MODIFICATION METHODS WITH HIGH ENERGY THE IMPACTS OF MULTILAYER PLASMA COATINGS ON BASIS OF CERAMICS
Keywords:
ceramic-metal plasma coatings, high-energy flows, treatment distance, molded structures, surface layers, compression plasma, laser treatmentAbstract
The article discusses processing methods using highly concentrated energy flows that effectively affect
the structure of multilayer plasma coatings with subsequent modification of the structure and without changing
the operational properties of the base. is thermal, associated primarily with the thermalization of the kinetic energy of the particles and contributing to the heating of the resulting near-surface layer. Even despite the high
melting temperatures of the materials of the coatings under study, high-energy treatment ensures their melting
with the formation of a melt above their melting temperature. The high temperature gradient that arises in the
molten layer of the formed coating, accompanied by the mechanical effects of flows on the melt surface and the
pressure of the shock-compressed layer, as well as the development of a number of hydrodynamic instabilities at
the phase boundaries, contributes to the mixing of the resulting molten layer, which in its turn turn and contributes to the homogenization of the elemental composition. High temperatures in the melt also lead to partial
evaporation of the atoms of the processed material, as a result, the ratio of oxygen and metal in the resulting
coating changes slightly
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