PERSPEKTIVNYE MATERIALY
Title
Bismuth telluride solid solutions based
on doped with graphene
L. D. Ivanova, Yu. V. Granatkina, I. Yu. Nikhezina, A. G. Malchev,
D. S. Nikulin, M. Y. Shtern, A. R. Erofeeva
The microstructure and thermoelectric properties of materials based on Bi0,5Sb1,5Te3solid solutions p-type conductivity and Bi2Te2,4Se0,6 n-type conductivity doped with graphene have been studied. The samples were obtained by spark plasma sintering of powders prepared by melt spinning and crushed in a ball mill together with graphene plates, which were introduced in an amount of 0,05, 0,1 and 0,15 wt. %. Scanning electron microscopy was used to study the composition and microstructure. The p-type conductivity samples had a fine-grained (on the order of hundreds of nanometers) structure with micron-sized tellurium-based eutectic inclusions. The samples of n-type conductivity contained grains with melted edges. Thermoelectric parameters were measured: the Seebeck coefficient, specific electrical conductivity, thermal conductivity at room temperature and in the temperature range of 100 –700 K, and the thermoelectric figure of merit was calculated. When adding 0,15 wt.% graphene plates to a p-type conductivity solid solution, the maximum thermoelectric figure of merit of the material (ZT)maxincreased by 13% and at 420 K was 1,3. The highest thermoelectric figure of merit (ZT)max = 0,83 at 470 K was obtained for the a n-type conductivity sample doped with 0,1 wt.% graphene plates.
Keywords: bismuth and antimony telluride, bismuth chalcogenides, graphene plates, melt spinning, spark plasma sintering, microstructure, thermoelectric properties.
DOI: 10.30791/1028-978X-2024-5-5-16
Ivanova Lidia — Baikov Institute of Metallurgy and Materials Sciences RAS (119334, Moscow, Leninsky prospect, 49), PhD, leading researcher, specialist in the field of semiconductor materials science, technologies for obtaining and researching thermoelectric materials. E-mail: ivanova@imet.ac.ru.
Granatkina Julia — Baikov Institute of Metallurgy and Materials Sciences RAS (119334, Moscow, Leninsky prospect, 49), researcher, specialist in the field of semiconductor materials science and research of properties of thermoelectric materials. E-mail: granat@imet.ac.ru.
Nikhezina Irina — Baikov Institute of Metallurgy and Materials Sciences RAS (119334, Moscow, Leninsky prospect, 49), researcher, specialist in the field of semiconductor materials science and research of properties of thermoelectric materials. E-mail: nihezina@imet.ac.ru.
Malchev Alexey — Baikov Institute of Metallurgy and Materials Sciences RAS (119334, Moscow, Leninsky prospect, 49), junior researcher, specialist in the field of semiconductor materials science and research of properties of thermoelectric materials. E-mail:
malchev@imet.ac.ru.
Nikulin Dmitry — Baikov Institute of Metallurgy and Materials Sciences RAS (119334, Moscow, Leninsky prospect, 49), senior researcher, specialist in the field of semiconductor materials science and research of properties of thermoelectric materials. E-mail:
zaxnur@gmail.com.
Shtern Maxim — JSC Giredmet (111524, Moscow, Electrodnaya str., 2, b. 1), head of thermoelectric materials laboratory, specialist in the field of semiconductor materials science and research of properties of thermoelectric materials. E-mail: MYShtern@rosatom.ru.
Erofeeva Anastasia — JSC Giredmet (111524, Moscow, Electrodnaya str., 2, b. 1), trainee researcher of thermoelectric materials laboratory, specialist in the field of semiconductor materials science and research of properties of thermoelectric materials. E-mail: anastasiya1707a@mail.ru.
Ivanova L.D., Granatkina Yu.V., Nikhezina I.Yu., Malchev A.G., Nikulin D.S., Shtern M.Y., Erofeeva A.R. Tverdye rastvory na osnove tellurida vismuta, legirovannye grafenom [Bismuth telluride solid solutions based on doped with graphene]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2024, no. 5, pp. 5 – 16. DOI: 10.30791/1028-978X-2024-5-5-16
Study of space charge limited currents in thin film
metal-dielectric structures based on TiO2
D. K. Nikiforov, V. V. Andreev, G. G. Bondarenko
A study of space charge limited currents (SCLC) in thin film Ti–TiO2 structures was carried out. Based on the experimental values of the physical parameters of the TiO2 dielectric, models of the processes of formation of injection currents limited by space charge were created. The dependences of the injection current on the applied voltage, the thickness of the dielectric layer, and the parameters of electron traps have been studied. It is shown that injection SCLC in the structures being studied has a significant dependence both on the depth of the traps and on their concentration. The results are compared with previously obtained dependences for the structures of BeO, Al2O3and AlN.
Keywords: space charge limited currents; titanium oxide; electronic traps; thin film structure; modeling.
DOI: 10.30791/1028-978X-2024-5-17-25
Nikiforov Dmitry — Bauman Moscow State Technical University, the Kaluga branch (248000, Kaluga, Bazhenov str., 2), PhD physical and mathematical, associate professor, specialist in the field of solid state physics and dielectric materials. E-mail: nikiforov.dk@bmstu.ru.
Andreev Vladimir — Bauman Moscow State Technical University, the Kaluga branch (248000, Kaluga, Bazhenova str., 2), doctor of technical sciences, professor, specialist in the field of physics of semiconductor and dielectric materials. E-mail: vladimir_andreev@bmstu.ru.
Bondarenko Gennady — National Research University “Higher School of Economics” (101000, Moscow, Myasnitskaya str., 20), doctor of physical and mathematical sciences, professor, head of laboratory, specialist in the field of radiation solid state physics, space materials science. E-mail: gbondarenko@hse.ru.
Nikiforov D.K., Andreev V.V., Bondarenko G.G. Issledovanie inzhekcionnyh tokov, ogranichennyh prostranstvennym zaryadom, v tonkoplenochnyh strukturah metall – dielektrik na osnove TiO2 [Study of space charge limited currents in thin film metal-dielectric structures based on TiO2]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2024, no. 5, pp. 17 – 25. DOI: 10.30791/1028-978X-2024-5-17-25
Structure and mechanical properties
of Ti – (36 – 40) Zr – 9 Ta (at. %) alloys
for medical purposes
M. A. Volchikhina, S. V. Konushkin, S. A. Mikhlik,
K. V. Sergienko, M. A. Kaplan, A. D. Gorbenko,
T. M. Sevostyanova, A. G. Kolmakov, M. A. Sevostyanov
In this work, the following are investigated: structure, phase composition and mechanical properties under static tension of titanium alloys Ti – (36 – 40) Zr – 9 Ta (at. %) for medical use after hot rolling and quenching. After rolling, the alloys consist of α¢- and β-phases. The results of the research showed that the hardening of alloys leads to the almost complete dissolution of the β-phase and the release of α¢- and α²-phases. Investigations of mechanical properties of alloys Ti –(36 – 40) Zr – 9 Ta (at.%) showed that in terms of tensile strength, the studied alloys Ti – 36 Zr – 9 Ta, Ti – 38 Zr – 9 Ta, Ti – 40 Zr – 9 Ta are similar to the VT6 alloy widely used for implants (σ = 835 – 1100 MPa), and in terms of plasticity (δ = 15 – 21 %) and low value Young’s modulus (E = 53 – 73 GPa) significantly exceeds it.
Key words: titanium alloys, biocompatibility, mechanical properties, medical alloys, titanium.
DOI: 10.30791/1028-978X-2024-5-26-36
Volchikhina Maria — Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences (119334, Moscow, Leninsky Prospekt, 49), research engineer, specialist in the field of titanium alloys and heat treatment of materials. E-mail: mashavolchihina2706@gmail.com.
Konushkin Sergey — Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences (119334, Moscow, Leninsky Prospekt, 49), PhD (Eng), researcher, specialist in the field of titanium alloys and heat treatment of materials. E-mail: skonushkin@imet.ac.ru.
Mikhlik Sofia — Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences (119334, Moscow, Leninsky Prospekt, 49), laboratory assistant, specialist in the preparation of thin sections. E-mail: beliyfecity@yandex.ru;
Sergienko Konstantin — Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences (119334, Moscow, Leninsky Prospekt, 49), junior researcher, specialist in the field of titanium alloys and heat treatment of materials. E-mail: ksergienko@imet.ac.ru;
Kaplan Mikhail — Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences (119334, Moscow, Leninsky Prospekt, 49), PhD (Eng), junior researcher, specialist in the field of antibacterial, corrosion-resistant steels and alloys. E-mail: mkaplan@imet.ac.ru.
Gorbenko Artem — Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences (119334, Moscow, Leninsky Prospekt, 49), research engineer, specialist in the field of antibacterial, corrosion-resistant steels and alloys. E-mail:
artemgorbenk@yandex.ru.
Sevostyanova Tatyana — GBUZ MO MONIKI named after M. F. Vladimirsky (129110, Moscow, Shchepkina st., 61/2), junior researcher, specialist in the field of biological research. E-mail: tata_sev1048@mail.ru.
Kolmakov Aleksey — Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences (119334, Moscow, Leninsky Prospekt, 49), corresponding member of RAS, Dr. of Sci., head of laboratory, specialist in the field of titanium alloys and heat treatment of materials. E-mail: akolmakov@imet.ac.ru.
Sevostyanov Mikhail — Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences (119334, Moscow, Leninsky Prospekt, 49), PhD (Eng), leading researcher, specialist in the field of titanium alloys and heat treatment of materials. E-mail: msevostyanov@imet.ac.ru.
Volchikhina M.A., Konushkin S.V., Mikhlik S.A., Sergienko K.V., Kaplan M.A., Gorbenko A.D., Sevostyanova T.M., Kolmakov A.G., Sevostyanov M.A. Struktura i mekhanicheskie svojstva splavov Ti – (36 – 40) Zr – 9 Ta (at. %) medicinskogo naznacheniya [Structure and mechanical properties of Ti – (36 – 40) Zr – 9 Ta (at. %) alloys for medical purposes]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2024, no. 5, pp. 26 – 36. DOI: 10.30791/1028-978X-2024-5-26-36
Influence of strontium on the oxidation kinetics
of aluminum conductor alloy AlTi0.1
in the solid state
I. N. Ganiev, F. Sh. Zokirov, R. J. Faizulloev, M. M. Mahmadizoda
The interaction of the aluminum conductor alloy AlTi0.1 (Al + 0.1 wt. % Ti), containing additives of 0,01, 0,05, 0,1 and 0,5 wt. % strontium, with atmospheric oxygen in the range of 723 – 823 K without the formation of a liquid phase was studied using the thermogravimetric method. For the studied compositions, kinetic parameters, true rate constants and activation energies of the oxidation process were determined. It was revealed that with an increase in strontium content from 0,01 to 0,5 wt.%, the oxidation rate of the initial AlTi0.1 alloy increases with a simultaneous decrease in the apparent activation energy of the oxidation process from 140,0 to 116,9 kJ/mol. The increase in the oxidation rate is explained by the interaction of strontium oxide with aluminum oxide with the formation of spinel, which simplifies the access of oxygen to the reaction surface. A hyperbolic law approximates the oxidation kinetics of alloys.
Keywords: AlTi0.1 aluminum alloy, strontium, thermogravimetric method, oxidation kinetics, true oxidation rate, oxidation activation energy.
DOI: 10.30791/1028-978X-2024-5-37-47
Ganiev Izatullo Navruzovich — Tajik Technical University named after academician M.S. Osimi (734042, Republic of Tajikistan, Dushanbe, Academicians Radjabov Avenue, 10), Academician, Doctor of Chemical Sciences, professor of the Department of Chemical Production Technology, specialist in materials science and corrosion protection. E-mail: ganievizatullo48@gmail.com.
Zokirov Furkatshoh Shakhrierovich — Tajik Technical University named after Academician M.S. Osimi (734042, Republic of Tajikistan, Dushanbe, Academicians Radjabov Avenue, 10), Candidate of Technical Sciences, associated professor of the department of Physics, specialist in materials science. E-mail: Zokirov090514@mail.ru.
Faizulloev Rustam Jalilovich — Institute of Energy of Tajikistan, (733036, Republic of Tajikistan, Kushonien, N. Khusrava St.), lecturer of the department of Energy systems and Networks, specialist in materials science. E-mail: faizulloev_r@mail.ru.
Mahmadizoda Murodali Mahmadi — Tajik Technical University named after Academician M.S. Osimi (734042, Republic of Tajikistan, Dushanbe, Academician Radjabov Avenue, 10), Doctor of Technical sciences, vice-rector for academic affairs, specialist in materials science. E-mail: Sangov@mail.ru.
Ganiev I.N., Zokirov F.Sh., Faizulloev R.J., Mahmadizoda M.M. Vliyanie stronciya na kinetiku okisleniya alyuminievogo provodnikovogo splava AlTi0.1 v tverdom sostoyanii [Influence of strontium on the oxidation kinetics of aluminum conductor alloy AlTi0.1 in the solid state]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2024, no. 5, pp. 37 – 47. DOI: 10.30791/1028-978X-2024-5-37-47
Structure and microhardness of steel R6M5
coating after spraying and subsequent
friction treatment
V. I. Kalita, D. I. Komlev, A. A. Radiuk, A. B. Mihailova
We have developed and investigated the process of friction treatment of a plasma coating made of R6M5 steel on a cylindrical substrate. Processing for up to 70 s is carried out by cyclic application of a pressure of 30 MPa by two tools made of R18M5 steel on a coating rotating at 900 rpm, including with additional movement of the tools along the generatrix of the cylindrical substrate. As the friction treatment time increases, the surface temperature of the coating rises to 1202 °C, which is sufficient for plastic deformation of the coating material. The microhardness of the coating after plasma spraying is 3.13 GPa after friction treatment increases to 7.64 GPa. A large degree of deformation of the upper layers of the coating under the action of tools determines the increase in the microhardness of the coating from the substrate to the free surface from 5.85 to 7.64 GPa.
Keywords: plasma sprayed coating, FeCrMnNiCSi, friction surfacing, cylindrical substrate, tool steel, microstructural, microhardness.
DOI: 10.30791/1028-978X-2024-5-64-75
Aslanova Elnara Telman kyzy — Institute of Polymer Materials of Ministry of Science and Education of Republic of Azerbaijan (S.Vurgun Str., 124, Az5004, Sumgait), PhD (chemistry), assistant professor, head of laboratory, specialized in the field of obtaining and investigation of heat-resistant polymers and polymer composition materials. E-mail: ipoma@science.az.
Heydarova Sevinj Yaqub kyzy — Institute of Polymer Materials of Ministry of Science and Education of Republic of Azerbaijan (S.Vurgun Str., 124, Az5004, Sumgait), engineer of laboratory Highly branched polymers, specialized in the field of polymer investigation composition materials and epoxide resins. E-mail: ipoma@science.az.
Iskandarova Esfira Gudrat kyzy — Institute of Polymer Materials of Ministry of Science and Education of Republic of Azerbaijan (S.Vurgun Str., 124, Az5004, Sumgait), engineer of the department Physical and chemical analysis, specializing in the field of research of polymers and polymer composite materials. E-mail: ipoma@science.az.
Mamedov Bakhtiyar Ajdar ogly — Institute of Polymer Materials of Ministry of Science and Education of Republic of Azerbaijan (S.Vurgun Str., 124, Az5004, Sumgait), corresponding Member of Azerbaijan National Academy of Sciences , Doctor of Chemistry, professor, general director of the Institute, specialized in the field of obtaining and investigation polymers and polymer composition materials. E-mail: bazisaley@mail.ru.
Aslanova E.T., Heydarova S.Y., Iskenderova E.G., Mamedov B.A. Novaya epoksiimidnaya smola [New epoxy-imide resin]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2024, no. 5, pp. 48 – 55. DOI: 10.30791/1028-978X-2024-5-48-55
Effect of operation duration on characteristics
of polyethylene pipes
O. Y. Elagina, A. V. Buryakin, N. S. Poches
The paper presents an experimental assessment of the decrease in the actual physical and mechanical characteristics of HDPE pipes, depending on the term and conditions of their operation. To assess the impact of operational impacts on the characteristics of pipes, the following types of mechanical and physical properties were determined: elongation and tensile strength, thermal stability (induction period of oxidation of the IPO material), the degree of crystallinity. It was found that after long-term operation of HDPE pipes, compared with the initial normative values, the indicators of relative elongation and the induction period of oxidation change most significantly. At the same time, changes in the relative elongation and IPO indicators have a similar character in terms of loss of properties, which indicates the presence of a relationship. Based on the performed studies, it is concluded that the most sensitive indicators by which the service life of HDPE pipes can be predicted are the elongation at break and the induction oxidation period. Based on the data obtained, it seems promising to control the value of IPO when determining the technical condition of polyethylene pipes. The calculated forecast of the duration of operation of polyethylene pipes after they reach the limit state is made.
Keywords: pipes, polyethylene, properties, duration of operation.
DOI: 10.30791/1028-978X-2024-5-56-63
Elagina Oksana — National University of Oil and Gas “Gubkin University” (65 Leninsky Prospekt, Moscow, 119991, Russia), Doctor of Technical Sciences, professor, head of the department, specialist in materials science, welding and related technologies. E-mail: elaguina@mail.ru.
Buryakin Aleksey — National University of Oil and Gas “Gubkin University” (65 Leninsky Prospekt, Moscow, 119991, Russia), Candidate of Technical Sciences, docent, specialist in materials science, application of protective coatings, E-mail: albur55@yandex.ru
Poches Nikita — National University of Oil and Gas “Gubkin University” (65 Leninsky Prospekt, Moscow, 119991, Russia), engineer, specialist in tribology and mechanical properties of materials, E-mail: nikitapoches@gmail.com.
Elagina O.Y., Buryakin A.V., Poches N.S. Vliyanie dlitel'nosti ekspluatacii na fiziko-mekhanicheskie harakteristiki polietilenovyh trub [Effect of operation duration on characteristics of polyethylene pipes]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2024, no. 5, pp. 56 – 63. DOI: 10.30791/1028-978X-2024-5-56-63
Structure and microhardness of steel R6M5
coating after spraying and subsequent
friction treatment
V. I. Kalita, D. I. Komlev, A. A. Radiuk, A. B. Mihailova
We have developed and investigated the process of friction treatment of a plasma coating made of R6M5 steel on a cylindrical substrate. Processing for up to 70 s is carried out by cyclic application of a pressure of 30 MPa by two tools made of R18M5 steel on a coating rotating at 900 rpm, including with additional movement of the tools along the generatrix of the cylindrical substrate. As the friction treatment time increases, the surface temperature of the coating rises to 1202 °C, which is sufficient for plastic deformation of the coating material. The microhardness of the coating after plasma spraying is 3.13 GPa after friction treatment increases to 7.64 GPa. A large degree of deformation of the upper layers of the coating under the action of tools determines the increase in the microhardness of the coating from the substrate to the free surface from 5.85 to 7.64 GPa.
Keywords: plasma sprayed coating, FeCrMnNiCSi, friction surfacing, cylindrical substrate, tool steel, microstructural, microhardness.
DOI: 10.30791/1028-978X-2024-5-64-75
Kalita Vasilii — Baikov Institute of Metallurgy and Material Science RAS (Moscow, 119334, Leninsky Prospect, 49), Dr Sci (Eng), chief researcher, specialist in the field of plasma spraying. E-mail: imet-lab25@yandex.ru.
Komlev Dmitrii — Baikov Institute of Metallurgy and Material Science RAS (Moscow, 119334, Leninsky Prospect, 49), PhD, leading researcher, specialist in the field of plasma spraying. E-mail: imet-lab25@yandex.ru.
Radiuk Aleksei — Baikov Institute of Metallurgy and Material Science RAS (Moscow, 119334, Leninsky Prospect, 49), PhD, researcher, specialist in the field of plasma spraying. E-mail: imet-lab25@yandex.ru.
Mikhailova Alexandra — Baikov Institute of Metallurgy and Material Science RAS (Moscow, 119334, Leninsky Prospekt, 49), PhD, senior researcher, specialist in the field of X-ray analysis of materials. E-mail: sasham1@mail.ru.
Kalita V.I., Komlev D.I., Radiuk A.A., Mihailova A.B. Struktura i mikrotverdost' stal'nogo R6M5 pokrytiya posle napyleniya i posleduyushchej frikcionnoj obrabotki [Structure and microhardness of steel R6M5 coating after spraying and subsequent friction treatment]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2024, no. 5, pp. 64 – 75. DOI: 10.30791/1028-978X-2024-5-64-75
Experimental verification of the mechanism
of formation of condensed products from Ti – B – TiH2
powder mixture in the SHS process
A. G. Tarasov, A. V. Linde, V. T. Telepa, I. A. Studenikin
The features of self-propagating high-temperature synthesis (SHS) of Ti + B + 10 wt % TiH2 powder mixture in the combustion and electrothermal explosion modes are experimentally studied. The type of condensed products formation mechanism for each regime is determined. It is found that in the SHS process of this composition, an equilibrium mechanism is realized, regardless of the synthesis mode. The phase composition of the products for the two modes is compared. The principal possibility of synthesis of a product with the same phase composition with different morphology (sintered or melted) for multicomponent mixtures in which the equilibrium mechanism is realized has been experimentally confirmed.
Keywords: self-propagating high-temperature synthesis, (SHS), electrothermal explosion, (ETE), structural macrokinetics, (SMK), phase transformations, mechanism of formation of products.
DOI: 10.30791/1028-978X-2024-5-76-82
Tarasov Alexey — Institute of Structural Macrokinetics RAS (ISMAN, 142432 Moscow Region, Chernogolovka, Academician Osipyan str., 8), PhD, senior researcher, specialist in the field of fast physical and chemical processes. Е-mail: aleksei_tarasov@mail.ru.
Linde Aleksandr — Institute of Structural Macrokinetics RAS (ISMAN, 142432 Moscow Region, Chernogolovka, Academician Osipyan str., 8), PhD, senior researcher, expert in self-propagating high-temperature synthesis (SHS). E-mail: alex-linde@mail.ru.
Telepa Vladimir — Institute of Structural Macrokinetics RAS (ISMAN, 142432 Moscow Region, Chernogolovka, Academician Osipyan str., 8), PhD, leading researcher, specialist in the field of fast physical and chemical processes. E-mail: magnetic@ism.ac.ru.
Studenikin Ivan — Institute of Structural Macrokinetics RAS (ISMAN, 142432 Moscow Region, Chernogolovka, Academician Osipyan str., 8), scientific researcher, expert in self-propagating high-temperature synthesis (SHS). E-mail: studenikin@ism.ac.ru.
Tarasov A.G., Linde A.V., Telepa V.T., Studenikin I.A. Eksperimental'naya verifikaciya mekhanizma formirovaniya kondensirovannyh produktov iz poroshkovoj smesi Ti – B – TiH2 v processe SV [Experimental verification of the mechanism of formation of condensed products from Ti – B – TiH2 powder mixture in the SHS process]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2024, no. 5, pp. 76 – 82. DOI: 10.30791/1028-978X-2024-5-76-82
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