PERSPEKTIVNYE MATERIALY
2022, No.3
Physics, chemistry and mechanics of formation of bioactive surfaces on implants. Review
V. I. Kalita, D. I. Komlev, A. A. Radiuk
The analysis of literature on bioactive surfaces of volume implants and plasma coatings on their surface is made. Influence of the porous sizes on process of growing new bone in an implant surface it is described. The traditional porous structure of a plasma titanic coating is formed due to decrease in extent of deformation of spraying particles on a substrate and it not optimum for growing of a new bone tissue. Modern dense coatings a hydroxyapatite (HA) - the titan have no necessary porous structure, and transfer of cyclic loading through an external layer is not reliable. In too time comparative researches of 17 surfaces of implants at implantation indicate obvious advantages of plasma HA of coatings is not dependent on degree of their crystallinity. Three-dimensional capillary-porous (TCP) titanium coatings in the form of ridges and cavities with additional HA plasma and microplasma coatings are perspective for medical application due to division of dense and porous volumes of a coating, increase in the area of border with a new bone tissue, higher shear and a possibility of spraying of the HA coating with equilibrium structure at a temperature of a surface of titanium at 550 °C. The analysis of HA coating content phase is made depending on the modes of plasma spraying.
Keywords: review, implants, plasma coatings, hydroxyapatite, phases, three-dimensional capillary-porous, the titan, shear.
DOI: 10.30791/1028-978X-2022-3-5-23
Kalita Vasilii — Baikov Institute of Metallurgy and Materials Sciences of Russian Academy of Sciences (Moscow, 119334, Leninsky Prospect, 49), Dr Sci (Eng), head of laboratory, specialist in the field of plasma spraying. E-mail: vkalita@imet.ac.ru.
Komlev Dmitry — Baikov Institute of Metallurgy and Materials Sciences of Russian Academy of Sciences (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 Materials Sciences of Russian Academy of Sciences (Moscow, 119334, Leninsky Prospect, 49), junior researcher, specialist in the field of plasma spraying. E-mail: imet-lab25@yandex.ru.
Kalita V.I., Komlev D.I., Radiuk A.A. Fizika, himiya i mekhanika formirovaniya bioaktivnyh poverhnostej na implantatah. Obzor [Physics, chemistry and mechanics of formation of bioactive surfaces on implants. Review]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2022, no. 3, pp. 5 – 23. DOI: 10.30791/1028-978X-2022-3-5-23
Structure and properties
of industrial semi-products of weldable
corrosion-resistant Al – Mg – Si – Cu system
aluminum alloy
K. V. Antipov, I. Benarieb, Y. S. Oglodkova,
A. S. Rudchenko
The results of comprehensive studies of a set of properties of experimental-industrial sheets and extruded profiles made of a new aluminum alloy V-1381 Al – Mg – Si – Cu systems (6xxxx series) are presented in the article. The alloy has shown high manufacturability in industrial production under extrusion, as well as in hot and cold rolling. Using the Thermo-Calc software package, the quenching mode of semi-finished products was selected, as well as the modes of artificial aging modes were investigated. It is shown that the alloy V-1381T1 is not inferior in its mechanical properties to the foreign analogue alloy AA6013, is characterized by a good combination of mechanical properties at room temperature (σu ≥ 380 MPa, σ0.2 ≥ 360 MPa, δ5 ≥ 13 %) and elevated temperatures, exceeds the widely used alloy D16chT in yield strength by 20%, while possessing a lower density, better corrosion resistance and ability to obtain welded joints. The new alloy V-1381 can be recommended for use in fuselage structural elements of aviation equipment, including replacing less corrosion-resistant non-welded alloys of the D16 type, which will increase the weight efficiency of the structure both due to increased strength and due to the replacement of riveted joints withwelded ones.
Keywords: Al – Mg – Si – Cu system, 6xxx series alloys, homogenization, quenching, aging, corrosion resistance, welding.
DOI: 10.30791/1028-978X-2022-3-24-35
Antipov Konstantin — FSUE “All-Russian Scientific-Research Institute of Aviation Materials” State Scientific Center of the Russian Federation (105005 Moscow, Radio str. 17), head of sector, specialist in the field of aluminum wrought alloys. E-mail: anti_kos@mail.ru.
Benarieb Ilyas — FSUE “All-Russian Scientific-Research Institute of Aviation Materials” State Scientific Center of the Russian Federation (105005 Moscow, Radio str. 17), engineer, specialist in the field of aluminum wrought alloys. E-mail: benar1294@gmail.com.
Oglodkova Yuliya — FSUE “All-Russian Scientific-Research Institute of Aviation Materials” State Scientific Center of the Russian Federation (105005 Moscow, Radio str. 17), 1 category engineer, specialist in the field of aluminum wrought alloys. E-mail: julies87@mail.ru.
Rudchenko Aleksey — FSUE “All-Russian Scientific-Research Institute of Aviation Materials” State Scientific Center of the Russian Federation (105005 Moscow, Radio str. 17), 2 category engineer, specialist in the field of aluminum wrought alloys. E-mail:
rudchenko.aleksey@gmail.com.
Antipov K.V., Benarieb I., Oglodkova Y.S., Rudchenko A.S. Struktura i svojstva promyshlennyh polufabrikatov iz svarivaemogo korrozionnostojkogo alyuminievogo splava sistemy Al – Mg – Si – Cu [Structure and properties of industrial semi-products of welded corrosion-resistant Al – Mg – Si – Cu system aluminum alloy]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2022, no. 3, pp. 24 – 35. DOI: 10.30791/1028-978X-2022-3-24-35
Study of electrochemical, electrical properties
and temperature dependences of azomethine-Zn (II)
ligand complexes based on pyrazolone
A. S. Tyutyunik, V. S. Gurchenko, A. S. Mazinov
Comprehensive study of the electrochemical, electrical properties and temperature dependences of the Zn (II) hybrid organic complex based on Schiff (C48H42N6O2Zn) is carried out. In order to determine the prospects for using this compound as a semiconductor material, thin films were obtained using the centrifugation method. The method of preparation, synthesis, microscopy of the surface, as well as the method of measuring the temperature dependences of the electrical properties of the obtained thin films are described. The temperature measurement range ranged from 270 to 330 K. The energy levels of the lowest unoccupied molecular orbital and the highest occupied molecular orbital were determined using cyclic voltammetry. The activation energy calculated from linear approximations of the current-voltage characteristics in Arrhenius coordinates was 0.65 eV. Analysis of the current-voltage characteristics of the ITO – PBAL – Al structure showed that they correspond to the typical characteristics of Schottky diodes with a charge mobility of ~ 1,18·10–11cm2·V–1·s–1.To study the mechanisms of charge transfer, the C – V characteristics of the samples were investigated at a frequency of 1 kHz. The concentration of charge carriers was calculated using the Mott – Schottky relationship.
Keywords:zinc complex, Mott – Schottky, cyclic voltage–current characteristics, activation energy, mechanisms of conduction.
DOI: 10.30791/1028-978X-2022-3-36-45
Tyutyunik Andrey — V.I. Vernadsky Crimean Federal University (Prospect Vernadsky, 4, Simferopol, Republic of Crimea, Russia, 295007), junior researcher at the Institute of Physics and Technology, specialist in organic electronics. E-mail: tyutyunikas@mail.ru.
Gurchenko Vladimir — V.I. Vernadsky Crimean Federal University (Prospect Vernadsky, 4, Simferopol, Republic of Crimea, Russia, 295007), postgraduate student of the Department of Radiophysics and Electronics, specialist in the field of thin-film materials and structures for semiconductor micro- and optoelectronics. E-mail: gurchenko_v@mail.ru.
Mazinov Alim — V.I. Vernadsky Crimean Federal University (Prospect Vernadsky, 4, Simferopol, Republic of Crimea, Russia, 295007), PhD, associate professor of the department of Radiophysics and Electronics, specialist in the development and research of nanomaterials with desired properties using both theoretical and experimental methods. E-mail: masinovas@cfuv.ru.
Tyutyunik A.S., Gurchenko V.S., Mazinov A.S. Issledovanie elektrohimicheskih i elektricheskih svojstv kompleksov azometin-ligand Zn (II) na osnove pirazolona i ih temperaturnyh zavisimostej [Study of electrochemical, electrical properties and temperature dependences of azomethine-Zn (II) ligand complexes based on pyrazolone]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2022, no. 3, pp. 36 – 45. DOI: 10.30791/1028-978X-2022-3-36-45
Obtaining and properties of ultrafiltration
cellulose acetate membranes
on a nylon net support
D. D. Fazullin, L. I. Fazullina, G. V. Mavrin
Composite membranes nylon-AC (NAC) were obtained by immersing a nylon mesh substrate in a 5 % solution of cellulose acetate (AC) in acetone. The AC content in the membrane ranged from 21 to 45 %, depending on the number of applied surface layers. According to the results of studying the properties of composite membranes, an increase in water absorption and total porosity of membranes after the application of the first layer of AC was found, and with the application of the next layer of AC, the values of water absorption and total porosity slightly decrease, which is due to the compaction of the membrane structure. Also, a decrease in the contact angle of the membrane wetting by 33° was revealed, which means an increase in the hydrophilic properties of the membrane, which increases the wettability and productivity of the obtained membranes. Composite membranes with two and three layers of AC: NAC2 and NAC3 were used to separate 0.5 % water-oil emulsion with particle sizes from 81 to 422 nm. The specific productivity of the NAC2 membrane by 0.5 % water-oil emulsion was 9433 dm3/(m2·h), the productivity of the NAC3 membrane was 3799 dm3/(m2·h) at a pressure of 0.55 MPa, which exceeds the performance of the commercial ultrafiltration membrane UPM-100 equal to 1843 dm3/(m2·h). According to the results of the study, the retention capacity of composite membranes for oil products from a water-oil emulsion was established, which was 61 % for NAC2 membranes and 75 % for NAC3 membrane. These indicators are not inferior to the retention capacity of a commercial ultrafiltration membrane of the UPM-100 brand.
Keywords: composite membrane, nylon, cellulose acetate, porosity, IR spectra, emulsion, oil products, ultrafiltration, retention capacity.
DOI: 10.30791/1028-978X-2022-3-46-54
Fazullin Dinar — Kazan Federal University (Naberezhnye Chelny, 423810, prospect Mira, 68/19), PhD (Eng), associate professor of chemistry and ecology department, membrane technology specialist. E-mail: denr3@yandex.ru.
Fazullina Leysan — Kazan Federal University (Naberezhnye Chelny, 423810, prospeсt Mira, 68/19), employee of engineering center, specialist in the field of instrumental methods for the study of water bodies. E-mail: fazullinaleisan@yandex.ru.
Mavrin Gennady — Kazan Federal University (Naberezhnye Chelny, 423810, prospect Mira, 68/19), PhD (Chem), head of chemistry and ecology department, specialist in environmental monitoring and sorption processes. E-mail: mavrin-g@rambler.ru.
Fazullin D.D., Fazullina L.I., Mavrin G.V. Poluchenie i svojstva ul'trafil'tracionnyh membran iz acetata cellyulozy na podlozhke iz nejlonovoj setki [Obtaining and properties of ultrafiltration cellulose acetate membranes on a nylon net support]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2022, no. 3, pp. 46 – 54. DOI: 10.30791/1028-978X-2022-3-46-54
The role of manganese-substituting ions
and oxygen nonstoichiometry in the formation
of the manganites properties
V. K. Karpasyuk, A. G. Badelin, D. I. Merkulov,
R. M. Eremina, F. G. Vagizov, S. Kh. Estemirova
Structural and magnetic characteristics of La0.7Sr0.3Mn0.957Fe0.05Zn0.05O3+γ and La0.7Sr0.3Mn0.957Fe0.05Mg0.05O3+γ manganites, in which the iron is Mossbauer isotope 57Fe, are investigated and compared. Ceramic samples were sintered in air at 1473 K. They were then exposed to heat treatments at 1223 K and various partial pressure of oxygen in the gas phase, which ensured the production of manganites with following values of non-stoichiometry index: γ = –0.005; 0.000; 0.007; 0.008 for Zn-containing manganites (ZnM), and γ = –0.022; 0.000; 0.002; 0.005 for Mg-containing manganites (MgM). All synthesized manganites have rhombohedral crystal structure. Mössbauer spectroscopy data correspond to Fe3+ (3d5) ions. Curie point and magnetization depend on g nonmonotonically. ZnM have essentially higher values of magnetic parameters and narrowest temperature interval of “ferromagnetic-paramagnetic” transition as compared to MgM. Their structure is considered as more homogeneous, which corresponds to lower value of quadrupole splitting of Mössbauer spectra. The results obtained indicate that different effect of Zn2+and Mg2+ ions on electromagnetic characteristics of manganites is mainly determined by the configuration of their electron shells (3d10 and 2p6, correspondingly).
Keywords: Mossbauer isotope of iron, non-stoichiometry index, electron shells, magnetization, “ferromagnetic-paramagnetic” transition, quadrupole splitting, inhomogeneities.
DOI: 10.30791/1028-978X-2022-3-55-60
Karpasyuk Vladimir — Astrakhan State University (20a Tatishchev Str., Astrakhan, 414056, Russia), Dr. Sci. (Phys-Math), professor, director and scientific head of the Research and educational center for functional magnetic materials, specialist in the field of the physics of magnetic materials, semiconductors and dielectrics. E-mail: vkarpasyuk@mail.ru.
Badelin Alexey — Astrakhan State University (20a Tatishchev Str., Astrakhan, 414056, Russia), PhD (Phys-Math), senior researcher, specialist in the condensed matter physics and ceramic processing. E-mail: alexey_badelin@mail.ru.
Merkulov Denis — Astrakhan State University (20a Tatishchev Str., Astrakhan, 414056, Russia), PhD (Phys-Math), head of laboratory, specialist in the field of condensed matter physics, materials science for semiconductors and dielectrics. E-mail: merkul_d@mail.ru.
Eremina Rushana — The Kazan E.K. Zavoisky Physical-Technical Institute (10/7 Sibirsky tract Str., Kazan, 420029, Russia), Dr Sci (Phys-Math), leading researcher, specialist in the field of magnetism and lattice dynamics in crystals and disordered systems. E-mail:
reremina@yandex.ru.
Vagizov Farit — Kazan Federal University (420008, Kazan, Kremlevskaya Str., 18), PhD (Phys-Math), associate professor, associate professor of Department of solid state physics, specialist in the field of Mössbauer spectroscopy. E-mail: vagizovf@gmail.com.
Estemirova Svetlana — Institute of metallurgy, Ural Division of RAS (101 Amundsen Str., Ekaterinburg, 620016, Russia), PhD (Chem.), senior researcher, specialist in condensed matter chemistry and X-ray structural analysis. E-mail: esveta100@mail.ru.
Karpasyuk V.K., Badelin A.G., Merkulov D.I., Eremina R.M., Vagizov F.G., Estemirova S.Kh. Rol' zameshchayushchih marganec ionov i kislorodnoj nestekhiometrii v formirovanii svojstv manganitov [The role of manganese-substituting ions and oxygen nonstoichiometry in the formation of the manganites properties]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2022, no. 3, pp. 55 – 60. DOI: 10.30791/1028-978X-2022-3-55-60
Composites of the Al2O3/Yb-TZP system
modified with calcium, strontium
and barium cations
L. I. Podzorova, V. E. Kutuzova, A. A. Il’ichyova,
O. I. Pen’kova, V. P. Sirotinkin,
A. A. Konovalov, O. S. Antonova, A. S. Baikin
The paper discusses the possibility of implementing two strengthening mechanisms in a ceramic system of Al2O3 and ZrO2simultaneously: namely, transformational, due to the tetragonal form of zirconium dioxide and dispersion, due to the in situ formation of hexaaluminates of alkaline earth elements. The concentrations of modifying additives of calcium, strontium and barium, providing the formation of the corresponding hexaaluminates, have been established. The influence of the formed phases on the microstructure and strength characteristics of the obtained composites is considered. On composites including strontium cations, high strength parameters were obtained, flexural strength — 700 MPa, the critical stress intensity coefficient K1c reaches 10 MPa·m1/2, which is due to the optimal effect of a combination of transformation and dispersion hardening effects.
Keywords: phase formation, microstructure, composites, hexaaluminate, flexural strength, fracture toughness.
DOI: 10.30791/1028-978X-2022-3-61-69
Podzorova Lyudmila — Baikov Institute of Metallurgy and Materials Science RAS (119334, Moscow, Leninsky ave., 49), PhD, leading researcher, specialist in the field of physico-chemical fundamentals of structural ceramics technology. E-mail: lpodzorova@imet.ac.ru; ludpodzorova@gmail.com.
Kutuzova Valeriya — Baikov Institute of Metallurgy and Materials Science RAS (119334, Moscow, Leninsky ave., 49), Junior Researcher, specialist in the field of chemistry and technology of refractory non-metallic material. E-mail: vkutuzova@imet.ac.ru; valeriagubareva@mail.ru.
Ilicheva Alla — Baikov Institute of Metallurgy and Materials Science RAS (119334, Moscow, Leninsky ave., 49), senior researcher, specialist in the field of research of low-temperature synthesis of oxide precursors. E-mail: ailyicheva@imet.ac.ru, alla.ilicheva@inbox.ru.
Penkova Olga — Baikov Institute of Metallurgy and Materials Science (119334, Moscow, Leninsky ave., 49), researcher, specialist in the field of ceramics technology. E-mail:
openkova@imet.ac.ru, olapen@mail.ru.
Sirotinkin Vladimir — Baikov Institute of Metallurgy and Materials Science (119334, Moscow, Leninsky ave., 49), PhD, senior researcher, specialist in the field of crystal structure studies. E-mail: sir@imet.ac.ru.
Konovalov Anatolij — Baikov Institute of Metallurgy and Materials Science (119334, Moscow, Leninsky ave., 49), PhD, senior researcher, specialist in the field of new technologies of metal and ceramic materials. E-mail: akonovalov@imet.ac.ru, ak357@rambler.ru.
Antonova Olga — Baikov Institute of Metallurgy and Materials Science (119334, Moscow, Leninsky ave., 49), junior researcher, specialist in the field of ceramic composite materials. E-mail: oantonova@imet.ac.ru, osantonova@yandex.ru.
Baikin Aleksandr — Baikov Institute of Metallurgy and Materials Science (119334, Moscow, Leninsky ave., 49), PhD, researcher, specialist in the field of strength and plasticity of metal and composite materials and nanomaterials. E-mail: abaikin@imet.ac.ru, baikinas@mail.ru.
Podzorova L.I., Kutuzova V.E., Il’ichyova A.A., Pen’kova O.I., Sirotinkin V.P., Konovalov A.A., Antonova O.S., Baikin A.S. Kompozity sistemy Al2O3/Yb-TZP, modificirovannye kationami kal'ciya, stronciya i bariya [Composites of the Al2O3/Yb-TZP system modified with calcium, strontium and barium cations]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2022, no. 3, pp. 61 – 69. DOI: 10.30791/1028-978X-2022-3-61-69
Research of titanium powder obtained
by SHS–hydrogenation
and dehydrogenation in a vacuum furnace
N. P. Cherezov, M. I. Alymov, V. V. Zakorzhevsky
The method of SHS (self-propagating high-temperature synthesis) allows the efficient synthesis of titanium hydride. The article presents new results of experimental studies of titanium powders synthesized by the method of SHS hydrogenation and dehydrogenation in a vacuum furnace. Changes in the microstructure, phase and chemical composition during hydrogenation-dehydrogenation of a titanium sponge were studied. The titanium sponge was hydrogenated in a high-pressure SHS reactor at a hydrogen pressure of 3 MPa. The content of oxygen and carbon impurities decrease in the process of SHS hydrogenation was found. After hydrogenation, the sponge is a single-phase d-hydride of titanium with a tetragonal lattice, the particles have a fragmentary shape. In the obtained titanium hydride, an increased hydrogen content of 4.64 wt. % was noted. The hydrogenated titanium sponge was mechanically crushed in a drum-ball mill to a particle size of 40 – 250 microns. Dehydrogenation of titanium hydride powder was carried out in a vacuum furnace at a temperature of 850 °C for 220 minutes. Titanium after dehydrogenation is a single-phase a-titanium powder with a hexagonal close packed lattice, the size and shape of the particles have not changed. The technological process under study provides the possibility of obtaining high-quality titanium powders of the necessary granulometric composition for various fields of powder metallurgy.
Keywords:SHS hydrogenation, titanium sponge, titanium hydride, hydrogen, dehydrogenation, powder metallurgy, titanium powder.
DOI: 10.30791/1028-978X-2022-3-70-77
Cherezov Nikita — Merzhanov Institute of Structural Macrokinetics and Materials Science Russian Academy of Sciences (ISMAN, Academician Osipyan str., 8, Chernogolovka, Moscow Region, 142432, Russia), PhD student, junior researcher. E-mail: cherezovnikita@gmail.com.
Alymov Mikhail — Merzhanov Institute of Structural Macrokinetics and Materials Science Russian Academy of Sciences (ISMAN, Academician Osipyan str., 8, Chernogolovka, Moscow Region, 142432, Russia), corresponding member of the Russian academy of sciences, director, specialist in the field of powder metallurgy and composite materials. E-mail:
alymov@ism.ac.ru.
Zakorzhevsky Vladimir — Merzhanov Institute of Structural Macrokinetics and Materials Science Russian Academy of Sciences (ISMAN, Academician Osipyan str., 8, Chernogolovka, Moscow Region, 142432, Russia), PhD, leading researcher, specialist in the field of powder metallurgy and composite materials. E-mail: zakvl@ism.ac.ru.
Cherezov N.P., Alymov M.I., Zakorzhevsky V.V. Issledovanie poroshka titana, poluchennogo metodom SVS-gidrirovaniya i degidrirovaniya v vakuumnoj pechi [Research of titanium powder obtained by SHS–hydrogenation and dehydrogenation in a vacuum furnace]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2022, no. 3, pp. 70 – 77. DOI: 10.30791/1028-978X-2022-3-70-77
Low-temperature synthesis of barium titanate
in the mesoporous polyethylene matrices
E. S. Trofimchuk, M. A. Moskvina, V. G. Shevchenko,
N. I. Nikonorova
A nanocomposite based on high-density polyethylene with barium titanate (content of 13 – 15 wt. %) was obtained as a result of low-temperature synthesis of the inorganic component directly in the mesopores of an oriented polymer matrix using the sol-gel method followed by hydrothermal treatment in an alkaline medium. Crystallization of barium titanate in nanopores is detected by X-ray phase analysis and electron microscopy to occur mainly in a cubic crystalline modification with an average crystallite size of 16 nm and to form chain structures. A comparative assessment of the dielectric properties of a polymer nanocomposite and powder barium titanate synthesized under similar conditions is carried out.
Keywords: barium titanate, hydrothermal synthesis, polyethylene, crazing, nanocomposite, dielectric constant.
DOI: 10.30791/1028-978X-2022-3-78-86
Trofimchuk Elena — Department of Chemistry, M.V. Lomonosov Moscow State University
(1-3, Leninskie Gory, Moscow 119991 Russia), PhD (Chem), senior lecturer, specialist in physic and chemistry of polymers. E-mail: elena_trofimchuk@mail.ru.
Moskvina Marina — Department of Chemistry, M.V. Lomonosov Moscow State University
(1-3, Leninskie Gory, Moscow 119991 Russia), PhD (Chem), senior scientist, specialist in physic and chemistry of polymers. E-mail: moskvina203@yandex.ru.
Shevchenko Vitaliy —Enikolopov Institute of Synthetic Polymeric Materials of Russian Academy of Science, (Profsoyuznaya 70, Moscow 117393 Russia), Dr Sci (Chem), leading researcher, chief of the Laboratory of the structure of polymer materials, leading specialist in the structure of polymers. E-mail: shev @ispm.ru.
Nikonorova Nina — Department of Chemistry, M.V. Lomonosov Moscow State University
(1-3, Leninskie Gory, Moscow 119991 Russia), PhD (Chem), senior scientist, associate professor, specialist in physic and chemistry of polymers. E-mail: nni@genebee.msu.ru.
Trofimchuk E.S., Moskvina M.A., Shevchenko V.G., Nikonorova N.I. Nizkotemperaturnyj sintez titanata bariya v mezoporistoj matrice polietilena [Low-temperature synthesis of barium titanate in the mesoporous polyethylene matrices]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2022, no. 3, pp. 78 – 86. DOI: 10.30791/1028-978X-2022-3-78-86
