurgical treatment for DOE spent metallic nuclear fuel. Fission products are immobilized in a durable glass bonded sodalite ceramic waste form (CWF) suitable for long term storage in a geological repository. Cesium is estimated to be in the waste form at approximately 0.1 wt.%. The exact disposition of cesium was uncertain and it was believed to be uniformly distributed throughout the waste form. A correlation of X-ray diffractometry (XRD), electron microscopy (EM), and nuclear magnetic resonance spectroscopy (NMR) performed on surrogate ceramic waste forms with high cesium loadings found a high cesium content in the glass phase and in several non-sodalite aluminosilicate phases. Cesium was not detected in the sodalite phase.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 713: Symposium JJ – Scientific Basis for Nuclear Waste Management XXV , 2002 , JJ11.21
Copyright
Copyright © Materials Research Society 2002

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