Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-18T08:49:28.720Z Has data issue: false hasContentIssue false
  • English
  • Français

Surface Layer Formation on a Nuclear Waste Glass

Published online by Cambridge University Press:  21 February 2011

Werner Lutze ,
GÜnter Malow ,
Harald Rabe  and
Thomas J. Headley
Werner Lutze
Affiliation:
Hahn-Meitner-Institut für Kernforschung Berlin, Glienicker Strasse 100, D 1000 Berlin 39, Germany,
GÜnter Malow
Affiliation:
Hahn-Meitner-Institut für Kernforschung Berlin, Glienicker Strasse 100, D 1000 Berlin 39, Germany,
Harald Rabe
Affiliation:
Hahn-Meitner-Institut für Kernforschung Berlin, Glienicker Strasse 100, D 1000 Berlin 39, Germany,
Thomas J. Headley
Affiliation:
Sandia National Laboratories, Albuquerque, New Mexico, 87185, USA
Get access

Extract

Surface layers are a common feature of leached surfaces of borosilicate waste glasses. Layers are also observed upon weathering of volcanic glasses[l] and of silicate minerals[2]. The question of whether these layers can protect the glass against further attack by decreasing the leach rate is stïll a subject of controversy[3]. Both in geochemical work[4] and in work on waste forms [5,6], surface layers are attributed a protective function, and the stability of leached, million years old volcanic glasses[1] may be due to the presence of palagonite, a thin (≤100 μm) alteration layer, which forms in a few years but does not seem to increase in thickness after this time. The present study investigates the effects of layer formation on leaching kinetics of a borosilicate waste glass containing 20 wt.% LWR-type simulated waste oxides.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 15: Symposium D – Scientific Basis for Nuclear Waste Management VI , 1982 , 37
Copyright
Copyright © Materials Research Society 1983

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. Allen, C. C. (1982) Scientific Basis for Nuclear Waste Management, Vol. 11, Lutze, W. ed, Elsevier-North Holland, New York, pp. 37–44.Google Scholar
2. Helgeson, H. C. (1971) Geochimica et Cosmochimica Acta, 36, pp. 1067–1070.CrossRefGoogle Scholar
3. Petrovic, R. (1976) Geochimica et Cosmochimica Acta, 40, pp. 1509–1521.CrossRefGoogle Scholar
4. Claassen, H. C. (1981) Nuclear and Chemical Waste Management, 2, pp. 307–313.CrossRefGoogle Scholar
5. Wicks, G. G. and Wallace, R. M. (in press) Journal of Nuclear Materials.Google Scholar
6. Malow, G. (1982) Scientific Basis for Nuclear Waste Management, Vol. 11, Lutze, W. ed., Elsevier-North Holland, New York, pp. 25–36.Google Scholar
7. Marples, J. A. C., Lutze, W. and Sombret, C. (1980) Radioactive Waste Management and Disposal, Simon, R. and Orlowski, S. ed., Harwood Academic Publishers, Brussels and Luxembourg, pp. 307–323.Google Scholar
8. Grambow, B. (1982) Scientific Basis for Nuclear Waste Management, Vol. 11, Lutze, W. ed., Elsevier-North Holland, New York, pp. 93–102.Google Scholar
9. Lindsay, W. L. (1979) Chemical Equilibria in Soils, Wiley and Sons, New York, Chichester, Brisbane, Toronto, pp. 57–64.Google Scholar
10. Scholze, H. Conradt, R., Engelke, H. and Roggendorf, H. (1982) Scientific Basis for Nuclear Waste Management, Vol. 11, Lutze, W. ed., Elsevier-North Holland, New York, pp. 173–180.Google Scholar