Hostname: page-component-745bb68f8f-b6zl4 Total loading time: 0 Render date: 2025-01-12T05:48:04.419Z Has data issue: false hasContentIssue false
  • English
  • Français

Microstructure and Chemistry of an Aluminophosphate Glass Waste Form under Electron Beam Irradiation

Published online by Cambridge University Press:  01 February 2011

K. Sun ,
L. M. Wang  and
R. C. Ewing
K. Sun
Affiliation:
Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, Michigan 48109, USA
L. M. Wang
Affiliation:
Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, Michigan 48109, USA
R. C. Ewing
Affiliation:
Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, Michigan 48109, USA
Get access

Abstract

An alkali-containing (mainly sodium) aluminophosphate glass waste form was studied by analytical electron microscopy. Bright-field imaging showed that small bubbles formed under the electron irradiation even at a low electron dose (8×1022e/m2). These bubbles grew with the increase of the electron dose and were finally released at the surface of the sample. At the same time alkali elements were also lost under irradiation. At an electron dose of about 2.2×1026e/m2 (6.6×1011Gy), all the bubbles were released and no bubbles were formed with further irradiation. The glass was finally transformed to a pure aluminophosphate glass. Further irradiation resulted in the phase separation between the Al-rich and the P-rich phases. The electron irradiation damage effects on the aluminophosphate glass are compared to those observed in iron phosphate glasses.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 807: Symposium Scientific Basis for Nuclear Waste Management XXVII , 2003 , 121
Copyright
Copyright © Materials Research Society 2004

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. Marshall, K. M., and Mesko, M. G., Spent nuclear fuel vitrification study (U), WSRC-TR-96–0313, Westinghouse Savannah River, Savannah River Site, Aiken, SC, 1996.Google Scholar
2. Ewing, R. C., Mater. Tech. 16 (2001) 30.Google Scholar
3. Weber, W. J., Ewing, R. C., Austen Angell, C., Arnold, G. W., Cormack, A. N., Delaye, J. M., Griscom, D. L., Hobbs, L. W., Navrotsky, A., Price, D. L., Marshall Stoneham, A., and Weinberg, M. C., J. Mater. Res. 12 (1997) 1946.Google Scholar
4. Marasinghe, G. K., Karabulut, M., Ray, C. S., Day, D. E., Shumsky, M. G., Yelon, W. B., Booth, C. H., Allen, P. G., and Shuh, D. K., J. Non-Cryst. Solids 222, 144 (1997).Google Scholar
5. Yu, X. Y., Day, D. E., Long, G. J., Brow, R. K., J. Non-Cryst. Solids 25, 21 (1997).Google Scholar
6. Pivac, B., Mogus-Milankovic, A., and Day, D. E., J. Non-Crystal. Solids 226, 41 (1998).Google Scholar
7. Mesko, M. G., and Day, D. E., J. Non-Cryst. Solids 273 (1999) 27.Google Scholar
8. Kreidl, N. J., Weyl, W. A., J. Am Ceram. Soc. 24 (1941) 372.Google Scholar
9. Sales, B. C., and Boatner, L. A., Mater. Lett. 2 (1984) 301.Google Scholar
10. Brow, R. K., J. Am. Ceram. Soc. 76 (1993) 913.Google Scholar
11. Egan, J. M., Wenslow, R. M., and Mueller, K. T., J. Non-Cryst. Solids 261 (2000) 115.Google Scholar
12. Nishida, T., Maki, K., J. Radioanal. Nucl. Chem. 242 (1999) 557.Google Scholar
13. Egerton, R. F., Electron Energy Loss Spectroscopy in the Electron Microscope, 2nd, (Plenum: New York, 1996.).Google Scholar
14. Mory, C., and Colliex, C., Ultramicroscopy 28 (1989) 339.Google Scholar
15. Sun, K., Wang, L. M., and Ewing, R. C., Mater. Res. Soc. 2002 Fall Meeting, Boston, MA, December 2–6, 2002.Google Scholar
16. Hall, A. R., Dalton, J. T., Hudson, B., and Marples, J. A. C., Management of Radioactive Wastes from the Nuclear Fuel Cycle, Vol. II, IAEA-SM-207 (International Atomic Energy Agency, Vienna), 1976, p. 3 Google Scholar
17. DaNatale, J. F., and Howitt, D. G., Nucl. Instr. & Meth. B1 (1984) 489.Google Scholar
18. Miotello, A., Cinque, G., Mazzoldi, P., and Pantano, C. G., Phys. Rev. B43 (1991) 3831.Google Scholar
19. Madge, S. V., Alexander, D. T. L., and Greer, A. L., J. Non-Cryst. Solids, 317 (2003) 23.Google Scholar
20. Kelton, K. F., Croat, T. K., Gangopadhyay, A. K., Xing, L. Q., Greer, A. L., Weyland, W., Li, X., and Rajan, K., J. Non-Cryst. Solids, 317 (2003) 71.Google Scholar
21. Gu, Binxi, Ph. D Thesis, University of Michigan, 2001.Google Scholar
22. Blanford, C. F., and Carter, C. B., Microsc. Microanal. 9 (2003) 245.Google Scholar