Skip to main content Accesibility Help
×
×
Home

Structural Analysis of a Completely Amorphous 238Pu-Doped Zircon by Neutron Diffraction

  • Jeffrey A. Fortner (a1), Yaspal Badyal (a2), David C. L. Price (a2), John M. Hanchar (a2) and William J. Weber (a3)...
Abstract

The structure of a completely amorphous zircon was determined by time-of-flight neutron diffraction at Argonne's Intense Pulsed Neutron Source (IPNS). The sample of metamict zircon (ZrSiO4), initially doped to 8.85 weight percent 238pu, had been completely amorphized by alpha-recoil damage since its synthesis in 1981 at the Pacific Northwest National Laboratory (PNNL). The measured diffraction structure factor, S(Q), indicated a completely amorphous sample, with no signs of residual zircon microcrystallinity. The pair distribution function obtained indicated that the structure was that of an oxide glass, retaining the Si–O, Zr–O, and O–O bond lengths of crystalline zircon.

Copyright
References
Hide All
1. Bowring, S. A., Williams, I. S., and Compston, W., Geology (Boulder) 17 (11), 971975 (1989).
2. Burakov, B. E., Anderson, E. B., Rovsha, V. S., Ushakov, S. V., Ewing, R. C., Lutze, W., and Weber, W. J., Mater. Res. Soc. Symp. Proc. 412, 3340 (1996).
3. Weber, W. J., Ewing, R. C., and Lutze, W., Mater. Res. Soc. Symp. Proc. 412, 2532 (1996).
4. Weber, W. J., Ewing, R. C., and Meldrum, A., J. Nucl. Mater. 250, 147155 (1997).
5. Weber, W. J., J. Mater. Res. 5 (11), 26872697 (1990); W. J. Weber, R. C. Ewing, and L.-M. Wang, J. Mater. Res. 9 (3) 668-698 (1994).
6. Farges, F., Phys. Chem. Minerals 20 504 (1994).
7. McLaren, A. C., Gerald, J. D. Fitz, and Williams, I. S., Geochim. Cosmochim. Acta 58 (2), 9931005 (1994).
8. Ellsworth, S., Navrotsky, A., and Ewing, R. S., Physics and Chemistry of Minerals 21 (3), 146149 (1994).
9. A pyrochlore/zirconolite composite ceramic is the currently favored material for this purpose; DOE, Record of Decision for the Storage and Disposition of Weapons-Useable Fissile Materials Final Programmatic Environmental Impact Statement 62 FR3014, Office of the Federal Register, Washington D. C., January 14, 1997.
10. Speer, J. A., “Zircon,” Orthosiliscates: Reviews in Minerology, Volume 5. Ribbe, P. H., ed., pp. 67112. Mineralogical Society of America, Washington D. C. (1980).
11. Ellison, A. J. G. et al. , J. Neutron Research 1 (4), 6170 (1993); D. J. Mikkelson, A. J. G. Ellison, D. L. Price, T. G. Worlton, NucI. Instrum. Methods, 354 112-120 (1995).
12. Smith, D. K. and Newkirk, H. W., Acta Cryst. 18 983991 (1965).
13. Hess, N. J., Weber, W. J., and Conradson, S. D., J. Nucl. Mater. 254 (2,3) 175184 (1998).
14. Hess, N. J., Weber, W. J., and Conradson, S. D., J. Alloys and Compounds, 271–273, 240243 (1998).
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
  • URL: /core/journals/mrs-online-proceedings-library-archive
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed