https://www.elibrary.ru/title_about_new.asp?i
1605-8119
Materials physics and mechanics
41
1
2019
1-124
RAR
RUS
1-7
Belarusian State University of Informatics and Radioelectronics
Labunov
Minsk, Belarus
Belarusian State University of Informatics and Radioelectronics
Tabulina
Minsk, Belarus
Belarusian State University of Informatics and Radioelectronics
Komissarov
Minsk, Belarus
Belarusian State University of Informatics and Radioelectronics
Mikhnavets
Minsk, Belarus
Belarusian State University of Informatics and Radioelectronics
Tkach
Minsk, Belarus
Reduction of graphene from graphene oxide in different media
Features of the reduction of graphene from graphene oxide in media containing hydrazine hydrate, ethylene glycol, and hydrogen are studied. X-ray energy dispersive spectroscopy, Raman spectroscopy, and scanning electron microscopy data indicate that this process proceeds through the high-temperature annealing of graphene oxide in a hydrogen environment.
10.18720/MPM.4112019_1
graphene
graphene oxide
Hummers method
nanostructure
reduction
https://mpm.spbstu.ru/article/2019.67.1/
MPM141_01_labunov.pdf
RAR
RUS
8-14
Belarusian State University of Informatics and Radioelectronics
Lazarouk
Minsk, Belarus
Belarusian State University of Informatics and Radioelectronics
Dolbik
Minsk, Belarus
Belarusian State University of Informatics and Radioelectronics
Labunov
Minsk, Belarus
Mechanical impulse enhancement in a microsystem based on nanoporous silicon combustion
Nanostructured porous silicon impregnated by solid state oxidizer has been studied in order to provide the mechanical impulse for jet-propulsion microsystems. The system with jet-propulsion motion on a silicon chip has been tested for impulse measurements. The silicon chip has been fastened on a carrying platform through an elastic spacer. The elastic spacer promotes the combustion and prevents from explosion of porous silicon fast oxidation. It is shown that such a microsystem gains the impulse up to 200-220 mN·s.
10.18720/MPM.4112019_2
combustion
explosion
mechanical pulse
microthruster
multichip structure
nanoporous silicon
https://mpm.spbstu.ru/article/2019.67.2/
MPM141_02_lazarouk.pdf
RAR
RUS
15-18
Belarusian State University of Informatics and Radioelectronics
Sidorova
Minsk, Belarus
Belarusian State University of Informatics and Radioelectronics
Danilyuk
Minsk, Belarus
Electron tunneling to the surface states at photocatalysis
Simulation of tunneling electrons excited by the sunlight in TiO2 to surface states is performed for TiO2/Si nanostructure. The tunneling transmission coefficient of the surface states created by organic compounds was calculated by phase function method. Dependence of the transmission coefficient of tunneling electrons on potential barrier parameters is explained by interference of transmitted and reflected waves.
10.18720/MPM.4112019_3
phase function method
TiO2/Si nanostructure
transmission
tunneling electron
https://mpm.spbstu.ru/article/2019.67.3/
MPM141_03_sidorova.pdf
RAR
RUS
19-29
Belarusian State University of Informatics and Radioelectronics
Volcheck
Minsk, Belarus
Belarusian State University of Informatics and Radioelectronics
Stempitsky
Minsk, Belarus
Leakage current in AlGaN Schottky diode in terms of the phonon-assisted tunneling model
The leakage current in the AlGaN Schottky diode under a reverse bias is simulated and compared within the frameworks of the thermionic emission-diffusion and phononassisted tunneling models. It is shown that the phonon-assisted tunneling model is suitable to describe the reverse-bias characteristic of the AlGaN Schottky contact and can also be applied to calculate the gate leakage current in the AlGaN/GaN high electron mobility transistor.
10.18720/MPM.4112019_4
leakage current
Schottky diode
thermionic emission
tunneling electron
https://mpm.spbstu.ru/article/2019.67.4/
MPM141_04_volcheck.pdf
RAR
RUS
30-35
St. Petersburg Electrotechnical University LETI
Ivanova
St.Petersburg, Russia
St. Petersburg Electrotechnical University LETI
Zubkov
St.Petersburg, Russia
Study of thermionic-tunnel component contribution in heterostructures of InGaAs/GaAs with a single quantum well by admittance methods
A study of InxGa1-xAs/GaAs heterostructures with single quantum well (SQW) carried out by admittance methods demonstrates two competing emission mechanisms for carriers: thermionic and tunnel. The dependence of thermionic conductance peaks on the reverse bias has resonance character. We noticed a temperature independent plateau on the conductance-temperature spectra, which is always related to the tunnel nature. We guess the observed effect is the resonant tunneling through the two-barrier potential formed at the QW borders due to doping.
10.18720/MPM.4112019_5
admittance
heterostructure
single quantum well
thermionic
tunnel
https://mpm.spbstu.ru/article/2019.67.5/
MPM141_05_ivanova.pdf
RAR
RUS
36-44
Peter the Great St. Petersburg Polytechnic University
Melker
A.I.
St.Petersburg, Russia
Peter the Great St. Petersburg Polytechnic University
Vorobyeva
St.Petersburg, Russia
Peter the Great St. Petersburg Polytechnic University
Zarafutdinov
St.Petersburg, Russia
Modeling fullerene growth by fusion reactions of cupola half-fullerenes: Δn=16 series
Fusion reactions of cupola half-fullerenes C22, C24, C32, C40 and C48 with each other are considered on the basis of Arrhenius’s postulate. It means that at first there forms an intermediate compound and only afterwards a usual chemical reaction is going on. The final structure of fullerenes is obtained with the help of geometric modeling and is optimized through the use of Avogadro package. In general, the fullerenes which tend to take the appearance of a perfect spheroid have lesser formation energy. The energy of nanotubes and fullerenes C44, C48, C64, C80 and C96 obtained is calculated.
10.18720/MPM.4112019_6
cluster
cupola
energy
fullerene
fusion
modeling
https://mpm.spbstu.ru/article/2019.67.6/
MPM141_06_melker.pdf
RAR
RUS
45-51
Peter the Great St. Petersburg Polytechnic University
Melker
A.I.
St.Petersburg, Russia
Peter the Great St. Petersburg Polytechnic University
Krupina
St.Petersburg, Russia
Peter the Great St. Petersburg Polytechnic University
Zarafutdinov
St.Petersburg, Russia
Sumanene and fullerene C60
In this contribution we have considered fusion reaction of carbon clusters obtained from the natural blocks of sumanene. We obtained four natural isomers of fullerene C60. Together with the fifth natural isomer found elsewhere through the use of the Endo-Kroto mechanism (dimer embedding model), now we have the structure of all the experimentally observed isomers of fullerene C60. One isomer is a perfect, the other are imperfect and differ in the number of pairs of two adjacent pentagons.
10.18720/MPM.4112019_7
fullerene
fusion reaction
graph
natural isomer
sumanene
https://mpm.spbstu.ru/article/2019.67.7/
MPM141_07_melker.pdf
RAR
RUS
52-61
Peter the Great St. Petersburg Polytechnic University
Melker
A.I.
St.Petersburg, Russia
Peter the Great St. Petersburg Polytechnic University
Starovoitov
St.Petersburg, Russia
Peter the Great St. Petersburg Polytechnic University
Zarafutdinov
St.Petersburg, Russia
Tetrahedral mini- and midi-fullerenes
We have considered possible ways of forming the simplest tetrahedral fullerenes, namely elementary tetrahedron C4, truncated tetrahedron C12, half-truncated cube C16, fullerenes C28 and C36. By analogy with ionic crystals, we introduced "mathematical" compounds, which form a topological cube of two tetrahedra inserted into each other, and construct graphs for them. Combined with the graph analysis, this approach allows obtain a clear knowledge of the tetrahedral fullerene structure. We extended our model to other tetrahedral fullerenes, in particular, tetrahedral fullerenes C64 and C76.
10.18720/MPM.4112019_8
energy
fusion reaction
graph representation
growth
mathematical compound
periodic system
tetrahedral fullerene
topological cube
https://mpm.spbstu.ru/article/2019.67.8/
MPM141_08_melker.pdf
RAR
RUS
62-68
Hangzhou Dianzi University
Huang
Hangzhou, China
Hangzhou Dianzi University
Su
Hangzhou, China
Hangzhou Dianzi University
Sun
Hangzhou, China
Hangzhou Dianzi University
Liu
Hangzhou, China
Belarusian State University of Informatics and Radioelectronics
Sasinovich
Minsk, Belarus
Belarusian State University of Informatics and Radioelectronics
Kupreeva
Minsk, Belarus
Belarusian State University of Informatics and Radioelectronics
Tsirkunov
Minsk, Belarus
Belarusian State University of Informatics and Radioelectronics
Rabatuev
Minsk, Belarus
Belarusian State University of Informatics and Radioelectronics
Lazarouk
Minsk, Belarus
Effect of anodic voltage on parameters of porous alumina formed in sulfuric acid electrolytes
Local porous aluminum anodizing with a photolithography mask has been carried out at anodic voltages varying from 15 to 200 V in sulfuric acid electrolytes. Record anodic voltages at room temperature have been achieved leading to new parameters of porous alumina such as interpore distance up to 320 nm, forming cell factor up to 1.2 nm/V, thickness expansion factor up to 3.5, porosity up to 1%, sulfur concentration up to 7.7 at.%. A central angle of porous alumina cells has been measured in concave points as well as in peak points of porous alumina cells at the border with aluminum. The measurements have shown that central angles can reach 90° at anodic voltages larger than 100 V. The electric field distribution in porous alumina cells has been simulated for different central angles. It is found that the electric field reaches 2.7 × 1010 V/m in the layers with a porosity of 1% in growing alumina.
10.18720/MPM.4112019_9
combustion
explosion
mechanical pulse
microthruster
multichip structure
nanoporous silicon
https://mpm.spbstu.ru/article/2019.67.9/
MPM141_09_huang.pdf
RAR
RUS
69-73
Belarusian State University of Informatics and Radioelectronics
Timoshkov
Minsk, Belarus
Minsk Institute of Management
Kurmashev
Minsk, Belarus
Belarusian State University of Informatics and Radioelectronics
Sakova
Minsk, Belarus
Belarusian State University of Informatics and Radioelectronics
Timoshkov
Minsk, Belarus
Nanostructured composite materials for 3D elements of advanced optical systems
Nanocomposite materials electroplating for nano- and micro-fabrication with Si mold and LIGA-like technological process is proposed. UV lithography based on SU-8 photoresist for ultra-thick 3D structures is described. Two-stage process for high aspect ratio vertical metal structures fabrication is considered. Possible applications of the proposed technological approaches for advanced optical systems are described.
10.18720/MPM.4112019_10
nanocomposite electroplating
nanostructured material
optical system
photoresist
https://mpm.spbstu.ru/article/2019.67.10/
MPM141_10_timoshkov.pdf
RAR
RUS
74-77
Belarusian State University of Informatics and Radioelectronics
Lushpa
Minsk, Belarus
Belarusian State University of Informatics and Radioelectronics
Dinh
Minsk, Belarus
Belarusian State University of Informatics and Radioelectronics
Chernyakova
Minsk, Belarus
Belarusian State University of Informatics and Radioelectronics
Vrublevsky
Minsk, Belarus
Morphology investigation of nanoporous anodic alumina films with image analysis
Aluminum films approximately 100 nm thick were deposited on silicon substrates (SiO2 / Si) by thermal evaporation in a vacuum. Porous anodic alumina films were obtained in a potentiostatic mode at 20 V in 0.3 M aqueous solution of oxalic acid and 1.8 M aqueous solution of sulfuric acid. The main pore diameter was determined using the ImageJ software from SEM images. An algorithm determining the pore diameter in porous anodic alumina films was developed. In the nanoporous alumina films formed in sulfuric acid at 20 V the average pore diameter was 12.3 ± 0.1 nm. In the case of the oxalic acid electrolyte, the nanoporous alumina films formed at 20 V had an average pore diameter of 14.8 ± 0.1 nm. The obtained results are in a good agreement with the literature.
10.18720/MPM.4112019_11
anodic alumina
pore diameter
SEM image
surface morphology
https://mpm.spbstu.ru/article/2019.67.11/
MPM141_11_lushpa.pdf
RAR
RUS
78-83
Vladimir State University
Makarov
Vladimir, Russia
Physical and information parameters of nanoscale electronic elements as a part of computing systems with neural network architecture
Problem of ensuring specified reliability indices when designing computation components of the telecommunication systems built via use of a nanoscale electronic element base is considered. Computer models of the computation components with neural network architecture and integrated nanoscale titanium oxide-based memristors and nanoscale graphene-based field-effect transistors are studied. Correlation between the physical and information parameters, integrated into the system of nanoscale electronic elements, as well as an impact of parameter variation on the system reliability, has been investigated.
10.18720/MPM.4112019_12
computing system
graphene
nanoscale
neural network
transistor
https://mpm.spbstu.ru/article/2019.67.12/
MPM141_12_makarov.pdf
RAR
RUS
84-87
0000-0002-3012-1407
Peter the Great St. Petersburg Polytechnic University
Matvienko
St.Petersburg, Russia
Giricond, JSC
Teslenko
St.Petersburg, Russia
Giricond, JSC
Shtelmah
St.Petersburg, Russia
Use of X-ray analysis for conducting input and process control of electronics materials
The paper presents examples of using X-ray diffraction and X-ray phase analysis for monitoring and researching materials for electronic equipment.
10.18720/MPM.4112019_13
crystal lattice parameter
diffraction line
materials for electronic equipment
phase composition
technological control
X-ray phase analysis
https://mpm.spbstu.ru/article/2019.67.13/
MPM141_13_matvienko.pdf
RAR
RUS
88-90
Vladimir State University
Denisov
Vladimir, Russia
Effect of cooling rate on the crystallization of aluminum alloys under pressure
The influence of pressure on the compressibility of liquid metal and the release of latent crystallization heat is studied. It is found that the pressure application combined with the cooling rate creates metastable structures. It can be used for improvement the properties of metals and alloys.
10.18720/MPM.4112019_14
aluminum alloy
cooling
crystallization
microstructure
pressure
https://mpm.spbstu.ru/article/2019.67.14/
MPM141_14_denisov.pdf
RAR
RUS
91-96
Yanka Kupala Grodno State University
Ivanov
Grodno, Belarus
Yanka Kupala Grodno State University
Kapytski
Grodno, Belarus
Yanka Kupala Grodno State University
Vasiliev
Grodno, Belarus
Evolution of steam and gas plume generation on laser treating of metals in liquid
Evolution of steam and gas plume generation on the surface of an irradiated metal was investigated experimentally. It is shown that on using GOR-100M operating in a free oscillating regime the form of a crater developed in an irradiated target beingin water and air differs drastically.It is found that the substantial difference in the forms of crater surfaces developed is determined by different character of plasma, steam and gas mixture flow.
10.18720/MPM.4112019_15
fast holographic filming
laser radiation
steam and gas mixture flow
https://mpm.spbstu.ru/article/2019.67.15/
MPM141_15_ivanov.pdf
RAR
RUS
97-102
Yanka Kupala Grodno State University
Ivanov
Grodno, Belarus
Yanka Kupala Grodno State University
Kapytski
Grodno, Belarus
Yanka Kupala Grodno State University
Vasiliev
Grodno, Belarus
Influence of an external electric field on particle generation during laser-plasma treating of metals
Evolution of plasma torch at the surface of some metals (Cu, Al, Sn, Pb) induced by varying external electric field of different polarity from 0 to 106 V/m-1 in the course of laser processing with the mean radiation flux density ∼106 W/cm–2 is studied. A size of the target material droplets, carried out from the irradiated zone, becomes several times less, as the field strength amplitude grows, independently of the field polarity.
10.18720/MPM.4112019_16
fast holographic filming
laser radiation
strip projection method
https://mpm.spbstu.ru/article/2019.67.16/
MPM141_16_ivanov.pdf
RAR
RUS
103-110
Peter the Great St. Petersburg Polytechnic University
Berezin
St.Petersburg, Russia
Peter the Great St. Petersburg Polytechnic University
Zayats
St.Petersburg, Russia
Skew Brownian motion with dry friction: Pugachev−Sveshnikov approach
The Caughey−Dieness process, also known as the Brownian motion with two valued drift, is used in theoretical physics as an advanced model of the Brownian particle velocity if the resistant force is assumed to be dry friction. This process also appears in many other fields such as applied physics, mechanics, astrophysics, and pure mathematics. In the present paper we are concerned with a more general process, skew Brownian motion with dry friction. The probability distribution of the process itself and of its occupation time on the positive half line are studied. The approach based on the Pugachev−Sveshnikov equation is used.
10.18720/MPM.4112019_17
Skew Brownian motion
Pugachev−Sveshnikov equation
dry friction
local time
https://mpm.spbstu.ru/article/2019.67.17/
MPM141_17_berezin.pdf
RAR
RUS
111-115
Nizhny Novgorod R.E. Alekseev State Technical University
Tumasov
Nizhny Novgorod, Russia
Nizhny Novgorod R.E. Alekseev State Technical University
Kostin
Nizhny Novgorod, Russia
Nizhny Novgorod R.E. Alekseev State Technical University
Butin
Nizhny Novgorod, Russia
Nizhny Novgorod R.E. Alekseev State Technical University
Vasiliev
Nizhny Novgorod, Russia
Co Ltd. "Automobile plant "GAZ"
Sereda
Nizhny Novgorod, Russia
Influence of LCV bearing stiffness on its static and dynamic characteristics of stability and steerability
Study of the frame stiffness influence on vehicle dynamics and stability of light commercial vehicle is done. The simulations were conducted by using ADAMS/CAR software package. The model approbation was carried by comparing the results of simulation and real tests. The objects of the studies were four different models of a vehicle having different parameters of the frame rigidity. For the needs of the research where conducted such tests as: "going into corner", "line change" and "tilt test". The results showed that a car with a rigid frame has better handling properties.
10.18720/MPM.4112019_18
frame stiffness
handling
stability
roll over
vehicle dynamics
https://mpm.spbstu.ru/article/2019.67.18/
MPM141_18_tumasov.pdf
RAR
RUS
116-124
CompMechLab Ltd
Morozov
St.Petersburg, Russia
Institute of Problems of Mechanical Engineering RAS
Indeitsev
St.Petersburg, Russia
CompMechLab Ltd
Michailov
St.Petersburg, Russia
Added mass study of plane structures at their various motions
Using FE analysis, this work fully devoted to added masses determination of the plate in infinite liquid in the case of different movements. Various forms and sizes of the plate are considered. The problem consists of two parts: first is studying of the plate motion in liquid as rigid; second is studying of the plate vibrations in its own modes, fixed with a hard screen and contacting with liquid by one side. The condition observance of liquid environment continuity leads to the Laplace equation, which is solved by using numerical approach. Finite element analysis of steady state problem is performed for added masses determination using thermal analogy. A compact analytical solution of the two considered problems is presented. The results of finite element analysis and corresponding analytical results of the problems are compared for the case of infinite liquid environment.
10.18720/MPM.4112019_19
added mass
finite element analysis
vibration mode
Laplace equation
thermal analogy
velocity potential
https://mpm.spbstu.ru/article/2019.67.19/
MPM141_19_morozov.pdf