– development of the technological processes for producing protective hardening coatings to increase the service life of equipment pieces for TPP, NPP, space technologies and engineering industry;

– improvement of the coating deposition methods and surface modification through the use of combined technological processes and extension of the parameter value range ensuring implementation of the process.

– development of protective coatings for structural materials, refractory metals and alloys, carbon materials by the method of vacuum-activated diffusion saturation;

– development of protective coatings for steel products used in engineering industry of Ukraine, heat-resistant coatings for niobium and its alloys using one-stage technology, complex protective coatings for the products made of carbon materials.

– it was found that the ratio of the lattice parameters determined in the experiment to the lattice parameter of the most refractory metal in high-entropy alloys (HEA) reflects the level of elastic modulus in relation to the theoretically possible one with the given set of elements both in the cast HEAs and in cthe oatings based on them. The influence of the content of high-entropy oxide phase in the coating on the hardness and elastic modulus was determined. It is shown that, in optimal proportion, the hardness of the coating is in the range of 23-27 GPa. Annealing of high-entropy oxide coatings at the temperature of 1373 K for 300 minutes reduces the hardness of the coatings from 24 to 17 GPa and leads to the insignificant increase in the structural parameters. Oxide coatings have the friction coefficient of ~ 0.05;

– TiAlSiYN coatings deposited at U_b = – 200 V have high hardness H = 49.5 GPa due to the texture formation with the axis [111] perpendicular to the growth plane. The peculiarity of wear for the tool with nanostructured superhard TiAlSiYN coating is the start of chipping of the cutting edge at the value of h₃ ~ 0.2 mm. Mechanical tests when cutting hardened steel (HRC = 64) with cubic boron nitride (PcBN) tool having the nanolayered protective coating (TiAlSiY) N/CrN showed a significant (1.6 times) decrease in its wear;

– a unique method for obtaining multipurpose protective coatings (heat-resistant up to 2000°С, wear-resistant, antifriction, etc.) on structural materials (steel, refractory alloys, carbon materials) under simultaneous synergistic action of the gas phase, liquid medium and SHS (self-propagating high-temperature synthesis ) was developed;

– for the first time in the world practice, multilayer nitride coatings based on high-entropy Ti-Zr-Nb-Ta-Hf alloys and nitrides of group VI transition metals were obtained. It is shown that at the negative bias potential (U_s) of less than  150 V applied to the substrate during deposition, in multilayer coatings with the layer thickness of about 50 nm, it is possible to achieve a two-phase state with the predominant crystallite orientation, which leads to high hardness (up to 44 GPa) and, at the same time, high adhesion strength (critical load up to 125 N), as well as low wear (both with the Al₂O₃ counterbody and steel);

– the theory of temperature-anomalous diffusion (TAD) under the influence of external periodic fields was developed. TAD regions were determined depending on the amplitude and frequency of the applied fields. The degree of diffusion enhancement is calculated under various conditions. It is shown that using the fields in a calculated narrow range of amplitudes and frequencies, it is possible to accelerate diffusion processes by many orders of magnitude without increasing the temperature of the material;

– for the first time, a thermodynamic consideration for the corrosion-resistant coating formation on the refractory materials (Nb, Ta and their alloys) was carried out under one-stage saturation in a multicomponent filling with the formation of corrosion-resistant borosilicides W, Mo and Hf. This makes it possible to apply heat-resistant coatings on Nb etc. without preliminary application of the pure metal sub-layers, which are then converted into heat-resistant silicides;

– a new technology for coating application by the method of electron-beam cluster deposition using the nanoscale clusters, which are formed in a supersonic flow of the carrier gas at the interaction with the primary vapor flow was developed and tested. The achieved rates for the deposition of coatings from ВХ2К and Zr₂ alloy on Е–125 zirconium are from 1 to 10 μm/min. The heat resistance of the coatings was investigated in the temperature range of 800 – 1100°С. The penetration depth of О₂ into Zr does not exceed several micrometers for 1 hour of testing at 1100°С;

– jointly with the Institute of Mechanical Engineering Problems named after A.N. Podgorny NASU, a new concept of erosion protection for ultra-long blades of NPP powerful steam turbines was developed and agreed with JSC "Turboatom". The concept is based on the combination of active and passive methods of protection, which provide, along with the traditional method of hardening the leading edges with HFC, the application of nanostructured protective coating and formation of working processes in the flow path, which increase the erosion resistance of the blades;

– the new technology for multipurpose complex coating deposition under the conditions of exposure to a gaseous activator, liquid media and SHS process simultaneously on the products of complex configuration, including those with the internal hidden cavities, made of metals, their alloys and carbon-carbon materials. Coatings can be applied, in particular, to combustion chambers of rocket engines, GTE blades, spherical fuel elements for high-temperature reactors, graphite plates and to the inner surfaces of NPP steam pipelines etc.;

– the theory of particle diffusion and transport in spatially periodic structures with low dissipation was built. For the first time, analytical expressions were obtained for the particle flux, effective temperature and correlation time. These expressions can be widely used when setting up, conducting and analyzing experiments in a wide class of physical systems. These are surface and volume diffusion of defects, plasticity of materials, anomalous penetration of defects during irradiation, Josephson contacts, etc. The obtained theoretical results open up new possibilities for creating the promising technologies in the field of solid state physics;

– the technology for hardening cold heading tools made of X12M steel by applying titanium-silicon-nitrogen ion-plasma coatings to the surface was developed and put into operation. The coatings are used by the Kharkiv Hardware Plant as a finishing operation for the manufacture of tools, which reduce the cost of their manufacture per ton of products by two or three times;

– a batch of serial combustion chambers for uncooled low-thrust jet engines made of niobium was produced in the amount of 20 pieces, which will be used in Ukraine and Italy. High results were obtained on the heat resistance of full-scale combustion chambers made of Рб5В2МЦ-М niobium alloy for the uncooled low-thrust liquid apogee engine РД840;

– thick 100 – 200 μm nitride coatings were developed to harden the surfaces of the elements for aviation parts, and in the future, turbine blades. Two methods of high-speed and deep nitriding of steels (in particular, punches) having no analogues in their characteristics were developed. Superhard multilayer nitride coatings were developed and are used for hardening the surface of carbide cutting tools. These cotings are superior or comparable in resistance to foreign TiAlSiN, but are not susceptible to brittle fracture. This allows import substitution for new or re-sharpened tools. The developed technologies made it possible to create a complex "nitriding + multilayer coating" method for hardening the surfaces of machine parts made of low-, medium- and high-alloy steels;

– the technology for application of the coating with the thickness of ~ 250 μm, as well as of tantalum distancing bulges with the height of ~ 1.75 mm, was developed to form a sealed corrosion-resistant cladding under irradiation with high-energy electrons in the aqueous medium. The claddings on tungsten plates of 66 × 66 mm in size and 3, 4, 6 and 10 mm thick are the neutron-forming elements of the NSC KIPT Neutron Source target;

– the technology for drip-free coating deposition using arc plasma was developed and tested. The deposition rate of nitride coatings is 10 – 17 μm/h. This technology is competitive with magnetrons and separators.

– Laboratory of activated vacuum diffusion saturation.

At the moment, the main activity of the laboratory is the development of protective coatings for steel products used in engineering industry in Ukraine, heat-resistant coatings for niobium and its alloys using the one-stage technology, complex protective coatings on the products made of carbon materials.

– Laboratory for the research and development of intensive ion-plasma technologies.

The main directions of work for the laboratory are the gas-phase, atomic-ion and vacuum-arc coating deposition, as well as the arc discharge plasma nitriding and development of drip-free coating deposition technology.