FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing a substance with a non-stoichiometric composition from a molten glass-forming multi-component system. The method of controlling process depletion intensity when producing a substance with a non-stoichiometric composition involves using non-connected anode and cathode baths with a melt and applying an electric field on the melt, which results in tearing away of electrons from the molten glass-forming multi-component mixture, with accumulation of a stream of torn electrons in a closed electrical circuit. Volume-distributed positive electric charges along with anode charge field polarise the melt in the cathode bath as well, where material of a first type is placed with interfacing with the melt; the formed fields act in a particular manner on mobile cations of the melt which, at the electrode of the cathode bath, change their concentration in the melt with decrease to a given value, which is accompanied by release at the cathode of an associated metal of the type of mobile cations, wherein due to combination of chemical elements and in the presence of gases, structural changes occur in the melt to obtain a new substance which is characterised by its single-phase nature and non-stoichiometric chemical composition; the melt is then cooled at a certain rate. At the initial phase of heating to the required glass-transition temperature and "accelerating" the column to a state where process depletion occurs with the onset of a gas glow in the volume of the melt to form plasma radiation for subsequent maintenance of sufficient and high intensity of plasma radiation in the glass-forming multi-component melt, additional pumping UV radiation is transmitted to both baths from the outside, the value of said radiation being close to, matching or being in resonance with radiation in the column. Output of electrons and transfer of cations in the melt are then controlled; intensification and stabilisation of process depletion at all phases are conducted by applying additional external combined energy effects which cover the anode and cathode baths with the melt in form of additional different non-uniform electromagnetic fields whose strength values differ 2-3 fold, and configuration of the non-uniform overall field is created by arranging inclination angles from 5-7° to 85-90° of centre axes of fields of coil systems to the axis of the column depending on chemical composition of components of the melt.
EFFECT: controlling process depletion intensity.
4 cl, 3 dwg
