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Chemical Durability Study of Synroc-C Ceramics Produced byThrough-Melting Method

Published online by Cambridge University Press:  03 September 2012

A. V. Kudrin ,
B. S. Nikonov  and
S. V. Stefanovsky
A. V. Kudrin
Affiliation:
Institute of Geology of Ore Deposits RAS. 109017 Staromonetnii 35, Moscow, Russia
B. S. Nikonov
Affiliation:
Institute of Geology of Ore Deposits RAS. 109017 Staromonetnii 35, Moscow, Russia
S. V. Stefanovsky
Affiliation:
SIA”Radon” 119121, 7-th Rostovskii per., 2/14, Moscow, Russia
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Abstract

An interaction between Synroc-C samples prepared by inductive melting in acold crucible and deionized water was investigated at room temperature, 100and 200 °C. The leachability of powdered specimens with grainsize 0.10–0.15mm was determined by repeated static tests with regular replacement ofleachant. The experimental data showed that the most leachable elements arethe alkali, alkaline earths and molybdenum. The matrix elements such astitanium, zirconium, and rare earths as well are very leach resistant.Comparison of the calculated leach rates of components with reference dataon leaching of alternative materials showed that cesium leachability fromthe studied specimens are close to borosilicate glass, but leaching behaviorof other components is comparable to leachability from Synroc-C prepared byhot-pressing.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 465: Symposium II – Scienfific Basis for Nuclear Waste Management XX , 1996 , 417
Copyright
Copyright © Materials Research Society 1997

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References

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