https://www.elibrary.ru/title_about_new.asp?i
1605-8119
Materials physics and mechanics
37
2
2018
1-109
RAR
RUS
109-117
Southern Federal University
Semenistaya
Taganrog, Russia
Study of the properties of Cu-containing polyacrylonitrile nanostructured gas-sensing films
The Cu-containing polyacrylonitrile (PAN) thin films (0.04 – 0.6 μm thicknesses) were fabricated using IR-pyrolysis in ambient argon in different temperature and time modes.The films were studied by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), transmission electron microscopy (TEM) and atomic force microscopy (AFM). CuCl, Cu2O and Cu crystalline inclusions were obtained in the nanocomposite films b y XRD. The film microstructure was analyzed by AFM and TEM: the typical morphology corresponds to composite film with nanoparticles of 10 nm average size in the polymer matrix. The film electrical resistance was in the range from 4.0·102 to 2.7·1011Ω. The Cu-containing PAN nanocomposite films are promising for application as low-temperature NO2 sensor in 36.5 – 255 ppm concentration range.
10.18720/MPM.3722018_1
IR-pyrolized polyacrylonitrile; electroconductive organic polymers; gas-sensing materials; nanostructured films; AFM; XPS; XRD; TEM
https://mpm.spbstu.ru/article/2018.62.1/
MPM237_01_semenistaya.pdf
RAR
RUS
118-123
Southern Federal University
Avilova
Taganrog, Russia
Southern Federal University
Semenistaya
Taganrog, Russia
Southern Federal University
Plugotarenko
Taganrog, Russia
Surface morphology study of gas-sensitive cobalt-containing polyacrylonitrile nanocomposite films
The paper presents the results of studying the surface morphology of cobalt-containing polyacrylonitrile ( PAN) films from the standpoint of the theory of self-organization and information theory. It is stated that the films surface is a set of fractals. The correlationdimension D and fractal dimension Dfof the fabricated films were calculated. Using the C++ software package program, mutual information of cobalt-containing PAN films surfaces was calculated, resulting in a correlation between the values of gas sensitivity coefficient and the values of average mutual information of cobalt-containing PAN films.
10.18720/MPM.3722018_2
polyacrylonitrile film; self-organization; correlation analysis; fractal analysis; average mutual information
https://mpm.spbstu.ru/article/2018.62.2/
MPM237_02_avilova.pdf
RAR
RUS
124-132
PDPM Indian Institute of Information Technology, Design and Manufacturing
Kumar
India
PDPM Indian Institute of Information Technology, Design and Manufacturing
Jain
India
PDPM Indian Institute of Information Technology, Design and Manufacturing
Tandon
India
Indian Institute of Technology
Pulak Mohan Pandey
India
3D printing of flexible parts using EVA material
In the fused filament fabrication (FFF) process, filament buckling occurs during the processing of elastomers. Elastomer filament buckles between the rollers and liquefier head due to flexibility hence make difficult elastomer processing and extrusion through as mall nozzle. In this paper, ethylene vinyl acetate (EVA), an elastomer has been processed through the in-house developed CNC assisted material deposition tool (MDT). Instead of the filament,the developed system processes the material in the pellet form, which overcomes the limitations of FFF process in elastomer processing. An experimental study has been carried out to find the suitable set of process parameters setting for part fabrication. The fabricated parts show the flexibility similar to rubber, which is suitable for various end-use applications. The present study outcome shows that EVA material has the potential for additive manufacturing of flexible parts.
10.18720/MPM.3722018_3
additive manufacturing; 3D printing; pellet; screw extrusion; flexible; CNC milling machine; hybrid manufacturing; EVA
https://mpm.spbstu.ru/article/2018.62.3/
MPM237_03_kumar.pdf
RAR
RUS
133-139
National Research University of Electronic Technology - MIET
Savelyev
Moscow, Russia
National Research University of Electronic Technology - MIET
Vasilevsky
Moscow, Russia
National Research University of Electronic Technology - MIET
Gerasimenko
Moscow, Russia
National Research University of Electronic Technology - MIET
Ichkitidze
Moscow, Russia
National Research University of Electronic Technology - MIET
Podgaetsky
Moscow, Russia
National Research University of Electronic Technology - MIET
Selishchev
Moscow, Russia
Nonlinear optical characteristics of albumin and collagen dispersions with single-walled carbon nanotubes
The interaction of laser radiation with aqueous dispersion of only bovine serum albumin (BSA) 25 wt. %, only bovine collagen (BC) 2 wt. %, and 25 wt. % BSA with single-walled carbon nanotubes (SWCNTs) 0.3 wt. % and 2 wt. % BC with 0.3 wt. % SWCNT was studied. The beam was absorbed mainly by nanotubes, that confirmed by the small value of the nonlinear absorption coefficients for aqueous dispersed media with BSA 6 cm·GW-1 , as well as dispersion with BK 4 cm·GW-1 and the large values of coefficients for these media with addition of SWCNTs, respectively 350 cm·GW-1 and 70 cm·GW-1 . Determination of nonlinear optical parameters was obtained by the method of fixed sample location. Knowledge of the values of these parameters allowed calculating theoretical curve of Z-scan with open aperture what made possible to compare with the experimental data.
10.18720/MPM.3722018_4
nonlinear optics; laser applications; three-dimensional printing; absorption
https://mpm.spbstu.ru/article/2018.62.4/
MPM237_04_savelyev.pdf
RAR
RUS
140-145
National Research University of Electronic Technology - MIET
Ichkitidze
Moscow, Russia
National Research University of Electronic Technology - MIET
Gerasimenko
Moscow, Russia
National Research University of Electronic Technology - MIET
Podgaetsky
Moscow, Russia
National Research University of Electronic Technology - MIET
Selishchev
Moscow, Russia
Institute of Nanotechnology and Microelectronics of the Russian Academy of Sciences
Dudin
Moscow, Russia
Institute of Nanotechnology and Microelectronics of the Russian Academy of Sciences
Pavlov
Moscow, Russia
Electrical conductivity of the nanocomposite layers for use in biomedical systems
Nanocomposite layers consisting of an acrylic paint and single-walled carbon nanotubes (~1.5 wt.%) have been investigated. The investigated samples had a disk shape with a diameter of 20 ‒ 30 mm and a thickness of 2 ‒ 50 μm. After exposure in water for 350 h, the layer mass remained almost invariable (a mass loss of < 1.5%) and the layer samples exhibited high adhesion to glass substrates and a conductivity of ~ 40 S/m. The layers consisting of the nanotubes and acrylic paint exfoliated from the substrates for ~1 h. After heat treatment at a temperature of 140 °C, all the layers exhibited a semiconductor-type temperature dependence of the resistance. The prospects of using these layers in various medical products, e.g. implants for wireless energy transmission, have been discussed.
10.18720/MPM.3722018_5
acrylic paint; carbon nanotubes; nanocomposite layers; electrical conductivity
https://mpm.spbstu.ru/article/2018.62.5/
MPM237_05_ichkitidze.pdf
RAR
RUS
146-152
National Research University of Electronic Technology - MIET
Ichkitidze
Moscow, Russia
National Research University of Technology (BMSTU)
Belodedov
Moscow, Russia
National Research University of Electronic Technology - MIET
Selishchev
Moscow, Russia
National Research University of Electronic Technology - MIET
Telishev
Moscow, Russia
Magnetic field sensor for non-invasive control medical implants
The magnetomodulation differential weak magnetic-field sensor, based on the Bi-2223 high-temperature superconducting ceramics has been investigated. The high magnetic-field resolution (~20 pT) and wide measurement range (125 – 140 dB) have been obtained. The possibility of using this sensor for noninvasive control of magnetic particles or implanted medical electronic devices in biological objects at a distance of up to 30 mm from the skin surface is discussed.
10.18720/MPM.3722018_6
high-temperature superconducting ceramic; magnetic-field sensor; magnetic-field resolution; noninvasive control; medical implants
https://mpm.spbstu.ru/article/2018.62.6/
MPM237_06_ichkitidze.pdf
RAR
RUS
153-158
National Research University of Electronic Technology - MIET
Ichkitidze
Moscow, Russia
National Research University of Electronic Technology - MIET
Gerasimenko
Moscow, Russia
National Research University of Electronic Technology - MIET
Podgaetsky
Moscow, Russia
National Research University of Electronic Technology - MIET
Selishchev
Moscow, Russia
Layers with the tensoresistive properties and their possible applications in medicine
Layers of different materials, including nanocomposites, containing carbon nanotubes, with the tensoresistive properties are discussed. The investigated layers are divided into two groups: without (group I) and with carbon nanotubes (group II). A group-I material that is the most suitable for fabrication of a tensoresistor is the elastomer with microchannel, filled with a conductive liquid. In group II, these are the (0.2 − 10)-μm-thick layers consisting of the carboxymethylcellulose matrix, filled with multiwalled carbon nanotubes (~5 wt.%). The investigated layers can be used as alternative t ensoresistors for medical applications.
10.18720/MPM.3722018_7
carbon nanotubes; carboxymethylcellulose; nanocomposite layer; tensoresistor.
https://mpm.spbstu.ru/article/2018.62.7/
MPM237_07_ichkitidze.pdf
RAR
RUS
159-167
PDPM IIITDM Jabalpur
Singh
India
PDPM IIITDM Jabalpur
Gupta
India
PDPM IIITDM Jabalpur
Mukherjee
India
Piezoelectric based energy harvester embedded in shoe for wearable electronics
Piezoelectric based energy harvesting has become a popular research interest for last few years. This is due to the increasing demand for low-powered portable and wearable electronic devices such as health monitoring sensors. This paper presents two polyvinylidene fluoride (PVDF) based energy harvesters, which can be embedded in shoes to generate electric energy while human walking. One of the harvesters is specially designed as a sandwich structure, placed under the ball of foot, while the other one has curved or oval-shaped structure, placed under the heel of foot. Both harvesters are developed and deployed appropriately in the sole to couple maximum mechanical stress to the piezo-material and achieve high power output. The system was analysed, using mathematical modelling and results are verified by performing experiments in the lab. It has been observed experimentally that sandwich structured harvester produces 4.9 μW across a capacitor of 10 μF while walking at a speed of two step/second (2 Hz). However, for the same capacitor, the curve-shaped harvester produces up to 5.625 μW power. Integrated output power of both energy harvesters was 9.625 μW .
10.18720/MPM.3722018_8
piezoelectric; energy harvesting; PVDF; walking motion; smart materials
https://mpm.spbstu.ru/article/2018.62.8/
MPM237_08_singh.pdf
RAR
RUS
168-175
Southern Federal University
Soloviev
Rostov-on-Don, Russia
Southern Federal University
Parinov
Rostov-on-Don, Russia
Southern Federal University
Cherpakov
Rostov-on-Don, Russia
Southern Federal University
Chebanenko
Rostov-on-Don, Russia
Southern Federal University
Rozhkov
Rostov-on-Don, Russia
Analyzing the output characteristics of a double-console PEG based on numerical simulation
A finite-element simulation of a two-cantilever piezoelectric generator (PEG) is considered. The generator had a bimorph arrangement of piezoelements. Finite element modeling was performed in ANSYS software. The PEG considered is part of an energy generation system, designed to convert mechanical energy from the environment into an electrical energy, with subsequent accumulation. The results of the modal analysis of the first 10 modes of oscillations are present. Harmonic analysis is performed, when damping is taken into account. With the given scheme of electrical connection of PEG elements and various active loads, the results of the output voltage and power for the first four modes are obtained.
10.18720/MPM.3722018_9
double-cantilever piezoelectric generator (PEG); finite-element simulation; ANSYS; modal analysis; harmonic analysis; output characteristics
https://mpm.spbstu.ru/article/2018.62.9/
MPM237_09_soloviev.pdf
RAR
RUS
176-183
Southern Federal University
Yudin
Rostov-on-Don, Russia
Plastic forming model for axisymmetric shells
The mathematical model of plastic forming dome-like shells is present. The forming is performed by pressure from a flat circular plate, clamped along the contour. Point force can be applied in the center. The semi-inverse method is used to resolve this physical and geometrical nonlinear problem.
10.18720/MPM.3722018_10
large deformations; nonlinear mathematical model; semi-inverse method; forming of dome-type shells
https://mpm.spbstu.ru/article/2018.62.10/
MPM237_10_yudin.pdf
RAR
RUS
184-191
Don State Technical University
Miroshnichenko
Rostov-on-Don, Russia
Investigation of the features of stress-strain state in layered cylindrical constructions, manufactured of transverse-isotropic materials, under pulse impact
The paper is devoted to the numerical study and analysis of the characteristics of the stress-strain state in layered cylindrical constructions made of transversely isotropic materials under pulsed loading with a given spatial-temporal distribution
10.18720/MPM.3722018_11
layered cylindrical structure; a pulsed impact; the stress-strain state
https://mpm.spbstu.ru/article/2018.62.11/
MPM237_11_miroshnichenko.pdf
RAR
RUS
192-197
Southern Federal University
Soloviev
Rostov-on-Don, Russia
Southern Federal University
Parinov
Rostov-on-Don, Russia
Southern Federal University
Cherpakov
Rostov-on-Don, Russia
Southern Federal University
Chaika
Rostov-on-Don, Russia
Southern Federal University
Rozhkov
Rostov-on-Don, Russia
Analysis of oscillation forms at defect identification in node of truss based on finite element modeling
The finite element modeling of the truss structure in ANSYS software is considered. The problem of the identification of defects in the truss rod construction was considered on the base of an analysis of the parameters of the vibration modes. A truss rod construction with two defects was modeled. The deflection and curvature of the vibration modes are analyzed. Defective elements are represented in the form of a change in the construction parameter of cross-section, localized in the vicinity of one of the junction nodes of the truss and fastening the rod. Modal analysis of the structure is carried out. The dependence of the eigen-frequencies and parameters of the vibration modes on the magnitude of the defect is considered. The analysis shows that the modal identification signs allow us to identify the defective node in the construction.
10.18720/MPM.3722018_12
truss structure; finite element modeling; ANSYS; oscillation forms; identification of defects; modal analysis
https://mpm.spbstu.ru/article/2018.62.12/
MPM237_12_soloviev.pdf
RAR
RUS
198-204
17 Agustus 1945 University Surabaya
Abdulrahim
Surabaya, Indonesia
17 Agustus 1945 University Surabaya
Herlina
Surabaya, Indonesia
17 Agustus 1945 University Surabaya
Pratiwi
Surabaya, Indonesia
Microstructure modelling of bottom ash reinforced aluminum metal matrix composite with stress relaxation
It is studied stress relaxation at microstructure modeling, in particular percentage of rolling reduction and relaxation time at forming microstructure. For the specimen ingot is given a stress in hot-rolling method at temperature of 250°C. The variable parameter is 1, 2and 3% bulk reduction during rolling; loading duration is 0.5 – 3.5 s. Tensile test is used to measure the tensile strength. Knowing the initial time of grain formation, we state the initial and final moments of precipitate during recrystallization. The microstructure analysis is performed by using Scanning Electron Microscopy (SEM). The research results show that in the case of 1% bulk reduction during rolling, there is a microstructure recovery in the first 0.5 s, then recrystallization begins via 1 sec, the beginning of precipitation takes place after1.5 s, and grain growth begins after 2.5 s. Corresponding results for 2% bulk reduction during rolling: recrystallization begins via 0,5 s, the beginning of precipitation takes place after 1 sec, and grain growth begins after 2.5 s. The results for 3% bulk reduction during rolling: the beginning of precipitation takes place after 0.5 sec, and grain growth begins after 1.5 s.
10.18720/MPM.3722018_13
microstructure modeling; stress relaxation; Scanning Electron Microscopy (SEM)
https://mpm.spbstu.ru/article/2018.62.13/
MPM237_13_abdulrahim.pdf
RAR
RUS
205-211
17 Agustus 1945 University Surabaya
Seputro
Surabaya, Indonesia
17 Agustus 1945 University Surabaya
Ismail
Surabaya, Indonesia
National Kaohsiung Marine University
Chang
Kaohsiung, Taiwan
Superplasticity of bottom ash reinforced aluminum metal matrix composite
Superplasticity is a phenomenon that occurs in a material, which in certain conditions, at the strain rate and temperature, can show very high ductility and deformation. Superplasticity declares the strain extension between 100 – 1000 %. The purpose of this research was to obtain a composite material properties of superplasticity in Al 6061 reinforced by bottom ash coal. This research used uniaxial tensile test at high temperature. The variable parameters of this research are temperatures (500, 550, 600 °C) and tensile speed (10-5, 10-6, 10-7 m/s). The result of this research is the defined maximum extension of 200% at 600 °C, with tensile speed at 10-7 m/sec.
10.18720/MPM.3722018_14
aluminum; bottom ash; metal matrix composite; superplasticity
https://mpm.spbstu.ru/article/2018.62.14/
MPM237_14_seputro.pdf
RAR
RUS
212-217
17 Agustus 1945 University Surabaya
Wahid
Surabaya, Indonesia
17 Agustus 1945 University Surabaya
Nafi
Surabaya, Indonesia
Study of bottom ash reinforced aluminum metal matrix composite for automotive parts
Low cost and light materials nowadays are the requirements for industry, especially automotive. An aluminum based metal matrix composite (MMC) with bottom ash reinforcement is developed as input and ideas for automotive industry, because of its properties are equivalent with metals, however this MMC is lighter, cheaper, and easy to get. The objective of the study is creating automotive parts using Al metal matrix with bottom ash reinforcement c omposite. Al-bottom ash composite is formed by HAS method then necessary machining added. The tests performed to the composite are tensile test, hardness test, corrosion and microstructure. The result shows the number of mechanical properties in general, mechanical properties increased about by 30% compared with properties of standard propeller found in market. The microstructure images support the other mechanical destructive testing that Al-bottom ash composite can be used as an alternative as automotive parts.
10.18720/MPM.3722018_15
aluminum-bottom ash; automotive parts; mechanical properties; metal matrix composite
https://mpm.spbstu.ru/article/2018.62.15/
MPM237_15_wahid.pdf