Composition, structure, and properties of powdered Cobalt obtained from K1Au cobalt metal waste in an aviation kerosene environment

Purpose. Determination and study of the composition, structure, and properties of a powdered Cobalt material obtained by electroerosive dispersion of K1Au Cobalt metal waste in a working environment of TS-1 aviation kerosene. Methods. In order to study the composition, structural features, and characteristics of the cobalt charge, samples of powdered metallic cobalt were obtained. This was achieved through the use of electro-discharge dispersion of K1Au cobalt waste in a carbon-containing working environment. The microstructure of the powder particles was examined using scanning electron microscopy, and the particle size distribution of the charge was assessed using a particle size analyzer. The elemental composition was determined by energy-dispersive X-ray analysis, implemented on the basis of a scanning electron microscope. The phase composition of the charge was determined by a diffractometer using Xray diffraction. Results. It has been established that the formed fine-grained cobalt powder consists of predominantly spherical and ellipsoidal particles, as well as their agglomerates. No carbon impurities were detected in the powder. Phase analysis showed the presence of a pure Cobalt crystal phase without the formation of carbide compounds. According to the granulometric analysis, the particle sizes are distributed in the range of 0.9 to 63.77 μm, with an average volume diameter of 12.06 μm. Conclusion. The obtained experimental data create a scientific and practical basis for the development of fundamentally new hard alloys, which may include cobalt powder obtained from metal waste by the method of electro-erosion dispersion. The presented results open up the prospect of further improvement of the composition and regulation of the structure of newly formed alloys.