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The morphology and phenotype of monocyte-macrophages when cultured on bionanofilms substrates with different surface relief profiles / N. G. Menzyanova, S. A. Pyatina, A. V. Shabanov [et al.] // Biomolecules. - 2020. - Vol. 10, Is. 1. - Ст. 65, DOI 10.3390/biom10010065. - Cited References: 40. - This research was funded by the Russian Science Foundation, Project No 17-15-01352 . - ISSN 2218-273X
Кл.слова (ненормированные):
Atherosclerosis -- Monocyte-macrophages morphology -- Alkanoate-based bionanofilms -- Surface relief
Аннотация: The effect of surface relief profiles of alkanoate-based bionanofilms to the monocyte-macrophages (MN-MPhs) from peripheral blood of patients with atherosclerosis was studied in vitro. Patients were subjected to coronary stenting. Cell morphology and phenotype (expression of CD antigens, levels of production of marker cytokines) in vitro were analyzed before and after the installation of stents. It was shown, that the mean square roughness (Rq) of the bionanofilms determined the variability of cell morphology, CD antigens spectraand activity of production interleukins-6 and-10. Also, it was revealed, that the “activity” of the surface topography of biopolymer substrates depends on the functional state of MNs, isolated in different time points: Before and after stenting the ratios of cell morphotypes and production of cytokines in MN-MPhs differed significantly.

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Держатели документа:
Siberian Federal University, 79, Svobodnyav, Krasnoyarsk, 660041, Russian Federation
L.V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, 50/38 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Federal Research Center Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences, 50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Federal Center for Cardiovascular Surgery, 45 Karaulnaya, Krasnoyarsk, 660020, Russian Federation

Доп.точки доступа:
Menzyanova, N. G.; Pyatina, S. A.; Shabanov, A. V.; Шабанов, Александр Васильевич; Nemtsev, I. V.; Немцев, Иван Васильевич; Stolyarov, D. P.; Dryganov, D. B.; Sakhnov, E. V.; Shishatskaya, E. I.
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    Polymer Films of Poly-3-hydroxybutyrate Synthesized byCupriavidus necatorfrom Different Carbon Sources / E. Shishatskaya, I. Nemtsev, A. Lukyanenko [et al.] // J. Polym. Environ. - 2021. - Vol. 29. - P. 837-850, DOI 10.1007/s10924-020-01924-3. - Cited References: 54. - The reported study was funded by RFBR and KKRF Grant No. 19-43-240012 "Biological and physical principles of production of new generation biomaterials". The work was carried out as part of the State Assignment of the Ministry of Education and Science of the Russian Federation No. FSRZ-2020-0006. The authors would like to express their special thanks to Krasnoyarsk Regional Center of Research Equipment of Federal Research Center "Krasnoyarsk Science Center SB RAS" for providing equipment to ensure the accomplishment of this project . - ISSN 1566-2543. - ISSN 1572-8919
   Перевод заглавия: Полимерные пленки Поли-3-гидроксибутирата, синтезированные некатором Cupriavidus из различных источников углерода

РУБ Engineering, Environmental + Polymer Science
Рубрики:
CHEMOMECHANICAL PROPERTIES
RALSTONIA-EUTROPHA
SURFACE-ROUGHNESS
Кл.слова (ненормированные):
Degradable P(3HB) -- Various carbon substrates -- Films -- Structure -- Properties -- NIH 3T3 fibroblasts
Аннотация: Films were prepared from 2% solutions of biodegradable poly-3-hydroxybutyrate [P(3HB)] and investigated. The polymer was synthesized by the Cupriavidus necator B-10646 bacterium cultivated using various carbon sources (glucose and glycerol of different degrees of purity, containing 0.3 to 17.93% impurities). Glycerol as the substrate influenced molecular-weight properties and crystallinity of the polymer without affecting its temperature characteristics. The P(3HB) specimens synthesized from glycerol had reduced Mw (300–400 kDa) and degree of crystallinity (50–55%) compared to the specimens synthesized from glucose (860 kDa and 76%, respectively). The low-crystallinity P(3HB) specimens, regardless of the degree of purity of glycerol, produced a beneficial effect on the properties of polymer films, which had a better developed folded surface and increased hydrophilicity. The values of the highest roughness (Ra) of the films synthesized from glycerol were 1.8 to 4.0 times lower and the water angles 1.4–1.6 times smaller compared to the films synthesized from glucose (71.75 nm and 87.4°, respectively). Those films performed better as cell scaffolds: the number of viable NIH fibroblasts was 1.7–1.9 times higher than on polystyrene (control) or films of P(3HB) synthesized from glucose.

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Держатели документа:
Siberian Fed Univ, 79 Svobodnyi Av, Krasnoyarsk 660041, Russia.
RAS, Krasnoyarsk Sci Ctr SB, Fed Res Ctr, Inst Biophys, Krasnoyarsk, Russia.
RAS, Krasnoyarsk Sci Ctr SB, Fed Res Ctr, LV Kirenskii Inst Phys, Krasnoyarsk, Russia.

Доп.точки доступа:
Shishatskaya, Ekaterina; Nemtsev, I. V.; Немцев, Иван Васильевич; Lukyanenko, A. V.; Лукьяненко, Анна Витальевна; Vasiliev, A. D.; Васильев, Александр Дмитриевич; Kiselev, Evgeniy; Sukovatyi, Aleksey; Volova, Tatiana; RFBRRussian Foundation for Basic Research (RFBR); KKRF [19-43-240012]; Ministry of Education and Science of the Russian FederationMinistry of Education and Science, Russian Federation [FSRZ-2020-0006]
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    Киселев, Евгений Геннадьевич.
    Синтез и характеристики многокомпонентных ПГА / Е. Г. Киселев, А. Д. Васильев, Т. Г. Волова // Журн. СФУ. Биология. - 2021. - Т. 14, № 1. - С. 97-113 ; J. Sib. Fed. Univ. Biol., DOI 10.17516/1997-1389-0325. - Библиогр.: 32. - Работа выполнена по гранту No 19-43-240012 «Биологические и физические принципы получения биоматериалов новой генерации» при поддержке РФФИ и ККФН и госзаданию Министерства науки и высшего образования РФ No FSRZ-2020-0006. В работе использовано оборудование Центра коллективного пользования приборами ФИЦ «КНЦ СО РАН» . - ISSN 1997-1389. - ISSN 2313-5530
   Перевод заглавия: Synthesis and Characterization of Multicomponent PHAs
Кл.слова (ненормированные):
полигидроксиалканоаты (ПГА) -- биосинтез -- субстраты-предшественники -- сополимеры -- физико-химические свойства -- polyhydroxyalkanoates (PHAs) -- biosynthesis -- precursor substrates -- copolymers -- physicochemical properties
Аннотация: В культуре бактерий Cupriavidus necator B10646 в режиме синтеза резервных полигидроксиалканоатов при включении в состав ростовой среды, помимо основного субстрата, глюкозы, субстратов-предшественников различных мономеров монокарбоновых кислот – солей валериановой и гексановой кислот, пропионата, γ-бутиролактона, синтезировано семейство трех- и четырехкомпонентных полимеров с различным набором и соотношением мономеров и исследованы физико-химические свойства. Трехкомпонентные образцы были образованы мономерами 3-гидроксибутирата (3ГБ), 3-гидроксивалерата (3ГВ), 4-гидроксибутирата (4ГБ) или 3-гидроксигексаноата (3ГГ) и имели следующие составы: П(3ГБ/3ГВ/4ГБ) и П(3ГБ/3ГВ/4ГГ); четырехкомпонентные сополимеры имели состав П(3ГБ/3ГВ/4ГБ/3ГГ). Все сополимерные образцы, независимо от состава и соотношения мономеров, обладали сниженными значениями молекулярной массы и повышенными значениями полидисперсности по сравнению с высококристалличным гомополимером 3-гидроксибутирата, но сохраняли свойства термостабильности, имея разрыв между температурой плавления и термической деградации не менее 100-110 °С. Включение в С-цепь 3ГБ мономеров 3ГВ, 4ГБ и 3ГГ вызывало значительные изменения соотношения кристаллической и аморфной фаз и снижение степени кристалличности (Сх), зависящие от типа мономеров и их содержания в сополимере. Максимальное снижение Сх (до 9-17 %) зарегистрировано у трехкомпонентных образцов П(3ГБ/3ГВ/4ГБ), у четырехкомпонентных сополимеров П(3ГБ/3ГВ/4ГБ/3ГГ) – до 30-36 %. Доказана возможность синтеза полимеров разного, в том числе нового, состава, существенно различающихся базовыми свойствами.
Cupriavidus necator B10646 bacterial cells were cultivated in the mode of synthesis of the reserve polyhydroxyalkanoates (PHAs) in the growth medium that contained, in addition to glucose as the main substrate, precursor substrates of the monomers of various monocarboxylic acids – salts of valeric and hexanoic acids, propionate, and γ-butyrolactone. PHA terpolymers and quaterpolymers with different compositions and proportions of monomers were synthesized, and their physicochemical properties were studied. The terpolymers were composed of monomers of 3-hydroxybutyrate (3HB), 3-hydroxyvalerate (3HV), 4-hydroxybutyrate (4HB), or 3-hydroxyhexanoate (3HHx) and had the following compositions: P(3HB/3HB/4HHx) and P(3HB/3HV/4HHx). The quaterpolymers had the following composition: P(3HB/3HV/4HB/3HHx). All copolymer samples, regardless of the composition and proportions of monomers, had lower molecular weights and higher polydispersity values compared to the highly crystalline 3-hydroxybutyrate homopolymer, but retained thermal stability properties, with a difference between the melting point and thermal degradation of at least 100-110 °С. The inclusion of 3HV, 4HB, and 3HHx monomers in the C-chain of 3HB caused changes in the crystalline to amorphous phase ratio and a significant decrease in the degree of crystallinity (Cx), which depended on the type of monomers and their contents in the copolymer. The maximum decrease in Cx (9-17 %) was detected in the P(3HB/3HV/4HB) terpolymer and the P(3HB/3HV/4HB/3HHx) quaterpolymer (30-36 %). The study confirms that there is the possibility of synthesizing polymers with various compositions, including new ones, which differ significantly in their basic properties.

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Держатели документа:
Институт биофизики СО РАН ФИЦ «Красноярский научный центр СО РАН», Российская Федерация, Красноярск
Сибирский федеральный университет, Российская Федерация, Красноярск
Институт физики им. Л.В. Киренского ФИЦ «Красноярский научный центр СО РАН», Российская Федерация, Красноярск

Доп.точки доступа:
Васильев, Александр Дмитриевич; Vasiliev, A. D.; Волова, Т. Г.

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A method of stopband widening in BPF based on two-conductor suspended-substrate resonators / A. A. Leksikov [et al.] // Prog. Electromagn. Res. Lett. - 2018. - Vol. 72. - P. 11-16, DOI 10.2528/PIERL17102302. - Cited References: 10 . - ISSN 1937-6480
Кл.слова (ненормированные):
Fourth order -- Microwave bandpass filter -- Stopband -- Stripline resonators -- Suspended substrates -- Wide upper stopband
Аннотация: A method aiming to widen the upper stopband in a microwave bandpass filter based on two-conductor suspended-substrate stripline resonators is described in this letter. Applicability of the method is illustrated by simulating and fabricating fourth-order filter that has a very wide upper stopband: Δfstop/f0 = 7.92 measured at a level -50 dB, which is achieved because the widths of the inner resonators in the structure are 1.4 times greater than that of the outer ones.

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Держатели документа:
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Leksikov, A. A.; Лексиков, Александр Александрович; Serzhantov, A. M.; Сержантов, Алексей Михайлович; Govorun, I. V.; Говорун, Илья Валерьевич; Afonin, A. O.; Афонин, Алексей Олегович; Ugryumov, A. V.; Угрюмов, Андрей Витальевич; Leksikov, An. A.; Лексиков, Андрей Александрович
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Miniaturized suspended-substrate two-conductors resonator and a filter on its base / A. A. Leksikov [et al.] // Prog. Electromagn. Res. M. - 2019. - Vol. 84. - P. 127-135, DOI 10.2528/PIERM19060604. - Cited References: 14. - The work is supported by the Ministry of science and highest education of the Russian Federation (contract #03.G25.31.0279). . - ISSN 1937-8726
Кл.слова (ненормированные):
Natural frequencies -- Central frequency -- Compact filter -- Coupling coefficient -- Lateral sizes -- Pass bands -- Return loss -- Space between -- Suspended substrates -- Resonators
Аннотация: The paper is devoted to an investigation of two-conductor suspended-substrate resonators. For the purpose of miniaturization conductors of a resonator are folded. Four types of the resonator differing in conductors’ configurations were considered. Their Q0-factors and resonant frequencies were studied. Based on results of the study two types of the resonator appeared unsuitable for an application in compact filters. Two other types were investigated in concern of their interaction: dependencies of coupling coefficients versus space between resonators and versus distance from substrate’s surfaces, and package’s covers were obtained. Based on the dependences a type of the resonator suitable for designing compact BPF was chosen. A four-pole BPF was simulated and fabricated. Good agreement between simulated and experimental results is observed. The main filter’s characteristics are the next: substrate has ε = 80, thickness 0.5 mm, lateral sizes 0.13λg × 0.09λg (18.7mm× 13.2 mm). The central frequency is 305 MHz; bandwidth is 39 MHz; passband minimum insertion loss is 2.0 dB; passband return loss is less −14.6dB; −40 dB stopband width is 480 MHz.

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Держатели документа:
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Leksikov, A. A.; Лексиков, Александр Александрович; Serzhantov, A. M.; Сержантов, Алексей Михайлович; Govorun, I. V.; Говорун, Илья Валерьевич; Afonin, A. O.; Афонин, Алексей Олегович; Ugryumov, A. V.; Угрюмов, Андрей Витальевич; Leksikov, An. A.; Лексиков, Андрей Александрович
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Crystal texture-dependent magnetic and magnetotransport properties of half-metallic Fe3O4 films grown on oxidized Si substrates by reactive deposition / V. V. Balashev [et al.] // J. Alloys Compd. - 2020. - Vol. 815. - Ст. 152398, DOI 10.1016/j.jallcom.2019.152398. - Cited References: 58. - his work is supported in part by the Russian Ministry of Science and Higher Education under the state tasks ( 3.5178.2017/8.9 and 3.4956.2017 ), by Act 211 of the Government of the Russian Federation (contract No. 02.A03.21.0011 ) and by the Comprehensive Program of Basic Research of the Far Eastern Branch of the Russian Academy of Sciences “Far East” 2018–2020 № 18-3-022 ( 0226-18-0031 ). . - ISSN 0925-8388
Кл.слова (ненормированные):
Magnetite -- Crystal texture -- Reactive deposition -- Magnetoresistance -- Magnetic saturation -- FORC
Аннотация: Nanocrystalline magnetite (Fe3O4) films with various preferred crystallite orientations were grown on oxidized silicon surface by reactive iron deposition in an oxygen atmosphere. Depending on the partial pressure of oxygen (PO2), the evolution of the structural, magnetic, and magnetotransport properties of the grown films was investigated. We found that the growth of films containing only the Fe3O4 phase occurs in a certain PO2 range, and the magnetite crystallites may have (311) or (110) preferred orientation. It was revealed that films with (311) and (110) textures have a column structure. An increase in the PO2 leads to a structure transformation from (311) to (110) texture with larger crystallites. A film with (110) texture showed higher values of saturation magnetization, magnetoresistance and spin polarization. The analysis of approach to magnetic saturation revealed that the local magnetic anisotropy of crystallites in textured films is much higher than the anisotropy of bulk magnetite due to the large surface contribution. The FORC diagram method in combination with the approach to magnetic saturation proved the existence of the exchange coupling between large and small grains. Our results open the reliable route for crystal texture-depending manipulation of functional properties of thin magnetite films for advanced spintronic applications.

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Держатели документа:
School of Natural Sciences, Far Eastern Federal University, Vladivostok, Russian Federation
Institute of Automation and Control Processes, FEB RAS, Vladivostok, Russian Federation
Kirensky Institute of Physics, SB RAS, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
National Research South Ural State University, Chelyabinsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Balashev, V. V.; Ermakov, K. S.; Samardak, A. Y.; Ognev, A. V.; Samardak, A. S.; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Volochaev, M. N.; Волочаев, Михаил Николаевич; Tarasov, A. S.; Тарасов, Антон Сергеевич; Korobtsov, V. V.
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Coexistence of the electric polarization and conductive current in the bismuth–neodymium ferrite garnet films / S. S. Aplesnin, A. N. Masyugin, M. N. Volochaev, T. Ishibashi // J. Mater. Sci. Mater. Electron. - 2021. - Vol. 32. - P. 3766-3781, DOI 10.1007/s10854-020-05121-9. - Cited References: 42 . - ISSN 0957-4522
Кл.слова (ненормированные):
Bismuth -- Bismuth compounds -- Dielectric materials -- Epitaxial films -- Ferroelectricity -- Gallium compounds -- Garnets -- Hysteresis -- Iron compounds -- Neodymium -- Neodymium compounds -- Piezoelectricity -- Single crystals -- Substrates
Аннотация: The Nd1Bi2Fe5O12/Nd2Bi1Fe4Ga1O12 polycrystalline films on the glass substrate and the Nd0.5Bi2.5Fe5O12 epitaxial films on the single-crystal gadolinium gallium garnet substrate have been investigated by impedance and dielectric spectroscopy. The inductive contribution to the impedance and two relaxation channels related to ferroelectric domains and migration polarization have been established. The magnetocapacitance and magnetoimpedance have been determined. The conductive and polarization currents and the phase difference between them for the films of two types have been determined. The critical temperatures of the polarization disappearance and hysteresis I–V have been found. A model of the polarization caused by the piezoelectric effect and flexoelectric interaction has been proposed. I–V hysteresis is explained by the presence of ferroelectric domains near the interface and is associated with the hysteresis of the electric polarization.

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Держатели документа:
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Department of Materials Science and Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan

Доп.точки доступа:
Aplesnin, S. S.; Masyugin, A. N.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Ishibashi, T.
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High strength ceramic substrates based on perlite and foam silicates for filtration membranes / N. P. Fadeeva, M. V. Pavlov, I. A. Kharchenko [et al.] // Membr. Membr. Technol. - 2022. - Vol. 4, Is. 3. - P. 170-176, DOI 10.1134/S2517751622030040. - Cited References: 32. - The work was performed using the equipment of the Krasnoyarsk Regional Center for Collective Use of the Federal Research Center, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences. This work was partially supported by the Russian Foundation for Basic Research, grant no. 18-29-19078 . - ISSN 2517-7516
Кл.слова (ненормированные):
perlite -- foam silicate -- ceramic membranes -- substrates -- water permeability
Аннотация: Samples of two-layer ceramics based on polydisperse powder of the pearlite mineral and foam silicates possessing high compressive strength up to 50 MPa, thermal stability up to 1150°C, and water permeability of 272 m3/h m2 bar have been obtained. According to the X-ray powder diffraction analysis, the supporting substrate material is X-ray amorphous. The average pore size of the supporting substrate is 40 µm, while the average pore size of the modifying layer is 17 µm according to the bubble method and electron microscopy. The obtained materials are promising for use as substrates of microfiltration, ultrafiltration, and nanofiltration membranes.

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Публикация на русском языке Высокопрочные керамические подложки на основе перлита и пеносиликатов для фильтрационных мембран [Текст] / Н. П. Фадеева, М. В. Павлов, И. А. Харченко [и др.] // Мембраны и мембран. технол. - 2022. - Т. 12 № 3. - С. 192-199

Держатели документа:
Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Specialized Design and Technological Bureau “Nauka” FRC KSC SB RAS, 50/45 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Federal Research Center, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Fadeeva, N. P.; Pavlov, M. V.; Kharchenko, I. A.; Харченко, Иван Александрович; Simunin, M. M.; Shabanova, K. A.; Шабанова, К. А.; Pavlov, V. F.; Ryzhkov, I. I.
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On the possible magnetic properties of ultrathin Mn2GaC films on Al2O3 substrates / M. A. Vysotin, I. A. Tarasov, A. S. Fedorov [et al.] // JETP Letters. - 2022. - Vol. 116, Is. 5. - P. 323-328, DOI 10.1134/S0021364022601488. - Cited References: 22. - This work was supported jointly by the Russian Foundation for Basic Research, Krasnoyarsk Territory Government, and Krasnoyarsk Regional Science Foundation (project no. 20-42-240012) and by the Ministry of Science and Higher Education of the Russian Federation (agreement no. 075-15-2019-1886, Project for Development of World-Class Laboratories) . - ISSN 0021-3640
Аннотация: The possibility of growth of thin Mn2GaC MAX phase films on Al2O3 substrates with various orientations and their magnetic properties have been studied. The most favorable orientation relationships and interface planes in the Mn2GaC//Al2O3 system, which indicate the possibility of growth on C-face (0001), S-face (011¯1¯), N‑face (112¯3¯), and R-face (01¯12¯) sapphire substrates, have been predicted within a geometric approach. Using the electron density functional method, the possible magnetic properties of continuous ultrathin Mn2GaC films have been calculated under the condition of conservation of uniform expansions/compressions of the MAX phase lattice, which are induced by growth on the predicted substrates. The effect of the deformation of the Mn2GaC lattice on magnetic ordering and magnetic moments has been determined, and the possibility of a transition from an antiferromagnetic to a ferromagnetic state under the action of external magnetic fields has been evaluated. It has been shown that the growth of the ferromagnetic film of the Mn2GaC MAX phase is the most probable on the Al2O3 (0001), Al2O3(112¯3¯), and Al2O3(01¯12¯) substrates.

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Публикация на русском языке О возможных магнитных свойствах ультратонких пленок Mn2GaC на подложках Al2O3 [Текст] / М. А. Высотин, И. А. Тарасов, А. С. Федоров [и др.] // Письма в ЖЭТФ. - 2022. - Т. 116 Вып. 5. - С. 318-323

Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Vysotin, M. A.; Высотин, Максим Александрович; Tarasov, I. A.; Тарасов, Иван Анатольевич; Fedorov, A. S.; Федоров, Александр Семенович; Varnakov, S. N.; Варнаков, Сергей Николаевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич
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10.

Ceramic substrates for filtration membranes based on fine fly ash microspheres / E. V. Fomenko, G. V. Akimochkina, A. G. Anshits [et al.] // Membr. Membr. Technol. - 2024. - Vol. 6, Is. 2. - P. 71-83, DOI 10.1134/S2517751624020033. - Cited References: 58. - The work was carried out with the support of the Russian Science Foundation, project no. 23-19-00269, using the equipment of the Krasnoyarsk Regional Center for Collective Use at the Krasnoyarsk Federal Research Center of the Siberian Branch of the Russian Academy of Sciences . - ISSN 2517-7516. - ISSN 2517-7524
Кл.слова (ненормированные):
fine microspheres -- fly ash -- ceramic materials -- filtration membranes
Аннотация: A procedure has been proposed for producing ceramic substrates for filtration membranes based on a narrow fraction of fine fly ash microspheres using cold uniaxial pressing followed by high-temperature firing. It has been shown that increasing the sintering temperature from 1000 to 1150°C leads to a decrease in open porosity from 40 to 24%, a decrease in the average pore size from 1.60 to 0.34 μm, and an increase in the compressive strength from 9.5 to 159 MPa. The resulting substrates are characterized by water permeability values of 1210, 310, 240, 170 L m−2 h−1 bar−1 at sintering temperatures of 1000, 1050, 1100 and 1150°C, respectively. Experiments on filtration of aqueous suspensions of fine microspheres (dav = 2.5 µm) and microsilica (dav = 1.9 μm) through a substrate produced at a sintering temperature of 1150°C have shown the rejection close to 100%. The proposed methodology for using ash waste in the production of membrane materials promotes the development of technologies for the integrated processing of thermal energy waste.

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Держатели документа:
Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia
Institute of Computational Modelling, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia
Siberian Federal University, 660041, Krasnoyarsk, Russia
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia

Доп.точки доступа:
Fomenko, E. V.; Akimochkina, G. V.; Anshits, A. G.; Fadeeva, N. P.; Kharchenko, I. A.; Elsuf’ev, E. V.; Shabanova, K. A.; Шабанова, Ксения Александровна; Maksimova, A. A.; Ryzhkov, I. I.
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