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Author: Yauheni Auchynnikau

  • MATERIALS

    Influence of mechanically activated particles on the activity of polymer engineering materials and compositions based on themt

    • Yauheni Auchynnikau
    • Tatiаna Grigorieva
    • Yauhenia Eisimont
    • Valeri Sorokin
    • Ilya Mysika
    Machines. Technologies. Materials., Vol. 16 (2022), Issue 9, pg(s) 327-328
    • Abstract
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    The article presents the results of studies on the study of the physical and mechanical characteristics of polymeric materials modified with mechanically activated particles. It is shown that the use of mechanically activated nanosized particles makes it possible to achieve a significant effect of increasing operational characteristics at relatively low degrees of modification of 0.05% wt. – 3% wt. The use of modifiers at such concentrations in polymer matrices makes it possible to preserve the basic technology for the processing of polymeric materials and equipment in the manufacture of composite materials on a polymer matrix.

  • MATERIALS

    Nanophase structures in vacuum multilayer coatings formed on tool and high-speed steels

    • Yauheni Auchynnikau
    • Nikolai Chekan
    • Gennady Kostukovich
    • Igor Akula
    • Alexander Ogorodnikov A.
    Machines. Technologies. Materials., Vol. 16 (2022), Issue 7, pg(s) 251-254
    • Abstract
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    The most common coatings for metalworking tools include titanium nitride, titanium carbide, titanium carbonitride, zirconium nitride, zirconium carbide, zirconium carbonitride, compounds based on chromium, titanium, aluminum, diamond-like coatings that are formed in vacuum using PVD, CVD, PCVD methods or a combination of the above methods. The current trend in the deposition of vacuum coatings is the production of multifunctional coatings, which can significantly increase operational characteristics compared to the starting materials. To form multifunctional coatings, the creation of “sandwich” structures is used, since each layer performs various functions – forming, antiwear, anticorrosion. Thus, the use of a composite multilayer coating containing layers of titanium nitride, titanium, diamondcontaining compounds with a thickness of one layer from 0.1 to 2 microns makes it possible to increase the wear resistance of a metalworking tool by 1.5-5 times.

  • MATERIALS

    Operational characteristics of nanocomposite lubricants

    • Yauheni Auchynnikau
    Machines. Technologies. Materials., Vol. 15 (2021), Issue 8, pg(s) 325-327
    • Abstract
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    The study of the structure and physicomechanical characteristics of carbon nanostructures, lubricants and cooling liquids was carried out by methods of scanning electron microscopy, atomic force microscopy, IR spectroscopy, physicomechanical and physicochemical analysis. Tribotechnical tests were carried out on a friction machine operating according to the “sphere – plane” scheme.The possibility of modifying various liquid media with nanosized carbon particles of various composition, structure, production technology, including those obtained by the method of self-propagating high-temperature synthesis, has been studied. The studies carried out made it possible to establish general trends in the implementation of the synergistic effect in liquid matrices differing in structure, polarity of macromolecules, and molecular weight.

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