2019, Девятк, Ю. Н., Новиков, В. В., Хомяков, О. В., Новиков, Владимир Владимирович, Хомяков, Олег Владимирович

A model of radiation-induced densification of uranium-gadolinium fuel was developed. The fuel is established to be in the brittle state in the volume of uranium-gadolinium fuel pellet containing a burnable neutron absorber under irradiation and in the plastic state out of this volume. The relative change in a pellet volume for uranium-gadolinium fuel is shown to be lower than that for uranium oxide nuclear fuel with the same microstructure.

2017, Девятко, Ю. Н., Новиков, В. В., Хомяков, О. В., Хомяков, Олег Владимирович

Formation mechanism of massive hydrides in irradiated zirconium cladding is established. It is shown that the duration of formation process is defined by a period of time up to destruction of oxide film on the internal surface of fuel cladding. The time required for massive hydride to grow through the thickness of zirconium cladding is established.