Interaction of Oxide Melt with External-Trap Zirconium Dioxide Refractories |
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| Authors: | V N Mineev F A Akopov A A Akopyan B M Barykin L B Borovkova T I Borodina G E Val'yano A S Vlasov E S Lukin S V Onufriev A I Funtikov G P Chernyshov N S Bel'maz O M Traktuev |
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| Affiliation: | (1) ITÉS OIVT RAN, Russia;(2) Belgorod State Technical Academy for Building Materials, Russia;(3) Institute for Nuclear Reactors, Russian Science Center Kurchatov Institute, Russia |
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| Abstract: | The results of an investigation of the interaction of zirconium dioxide refractories – ceramic and concrete with iron oxides – are presented. The investigations showed that starting at 1600 K in an argon atmosphere contact of a mixture of iron oxides with refractories gives rise to erosion of the latter. Under isothermal conditions (2270 K), ceramic with 16% porosity completely absorbs a melt with mass  1/7 of the ceramic mass. The concrete confines the same melt mass with a lower temperature 1870 K and, in the process, unlike the ceramic, it loses strength.The results obtained and the published data were used to analyze the operation of a refractory protective layer of an EPR trap. |
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