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Stefanovsky S.V.,State Unitary Enterprise of the City of Moscow | Ptashkin A.G.,State Unitary Enterprise of the City of Moscow | Knyazev O.A.,State Unitary Enterprise of the City of Moscow | Stefanovskaya O.I.,State Unitary Enterprise of the City of Moscow | And 3 more authors.
Inorganic Materials: Applied Research | Year: 2011

Parameters of the process of vitrification of simulator of the slurry of high-level Na-, Fe, and Al- containing waste (made in the plant in Savannah River, USA) in the presence of lithium borosilicate frits by the method of induction melting in a cold crucible are determined. With the help of X-ray diffraction analysis, optical and electron microscopy, and IR spectroscopy, phase composition of the glassy material obtained is investigated. All the samples cut from different parts of the ingot are composed of U-containing glassy phase and the crystals of spinel. A tendency to enrichment of the lower zone of the ingot with heavier ions of tran- sition and heavy metals as well as its depletion with oxides of lighter elements (Na, Cs, Ca, Al, Si) is observed. © 2011 Pleiades Publishing, Ltd. Source

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