The technological additions are the most vulnerable component of ceramics which create conditions for the formation of a glass phase with distributed Al2O3 particles. The accumulation of stresses of the surface layer takes place namely along the boundaries of the phases, which is responsible for the cyclical nature of mass losses. Microscopic analysis showed that the destruction of specimens occurs precisely over the vitreous phase, which is contained along the grain boundaries of aluminum oxide.
The article shows that it is possible to effectively cavitate various production media. For example, a significant effect was found in the extraction of protein from defatted ground bones. The extraction process according to a similar scheme at 18-20°C allowed for an additional 4-6% of protein to be extracted by weight. The results of extraction of biologically active substances from vegetable raw materials were also obtained.
