Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-17T20:18:49.696Z Has data issue: false hasContentIssue false
  • English
  • Français

Pyrochlore-Rich Synroc as a Host for Immobilization of Actinides

Published online by Cambridge University Press:  21 March 2011

Jianwen Yang ,
Baolong Tang  and
Shanggeng Luo
Jianwen Yang
Affiliation:
China Institute of Atomic Energy,P.O.Box 275(1), Beijing 102413
Baolong Tang
Affiliation:
China Institute of Atomic Energy,P.O.Box 275(1), Beijing 102413
Shanggeng Luo
Affiliation:
China Institute of Atomic Energy,P.O.Box 275(1), Beijing 102413 Email:[email protected]
Get access

Abstract

Six different formulations of pyrochlore-rich synroc waste forms were designed to contain 32-50wt% simulated actinides. Their physical properties were determined. Phase identification was carried out by using X-ray diffractometer (XRD), and backscattered electron image (BEI) in scanning electron microscopy (SEM). Phase microanalyses were carried out using energy dispersive spectrometer (EDS) in SEM. Their durability properties were determined by PCT leach tests, the leachate was analyzed by using inductive coupled plasma mass spectroscopy (ICP/MS) and atomic absorption spectroscopy (AAS).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 663: Symposium – Scientific Basis for Nuclear Waste management XXIV , 2000 , 333
Copyright
Copyright © Materials Research Society 2001

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Lumpkin, Gregory R. and Ewing, Rodney C., Alpha-decay Damage in Minerals of the Pyrochlore Group, Phys. Chem. Minerals 16(2), 20(1988)Google Scholar
2. Lumpking, G.R., Hart, K.P., Mcglinn, P.J. and Payne, T.E., Retention of Actinides in Natural Pyrochlores and Zirconolites, Radiochimica. Acta., 66/67,469(1994)Google Scholar
3. Vance, E.R., Synroc: A Suitable Waste Form for Actinides, MRS Bull., XIX(12), 28(1994)Google Scholar
4. Vance, E.R., Begg, B.D., Day, R.A. and Ball, C.J., Zirconolite-rich ceramic for actinide waste, Mater. Res. Soc. Symp. Proc., 353, 767 (1995)Google Scholar
5. Luo, Shanggeng, Zhu, Xinzhang, Tang, Baolong, Actinides containment by using Zirconolite-rich synroc, Proceedings of SPECTRUM'98, International conference on Decommissioning and Decontamination and on Nuclear and Hazardous waste Management, 2, 829 (1998)Google Scholar
6. Li, Liyu, Luo, Shanggeng, Tang, Baolong and Wang, Dexi, Immobilization of Sodium-Bearing High-level Radioactive Waste in Synroc Containing (Na0.5Nd0.5)TiO3-Type Perovskite, J.Am.Ceram.Soc., 80(1), 250(1997)Google Scholar
7. Yang, J., Zhu, X., Tang, B., Luo, S., Incoporation of Actinides in Zirconolite-rich, Pyrochlore-rich and Perovskite-rich Synroc, Environmental Issues and Waste Management Technologies in the Ceramic and Nuclear Industries V, edited by Chandler, Gregory T. and Feng, Xiangdong, Ceramic Transactions, Vol 107, pp. 577–583(2000)Google Scholar