FIELD: engines.
SUBSTANCE: invention relates to methods of determining compatibility of various types of nuclear fuel and structural materials. Method of testing for compatibility of nuclear fuel powder with fuel rod cladding material comprises diffusion annealing of nuclear fuel powder and fuel rod cladding pair. From material of fuel rod cladding is made crucible with a polished inner surface and lid, after which it is moulded into a powder with test fuel and fission products simulators and sealing crucible in an inert gas atmosphere, followed by annealing in temperature range of 600-1,000 °C. Testing is carried out using uranium alloy powders or uranium mononitride with particle size of 10-20 mcm. To produce crucible and cover method uses corrosion-resistant steel or zirconium alloys, and as imitators of chemically active fission products, iodine and/or caesium and/or tellurium.
EFFECT: technical result is reliable contact (adhesion) of fuel and structural materials, which increases reliability and information value of diffusion tests.
8 cl, 3 dwg
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