Alternative Synroc formulations
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Date
2011-02-25
Journal Title
Journal ISSN
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Publisher
Cambridge University Press/Springer Nature
Abstract
Perovskite is the least durable of the resistate minerals comprising Synroc-C and it is desirable to reduce its abundance in Synroc. Kinetic limitations and competition with Csapparently affect the incorporation of Sr into hollandite during hot-pressing at 1200°C/20 MPa so that ~ 10% of perovskite (a value below the percolation limit) is probably an optimum target. Zirconolite-rich Synroc formulations have been prepared for actinide-rich wastes. Background XRD and TEM studies have also been performed to study the crystal-chemical behaviour of Nd (a simulant of trivalent actinides) in zirconolite. Either rare-earth compensated perovskite or freudenbergite in Synroc can evidently be used to immobilise Na-bearing HLW. © 1992 Materials Research Society
Description
Citation on CUP and Springer websites is incorrect. The author SA Moricca is shown as SS Moricca. MRS Online Proceedings were formerly published by Cambridge University Press and are now published by Springer Nature.
Keywords
Synroc process, Hot pressing, Perovskite, Hollandite, Zirconolite, X-ray diffraction, Transmission electron microscopy, Minerals
Citation
Vance, E. R., Smith, K. L., Thorogood, G. J., Begg, B. D., Moricca, S. S., Angel, P. J., Stewart, M. W. A., Blackford, M. G. & Ball, C. J. (1991). Alternative synroc formulations. Paper presented to the 33rd Annual Condensed Matter and Materials Meeting, Wagga Wagga, NSW, 4 - 6 February 2009. In MRS Symposium Proceedings : Scientific Basis for Nuclear Waste Management XV. 257, 235-241. doi:10.1557/PROC-257-235