Abstract
The main task of the research is to analyze the possibility of using tungsten protective coatings in fast nuclear power reactors cooled by a lead. The author uses computational and optimization research methods. A comprehensive analysis of the properties of tungsten, including the properties of thin tungsten coatings, has been carried out. The results obtained make it possible to consider tungsten coatings of structural materials as multifunctional protective coatings. They perform the functions of protecting against corrosion and erosion of structural materials in liquid lead. They increase the thermal conductivity of fuel claddings and contribute to a decrease in the maximum fuel temperature in the nominal and emergency operating modes of the reactor. The only disadvantage of tungsten when used in nuclear technology is associated with a high neutron absorption cross section. This disadvantage can be an advantage in minimizing the void reactivity effect. The necessary neutron balance is ensured by using a coolant based on lead thorium ores and innovative ceramic fuel with the addition of uranium metal nanopowder. The significance of research is determined by the possibility of the transition of nuclear energy to the status of “green” environmentally acceptable and safe energy in the near future.
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