The work is focused on studying the low-voltage (0–350 V) gas discharge with a liquid electrolytic cathode at various temperatures of an electrolyte. An aqueous solution of sodium hydroxide was used as a liquid cathode. The change in the discharge structure with increasing temperature is revealed, in particular, the transition from the bulk diffusive discharge to the leader discharge. The increase in the electrolyte temperature leads to the decrease in the intensity of hydrodynamic perturbations down to their disappearance. In addition, the anomalous growth of the vapor–air space between the metal anode and liquid cathode is observed. The key discharge parameters forming the anomalous growth are determined and the mechanism of vapor–air shell growth is proposed.
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Preparation of production and development of new science-intensive products is a complex and time-consuming process, including the creation of product models for carrying out a series of experimental studies to refine computational models, and then manufacturing the necessary technological equipment. The use of digital production technologies can reduce the laboriousness of this process. The technology of selective laser sintering eliminates the need for the design and manufacture of casting equipment. This paper presents an analysis of the difficulties encountered when using the SLS process for the manufacture of polystyrene smelted models.
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