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Information × Registration Number 0223U003665, 0122U200715 , R & D reports Title Discharge pulse disintegration of high-density pseudoalloys of tungsten on powder microcomponents popup.stage_title Head Petrychenko Serhii V., к.т.н. Registration Date 12-06-2023 Organization Institute of Impulse Processes and Technologies National Academy of Sciences of Ukraine popup.description2 Object of research: electrodynamic, hydrodynamic and thermodynamic processes of high-voltage electrohydraulic and contact electrospark disintegration of materials, chemical transformations in such systems. The subject of research: disintegrated powder pseudoalloys tungsten-niсkel-iron and tungsten-niсkel-copper. Research methods: physical experiment in laboratory, mathematical modeling of hydrodynamic and thermodynamic processes in heterogeneous condensed media, X-ray phase and sieve analysis, electron microscopy. The main mechanisms of disintegration of heavy tungsten-containing materials during electrospark and electrohydraulic processing have been established, based on the results of research. The main mechanism of electrospark processing is electrothermal, the operating factors are joule heating of scrap particles in activated discharge zones between particles, considering the effect of current contraction and heat flow from the discharge plasma. For electrohydraulic effect the main operating factor is mechanical destruction with compression and stretching waves and quasi-static pressure. Mathematical modeling of processes was carried out according to the relevant mechanisms. Options of the complex high-voltage electro-hydraulic and electro-spark processing of tungsten scrap are proposed. The proposed options ensure the intensification of the disintegration. The concept of complex processing has been developed, it uses the necessary modes of the disintegration by power units with software regulation of their working parameters (charging voltage, frequency, the magnitude and speed of the increase in energy etc.), duration and the sequence of electro-hydraulic and electro-spark processing, as well as the velocity of the suspension circulation. Product Description popup.authors Boguslavskii Leonid Z. Vinnychenko Dmytro V. Maliushevska Antonina P. Nazarova Natalia S. Petrychenko Serhii V. popup.nrat_date 2023-06-12 Close