SORPTION MECHANOCHEMISTRY OF SOLID INORGANIC MATERIALS

The mechanical dispersion of solid inorganic materials (crushing, grin ding, polishing, wear) is accompanied by plastic deformation of the pa rticle surface layers. Practically all the effects of mechanochemistry arise due to this phenomenon. The sorption of environmental molecules and their heterogeneous interaction with thin surface layers activate d by plastic deformation substantially affect the intensity of dispers ion, the mechanochemical reactions, and the activity of the disperse m aterials. Mechanosorption phenomena are equally related to physicochem ical mechanics and mechanochemistry. The environment effects during th e destruction, the dispersion, and the mechanoactivation of solids are due to a mechanism that is common to them. In this review, the result s of studies on mechanosorption phenomena are given and their influenc e on the processes of dispersion and activation are noted. The process of polishing was shown to be totally mechanochemical. The technologic al direction of mechanosorption effects are also treated.