scholarly journals Influence of Bias Potential Magnitude on Structural Engineering of ZrN-Based Vacuum-Arc Coatings

2021 ◽  
Vol 22 (1) ◽  
pp. 66-72
Author(s):  
O.V. Sobol’ ◽  
H.O. Postelnyk ◽  
N.V. Pinchuk ◽  
A.A. Meylekhov ◽  
M.A. Zhadko ◽  
...  
Keyword(s):  
Functional Properties ◽  
Structural Engineering ◽  
Preferred Orientation ◽  
Vacuum Arc ◽  
Negative Bias ◽  
Crystal Lattices ◽  
Bias Potential ◽  
The Creation ◽  
Modern Technologies

The creation of the scientific foundations for the structural engineering of ultrathin nanolayers in multilayer nanocomposites is the basis of modern technologies for the formation of materials with unique functional properties. It is shown that an increase in the negative bias potential (from -70 to -220 V) during the formation of vacuum-arc nanocomposites based on ZrN makes it possible not only to control the preferred orientation of crystallites and substructural characteristics but also changes the conditions for conjugation of crystal lattices in ultrafine (about 8 nm) nanolayers.

scholarly journals STRUCTURAL ENGINEERING OF NbN/Cu MULTILAYER COATINGS BY CHANGING THE THICKNESS OF THE LAYERS AND THE MAGNITUDE OF THE BIAS POTENTIAL DURING DEPOSITION

2019 ◽  
pp. 147-153
Author(s):  
O.V. Sobol’ ◽  
A.A. Andreev ◽  
V.A. Stolbovoy ◽  
D.A. Kolesnikov ◽  
M.G. Kovaleva ◽  
...  
Keyword(s):  
Crystal Lattice ◽  
Layer Thickness ◽  
Structural Engineering ◽  
Structural Phase ◽  
Structural Type ◽  
Niobium Nitride ◽  
Thin Layers ◽  
Vacuum Arc ◽  
Growth Surface ◽  
Bias Potential

To determine the patterns of structural engineering of vacuum-arc coatings based on niobium nitride in the NbN/Cu multilayer composition, the effect of layer thickness and bias potential on the structural-phase state and physico-mechanical characteristics of vacuum-arc coatings was studied. It was found that the metastable δ-NbN phase (cubic crystal lattice, structural type NaCl) is formed in thin layers (about 8 nm thick) regardless of Ub. With a greater thickness of the layers of niobium nitride (in the multilayer NbN/Cu composition), the phase composition changes from metastable δ-NbN to the equilibrium ε-NbN phase with a hexagonal crystal lattice. An increase in the bias potential during deposition from -50 to -200 V mainly affects the change in the preferential orientation of crystallite growth. The highest hardness (28.2 GРa) and adhesive resistance is achieved in coatings obtained at Ub = -200 V with the smallest layer thickness. The highest hardness corresponds to the structurally deformed state in which the crystallite texture is formed with the [100] axis perpendicular to the growth surface, as well as a large microstrain (1.5%) in crystallites.

Possibilities of structural engineering in multilayer vacuum-arc ZrN/CrN coatings by varying the nanolayer thickness and application of a bias potential

2016 ◽  
Vol 61 (7) ◽  
pp. 1060-1063 ◽  
Author(s):  
O. V. Sobol’ ◽  
A. A. Andreev ◽  
V. F. Gorban’ ◽  
V. A. Stolbovoy ◽  
A. A. Melekhov ◽  
...  
Keyword(s):  
Structural Engineering ◽  
Vacuum Arc ◽  
Bias Potential ◽  
Nanolayer Thickness ◽  
Crn Coatings

MEDIATEXT IS A TOOL THAT DETERMINES THE QUALITY OF INFORMATION

2020 ◽  
Vol 6 (3) ◽  
pp. 158-164
Author(s):  
Navruza Yakhyayeva ◽  
Keyword(s):  
Functional Properties ◽  
Linguistic Features ◽  
Text Linguistics ◽  
Quality Of Information ◽  
The Creation ◽  
Linguistic Units ◽  
Scientific Classification

The quality and content of information in the article media text is based on scientific classification of linguistic features. The study of functional styles of speech, the identification of their linguistic signs, the discovery of the functional properties of linguistic units and their separation on the basis of linguistic facts is one of thetasks that modern linguistics is waiting for a solution. Text Linguistics, which deals with the creation, modeling of its structure and the study of the process of such activity, is of interest to journalists today as a science.

Structural Engineering of the Multilayer Vacuum Arc Nitride Coatings Based on Ti, Cr, Mo and Zr

2017 ◽  
Vol 9 (3) ◽  
pp. 03003-1-03003-6 ◽  
Author(s):  
O. V. Sobol ◽  
◽  
A. A. Postelnyk ◽  
A. A. Meylekhov ◽  
A. A. Andreev ◽  
...  
Keyword(s):  
Structural Engineering ◽  
Vacuum Arc ◽  
Nitride Coatings

scholarly journals Energy Transition in Poland—Assessment of the Renewable Energy Sector

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2046
Author(s):  
Michał Bernard Pietrzak ◽  
Bartłomiej Igliński ◽  
Wojciech Kujawski ◽  
Paweł Iwański
Keyword(s):  
Renewable Energy ◽  
Energy Transition ◽  
Biomass Energy ◽  
The Public ◽  
Critical Situation ◽  
Low Emission ◽  
Harmful Substances ◽  
The Creation ◽  
Modern Technologies ◽  
New Jobs

The topic of the article considers the functioning of the renewable energy (RE) sector in Poland. This is really important in the context of the energy transition of the national economy because it influences the creation of modern technologies and increases the competitiveness and innovation of the country. Poland is in a process of energy transition where the RE sector has been developing for two decades. The authors aimed to research the RE sector improvement possibilities in Poland, including the influence of this sector on chosen social and economic aspects. Because of this research’s aim a critical situation assessment of RE in Poland was conducted and a survey of a group of experts in this field was also involved. Legal, physical and mental determinants and their influence on RE sector were looked into. In the legal determinant context a necessity to simplify relevant legislation acts in Poland was found. Undoubtedly there is a need to improve several legal acts, including the Distance Act. In physical determinants it was found that solar, wind and biomass energy have the biggest chances for development. In the case of mental determinants the authors paid attention to the need of educating the public about using and obtaining energy. It is also important to make people aware how the RE sector influences the low emission economy positively. This will improve the creation of new jobs and reduce the emissions of harmful substances to the environment.

Semantic Web-Linked Data and Libraries

2020 ◽  
pp. 27-42 ◽  
Author(s):  
Wasim Rahaman
Keyword(s):  
Semantic Web ◽  
Information Society ◽  
Linked Data ◽  
Significant Activity ◽  
Digital Information ◽  
Huge Impact ◽  
The Creation ◽  
Modern Technologies

The present society is considered an information society. A society where the creation, distribution, use, integration, and manipulation of digital information have become the most significant activity in all aspects. Information is producing from every sector of any society, which has resulted in an information explosion. Modern technologies are also having a huge impact. So managing this voluminous information is really a tough job. Again WWW has opened the door to connect anyone or anything within a fraction of a second. This study discussed the Semantic Web and linked data technologies and their effect and application to libraries for the handling of various types of resources.

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