Ph. V. Kiryukhantsev-Korneev

National University of Science and Technology MISIS · Department of Powder Metallurgy & Functional Coatings. Scientific-educational center of SHS.

Results of XRD and TEM studies of a metastable phase state in Fe(73)Ti(5)B(19)O(3) and Fe(55)Ti(16)B(27)O(2) films, which is formed upon magnetron deposition under preset conditions, and of the evolution of the state in the course of subsequent annealing at 500•C for 1, 5, and 9 h and experimental data on the magnetic microstructure and magnetic pr...

Comprehensive studies of nanocomposite coatings in the Mo-Hf-La-Si-B system with different lanthanum content have been carried out. Coatings were obtained by magnetron sputtering of mosaic targets containing Mo-xLa 2 O 3 segments (x = 5, 20, 40%). It is shown that the most effective in terms of increasing hardness, elastic recovery, plasticity inde...

Novel nanomaterials used for wound healing should have many beneficial properties, including high biological and antibacterial activity. Immobilization of proteins can stimulate cell migration and viability, and implanted Ag ions provide an antimicrobial effect. However, the ion implantation method, often used to introduce a bactericidal element in...

A method was proposed for increasing the oxidation resistance of promising wrought Ti2AlNb ortho-alloys by depositing γ-TiAl-based coatings. Using original vacuum pulse-arc melting of 100 μm thick granule layers, coatings with different Al/Ti ratios and a thickness of 50–60 µm were obtained on the surface of the Ti50Al25Nb25 alloy. Granules Ti50Al4...

Magnetron sputtering with a chromium-containing Fe-19at.%Cr alloy is used to improve the corrosion resistance of Fe-20at.%Ga alloy. The structure of the 2 μm coated layer and distribution of the elements (Fe, Cr, and Ga) are investigated. The bcc phase (A2 structure) is observed in the sputtered sample by XRD analysis. The corrosion resistance in 3...

To improve the service properties of the CompoNiAl-M5-3 nickel monoaluminide alloy, protective coatings were applied by electrospark deposition using electrodes from the Zr-18%Ni eutectic alloy. Coatings were applied in an argon atmosphere using vibration and rotation type manual processing tools with both direct and reverse polarities connected. I...

Amorphous Ta-Zr-Si-B-C and Ta-Zr-Si-B-N coatings were deposited by magnetron sputtering using a ceramic target in Ar + C2H4 and Ar + N2 reaction media. Thermal stability under in situ TEM heating, vacuum annealing and nanoindentation, as well as the effect of heating on structural-phase transformations in coatings and their mechanical characteristi...

Nanocrystalline Fe(100–56.8)Ti(0–13.5)B(0–34.2) films 1.4 µm thick are prepared by dc magnetron deposition on glass substrates. The structure and magnetic properties of the films are comprehensively characterized and analyzed. The lattice parameter and the grain size of the bcc Fe-based phase (2-25 nm), parameters of the stochastic magnetic structu...

High-entropy alloys are promising materials for novel thin-film resistors since they have high resistivity and a low-temperature coefficient of resistivity (TCR). In this work, a new high-entropy thin-film CoCrFeNiTix was deposited on a Si/SiO2 substrate by means of magnetron sputtering of the multi-component target produced by hot pressing of the...

The objective of this research was to develop an environment-friendly and scalable method for the production of self-sanitizing electrospun nanofibers. This was achieved by immobilizing silver nanoparticles (Ag NPs) onto plasma-treated surfaces of biodegradable polycaprolactone (PCL) nanofibers. The plasma deposited polymer layer containing carboxy...

This work is devoted to the production of Mo-Hf-Y-Si-B-N coatings using magnetron sputtering with varying N2 flow rate; the analysis of magnetron discharge plasma; and the investigation of the structure, and optical, mechanical, and tribological characteristics, as well as crack resistance and oxidation resistance, of the coatings. The results show...

Coatings obtained by high-power impulse magnetron sputtering (HIPIMS) were tested using a64% Ti–16% C–14% Ni–6% Al target (42.5 at % Ti, 42.5 at % C, 7.5 at % Ni, 7.5 at % Al). The microstruc-ture and composition of the coatings were studied using scanning electron microscopy, optical emission spec-troscopy of a glow discharge, and X-ray phase anal...

In this study, Mo-(Y,Zr)-Si-B coatings were obtained by direct current magnetron sputtering (DCMS) and high-power impulse magnetron sputtering (HIPIMS) using mosaic targets. The results showed that the addition of Y and Zr into the composition of Mo-Si-B coatings led to the suppression of columnar grain growth, a decrease in the crystallite size of...

Citation: Manakhov, A.M.; Permyakova, E.S.; Solovieva, A.O.; Sitnikova, N.A.; Kiryukhantsev-Korneev, P.V.; Konopatsky, A.S.; Shtansky, D.V. Immobilization and Release of Platelet-Rich Plasma from Modified Nanofibers Studied by Advanced X-ray Photoelectron Spectroscopy Analyses. Polymers 2023, 15, 1440. https://doi. Abstract: Platelet-rich Plasma (P...

In this study, hard wear-resistant Ti-Si-C coatings were deposited on Cu-Cr materials to improve their performance as sliding electrical contact materials. A ceramic disk composed of Ti3SiC2 and TiC phases was used as a target for DC magnetron sputtering to deposit the coatings. The influence of the power supplied to the magnetron on the chemical c...

The spread of bacterial, fungal, and viral diseases by airborne aerosol flows poses a serious threat to human health, so the development of highly effective antibacterial, antifungal and antiviral filters to protect the respiratory system is in great demand. In this study, we developed ZnO-modified polycaprolactone nanofibers (PCL-ZnO) by treating...

The Fe(99.2÷56.6)Ti(0÷13.2)B(0÷34) films were prepared by dc magnetron deposition on glass substrates. X-ray diffraction analysis was used to determine the phase composition, volume fractions of formed crystalline phases, their grain sizes and microstrains on the grain scale. The magnetic hysteretic properties, saturation induction Bs (2.1-0.3 T),...

Mo-Zr-Si-B coatings were deposited by high-power impulse magnetron sputtering at a pulse frequency of 10, 50, and 200 Hz. The coating structure was studied by scanning electron microscopy, energy-dispersive spectroscopy, glow-discharge optical-emission spectroscopy, transmission electron microscopy, and X-ray diffraction. The mechanical characteris...

Protective coatings were applied by electrospark deposition (ESD) using zirconium electrodes to improve the performance of the Ni-containing alloy obtained using the selective laser melting (SLM) technology. The kinetics of mass transfer was studied in 5 different frequency-energy processing modes. An analog-to-digital converter was used to determi...

This article presents a comprehensive study of the ZrBN coating characterized by high transmittance. The coating was deposited by magnetron sputtering of a ZrB2 target in nitrogen atmosphere. The coating structure was studied by scanning and transmission electron microscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, and glow-discharge o...

Various biomedical applications of biodegradable nanofibers are a hot topic, as evidenced by the ever-increasing number of publications in this field. However, as-prepared nanofibers suffer from poor cell adhesion, so their surface is often modified. In this work, active polymeric surface layers with different densities of COOH groups from 5.1 to 1...

Ta–Si–C–N single-layer films have been synthesized by direct current magnetron sputtering on fused quartz substrates. The structural perfection of the films has been studied using X-ray diffraction, scanning electron microscopy and glow discharge optical emission spectroscopy. The optical parameters of the films have been studied using multi-angle...

Single-layer Ta-Si-C-N films on fused quartz substrates were made by direct current magnetron sputtering. The structural perfection of the film was investigated by X-ray diffraction analysis, scanning electron microscopy and optical emission spectroscopy of glow discharge. The optical parameters of the films were determined by the method of multi-a...

Mo–Si–B and Mo–Hf–Si–B coatings were produced by magnetron sputtering of a MoSiB ceramic target equipped with 2 or 4 Hf segments. Their structure and composition were studied by scanning electron microscopy, energy dispersive spectro scopy, X-ray diffraction analysis, and Raman spectroscopy. Mechanical properties were determined by nanoindentation...

COOH plasma polymer layers deposited onto polycaprolactone (PCL) nanofibers by plasma polymerization of CO2 and C2H4 in the Ar atmosphere were obtained and tested for diabetic wound healing. Simply by changing the deposition time, very different morphologies of coated PCL nanofibers were achieved. In vivo tests revealed that by applying modified na...

The COVID-19 pandemic has raised the problem of efficient, low-cost materials enabling the effective protection of people from viruses transmitted through the air or via surfaces. Nanofibers can be a great candidate for efficient air filtration due to their structure, although they cannot protect from viruses. In this work, we prepared a wide range...

The Mo-Si-B, Mo-Zr-Si-B, and Mo-Hf-Si-B coatings were deposited by magnetron sputtering of the MoSi2-MoB, MoSi2-MoB-ZrB2 and MoSi2-MoB-HfB2 targets. The composition and structure of coatings were investigated by glow discharge optical emission spectroscopy, scanning electron microscopy, X-ray diffraction, transmission electron microscopy, X-ray pho...

The paper presents results of investigation of Fe(65.3–100)Zr(34.7–0)N(7.5–0) films prepared by dc magnetron deposition on glass substrates and subsequent 1-hour annealing at temperatures of 300–600 °C. The influence of the chemical and phase compositions and structure of the films, which were studied by TEM, SEM, XRD, and GDOES, on their mechanica...

Coatings were obtained by vacuum electro-spark alloying (VESA), pulsed cathodic arc evaporation (PCAE), magnetron sputtering (MS) techniques and VESA-PCAE-MS hybrid technology using Cr3C2–NiAl electrodes. The structure of the coatings was analyzed using scanning and transmission electron microscopy, X-ray diffraction and energy-dispersive spectrosc...

The combined vacuum technology involving electrospark deposition (ESD) and pulsed arc evaporation (PAE) is used to deposit a double-layer NiAlCrCoHf coating onto a substrate manufactured by a laser powder bed fusion (LPBF) of heat-resistant EP741 nickel superalloy. Thickness of the ESD and PAE layers are 35 and 4 µm, respectively. The energy parame...

In this work, plasma diagnostics during the deposition of Zr-B-N coatings by DCMS and HIPIMS methods were carried out, the structural characteristics and growth rates of the obtained coatings were investigated; the regularities of the influence of the working atmosphere on the composition of the plasma, as well as on the thickness and growth rate o...

Zr–B–N сoatings have been obtained by high-power impulse magnetron sputtering (HIPIMS) in Ar, Ar + 15% N2, and N2 gaseous media using a ZrB2 target made by self-propagating high-temperature synthesis (SHS). Sputtering is carried out at the following parameters: mean power of 1 kW, peak power of 70 kW, peak current of 130 A, frequency of 100 Hz, and...

Promising compositions of coatings applied by pulsed electrospark deposition (PED) using MoSi2–MoB ceramic electrodes doped with hafnium and zirconium diborides are proposed for the purpose of increasing the oxidation resistance and extending the service life of critical parts made of heat-resistant nickel-based EP741NP superalloy. The high-tempera...

Pulsed magnetron sputtering of a TaSi2 ceramic target 120 mm in diameter was used to deposit coatings on model silicon substrates at a gas flow rate ratio of Ar/N 2 = 1/2 and frequencies of 5, 50, and 350 kHz. The structure and composition of coatings were investigated using scanning electron microscopy, energy dispersive analysis and glow discharg...

In this work, Zr–B–N coatings were obtained by the method of high-power impulse magnetron sputtering (HIPIMS) in Ar, Ar + 15%N 2 , and N 2 gaseous media using a ZrB 2 SHS target. Sputtering was carried out at the following parameters: medium power of 1 kW, peak power of 70 kW, peak current of 130 A, frequency of 100 Hz, pulse duration of 200 μs. Th...

This paper studies the diffusion-barrier properties, resistance to thermal cycling, oxidation resistance, and thermal stability of TiAlSiCN single-layer coatings, as well as of TiAlSiCN/SiBCN and TiAlSiCN/AlOx multilayer coatings. The coatings were obtained by vacuum ion plasma technology combining magnetron and ion sputtering of TiAlSiCN, Si42B45C...

The coatings ZrB2 and Zr-B-N were deposited by magnetron sputtering of ZrB2 target in Ar and Ar–15%N2 atmospheres. The structure and properties of the coatings were investigated via scanning and transmission electron microscopy, energy dispersion analysis, optical profilometry, glowing discharge optical emission spectroscopy and X-ray diffraction a...

Coatings in a Zr-Mo-Si-B-N system were deposited by the magnetron sputtering of ZrB2-MoSi2 targets in argon and nitrogen. The structure of the coatings was investigated using scanning electron microscopy, X-ray diffraction, energy-dispersive spectroscopy, and glow-discharge optical emission spectroscopy. Mechanical and tribological properties were...

Antibacterial coatings have become a rapidly developing field of research, strongly stimulated by the increasing urgency of identifying alternatives to the traditional administration of antibiotics. Such coatings can be deposited onto implants and other medical devices and prevent the inflammations caused by hospital-acquired infections. Neverthele...

Boron and oxygen-doped Cr–Al–Ti–N coatings were deposited by closed field unbalanced magnetron sputtering (CFUBMS) of TiB target manufactured by self-propagating high-temperature synthesis, and Ti, Cr, and Al targets. The introduction of boron suppresses columnar growth and leads to structural refinement and a decrease of coating’s surface roughnes...

Coatings were obtained by magnetron sputtering of a Ta-Si target onto Al2O3, Mo, Si and Ni-based substrates. Samples were studied in terms of their structure, mechanical properties and oxidation resistance by SEM, EDS, nanoindentation and GDOES methods. It was found that an increase in the concentration of nitrogen leads to an increase in the hardn...

The coercive field of soft magnetic ferromagnets is a structure-sensitive property and, in particular, is substantially affected by residual stresses. In the present study, the phase and structural states and residual stresses of the FeTiB and FeZrN films of various compositions, which were prepared by magnetron deposition on glass substrates and s...

The main trends of modern developing magnetic microelectronics are miniaturization and speed, while ensuring efficient operation in the MHz and GHz frequency ranges of magnetic fields. Developing new magnetic materials featured by properties that ensure the implementation of these trends is the key fundamental and applied problem of materials scien...

Coatings were obtained by magnetron sputtering of a ZrSiB target onto WC-6%Co substrates. Samples were studied in terms of their structure, friction coefficient, wear- and impact loading resistance. The Zr-Si-B coating contained the hexagonal ZrB2 phase. Coating deposition reduces the friction coefficient of the substrate by 10% and increases the r...

Zr–Mo-Si-B coatings were successfully deposited using non-reactive magnetron sputtering of ceramic ZrMoSiB target. Structural investigations have been carried out using Xray diffraction analysis, high-resolution transmission and scanning electron microscopy, glowdischarge optical-emission, and energy-dispersive spectroscopy. The coatings were subje...

To cite this article: Ph V Kiryukhantsev-Korneev et al 2020 Abstract. The purpose of this study was to develop a method for determining the tensile strength of ion-plasma coatings during their nanodeformation in the column of a transmission electron microscope. The advanced oxidation-resistant coating in the Mo-Zr-Si-B system was selected as the ob...

Challenges related to the application of wear resistant coatings at high temperatures require the development of novel materials with an exceptional combination of mechanical, chemical and tribological properties. The present paper is focused on understanding of relationships between structure, composition and high-temperature performance of the Si...

Optically transparent Zr–Si-B-N films on quartz plates were manufactured by direct current magnetron sputtering of multiphase ZrB2-50%ZrSi2 ceramic cathode. Structural investigations have been carried out using X-ray diffraction analysis, scanning electron microscopy, and glow-discharge optical-emission spectroscopy. The dependences of optical prop...

Ta–Zr–Si–B–C–N coatings are obtained by magnetron sputtering in argon, nitrogen, and ethylene atmosphere. The structure of the coatings is analyzed by scanning electron microscopy and energy dispersive and X-ray phase analysis. The mechanical properties of the coatings are determined by nanoindentation. Tribological tests are performed using a Trib...

Coatings based on transition metal borides (Ti, Mo, Cr, Zr) were obtained by magnetron sputter-ing of ceramic targets in Ar and Ar–15% N2 gaseous media. Resistance of coatings to cyclic impact loadingagainst WC–6%Co ball was estimated at a load of 1 kN for 105 cycles using a CemeCon impact tester. Theanalysis of the relationship between the structu...

Annotation Mo-Si-B, Mo-Zr-Si-B, and Mo-Hf-Si-B coatings were obtained by direct current magnetron sputtering. Microstructure and composition of coatings were studied using scanning electron microscopy, energy-dispersive analysis, and glow discharge optical emission spectroscopy. Erosion resistance were estimated in the liquid under the ultrasonic v...

Coatings in the Ta-Zr-Si-B-C-N system were produced by magnetron sputtering of a TaSi 2-Ta 3 B 4-(Ta,Zr)B 2 ceramic target in the Ar medium and Ar-N 2 and ArC 2 H 4 gas mixtures. The structure and composition of coatings were studied using scanning electron microscopy, glow discharge optical emission spectroscopy, energy-dispersion spectroscopy, an...

The development of flexible and low-cost methods of surface functionalization to fight infection at the early stage is an urgent scientific task. Herein, polymerization in low-pressure plasma rich in COOH species and carbodiimide chemistry methods were utilized to immobilize four different therapeutic agents (antibiotic (gentamicin), antimicrobial...

The effects of using of the HIPIMS technology for deposition of coatings for various purposes, including CrB, TiAlNiC, and MoHfSiB, are studied. Ceramic targets obtained by self-propagating high-temperature synthesis were used for sputtering. It is shown that the transition from DC to HIPIMS modes increases the structure density, hardness, elastic-...

The method of magnetron sputtering of a ZrB2–20% Si target was used to obtain coatings on substrates of molybdenum, chromium, and hard alloy. The composition, structure and tribological properties of the coatings have been studied. The inf luence of physical and mechanical properties of substrates on the behavior of coatings under friction sliding...

Mo-Si-B and Mo-Hf-Si-B coatings are deposited by magnetron sputtering in two regimes (direct and pulsed current) using composite ceramic cathodes. The structure of the coatings is investigated by XRD, SEM, EDS, and GDOES. Mechanical and tribological properties are measured by nanoindentation and tribological pin-on-disc testing. The short-term oxid...

Reactive powder composites Cu-(0–15%)TiH2 containing up to 5% native Cu2O were manufactured by high energy ball milling and then hot-pressed to produce bulk nanostructured copper–matrix alloys reinforced by Cu3Ti3O inclusions. Two high-energy ball-milling (HEBM) protocols were employed for the fabrication of Cu-Ti alloys: single-stage and two-stage...

Coating in the Ta-Zr-Si-B-C-N system was obtained by magnetron sputtering in an atmosphere of argon, nitrogen, and ethylene. The structure of the coatings was studied using scanning electron microscopy, energy dispersive and x-ray phase analysis. The mechanical properties of the coatings are determined using the nanoindentation method. The heat res...

The influence of boron on the structure and on the mechanical and tribological properties of protective coatings of the Cr–Al–Ti–N alloys obtained by magnetron sputtering in a closed unbalanced magnetic field using segmented planar ceramic SHS targets has been studied. The obtained coatings were examined using glow discharge optical emission spectr...

Hard TiCrBN films on cemented carbide substrate were measured using nanoindentation. The cemented carbide contained WC, (Ti,Ta,W)C, and cobalt binder (HWC = 19 GPa, HTiC = 28 GPa, HCo =2 GPa). Films were deposited onto the substrate after ion etching. Substrate roughness were varied by time of ion etching: Ra = 3 nm (no etching), Ra = 7 nm (etching...

The Fe-Ti-B films were obtained by dc magnetron sputtering of the Fe + 15% TiB2 and Fe + 30% TiB2 targets. The chemical composition and structure were studied in the as-sputtered state and after vacuum annealing at 500°C. The static (saturation magnetization Ms and coercive field Hc) and rf magnetic properties (magnetic permeability μ’, frequency o...

Multicomponent coatings were obtained by electro-spark alloying using Cr3C2-NiAl electrodes, in air and in argon medium at direct and opposite polarity. Cr3C2-NiAl electrodes were manufactured by self-propagating high temperature synthesis. Mass transfer kinetics was determined by gravimetric method. The structure and composition of the coatings we...

The effects of granulation of reactive mixtures Ti-Cr-C and Ti-Cr-C-Ni on the combustion temperature and velocity, as well as phase composition and mechanical properties (crushing ability) of combustion products, were studied. Granulation was associated with a 1.5-fold increase in combustion velocity, caused by a nearly 10-fold increase in gas perm...

Single- and double-layer coatings on 40Cr steel substrates have been obtained by electrospark alloying (ESA) and a combination of ESA technology and pulsed cathodic arc evaporation (PCAE) using TiCNiCr and TiCNiCr–Dy2O3 electrodes. The electrodes are obtained by powder metallurgy. The structure and elemental and phase composition of the electrodes...

The technology of pulsed cathode-arc evaporation (P-CAE) has been successfully applied for coating deposition in the Cr–B–C–N system. The coatings had a structure typical for arc coatings with a significant fraction of the condensed droplet phase, but the formation of an adverse columnar morphology has been eliminated. The coatings contained crysta...

Single- and double-layer coatings on 40Cr steel substrates have been obtained by electrospark alloying (ESA) and a combination of ESA technology and pulsed cathodic arc evaporation (PCAE) using TiCNiCr and TiCNiCr–Dy2O3 electrodes. The electrodes are obtained by powder metallurgy. The structure and elemental and phase composition of the electrodes...

Powders of high-entropy Hf0.2Ta0.2Ti0.2Nb0.2Zr0.2C (HECZr) and Hf0.2Ta0.2Ti0.2Nb0.2Mo0.2C (HECMo) carbides were fabricated through the reactive high-energy ball milling (R-HEBM) of metal and graphite particles. It was found that 60 min of R-HEBM is adequate to achieve a full conversion of the initial precursors into a FCC solid solution for both co...

The processes of the pulsed magnetron sputtering (PMS) of multicomponent ceramic targets are studied upon deposition of functional coatings of various purposes. The regularities of changes in the structural characteristics, as well as mechanical and tribological properties, under increasing magnetron power frequency are studied. Summarizing the res...

Thin fims in the Zr−B−N system possessing optical transparency have been studied. It is estab-lished that increase in the volume fraction of nitrogen in the gas mixture and, hence, in the concentration ofnitrogen in the coatings leads to an increase in their optical transmission due to the formation of a BN phase.

A novel two-stage technology combining vacuum electro-spark alloying (VESA) and pulsed cathodic arc evaporation (PCAE) was approbated for the deposition of TiC-based coatings in inert (Ar) and reactive (C2H4) atmospheres. The deposition was carried out using a TiC-NiCr-Eu2O3 electrode and 5140 steel substrates. Structural, elemental, and phase comp...

The single- and multilayer coatings were deposited by methods of vacuum electro-spark alloying (VESA), pulsed cathodic arc evaporation (PCAE), magnetron sputtering (MS) and by hybrid VESA-PCAE, VESA-MS and VESA-PCAE-MS technologies. Cr3C2-NiAl electrodes obtained by self-propagating high-temperature synthesis (SHS) were used for coating deposition....

To increase the oxidation resistance of the Inconel 718 Ni alloy, a hybrid technology is proposed that combines electro-spark alloying (ESA) and magnetron sputtering (MS). Multiphase ZrSiB (ESA), ZrSiB, MoSiB, and CrAlSiB (MS) electrodes were obtained by self-propagating high-temperature synthesis. The study of the structure, composition and proper...

To increase the oxidation resistance of the Inconel 718 Ni alloy, a hybrid technology is proposed that combines electro-spark alloying (ESA) and magnetron sputtering (MS). Multiphase ZrSiB (ESA), ZrSiB, MoSiB, and CrAlSiB (MS) electrodes were obtained by self-propagating high-temperature synthesis. The study of the structure, composition and proper...

Due to their good mechanical stability compared to gelatin, collagen or polyethylene glycol nanofibers and slow degradation rate, biodegradable poly-ε-caprolactone (PCL) nanofibers are promising material as scaffolds for bone and soft-tissue engineering. Here, PCL nanofibers were prepared by the electrospinning method and then subjected to surface...

A comparative study of ZrSiB coatings obtained by magnetron sputtering with the use of cathodes of different phase composition is carried out. The optimal compositions from the point of view of maximum heat resistance are revealed.