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Processing and Characterization of Glass Composites for ASH Immobilization

Published online by Cambridge University Press:  03 September 2012

I. A. Sobolev ,
M. I. Ojovan ,
O. K. Karlina ,
S. V. Stefanovsky  and
V. E. Galtsev
I. A. Sobolev
Affiliation:
Moscow Scientific and Industrial Association “Radon”, The 7-th Rostovsky Lane, 2/14, Moscow, 119121, Russia, Tel. (7 095)248 1680, fax(7095)248 1941, E-mail: [email protected]
M. I. Ojovan
Affiliation:
Moscow Scientific and Industrial Association “Radon”, The 7-th Rostovsky Lane, 2/14, Moscow, 119121, Russia, Tel. (7 095)248 1680, fax(7095)248 1941, E-mail: [email protected]
O. K. Karlina
Affiliation:
Moscow Scientific and Industrial Association “Radon”, The 7-th Rostovsky Lane, 2/14, Moscow, 119121, Russia, Tel. (7 095)248 1680, fax(7095)248 1941, E-mail: [email protected]
S. V. Stefanovsky
Affiliation:
Moscow Scientific and Industrial Association “Radon”, The 7-th Rostovsky Lane, 2/14, Moscow, 119121, Russia, Tel. (7 095)248 1680, fax(7095)248 1941, E-mail: [email protected]
V. E. Galtsev
Affiliation:
Moscow Scientific and Industrial Association “Radon”, The 7-th Rostovsky Lane, 2/14, Moscow, 119121, Russia, Tel. (7 095)248 1680, fax(7095)248 1941, E-mail: [email protected]
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Abstract

Induction melting by using a cold crucible is a suitable technology for the immobilisation of ash residues after incineration of solid radioactive waste. We investigated the possibility of using glass composites produced by stirring the ash into meltedglass. Glass composites containing 15 -40 wt. % of ash were obtained in both laboratory and bench scale units. Infrared spectroscopy, electronic paramagnetic resonance, X-ray diffractometry, TEM and SEM analyses were applied in order to characterise the structure of the glass composites obtained. The glass composites consisted of a relatively homogeneous glass matrix with embedded polycrystalline aggregates. The fraction of aggregates increases when the fraction of ash rises. The isothermal curing of composites at 1100 °C leads to dissolution of the ash components into the melt as well as to their inclusion into the glass structure, according to the analysis of the spectra obtained.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 465: Symposium II – Scienfific Basis for Nuclear Waste Management XX , 1996 , 117
Copyright
Copyright © Materials Research Society 1997

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References

REFERENCES

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