Authors & Affiliations
Zagorulko Yu.I., Konovalov M.A., Ilicheva N.S., Vicenko A.S., Solomatin A.E., Ganichev N.S.
A.I. Leypunsky Institute for Physics and Power Engineering, Obninsk, Russia
Zagorulko Yu.I. – Leading Researcher. Contacts: 1, pl. Bondarenko, Obninsk, Kaluga region, Russia, 249033. Tel.: +7 (484) 399-80-84; e-mail:
Konovalov M.A. – Junior Researcher.
Ilicheva N.S. – Senior Researcher.
Vitcenko A.S. – Research Engineer.
Solomatin A.E. – Senior Researcher.
Ganichev N.S. – Head of Laboratory.
Abstract
Thermite reactions, in particulate aluminum thermite ones, are widely applied to produce high-temperature melts used in welding technology, metallurgy and high-temperature media, for modelling corium (melts of nuclear fuel and reactor core structural materials).
Mechanisms of aluminum thermite reactions due to theirs complicated nature still are not established to predict reliably principal technological parameters of melt devices (melt outlet temperature and its composition in dependence on time of the thermite reaction process).
In the article there are considered some experimental results with following objectives.
– Measurements of the aluminum thermite reaction products melt temperature on the outlet of standard melting crucible.
– Effectiveness of the aluminum thermite reaction melt separation in a transport channel on metallic and ceramic phases using hydraulic close principle on the possible mechanism.
– Qualitative observations on the behavior of materials samples: stainless still and tungsten in contact with aluminum thermite reaction products.
– Study on thermite reaction possible mechanism taking place inside of melting crucible basing on analysis of reaction products droplets thrown out of crucible during reaction procession.
Keywords
thermite reaction, melt separation, metal melt, materials samples, temperature, chemical analysis
Article Text (PDF, in Russian)
UDC 621.791.011
Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2022, no. 4, 4:10