“…The appropriateness of using carbon nanoparticles as additives to the tribological systems in order to increase their wear resistance is the focus of many studies [3][4][5][6][7][8][9]. Thus, in paper [3], it is proposed to create nano-compositional coatings of metal-carbon nanopipe on pairs of friction, which, in turn, substantially increases their wear resistance. However, this technology can be used only at the stage of design and production of new tribosystems, rather than during the operation.…”