INFLUENCE OF THE DISPERSION ENVIRONMENT ON THE PROPERTIES OF THE CHARGE OF LEAD-TIN BRONZE

This article presents the results of a study of the properties of the electroerosive charge obtained from the waste of lead-tin bronze BrO5C25, in particular, the influence of the chemical composition of the dispersion medium on the elemental and phase composition of the resulting electroerosive particles is evaluated. It has been established that when carrying out experiments on obtaining a charge in an oxygen-containing liquid (distilled water), a part of oxygen is present on the surface of the obtained particles. According to the results of the experiment, it was found that the main elements in the charge obtained by the method of electroerosive dispersion of BrO5C25 lead bronze waste in distilled water are oxygen, copper, tin, zinc and lead. The remaining elements are distributed relatively evenly in the mixture. Based on the performed X-ray diffraction microanalysis, it was found that the main phases in the charge obtained in distilled water are Cu, Pb(Cu₂O₂), Pb₅O₈, Pb, Sn. When carrying out experiments to obtain a charge in a carbon-containing liquid (illuminating kerosene), a part of carbon is present on the surface of the obtained particles. According to the results of the experiment, it was found that the main elements in the charge obtained by the method of electroerosive dispersion of lead bronze waste BrO5C25 in lighting kerosene are carbon, copper, tin, zinc and lead. The remaining elements are distributed relatively evenly in the charge. Based on the performed X-ray diffraction microanalysis, it was found that there are no carbide-forming elements in the alloy. The main phases in the charge obtained in lighting kerosene are also Cu, Pb(Cu₂O₂), Pb₅O₈, Pb, Sn. Thus, the influence of the dispersion medium on the elemental and phase composition of the electroerosive charge of lead-tin bronze BrO5C25 has been established.

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