Immobilization of Radioactive Wastes into Perovskite Synrock by the SHS Method

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This paper researched the fabrication of perovskite synrock by self-propagating high temperature synthesis (SHS) and the characterization of the products. This synthesis process is simpler, the fabricated synrock can immobilize waste loading up to 35wt% SrO with satisfied physical properties (density>4.2g•cm-3, open porosity<0.2%, Leach rate<1.0 g•m-2•d-1). The structure analyses by XRD and SEM/EDS show that the major phase is perovskite which well agrees with the design. It proves that SHS offer a suitable Sr-waste synroc which is favorable for geological disposal.

Info:

Periodical:

Materials Science Forum (Volumes 475-479)

Main Theme:

Edited by:

Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie

Pages:

1627-1630

DOI:

10.4028/www.scientific.net/MSF.475-479.1627

Citation:

R. Z. Zhang et al., "Immobilization of Radioactive Wastes into Perovskite Synrock by the SHS Method", Materials Science Forum, Vols. 475-479, pp. 1627-1630, 2005

Online since:

January 2005

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$35.00

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