Utilizing solid wastes from coking and chemical production in nanocomposite powders in abrasive reactive wear of grinding bodies in a mechanochemical reactor

摘要

We have shown from theory and experiment that there is possible participation of steel material from the grinding bodies in the mechanochemical production of a composite based on cementite and carbon by the use of the abrasive features of silica modifications. The size measurements have been made and numerical simulation has been used for the mechanism and kinetics of this abrasive wear of the steel grinding bodies in an AGO-2 planetary grinder under fixed conditions for the mechanical activation. From a mixture of silica and sulfur, we obtained nanocomposites based on pyrite and a silica matrix in times less by 1-2 orders of magnitude than in the case of the traditional mechanical grinding of iron and sulfur powders. The grinding bodies can be any metal or ceramic components, which greatly extends the abrasive-reactive wear method with grinding bodies in mechanochemical reactors and the range of processed materials.