Physicochemical transformations in multicomponent melts containing uranium, zirconium, and iron oxides and calcium silicates and aluminates

The properties and crystallization nature of melts of the U 4+ –U 6+ –Zr 4+ –Fe 2+ –Fe 3+ –Ca 2+ –Si 4+ –Al 3+ –O 2– system were studied. It was found that the main factors changing the physicochemical characteristics of the melt are the concentration and valence state of uranium and the concentrati...

Full description

Saved in:
Bibliographic Details
Published in:Russian journal of applied chemistry 2017-06, Vol.90 (6), p.838-845
Main Authors: Udalov, Yu. P., Pozniak, I. V., Sazavsky, P., Kiselova, M., Shrank, I., Streich, M., Shubrt, I., Bakardieva, S., Tirpekl, V.
Format: Article
Language:English
Subjects:
Aluminates
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Crystallization
Disintegration
Industrial Chemistry/Chemical Engineering
Inorganic Synthesis and Industrial Inorganic Chemistry
Iron oxides
Lime
Melts (crystal growth)
Nuclear electric power generation
Nuclear reactors
Silicates
Uranium
Zirconium oxides
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The properties and crystallization nature of melts of the U 4+ –U 6+ –Zr 4+ –Fe 2+ –Fe 3+ –Ca 2+ –Si 4+ –Al 3+ –O 2– system were studied. It was found that the main factors changing the physicochemical characteristics of the melt are the concentration and valence state of uranium and the concentrations of iron oxide and silicon oxide. The results obtained in the analysis of the physicochemical properties of the multicomponent melt can be used in nuclear power engineering to preclude disintegration of a WWER type nuclear reactor in the course of a hypothetical severe reactor accident.
ISSN:1070-4272
1608-3296
DOI:10.1134/S1070427217060027