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Assessment of Nepheline Precipitation in Nuclear Waste Glass Via Thermochemical Modeling

Published online by Cambridge University Press:  10 February 2011

T. M. Besmann ,
K. E. Spear  and
E. C. Beahm
T. M. Besmann
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, TN 37831-6063, tmb@ornl.gov
K. E. Spear
Affiliation:
Materials Science and Engineering Department, Pennsylvania State University, University Park, PA 16802-5005
E. C. Beahm
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, TN 37831-6063
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Abstract

A thermochemical representation of the Na-Al-Si-B-O system relevant for nuclear waste glass has been developed based on the associate species approach for the glass solution phase. Thermochemical data were assessed and associate species data determined for binary and ternary subsystems in the Na2O-AI2O3-B2O3-SiO2 system. Computed binary and ternary phase diagrams were compared to published diagrams during this process, with adjustments in data made as necessary to obtain consistent thermodynamic values. The resulting representation for the four oxide system was used to help understand the problem of nepheline precipitation in certain waste glass formulations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 608: Symposium QQ – Scientific Basis for Nuclear Waste Management XXIII , 1999 , 715
Copyright
Copyright © Materials Research Society 2000

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References

REFERENCES

1 Li, H., Vienna, J. D., Hrma, P., Smith, D. E., and Schweiger, M. J. in Scientific Basis for Nuclear Waste Management XX, edited by Gray, W. J. and Triay, I. R. (Mater. Res. Soc. Proc. 465, Pittsburgh, PA 1997), p. 261–276.Google Scholar
2 Hastie, J.W. and Bonnell, D.W., High Temp. Sci. 19, p. 275 (1985).Google Scholar
3 Hastie, J.W., Pure and Appl. Chem. 56, p. 1583 (1984).Google Scholar
4 Hastie, J.W., Plante, E.R., and Bonnell, D.W., Vaporization of Simulated Nuclear Waste Glass, NBSIR 83-2731, NIST, Gaithersburg, MD (1983).Google Scholar
5 Bonnell, D.W. and Hastie, J.W., High Temp. Sci. 26, p. 313 (1990).Google Scholar
6 Pelton, A.D. and Blander, M., Met. Trans. B, 17B, p. 805 (1986).Google Scholar
7 Blander, M. and Pelton, A.D., Geochim. Cosmochim. Acta, 51, p. 85 (1987).Google Scholar
8 Pelton, A. D., Pure and Applied Chem. 69(11), p. 2245 (1997).Google Scholar
9 Eriksson, G. and Hack, K., Met. Trans B 21B, p. 1,013 (1990).Google Scholar
10 Spear, K. E., Besmann, T. M., and Beahm, E. C., MRS Bulletin 24(4), p. 37 (1999).Google Scholar
11 Phase Diagrams for Ceramists, Volumes 1–12, (1964-1996) The American Ceramic Society, Westerville, OH.Google Scholar
12 McHale, A. E. and Roth, R. S., Phase Equilibrium Diagrams, Vol. XII, American Ceramic Society, Columbus, OH, 1996, p. 172.Google Scholar