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Secondary Phases on the Surface of Real Vitrified Radioactive Waste Disposed in a Loamy Soil

Published online by Cambridge University Press:  01 February 2011

Natalie V. Ojovan ,
Irene V. Sartceva ,
Alexander S. Barinov ,
Andrew V. Mokhov ,
Michael I. Ojovan  and
Günter Möbus
Natalie V. Ojovan
Affiliation:
Scientific and Industrial Association “Radon”, Moscow, Russia.
Irene V. Sartceva
Affiliation:
Scientific and Industrial Association “Radon”, Moscow, Russia.
Alexander S. Barinov
Affiliation:
Scientific and Industrial Association “Radon”, Moscow, Russia.
Andrew V. Mokhov
Affiliation:
Institute of Geology of Ore Deposits of Russian Academy of Science(IGEM), Moscow, Russia.
Michael I. Ojovan
Affiliation:
Immobilisation Science Laboratory, Department of Engineering Materials, University of Sheffield, UK.
Günter Möbus
Affiliation:
Immobilisation Science Laboratory, Department of Engineering Materials, University of Sheffield, UK.
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Abstract

This work examines secondary phases formed on the surface of radioactive borosilicate glass K-26 during 12 years of testing in the loamy soil. This glass has been produced to immobilise intermediate level operational nuclear power plant (NPP) radioactive waste. An altered layer has been formed at the glass surface that had been contacting with the repository environment. The layer is morphologically following the bulk waste glass. The layer is chemically inhomogeneous and non-uniform in thickness and structure. It contains in addition to the major vitreous phase, alpha quartz, calcite, aluminium hydrochlorides, and molybdenum compounds.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 807: Symposium Scientific Basis for Nuclear Waste Management XXVII , 2003 , 139
Copyright
Copyright © Materials Research Society 2004

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References

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