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Purpose: The application of arc discharge to synthesising encapsulated (Fe-Cu-Al)@C structures is studied. The cost-effectiveness of the proposed technique may be beneficial for developing a new method for large-scale production of metal micro- and nanoparticles protected from oxidation by a carbon shell. Design/methodology/approach: A copper sample was immersed into a mixture of graphite, iron, and...
Purpose: Application of plasma glow discharge to copper oxide nanostructure growth is studied. The simplicity of the proposed technique may be beneficial for the development of new plasma reactors for large-scale production of diverse metal oxide nanostructures. Design/methodology/approach: Copper sample was placed on anode of a setup designed to ignite plasma glow discharge. The proposed approach...
Purpose: The application of a common magnetron discharge to the growth of carbon nanostructures is studied. The simplicity of the proposed technique can be beneficial for the development of new plasma reactors for large-scale production of carbon nanostructures. Design/methodology/approach: Graphite cathode was treated by carbon-containing powder accelerated by use of nozzle, and then aged in hydrogen...
It has been determined that cavitation processes in a pump complex are characterized by gas-vapor mixture considerable power that may make up to 25% of hydraulic power of the liquid flow. A mathematical model of a pump complex electric drive control system with a device for recuperation of gas-vapor mixture energy is given. The obtained curves of pressure variation in the hydrosystem have proved the...
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