FIELD: nuclear equipment.
SUBSTANCE: invention relates to nuclear engineering and can be used primarily for nuclear reactors of different types with fuel elements. Disclosed is a fuel element with nuclear fuel enclosed in a shell, in which the shell is made in the form of an elongated hollow tube of zirconium alloy with a multilayer protective coating of its outer surface. Protective coating comprises at least one tubular layer of composite material, which is a metal matrix of titanium, niobium or zirconium or their alloys with filler made of carbon nanotubes.
EFFECT: creation of a fuel element with a multilayer protective composite coating, which prevents blowing and depressurisation of shells of fuel elements at the initial stage of the accident with loss of heat carrier, as well as occurrence of a zirconium-steam reaction.
11 cl, 4 dwg
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