PHYSICOMECHANICAL PROPERTIES FUEL TABLETS Based on URANIUM DIOXIDE
The experimental data allowing to specify idea of the mechanism of processes of pressing and agglomeration of tablets of dioxide of uranium and to develop recommendations about modernization of tests of an assessment of quality of initial powders of dioxide of uranium are given in this article. The considered techniques of testing of initial powder of an empirichna also do not allow developing more effective ways of receiving enough strong tablets. Mechanical durability of tablets should be characterized by the size of the destroying effort per unit area split surfaces. For rationing of temperature of course of processes of pressing and agglomeration it is necessary to study in more detail dependences of dynamic durability of tablets on temperature and pressure. Weak moistening of powder does not provide formation of rather strong coherently disperse structure of a tablet. It is expedient to investigate the samples humidified in a certain interval of humidity (0,1-1% of H 2O with additives of various flokulyant), and to investigate powders with broader dispersion of the sizes of particles.