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Information × Registration Number 0223U005168, 0120U103480 , R & D reports Title Experimental research and computer modeling of physicochemical processes in lava-like fuel-containing materials of the NSC-SO complex popup.stage_title Head Habielkov Serhii V., Доктор фізико-математичних наук Registration Date 16-12-2023 Organization Institute for Safety Problems of Nuclear Power Plants of the National Academy of Sciences of Ukraine popup.description2  The phase composition of LFCM polychrome ceramics was investigated by X-ray phase analysis. The presence of magnesium zippeite Mg(H2O)3.5[(UO2)2(SO4)O2] was established for the first time. The presence of uranium oxide UО2.34 was confirmed. It was established that during the stay at the "Shelter" facility after the accident, the uranium oxide UО2 of the nuclear fuel oxidized to UО2.34. The main part of the uranium oxide, which was in the inclusions in LFCM, during its stay in the "Shelter" facility, turned into magnesium zippeite Mg(H2O)3.5[(UO2)2(SO4)O2]. Silicon oxide SiO2 (cristobalite), magnesium calcium silicate CaMgSi2O6, and magnesium silicate MgSiO3 were formed during the crystallization of the glass phase. This process probably began during the cooling of the lava during the accident and continued under the conditions of storage in the "Shelter" facility. Aluminum sulfate hydrate Al2.967H6K0.805Na0.132O14.063S2 and iron sulfate hydrate FeSO4·H2O were obtained after the accident as a result of interaction with water. Based on known polarization potentials of interparticle interaction between ions in complexes and molecules, a similar potential for the interaction of oxygen and uranium ions in uranium dioxide was constructed in an analytical form. The experience of conducting electrochemical processes in the pore space of LFCM has been accumulated. Qualitative spectroscopic analysis of electrolyte samples after electrochemical treatment of LFCM samples was carried out. The content of americium in an electrolyte sample depends on the electrolyte (and its properties) and on the amount of the type of charge that is transferred between the electrodes. Product Description popup.authors Zhyganiuk Igor Viktorovych Skorbun Anatolii D. popup.nrat_date 2023-12-16 Close