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A comparative study of transport properties of composites HTSC+MgTiO3 and HTSC + NiTiO3. The effect of paramagnetic NiTiO3 / M. I. Petrov, D. A. Balaev, K. A. Shaikhutdinov, K. S. Aleksandrov // Physica C-Superconductivity and its Applications. - 2000. - Vol. 341-348, Pt. 3. - P. 1863-1864, DOI 10.1016/S0921-4534(00)01217-X . - ISSN 0921-4534
Кл.слова (ненормированные):
Composite materials -- Copper oxides -- Josephson junction devices -- Magnesium compounds -- Nickel compounds -- Paramagnetism -- Superconductivity -- Thermal effects -- Transport properties -- Yttrium compounds -- Abrikosov vortices flow -- Superconductor insulator superconductor junction -- Thermally activated phase slippage -- High temperature superconductors
Аннотация: Bulk composites Y3/4Lu1/4Ba2Cu3O7+NiTiO3 and Y3/4Lu1/4Ba2Cu3O7+MgTiO3 with insulator volume content 7.5% and 15% modelling a network of Superconductor-Insulator-Superconductor (S-I-S) junctions have been prepared. The ?(T) dependences of composites HTSC+MgTiO3 are described well by the mechanism of Thermally Activated Phase Slippage (TAPS). The anomalous behavior of resistivity ?(T) of HTSC+NiTiO3 composites manifesting as a kink on ?(T) curves at some temperature Tm have been observed. In the temperature range Tm < T < TC the dissipation is Ohmic while below Tm the CVCs are strongly non-linear. This peculiarity is interpreted as arisen owing to Abrikosov vortices flow.

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Доп.точки доступа:
Petrov, M. I.; Петров, Михаил Иванович; Balaev, D. A.; Балаев, Дмитрий Александрович; Shaikhutdinov, K. A.; Шайхутдинов, Кирилл Александрович; Aleksandrov, K. S.; Александров, Кирилл Сергеевич; International conference on materials and mechanisms of superconductivity high temperature superconductors(6 ; 2000 ; Feb. ; 20-25 ; Houston, Texas, USA)
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    Atomic layer deposition ZnO on porous Al2O3 nanofibers film / A. S. Voronin, A. N. Masiygin, M. S. Molokeev, S. V. Khartov // J. Phys. Conf. Ser. - 2020. - Vol. 1679, Is. 2. - Ст. 022072DOI 10.1088/1742-6596/1679/2/022072. - Cited References: 10. - Studies by scanning electron microscopy and X-ray powder diffraction were performed on the equipment of Krasnoyarsk Regional Center of Research Equipment of Federal Research Center «Krasnoyarsk Science Center SB RAS». The transmission electron microscopy investigations were conducted in the SFU Joint Scientific Center supported by the State assignment (#FSRZ-2020-0011) of the Ministry of Science and Higher Education of the Russian Federation
   Перевод заглавия: Нанесение атомного слоя ZnO на пленку из пористых нановолокон Al2O3
Кл.слова (ненормированные):
Alumina -- Aluminum oxide -- Atomic layer deposition -- Atoms -- Composite structures -- High resolution transmission electron microscopy -- II-VI semiconductors -- Nanofibers -- Oxide minerals -- Scanning electron microscopy
Аннотация: The paper presents the results of the formation and study of the morphological and structural characteristics of the mesoporous ZnO / Al2O3 nanofibers film (ZANF). The deposition of a ZnO layer on Al2O3 nanofibers film (ANF) ~ 1 µm thick was carried out by the method of atomic layer deposition. The morphology of the mesoporous composite layer ZnO / Al2O3 (ZANF) has been studied by scanning and transmission electron microscopy. It is shown that in the process of atomic layer deposition, the ZnO layer grows according to the Stranski-Krastanov mechanism. A ZnO layer less than 5 nm thick gives an island structure in which Al2O3 nanofibers are uniformly coated with ZnO particles, an increase in the ZnO layer thickness to 15 nm demonstrates a continuous coating of Al2O3 nanofibers. The system has a core-shell structure. The resulting composite structures are promising for applications in photocatalysis and gas sensing.

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Держатели документа:
Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences (KSC SB RAS), Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Reshetnev Siberian State University Science and Technology, Krasnoyarsk, 660037, Russian Federation
Kirensky Institute of Physics (FRC KSC SB RAS), Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Voronin, A. S.; Masiygin, A. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Khartov, S. V.; International Scientific Conference on Applied Physics, Information Technologies and Engineering(2nd ; 25 September - 4 October 2020 ; Krasnoyarsk, Russian Federation)
}
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Avdeeva, A. Yu.
Splitting of a Tamm plasmon polariton at the interface between a metal and a resonant nanocomposite layer conjugated with a photonic crystal / A. Y. Avdeeva, S. Y. Vetrov, I. V. Timofeev // J. Opt. Soc. Am. B. - 2021. - Vol. 38, Is. 6. - P. 1792-1797, DOI 10.1364/JOSAB.420490. - Cited References: 36. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project No. 19-42-240004 and by Russian Foundation for Basic Research, project No. 19-52-52006. The authors are thankful to Pavel S. Pankin for valuable discussions and comments . - ISSN 0740-3224
Кл.слова (ненормированные):
Dispersion equations -- Finite structures -- Frequency approach -- Nano-composite layers -- Plasmon-polaritons -- Reflectance spectrum -- Resonance frequencies -- Transparent matrix -- Metallic matrix composites
Аннотация: Splitting of a Tamm plasmon polariton at the interface between a metal and a nanocomposite layer conjugated with a photonic crystal (Bragg mirror) has been theoretically investigated. The splitting can be implemented when the Tamm plasmon polariton frequency approaches the resonance frequency of the nanocomposite, which consists of metallic nanoballs dispersed in a transparent matrix. The reflectance spectrum of the p-polarized waves at the normal incidence of light has been calculated. It has been established that the Tamm plasmon polariton splitting significantly depends on the concentration of nanoballs in the nanocomposite layer and its thickness. The solution of the dispersion equation derived for a sample with semi-infinite mirrors has been compared with the spectra obtained for a finite structure by the transfer matrix method.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Vetrov, S. Ya.; Ветров, Степан Яковлевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Авдеева, Анастасия Юрьевна
}
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Belyaev, B. A.
The effective permittivity of an anisotropic composite of spheroidal particles in a dielectric matrix / B. A. Belyaev, V. V. Tyurnev, S. A. Khodenkov // Tech. Phys. Lett. - 2022. - Vol. 48, Is. 3. - P. 110-114, DOI 10.1134/S1063785022040058. - Cited References: 10. - This study was carried out within the framework of state order FEFE-2020-0013 of the Ministry of Science and Higher Education of the Russian Federation . - ISSN 1063-7850
Кл.слова (ненормированные):
composite material -- anisotropic permittivity -- oblate and prolate particles -- depolarization factors
Аннотация: The concentration dependences of the effective permittivity have been obtained for an anisotropic composite consisting of a dielectric matrix filled with codirectional particles in the form of oblate or prolate ellipsoids of revolution (spheroids). The calculation has been made by solving numerically a system of coupled quadratic and integral equations obtained using the rigorous modification of the quasi-static Bruggeman theory. It is shown that the traditional simplified modification of the Bruggeman theory, which is widely used for calculating anisotropic composites, leads to errors of different signs for electromagnetic waves of the longitudinal and transverse polarizations relative to the spheroid axes. The dependences of the errors on the particle concentration are nonmonotonic and extrema observed in them can exceed 100%. The positions and values of the extrema depend strongly on the ellipticity of particles and the contrast of their permittivity with that of the matrix.

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Публикация на русском языке Беляев, Борис Афанасьевич. Эффективная диэлектрическая проницаемость анизотропного композита из сфероидных частиц в диэлектрической матрице [Текст] / Б. А. Беляев, В. В. Тюрнев, С. А. Ходенков // Письма в Журн. техн. физ. - 2021. - Т. 47 Вып. 23. - С. 22-26

Держатели документа:
Siberian State University of Science and Technology, Krasnoyarsk, 660037, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Tyurnev, V. V.; Тюрнев, Владимир Вениаминович; Khodenkov, S. A.
}
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Bulk nanostructured materials produced by dynamic compaction of composite Co-P/Cu and Al2O3/Co-P core-shell particles / L. A. Kuzovnikova [et al.] // VI Euro-Asian Symposium "Trends in MAGnetism" (EASTMAG-2016) : abstracts / ed.: O. A. Maksimova, R. D. Ivantsov. - Krasnoyarsk : KIP RAS SB, 2016. - Ст. P10.19. - P. 487. - This work was supported by Russian Foundation of Basic Research 15-08-06673, 16-03-00256, 16-03-00969 and RFBR-KRFS 15-42-04171 . - ISBN 978-5-904603-06-9
Кл.слова (ненормированные):
dynamic compaction -- nanostructured materials -- magnetic properties

Доп.точки доступа:
Kuzovnikova, L. A.; Denisova, E. A.; Денисова, Елена Александровна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Kuzovnikov, A. A.; Nemtsev, I. V.; Немцев, Иван Васильевич; Mal'tsev, V. K.; Мальцев, Вадим Константинович; Институт физики им. Л.В. Киренского Сибирского отделения РАН

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Cation Distribution in the Composite Materials of the CaFe2O4-α-Fe2O3 Series / Y. V. Knyazev [et al.] // J. Struct. Chem. - 2019. - Vol. 60, Is. 5. - P. 763-771, DOI 10.1134/S0022476619050081. - Cited References: 25. - The study was performed with the financial support of the Russian Foundation for Basic Research, the Government of the Krasnoyarsk Krai, the Krasnoyarsk Regional Science Foundation within the project No. 18-42-243011 "The effect of the composition and the defective structure of CaFe2O4 based "core-shell" composite materials on their electronic and catalytic properties" and the UMNIK program. . - ISSN 0022-4766. - ISSN 1573-8779

РУБ Chemistry, Inorganic & Nuclear + Chemistry, Physical
Рубрики:
PD/P-TYPE CAFE2O4
OXYGEN
CONDUCTIVITY
Кл.слова (ненормированные):
solid-phase synthesis -- scanning electron microscopy -- Mössbauer spectroscopy -- cation vacancies
Аннотация: Structured composite materials CaFe2O4-α-Fe2O3 (α-Fe2O3 content is 2–82 wt.%) are obtained with the method of solid-phase synthesis at 1000 °C. The phase composition of the samples is studied using powder X-ray diffraction. It is shown that the content of CaFe2O4 and α-Fe2O3 phases changes linearly, depending on the composition of the starting material. The scanning electron microscopy data indicate the formation of a two-phase system α-Fe2O3-CaFe2O4. The Mössbauer spectroscopy data at room temperature testify the formation of cationic iron vacancies in the CaFe2O4 crystal structure in the absence of α-Fe2O3 structural defects. Cationic vacancies can be formed during the synthesis in the atmosphere of air.

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Публикация на русском языке Особенности катионного распределения в композиционных материалах ряда СaFe2O4—α-Fe2O3 [Текст] / Ю. В. Князев [и др.] // Журн. структ. химии. - 2019. - Т. 60 № 5. - С. 796-805

Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Fed Krasnoyarsk Res Ctr, Krasnoyarsk, Russia.
Russian Acad Sci, Inst Chem & Chem Technol, Siberian Branch, Fed Krasnoyarsk Res Ctr, Krasnoyarsk, Russia.

Доп.точки доступа:
Knyazev, Yu. V.; Князев, Юрий Владимирович; Shishkina, N. N.; Bayukov, O. A.; Баюков, Олег Артемьевич; Kirik, N. P.; Solovyov, L. A.; Zhizhaev, A. M.; Rabchevsky, E. V.; Anshits, A. G.; Russian Foundation for Basic Research; Government of the Krasnoyarsk Krai; Krasnoyarsk Regional Science Foundation [18-42-243011]; UMNIK program
}
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Cobalt-based bulk nanostructured materials prepared via the dynamic compacting of core–shell composite particles / E. A. Denisova [et al.] // Bull. Russ. Acad. Sci. Phys. - 2016. - Vol. 80, Is. 11. - P. 1377-1380, DOI 10.3103/S1062873816110198. - Cited References: 12. - This work was supported by the Russian Foundation for Basic Research, project nos. 15-08-06673, 16-03-00969, and RFBR and KRFS 15-42-04171. . - ISSN 1062-8738
Кл.слова (ненормированные):
Composite materials -- Bulk nanostructured materials -- Chemical deposition -- Cobalt-based -- Composite particles -- Dynamic compaction -- Magnetic characteristic -- Nano-structured -- Structural and magnetic characteristics -- Powders
Аннотация: Bulk nanostructured Co–P/Cu and Al2O3/Co–P composites are fabricated via dynamic compaction. The initial core–shell particles are synthesized by means of chemical deposition. Structural and magnetic characteristics of the composites are investigated. It is shown that the use of composite particles allows homogeneous compacts with the structure and magnetic characteristics of initial powders to be obtained. © 2016, Allerton Press, Inc.

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Публикация на русском языке Объемные наноструктурированные материалы на основе кобальта, полученные динамическим компактированием композиционных частиц “ядро–оболочка” [Текст] / Е. А. Денисова [и др.] // Изв. РАН. Сер. физич. - 2016. - Т. 80 № 11. - С. 1555-1558

Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Krasnoyarsk Institute of Railway Engineering, Krasnoyarsk, Russian Federation
ZAO Pulsed Technologies, Krasnoyarsk, Russian Federation
Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Denisova, E. A.; Денисова, Елена Александровна; Kuzovnikova, L. A.; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Kuzovnikov, A. A.; Nemtsev, I. V.; Mal'tsev, V. K.; Мальцев, Вадим Константинович
}
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Comparison of the microstructure and magnetic properties of films and composite powders based on 3-d metal / E. A. Denisova, L. A. Chekanova, N. A. Shepeta, L. A. Kuzovnikova // 4th International Baltic Conference on Magnetism (IBCM 2021) : Book of abstracts. - 2021. - P. 193. - Cited References: 1. - The research was funded by RFBR, Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science, project number 20-43-240003.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS

Доп.точки доступа:
Denisova, E. A.; Денисова, Елена Александровна; Chekanova, L. A.; Чеканова, Лидия Александровна; Shepeta, N.A.; Kuzovnikova, L. A.; Кузовникова, Людмила Александровна; International Baltic Conference on Magnetism: focus on nanobiomedicine and smart materials(4 ; 2021 ; Aug. 29-Sept. 2 ; Svetlogorsk, Russia); Балтийский федеральный университет им. И. Канта
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Comparison of the microstructure and magnetic properties of films and composite powders based on 3-D metal / L. A. Chekanova, N. A. Shepeta, E. A. Denisova [et al.] // J. Supercond. Novel Magn. - 2022. - Vol. 35, Is. 11. - P. 3241-3247, DOI 10.1007/s10948-022-06339-w. - Cited References: 19. - This work was funded by the Russian Foundation for Basic Research, Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science, project number 20–43-240003 . - ISSN 1557-1939
Кл.слова (ненормированные):
Composition modulated materials -- Multilayer films -- Composite powders -- Anisotropy field -- Coercivity -- Electroless deposition
Аннотация: The comparison between the magnetic properties of materials with different curvature and spatial distribution of nanograins, such as particles (3D spatial distribution) and multilayer films (2D) was carried out. Functionally graded Co(P)/Ni(P) and Co(P)/CoNi(P) specimens have been fabricated by electroless deposition. The magnetic and structural properties are characterized by electron microscopy, X-ray diffraction, ferromagnetic resonance spectroscopy, and vibrating sample magnetometer. It was demonstrated that the interaction between the Ni(P) core and Co(P) shell of particles could form the functionally graded materials with tailored structure and coercive force. Furthermore, it was found that the magnetic parameters (the local anisotropy field, ferromagnetic resonance linewidth, and coercivity) are mainly determined by the artificially created interface boundaries for all grains’ spatial distribution. The magnetic anisotropy field and coercivity of Co(P)/Ni(P) flat films were characterized by lower values than those for spherical shell of particles with the same composition, produced by the same method.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russian Federation
Krasnoyarsk Railway Transport Institute, Branch of Irkutsk State Transport University, Krasnoyarsk, Russian Federation
Federal Research Center “Krasnoyarsk Science Center, Siberian Branch of the Russian Academy of Sciences”, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Chekanova, L. A.; Чеканова, Лидия Александровна; Shepeta, N. A.; Denisova, E. A.; Денисова, Елена Александровна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Kuzovnikova, L. A.; Nemtsev, I. V.; Немцев, Иван Васильевич
}
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10.

Composite magnetic materials based on porous templates with different pores morphology: synthesis and magnetic properties [Текст] / L. A. Chekanova // V Euro-Asian simposium "Trend in MAGnetism": Nanomagnetism : abstracts. - Vladivostok : FEFU, 2013. - P169 . - ISBN 978-5-7444-3124-2

Доп.точки доступа:
Chekanova, L. A.; Чеканова, Лидия Александровна; Denisova, E. A.; Денисова, Елена Александровна; Mel'nikova, S. V.; Мельникова, Светлана Владимировна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Euro-Asian Symposium "Trends in MAGnetism": Nanomagnetism(5 ; 2013 ; Sept. ; 15-21 ; Vladivostok)
}
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11.

Composite materials obtained via two-nozzle electrospinning from polycarbonate and vinylidene fluoride/tetrafluoroethylene copolymer / E. N. Bolbasov [et al.] // Inorg. Mater.: Appl. Res. - 2018. - Vol. 9, Is. 2. - P. 184-191, DOI 10.1134/S2075113318020065. - Cited References: 36. - The membranes were prepared and studied by means of scanning electron microscopy and X-ray diffraction at the Tomsk National Research Polytechnic University under financial support of the Russian Science Foundation (project no. 16-13-10239). NMR studies were financially supported by the Russian Foundation for Basic Research (project no. 14-29-10178 ofi_m) and performed at the Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences. . - ISSN 2075-1133
Кл.слова (ненормированные):
Electrospinning -- Two-nozzle electrospinning -- Nonwoven composite materials -- Vinylidene fluoride/tetrafluoroethylene copolymer -- Polycarbonate -- Fluoropolymers
Аннотация: Nonwoven composite membranes based on polycarbonate (PC) and vinylidene fluoride/tetrafluoroethylene copolymer were obtained via the two-channel electrospinning method with a common collector. Three groups of materials were studied: the first one was a polymer membrane made of a vinylidene fluoride/tetrafluoroethylene copolymer, the second one was a polymer membrane based on PC, and the third one involved a composite polymer membrane. Scanning electron microscopy studies of morphology of the polymeric membranes showed that a composite material with a variable pore area could be obtained, which allows selection of this parameter depending on the purpose. The resulting composite material and its constituents are studied with nuclear magnetic resonance, IR spectroscopy, X-ray diffraction, and differential scanning calorimetry. There are electrically active crystalline phases in the composite membranes. The obtained nonwoven composite membrane formed is presented as a two-phase system without any chemical interactions between the phases. © A.V. Alekseev, D.Yu. Dubov, M.R. Predtechenskiy, 2017 and Pleiades Publishing, Ltd., 2018.

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Публикация на русском языке Композиционные материалы, сформированные методом двуканального электроформования из поликарбоната и сополимера винилиденфторида с тетрафторэтиленом [Текст] / Е. Н. Больбасов [и др.] // Перспективные матер. - 2017. - № 10. - С. 5-17

Держатели документа:
Tomsk Polytechnic University, Tomsk, 634050, Russian Federation
All-Russian Scientific Research Institute of Aviation Materials, Moscow, 105005, Russian Federation
Kirensky Institute of Physics, 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
Korotkov Scientific and Production Enterprise Temp, Moscow, 127015, Russian Federation

Доп.точки доступа:
Bolbasov, E. N.; Buznik, V. M.; Stankevich, K. S.; Goreninskii, S. I.; Ivanov, Y. N.; Иванов, Юрий Николаевич; Kondrasenko, A. A.; Gryaznov, V. I.; Matsulev, A. N.; Мацулев, Александр Николаевич; Tverdokhlebov, S. I.
}
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12.

Composite materials on high-T-c superconductors and BaPbO3, Ag basis / A. G. Mamalis [et al.] // Physica C. - 2001. - Vol. 364. - P. 174-177, DOI 10.1016/S0921-4534(01)00749-3. - Cited References: 9 . - ISSN 0921-4534

РУБ Physics, Applied

Кл.слова (ненормированные):
composite high-T-c superconductors -- superconducting fault current limiter -- Composite high-Tc superconductors -- Superconducting fault current limiter -- Composite materials -- Electric fault currents -- Interfaces (materials) -- Magnetic variables measurement -- Mathematical models -- Scanning electron microscopy -- Spectrometry -- Superconducting transition temperature -- Superconductivity -- X ray diffraction analysis -- Solid state reactions -- High temperature superconductors
Аннотация: The preparation., processing and characterization of the composite materials on high-T-c superconductor (HTSC) basis, YBa2Cu3O7/Ag and Y0.75Lu0.25Ba2Cu3O7/BaPbO3, is reported. The initial components YBa2Cu3O7 and BaPbO3 were prepared by the standard solid state reaction technique. The microstructures of the samples were observed by scanning electron microscopy. whilst the XRD paterns of the composites HTSC+Ag and HTSC+BaPbO3 revealed the 123 superconducting phase and the Ag or BaPbO3 structure. The chemical compositions of the powders and the interface zone were found by employing energy dispersive spectrometry. The resistive and magnetic measurements of the composites indicated the transition temperature 93.5 K. Application of such composite materials in the construction of a superconducting fault current limiter model is reported. (C) 2001 Elsevier Science B.V. All rights reserved.

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Держатели документа:
Natl Tech Univ Athens, Dept Mech Engn, Mfg Technol Div, Athens 10682, Greece
Russian Acad Sci, Kiensky Inst Phys, Krasnoyarsk, Russia
ИФ СО РАН
Manufacturing Technology Division, Department of Mechanical Engineering, National Technical University of Athens, 42, 28th October Ave., 10682 Athens, Greece
Kirensky Institute of Physics, Siberian Branch of Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Mamalis, A. G.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Petrov, M. I.; Петров, Михаил Иванович; Balaev, D. A.; Балаев, Дмитрий Александрович; Shaihutdinov, K. A.; Gohfeld, D. M.; Kharlamova, S. A.; Vottea, I. N.; International Conference on New Theories, Discoveries and Applications of Superconductors and Related Materials(3 ; 2001 ; Jan. 15-19 ; Honolulu, Hawaii)
}
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13.

Composite polymer granules based on poly-ε-caprolactone and montmorillonite prepared by solution-casting and melt extrusion / A. Sukhanova, A. Boyandin, N. Ertiletskaya [et al.] // Polymers. - 2023. - Vol. 15, Is. 20. - Ст. 4099, DOI 10.3390/polym15204099. - Cited References: 45. - This research was supported by a grant from the Russian Science Foundation, project No. 23-16-00184 . - ISSN 2073-4360
Кл.слова (ненормированные):
biodegradable polymers -- poly-ε-caprolactone -- montmorillonite -- polymer composites -- processing technologies
Аннотация: Eco-friendly polymer composites in the form of granules based on biodegradable polycaprolactone (PCL) with the inclusion of montmorillonite (MMT) from 5 to 50 wt% were prepared by solution-casting and melt extrusion. The physicochemical properties of the composite granules were studied using FTIR spectroscopy, XRDA, DSC, and TGA methods. The paper presents comparative values of crystallinity of composite granules which depend on the method of measuring (XRDA, DSC). It was shown that the crystallinity of PCL/MMT granules was affected by the preparation method and by the MMT content, and that with increase in MMT content, crystallinity increased by up to 61–67%. The change in crystallinity of the granules also affected its biodegradation in soil. At the end of exposure in soil, the mass loss for the granules prepared by solution-casting was more than 90%, whereas for the composite granules prepared by extrusion it was less than 60%. Applying melt extrusion enabled obtaining intercalated composites with predictable features, whereas only mixed-structure microcomposites could be prepared by solution-casting.

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Держатели документа:
Department of Biodegradable Polymers Materials, Reshetnev Siberian State University of Science and Technology, 31 Krasnoyarskiy Rabochiy Av., Krasnoyarsk 660037, Russia
Department of Analysis, Synthesis, Modeling and Digital Design of Smart Materials with Specified Properties, Reshetnev Siberian State University of Science and Technology, 31 Krasnoyarskiy Rabochiy Av., Krasnoyarsk 660037, Russia
Department of Molecular Spectroscopy, Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50/38 Akademgorodok, Krasnoyarsk 660036, Russia
Department Engineering Physics and Radio Electronics, Siberian Federal University, 79 Svobodny Av., Krasnoyarsk 660041, Russia
Department of Digital Design of Transformable Structures based on Smart Materials, Reshetnev Siberian State University of Science and Technology, 31 Krasnoyarskiy Rabochiy Av., Krasnoyarsk 660037, Russia
Department of Scientific Activities, Science and Technology, Siberian Federal University, 79 Svobodny Av., Krasnoyarsk 660041, Russia
Department of Intelligent Materials and Systems, Reshetnev Siberian State University of Science and Technology, 31 Krasnoyarskiy Rabochiy Av., Krasnoyarsk 660037, Russia

Доп.точки доступа:
Sukhanova, Anna; Boyandin, Anatoly; Ertiletskaya, Natalya; Shalygina, Taisia; Shabanov, A. V.; Шабанов, Александр Васильевич; Vasiliev, Alexander; Obvertkin, Ivan; Brott, Valeria; Prokopchuk, Yulia; Samoilo, Alexander
}
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14.

Effect of ball milling and dynamic compaction on magnetic properties of Al2O3/Co(P) composite particles / E. A. Denisova [et al.] // J. Appl. Phys. - 2014. - Vol. 115, Is. 17. - Ст. 17B530, DOI 10.1063/1.4869158. - Cited References: 18. - This work was partially supported by Russian Foundation of Basic Research 13-03-00476-a. . - ISSN 0021-8979. - ISSN 1089-7550

РУБ Physics, Applied
Рубрики:
MECHANOCHEMICAL SYNTHESIS
   MECHANICAL-PROPERTIES
   NANOCOMPOSITE POWDER
   ALLOYS
   NANOCRYSTALLINE
   MICROSTRUCTURE
   FERROMAGNETS
Аннотация: The evolution of the magnetic properties of composite Al2O3/Co(P) particles during ball milling and dynamic compaction is investigated. To prepare starting composite particles, the Al2O3 granules were coated with a Co95P5 shell by electroless plating. The magnetic and structural properties of the composite particles are characterized by scanning electron microscopy, X-ray diffraction, and the use of the Physical Property Measurement System. The use of composite core-shell particles as starting powder for mechanoactivation allows to decrease treatment duration to 1 h and to produce a more homogeneous bulk sample than in the case of the mixture of Co and Al2O3 powders. The magnetic properties of the milled composite particles are correlated with changes in the microstructure. Reduction in grain size of Co during milling leads to an increase of the volume fraction of superparamagnetic particles and to a decrease of the saturation magnetization. The local magnetic anisotropy field depends on the amount of hcp-Co phase in sample. The anisotropy field value decreases from 8.4 kOe to 3.8 kOe with an increase in milling duration up to 75 min. The regimes of dynamic compaction were selected so that the magnetic characteristics-saturation magnetization and coercive field-remained unchanged. (C) 2014 AIP Publishing LLC.

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Держатели документа:
Kirensky Inst Phys SB RAS, Krasnoyarsk, Russia
Krasnoyarsk Inst Railways Transport, Krasnoyarsk, Russia
Inst Sicherheitsforsch & Reaktortech, D-52425 Julich, Germany
Krasnoyarsk Sci Ctr SB RAS, Krasnoyarsk, Russia

Доп.точки доступа:
Denisova, E. A.; Денисова, Елена Александровна; Kuzovnikova, L. A.; Кузовникова, Людмила Александровна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Bukaemskiy, A. A.; Eremin, E. V.; Еремин, Евгений Владимирович; Nemtsev, I. V.; Немцев, Иван Васильевич; Russian Foundation of Basic Research [13-03-00476-a]
}
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15.

Electrical and mechanical properties of the high-permittivity ultra-high-molecular-weight polyethylene-based composite modified by carbon nanotubes / I. A. Markevich, G. E. Selyutin, N. A. Drokin, A. G. Selyutin // Tech. Phys. - 2020. - Vol. 65, Is. 7. - P. 1106-1113, DOI 10.1134/S1063784220070129. - Cited References: 39 . - ISSN 1063-7842
Аннотация: A composite based on ultra-high-molecular-weight polyethylene (UHMWPE) added with 1 wt % of multiwalled carbon nanotubes (MWCNTs) with a high permittivity (ε = 4.5) and a low dielectric loss (tanδ = 10–2) in the frequency range from 100 Hz to 100 MHz has been synthesized, and its main mechanical characteristics have been studied. The material has a low (22 MPa) breaking strength, a high (700%) tensile elongation, and an abrasion resistance higher than that of pure UHMWPE by 37%. It is shown using the X-ray diffraction and differential scanning calorimetry data that the changes in the mechanical properties of the composite are related to the changes in the polymer matrix structure under the action of the high-intensity ultrasonic radiation used for embedding MWCNTs into the polymer.

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Публикация на русском языке Электрофизические и механические свойства композита с повышенной диэлектрической проницаемостью на основе сверхвысокомолекулярного полиэтилена, модифицированного углеродными нанотрубками [Текст] / И. А. Маркевич, Г. Е. Селютин, Н. А. Дрокин, А. Г. Селютин // Журн. техн. физ. - 2020. - Т. 90 Вып. 7. - С. 1151-1158

Держатели документа:
Institute of Chemistry and Chemical Technology, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation

Доп.точки доступа:
Markevich, I. A.; Selyutin, G. E.; Drokin, N. A.; Дрокин, Николай Александрович; Selyutin, A. G.
}
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16.

Enhancement of the magnetoelectric effect in the Bi2Fe4O9/BiFeO3 composite as a result of dipole and migration polarization in mullite / L. V. Udod, S. S. Aplesnin, F. V. Zelenov [et al.] // J. Mater. Sci. - 2024. - Vol. 59, Is. 24. - P. 10763-10775, DOI 10.1007/s10853-024-09885-x. - Cited References: 55 . - ISSN 0022-2461. - ISSN 1573-4803
Аннотация: The effect of the size of Bi2Fe4O9 and BiFeO3 nanoparticles on the magnetoelectric interaction in the Bi2Fe4O9/BiFeO3 composite with a percentage ratio of 67/33 has been studied. The electrostriction and electric polarization on electric and magnetic field in wide temperature range has been measured. The hysteresis of the polarization and I?V characteristics has been found. Temperature ranges with activation and hopping types of conductivity have been found. The mechanism of electric polarization and the crossover temperature from dipole polarization to migration polarization at 260 K have been established. Linear and quadratic contributions to the magnetoelectric effect have been found. Below 120 K the linear contribution is an order of magnitude greater than the quadratic contribution and above 240 K the quadratic contribution to the ME effect prevails. Models have been proposed to explain the enhancement of the magnetoelectric effect as a result of the migration polarization in mullite and linear magnetoelectric effect in bismuth ferrite. The correlation of temperatures of the extremum of the temperature coefficient of the electrical resistance and the magnetic phase transition in mullite at 260 K indicates a polaron-type conductivity and a strong electron?phonon interaction. A change in the sign of the electrostriction coefficient upon heating and the compression temperature of the composite in an electric field was found.

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Держатели документа:
Federal Research Center KSC SB RAS, Kirensky Institute of Physics, Akademgorodok 50, bld. 38, Krasnoyarsk, Russia, 660036
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russia, 660037

Доп.точки доступа:
Udod, L. V.; Удод, Любовь Викторовна; Aplesnin, S. S.; Аплеснин, Сергей Степанович; Zelenov, F. V.; Sitnikov, M. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Romanova, O. B.; Романова, Оксана Борисовна
}
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17.

Exchange interaction in the Co-SiO2 nanocomposite films / E. A. Denisova [et al.] // TRENDS IN MAGNETISM. - 2011. - Vol. 168-169. - P265-268, DOI 10.4028/www.scientific.net/SSP.168-169.265 . - ISSN 1012-0394
Кл.слова (ненормированные):
exchange coupling parameter -- ferromagnetic resonance -- granular composite films -- cobalt -- exchange coupling -- exchange interactions -- ferromagnetic materials -- ferromagnetic resonance -- ferromagnetism -- magnetic resonance measurement -- nanocomposite films -- nanocomposites -- nuclear magnetic resonance -- resonance -- silicon compounds -- spin waves -- cobalt -- exchange coupling -- exchange interactions -- ferromagnetic materials -- ferromagnetic resonance -- ferromagnetism -- magnetic resonance measurement -- magnetism -- nanocomposite films -- nuclear magnetic resonance -- spin fluctuations -- spin waves -- co content -- coupling parameters -- dispersion relations -- granular composite films -- magnetic measurements -- nanogranulars -- nmr studies -- structural state -- granular composites -- nano-granular -- standing spin waves -- composite films -- composite films
Аннотация: The properties of Co-SiO2 nanogranular composite films, containing a Co volume fraction ranging from 0.3 to 0.8, have been characterized by means of magnetic measurements, NMR study, and ferromagnetic resonance. Thermal decrease of CoX(SiO2)100-X magnetization follows the T3/2 law and allows to estimate the exchange interaction constant A. With growing nominal Co content the transitions from granular to continuous structural state at 36% Co are registered by FMR measurements. The spectrum of standing spin-wave has been detected in the perpendicular experiment configuration for films with the Co content above 52 vol. %. It is found that the type of the dispersion relation of spin waves in Co-SiO2 composite films is affected by the exchange coupling fluctuations.

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Держатели документа:
Kirensky Institute of Physics, SB, RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Siberian University of Technology, Krasnoyarsk, 660049, Russian Federation
Voronezh State Technical University, Voronezh, Russian Federation

Доп.точки доступа:
Denisova, E. A.; Денисова, Елена Александровна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Stolyar, S. V.; Столяр, Сергей Викторович; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Chekanova, L. A.; Чеканова, Лидия Александровна; Maltsev, V. K.; Мальцев, Вадим Константинович; Kalinin, Y. E.; Sitnikov, A. V.
}
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18.

Fabrication and thermoelectric properties of SrTiO3–TiO2 composite ceramics / A. P. Zavjalov, G. A. Lyubas, M. R. Sharafutdinov [et al.] // Ceram. Int. - 2022. - Vol. 48, Is. 24. - P. 36500-36514, DOI 10.1016/j.ceramint.2022.08.210. - Cited References: 55. - This work was supported by the Russian Foundation for Basic Research (Project No. 18-29-11044). A.P.Z. appreciate the support from the Ministry of Science and Higher Education of the Russian Federation within the governmental order for the Institute of Solid State Chemistry and Mechanochemistry of SB RAS (project No. FWUS-2021-0004). D.Yu.K. is grateful to the Council on grants of the President of the Russian Federation (scholarship No. SP-3221.2022.1) for supporting the studies devoted to obtaining advanced ceramic materials. A.A.B. O.O.Sh. and E.K.P. grateful to the State Assignment of the Ministry of Science and Higher Education of the Russian Federation (topic No. 00657-2020-0006) for supporting the SEM images obtaining. The work was partially done at the shared research center SSTRC on the basis of the VEPP-4–VEPP-2000 complex at Budker Institute of Nuclear Physics of Siberian Branch of Russian Academy of Sciences . - ISSN 0272-8842. - ISSN 1873-3956
Кл.слова (ненормированные):
Composites -- BaTiO3 and titanates -- TiO2 -- Thermoelectric performance
Аннотация: The paper presents the results of preparing biphase SrTiO3–TiO2 ceramics as a promising system for n-type thermoelectrics using the features of a two-dimensional electron gas. Ceramics was obtained by reactive spark plasma sintering of SrCO3 and TiO2. The dynamics of phase transformations are shown; it is clarified that phase transformations are not the driving force of sintering. The mutual stabilization of the SrTiO3 and TiO2 phases is shown. Unique data on the assessment of the temperature gradient in the system have been obtained. A comparison of the thermoelectric characteristics of biphasic ceramics and its constituent phases allows concluding that the role of the two-dimensional electron gas is reduced to modulating the properties of bulk phases. Clear signs of size quantization were detected by the X-ray luminescence method, which is expressed in the blueshift of the luminescence spectrum by 22.3 ± 0.8 meV.

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Держатели документа:
SEC “Advanced Ceramic Materials”, Far Eastern Federal University, 10 Ajax Bay, Russky Island, Vladivostok, 690922, Russian Federation
Institute of Solid-State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences, 18 Kutateladze Street, Novosibirsk630128, Russian Federation
Synchrotron Radiation Facility SKIF, Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 1 Nikol'skiy Prospekt, Kol'tsovo, 630559, Russian Federation
Laboratory of Physics of Magnetic Phenomena, L.V. Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, 50 Akademgorodok Street, Krasnoyarsk, 660036, Russian Federation
Laboratory of Nuclear Technology, Department of Nuclear Technology, Institute of Science-Intensive Technologies and Advanced Materials, Far Eastern Federal University, 10 Ajax Bay, Russky Island, Vladivostok, 690922, Russian Federation
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 5 Acad. Lavrentiev Avenue, Novosibirsk, 630090, Russian Federation
Institute for Automation and Control Processes, Far Eastern Branch, Russian Academy of Sciences, 5 Radio Street, Vladivostok, 690041, Russian Federation

Доп.точки доступа:
Zavjalov, A. P.; Lyubas, G. A.; Sharafutdinov, M. R.; Tarasov, I. A.; Тарасов, Иван Анатольевич; Belov, A. A.; Shichalin, O. O.; Papynov, E. K.; Kriventsov, V. V.; Kosyanov, D. Y.
}
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19.

Feature issue introduction: Colloidal systems / W. Lee [et al.] // Opt. Mater. Express. - 2017. - Vol. 7, Is. 2. - P. 654-657, DOI 10.1364/OME.7.000654. - Cited References: 7 . - ISSN 2159-3930
Кл.слова (ненормированные):
Semiconductor quantum dots -- Colloidal materials -- Colloidal particle -- Colloidal solutions -- Device performance -- Photonic application -- Photonic properties -- Polymer composite -- Scientific discovery -- Colloids
Аннотация: This feature issue on "Colloidal Systems" of Optical Materials Express highlights recent advances in a broad scope of colloidal particles and structures. It consists of seven papers primarily in the areas of metal colloids, polymer composites and quantum dots in colloidal solutions. It is hoped that this special theme issue can urge and stimulate further research endeavors into novel colloidal materials with improved optical or photonic properties to accelerate scientific discoveries in the field of optical colloids, thereby promoting their structural and device performance for potential photonic applications. © 2017 Optical Society of America.

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College of Photonics, National Chiao Tung University, Tainan, Taiwan
Departamento de Fisica, Universidade Federal de Pernambuco, Recife, PE, Brazil
BASF Corporation, Union, NJ, United States
Kirensky Institute of Physics, Federal Research Center - Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Lee, W.; De Araujo, C. B.; Khanarian, G.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич
}
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20.

Ferromagnetic resonance linewidth in powders consisting of core–shell particles / L. A. Chekanova [et al.] // Bull. Russ. Acad. Sci. Phys. - 2017. - Vol. 81, Is. 3. - P. 351-353, DOI 10.3103/S1062873817030091. - Cited References: 4 . - ISSN 1062-8738
Кл.слова (ненормированные):
Ferromagnetic resonance -- Ferromagnetism -- Linewidth -- Powders -- Resonance -- Shells (structures) -- Composite particles -- Demagnetizing field -- Ferromagnetic cores -- Ferromagnetic resonance linewidth -- Inhomogeneities -- Magnetic particle -- Non-ferromagnetic -- Nonmagnetics -- Ferromagnetic materials
Аннотация: The dependence of the ferromagnetic resonance linewidth on the thickness of nonmagnetic shells in powders consisting of ferromagnetic core–nonferromagnetic shell composite particles is investigated. It is found that an increase in shell thickness reduces the ferromagnetic resonance linewidth by several times, down to values comparable to those for coatings with compositions similar to that of the particle’s core. The observed effect is assumed to result from suppression of the inhomogeneity of demagnetizing fields in a powder consisting of magnetic particles. © 2017, Allerton Press, Inc.

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Публикация на русском языке Ширина линии ферромагнитного резонанса в порошках частиц “ядро–оболочка” [Текст] / Л. А. Чеканова [и др.] // Изв. РАН. Сер. физич. - 2017. - Т. 81 № 3. - С. 380-382

Держатели документа:
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Krasnoyarsk Institute of Railway Engineering, Irkutsk State Railway Transport Engineering University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Chekanova, L. A.; Чеканова, Лидия Александровна; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Denisova, E. A.; Денисова, Елена Александровна; Kuzovnikova, L. A.; Nemtsev, I. V.; Немцев, Иван Васильевич; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Iskhakov, R. S.; Исхаков, Рауф Садыкович
}
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