Immobilization of Strontium Waste into Synroc by the Combustion Synthesis

Rui Zhu Zhang; Jie Yang; Yong Li; Da Kao Yan; Wan Shan Su; Zhi Meng Guo

doi:10.4028/www.scientific.net/AMR.239-242.1109

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 239-242Immobilization of Strontium Waste into Synroc by...

Immobilization of Strontium Waste into Synroc by the Combustion Synthesis

Abstract:

This paper researched the fabrication of perovskite (CaTiO₃) synroc by combustion synthesis (CS) and the characterization of the products. This synthesis process is simpler, the fabricated synroc can immobilize waste loading up to wt( 36%) SrO with satisfied physical properties (density>4.2 g•cm^-3, open porosity<0.2%). The microstructure analyses by XRD and SEM/TEM show that the major phase is perovskite which well agrees with the design. It proves that CS offer a suitable Sr-waste into perovskite (CaTiO₃) synroc which is favorable for geological disposal.

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Periodical:

Advanced Materials Research (Volumes 239-242)

Pages:

1109-1113

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.239-242.1109

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Online since:

May 2011

Authors:

Rui Zhu Zhang, Jie Yang, Yong Li, Da Kao Yan, Wan Shan Su, Zhi Meng Guo

Keywords:

Combustion Synthesis, High-Level Radioactive Waste, Immobilisation, Perovskite

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