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Wyświetlanie 1-9 z 9
Tytuł:
The physical and mechanical properties of (Ti, Hf, Zr, Nb, V, Ta) N coatings deposited in the vacuum-arc process
Właściwości fizyczne i mechaniczne powłok (Ti, Hf, Zr, Nb, V, Ta) N otrzymanych metodą łukowego osadzania próżniowego
Autorzy:
Tleukenov, Y. O.
Pogrebnjak, A. D.
Plotnikov, S. V.
Erdybaeva, N. K.
Powiązania:
https://bibliotekanauki.pl/articles/190635.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
high entropy
evaporator
deposition
profilogram
multi-component
wysoka entropia
źródło łukowe
osadzanie
powłoki wieloskładnikowe
Opis:
Nitride nanostructured coatings, which are based on high entropy alloys implanted with high doses of N + ions to 10X18 cm2 with an energy of 60 KeV were investigated. The coatings were deposited by vacuum circuit-arc method of cathode evaporation on steel samples when applying different potential on the steel substrate and the residual pressure in the chamber. The chamber was supplied by molecular nitrogen for nitride formation. Several methods such as SIMS, EDS, and XRD were used for elemental composition analysis of the coating. A scanning electron microscope with energy dispersive spectrometry was used in order to study the surface of the multi-component coatings and their elemental composition and distribution of elements on the surface coating. Nanohardness and elastic modulus were studies in dynamic mode at Triboindentor. Introduction of N atoms into the lattice led to the formation of solid solution. Nanostructured coatings obtained by vacuum-arc deposition with high micro-strain action show high hardness values (up to 32 GPa) due to the difference in atomic radius of the crystal lattices metal components. The coefficient of friction was in the range of 0.18 to 0.25. Deposited nanostructured films with the given mechanical properties may be used for wear resistant or protective coatings.
Przebadano nanostrukturalne powłoki azotków o wysokiej entalpii, które wytworzono z wykorzystaniem implantacji jonami N+ przy zastosowaniu dużych gęstości jonów 10x18 cm2 i wysokiej energii 60 keV. Powłoki osadzano łukową metodą próżniową na próbkach ze stali, stosując zróżnicowany potencjał polaryzacji podłoża oraz zróżnicowane ciśnienie azotu w komorze. Do badań składu chemicznego powłoki zastosowano następujące metody: RBS, SIMS, EDS i XRD. Skaningowy mikroskop elektronowy z dyspersją energii zastosowano do badania powierzchni powłok wieloskładnikowych i ich składu chemicznego i rozmieszczenia pierwiastków na przekroju powłoki. Do badania nanotwardości i modułu sprężystości wykorzystano Triboindentor. Badania wykazały, że wprowadzenie atomów N do sieci krystalicznej powłoki prowadzi do tworzenia roztworu stałego. Po-włoka nanostrukturalna uzyskana łukową metodą próżniową charakteryzuje się wysoką twardością (do 32 GPa) ze względu na wysoki stan naprężeń wywołany różnicą średnic atomowych pierwiastków składowych powłoki. Współczynnik tarcia powłoki jest w zakresie od 0,18 do 0,25. Osadzone nanostrukturalne powłoki o dobrych właściwościach mechanicznych mogą być stosowane jako odporne na zużycie powłoki ochronne.
Źródło:
Tribologia; 2016, 269, 5; 195-207
0208-7774
Pojawia się w:
Tribologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modification of Ni-Based Plasma Detonation Coatings by a Low-Energy DC E-Beam
Autorzy:
Alontseva, D.
Krasavin, A.
Pogrebnjak, A.
Russakova, A.
Powiązania:
https://bibliotekanauki.pl/articles/1400454.pdf
Data publikacji:
2013-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.15.-z
81.07.-b
68.47.Gh
Opis:
The paper presents the study of Ni-based coatings deposited by plasma detonation onto a steel substrate after direct current low-energy electron beam irradiation and proposes explicit parameters of the electron beam for modification of coatings by irradiation. The choice of irradiation modes is based on the calculation of the temperature profile in the Ni-Fe two-layer absorbents using numerical simulation methods. It was found that the exposure of coatings to irradiation according to the recommended modes leads to the evolution of the structural-phase state of coatings and substantial improvement of performance properties of modified surfaces. The wear resistance of modified surfaces increases 3 times, the microhardness increases on the average 25%.
Źródło:
Acta Physica Polonica A; 2013, 123, 5; 867-870
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Cu Negative Ion Implantation on Physical Properties of $Zn_{1-x}Mn_xTe$ Films
Autorzy:
Pogrebnjak, A.
Shypylenko, A.
Amekura, H.
Takeda, Y.
Opanasyuk, A.
Kurbatov, D.
Kolotova, I.
Klymov, O.
Kozak, C.
Powiązania:
https://bibliotekanauki.pl/articles/1400485.pdf
Data publikacji:
2013-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.05.cp
61.72.uj
Opis:
The paper deals with the investigations of structural properties of $Zn_{1-x}Mn_xTe$ films, which were fabricated under various deposition conditions using the thermal evaporation method in a closed volume. The surface morphology of the samples was studied, the phase analysis of their structures was performed, the elemental analysis of the films and the crystal lattice constant were investigated. The texture perfection of the films before and after copper ion implantation was evaluated.
Źródło:
Acta Physica Polonica A; 2013, 123, 5; 939-942
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
High Temperature Annealing of Ion-Plasma Nanostructured Coatings Based on $AlN-TiB_2(TiSi_2)$
Autorzy:
Pogrebnjak, A.
Abadias, G.
Bondar, O.
Sobol, O.
Beresnev, V.
Pshyk, A.
Demianenko, A.
Belovol, K.
Kolesnikov, D.
Komsta, H.
Powiązania:
https://bibliotekanauki.pl/articles/1365953.pdf
Data publikacji:
2014-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.60.Dv
68.37.-d
62.20.-x
Opis:
The coatings investigated in this paper were deposited via the magnetron sputtering of $AlN-TiB_2-Ti-Si_2$ target in Ar atmosphere. The investigation of structural-phase composition, element composition, morphology and mechanical properties before and after annealing up to 1350°C was carried out. The concentration of elements in the coating was changed after annealing at 900°C and further annealing at 1350°C (especially after annealing at 1350°C). The hardness of as-deposited coatings was 15 GPa, but after annealing at 1350°C the value of hardness increased up to 22÷23.5 GPa. The value of the viscoplastic index was 0.07. All this provide high damping properties of the coating, and amorphous-like structure makes promising the use of these coatings as diffusion barriers in the form of independent elements, and as a contacting layer in multilayer wear resistant coatings.
Źródło:
Acta Physica Polonica A; 2014, 125, 6; 1284-1287
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of Nanoscale TiN/MoN Multilayered Systems, Fabricated Using Arc Evaporation
Autorzy:
Pogrebnjak, A.
Bondar, O.
Abadias, G.
Eyidi, D.
Beresnev, V.
Sobol, O.
Postolnyi, B.
Zukowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/1402193.pdf
Data publikacji:
2015-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.46.-w
62.20.Qp
62.25.-g
Opis:
Using the vacuum-arc evaporation method we fabricated periodic multilayered TiN/MoN structures with different bilayer periods λ ranging from 8 to 100 nm. We found that molybdenum nitride and titanium nitride layers grown on steel show local partial epitaxy and columnar growth across interfaces. A molybdenum-titanium carbide interlayer was evidenced between the substrate and the multilayer. Molybdenum nitride and titanium nitride layers contain small (5÷30 nm) grains and are well crystallized with (100) preferred orientation. They were identified as stoichiometric fcc TiN and cubic γ-M₂N. Non-cubic molybdenum nitride phases were also detected. The hardness of the obtained structures achieved great values and maximal hardness was 31÷41.8 GPa for the multilayered structure with a 8 nm period. Hardness of the obtained coatings is 25÷45% higher in comparison with the initial single-layer nitride coatings, plasticity index of multilayered structure is 0.075.
Źródło:
Acta Physica Polonica A; 2015, 128, 5; 836-840
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structure and Properties of Multilayer Nanostructured Coatings TiN/MoN Depending on Deposition Conditions
Autorzy:
Pogrebnjak, A.
Abadias, G.
Bondar, O.
Postolnyi, B.
Lisovenko, M.
Kyrychenko, O.
Andreev, A.
Beresnev, V.
Kolesnikov, D.
Opielak, M.
Powiązania:
https://bibliotekanauki.pl/articles/1365941.pdf
Data publikacji:
2014-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.46.-w
62.20.Qp
62.25.-g
Opis:
This work presents the results of TiN/MoN coatings studying. These multilayer nanostructured coatings demonstrate dependence on depositions conditions on nanometer level. The influence of nanosized monolayer thickness on structure changing and properties of nanocomposite multilayer coatings TiN/MoN was found. Multilayer TiN/MoN coatings of the total thickness from 6.8 to 8.2 μm were obtained using C-PVD method. Thicknesses of monolayers were 2, 10, 20, 40 nm. The structure of samples was studied using X-ray diffraction (Bruker D-8 Advance) in Cu $K_{α}$ radiation, high resolution transmission electron microscopy with diffraction CFEI EO Techai F200, scanning electron microscopy with energy dispersive X-ray spectroscopy (JEOL-7001F), and microhardness measurements in dependence on indenter load. Scratch tests (friction, wear, etc.) were also provided using Rockwell-C diamond indenter (CSM Revetest Instruments) with a tip radius of 200 μm. Friction and wear behavior were evaluated using ball-on-plate sliding test on a UMT-3MT tribometer (CETR, USA). With decreasing monolayer thickness the hardness value increases, and the size of nanograins reduces. The values obtained for the friction coefficient of the multilayer system is much smaller than in nanostructured coatings of TiN (nc) or MoN (nc). Annealing showed formation of a (Ti,Mo)N solid solution and small growth of nanocrystals.
Źródło:
Acta Physica Polonica A; 2014, 125, 6; 1280-1283
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structure and Properties of Nano- and Microcomposite Coating Based on Ti-Si-N/WC-Co-Cr
Autorzy:
Pogrebnjak, A.
Shpak, A.
Beresnev, V.
Il'yashenko, M.
Komarov, F.
Shypylenko, A.
Kaverin, M.
Zukovski, P.
Kunitskyi, Y.
Kolesnikov, D.
Kolisnichenko, O.
Makhmudov, N.
Powiązania:
https://bibliotekanauki.pl/articles/1503969.pdf
Data publikacji:
2011-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.46.-w
62.20.Qp
62.25.-g
Opis:
Using the two technologies: plasma-detonation and vacuum-arc deposition, we fabricated two types of coatings: Ti-Si-N/WC-Co-Cr/steel and Ti-Si-N/steel. We found that the top coating of Ti-Si-N was nanostructured one with 12 to 15 nm grain sizes and H = 40 to 38 GPa hardness. A thick coating which was deposited using the pulsed plasma jet, demonstrated 11 to 15.3 GPa hardness, an elastic modulus (E) changing within 176 to 240 GPa, and tungsten carbide grain dimensions varying from 150 to 350 nm to several microns. An X-ray diffraction analysis shows that the coating has the following phase composition: TiN, (Ti,Si)N solid solution, WC, $W_2C$ tungsten carbides. An element analysis was performed using energy dispersive spectroscopy (microanalysis) and scanning electron microscopy, as well as the Rutherford backscattering of $\text{}^4He^{+}$ ion and the Auger electron spectroscopy. Surface morphology and structure were analyzed using scanning electron microscopy and scanning tunnel microscopy. Tests friction and resistance (cylinder-plane) demonstrated essential resistance to abrasive wear and corrosion in the solution. The decrease of grain dimensions ≤ 10 nm occurring in the top Ti-Si-N coating layer increased the sample hardness to 42 ± 2.7 GPa under $Ti_{72}-Si_8-N_{20}$ at.% concentration.
Źródło:
Acta Physica Polonica A; 2011, 120, 1; 100-104
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multicomponent (Ti-Zr-Hf-V-Nb)N Nanostructure Coatings Fabrication, High Hardness and Wear Resistance
Autorzy:
Pogrebnjak, A.
Beresnev, V.
Kolesnikov, D.
Bondar, O.
Takeda, Y.
Oyoshi, K.
Kaverin, M.
Sobol, O.
Krause-Rehberg, R.
Karwat, C.
Powiązania:
https://bibliotekanauki.pl/articles/1400429.pdf
Data publikacji:
2013-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.46.-w
62.20.Qp
62.25.-g
Opis:
First results in the field of synthesis and research of the multicomponent (Ti-Zr-Hf-V-Nb)N nanostructured coatings are presented in the paper. Influence of processes of spinodal segregation and mass-transfer on single-layered or multilayered crystal boundary (second phase) forming were explored. Superhard nanostructured coatings were investigated before and after annealing at the temperature 600°C using unique methods (slow positron beam, proton microbeam particle induced X-ray emission-μ, Rutherford backscattering-analysis, scanning electron microscopy with energy dispersive X-ray spectroscopy, X-ray diffraction analysis was performed using DRON-4 and nanoindentor). Diffraction spectra were taken point-by-point, with a scanning step 2Θp=0.05 to 0.1°. We detected that positron trapping by defects was observed on the nanograins boundaries and interfaces (vacancies and nanopores which are the part of triple and larger grain's boundary junction). The 3D distribution maps of elements obtained by the proton microbeam (particle induced X-ray emission-μ) together with the results obtained by slow positron microbeam gave us comprehensive information about physical basis of the processes, connected with diffusion and spinodal segregation in superhard coatings.
Źródło:
Acta Physica Polonica A; 2013, 123, 5; 816-818
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Deposition Parameters and Thermal Annealing on the Structure and Properties of Nitride Coatings (TiHfZrVNb)N
Autorzy:
Pogrebnjak, A.
Abadias, G.
Chartier, P.
Bondar, O.
Yakuschenko, I.
Takeda, Y.
Krause-Rehberg, R.
Kolesnikov, D.
Beresnev, V.
Partyka, J.
Powiązania:
https://bibliotekanauki.pl/articles/1365973.pdf
Data publikacji:
2014-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.46.-w
62.20.Qp
62.25.-g
Opis:
Results of structure, phase composition, physical and mechanical properties and tribological properties investigations of nitride high-entropy coatings (TiZrHfVNb)N are presented in the paper. Proton microbeam (μ-PIXE), X-ray diffraction method, including method of X-ray strains measurements, energy dispersive X-ray spectroscopy and scanning electron microscopy analysis, microhardness testing and nanoindentation were used. Thermal annealing (t=600°C) influence on defect profiles, structure and element distribution in the coatings was investigated. It was found that thermal treatment of coatings leads to changing of defect profiles and to element redistribution. Also we can say that it influences less on grain size changing. Investigated (TiZrHfVNb)N coatings demonstrate high values of hardness and excellent wear resistance.
Źródło:
Acta Physica Polonica A; 2014, 125, 6; 1296-1298
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-9 z 9

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