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    Electrical properties of singleand multi-walled carbon nanotubes composites at low temperatures
    (Видавництво Львівської політехніки, 2017-12-23) Karbovnyk, Ivan; Lukashevych, Dmytro; Chalyy, Dmytro; Klym, Halyna; Ivan Franko National University of Lviv; Lviv State University of Life Safety
    Electrical properties of single- and multi-walled carbon nanotubes composites (PEDOT:PSS/CNTs) were investigated in the range of 50 to 200 K. It is established that composite films with multi-walled nanotubes loading show lower resistances as compared to their single-walled counterpart.
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    Prospects for the use of nanomaterials and nanocoatings for high-speed spindles
    (Видавництво Львівської політехніки, 2017-12-23) Vishtak, Inna; Savulyak, Valeriy; Vinnytsya National Technical University
    Much attention in the field of research and use of nanomaterials and nanotechnology has led to the fact that this area of science has become more relevant. The special qualities of nanomaterials that provide unique strength, thermal conductivity, electrical properties, tribotechnical properties with minimum dimensions and mass of products have become the goal of many scientists. The main types of nanomaterials are identified. One of the differences between nanostructural depositions on the surface is their strength under static loading and hardness as compared to materials from ordinary grain sizes. Increased hardness and wear resistance as a result of deposition of such coatings opens the prospects of using them in high-speed spindle units.