Abstract
It is shown that carbon nanomaterials (ultradispersed diamond-graphite batch mixture, ultradispersed diamonds) introduced into basic electrolytes cause significant intensification of the process of micro-plasma formation of ceramic coatings on aluminum alloys of different compositions, including silumins characterized by a strongly heterogeneous structure. This is primarily manifested in an increase in the coating thickness as dependent on the chemical composition of the hard-facing alloys by 1.8–2.5 times. Modification of ceramic coatings by carbon nanoparticles results in a significant increase in their microhardness and wear resistance and a simultaneous decrease in the friction coefficient
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