FIELD: power engineering.
SUBSTANCE: invention is related to the sphere of nuclear power engineering, in particular, to microspheric fuel with ceramic coatings. Particle fuel element of nuclear reactor, which contains fuel microsphere from UO2 and multi-layer coating, which consists of serially applied on fuel microsphere layers of low-density polycarbon, of isotropic high-density polycarbon, layer of carbide material nitride, power layer of carbide material and external layer made of isotropic high-density polycarbon.
EFFECT: possesses higher corrosion resistance of power carbide layers, which provides increase of its operation resource (depth of fuel burning).
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