Chemical durability study of Synroc-C ceramics produced by through-melting method

Conference · Tue Dec 30 23:00:00 EST 1997

OSTI ID:572098

Kudrin, A V; Nikonov, B S ^[1]; Stefanovsky, S V ^[2]

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1. Inst. of Geology of Ore Deposits, Moscow (Russian Federation)
2. SIA Radon, Moscow (Russian Federation)

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

• OSTI ID: 572098
• Report Number(s): CONF-961202--
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
36 MATERIALS SCIENCE
ALKALI METALS
ALKALINE EARTH METALS
CESIUM
CHEMICAL COMPOSITION
CORROSION RESISTANCE
LEACHING
MELTING
MOLYBDENUM
SYNROC PROCESS
SYNTHETIC ROCKS
WASTE FORMS