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1.


   
    Dipole-dipole interaction weakening in ensembles of cobalt microspheres with a nonmagnetic core / S. V. Komogortsev, L. A. Chekanova, O. V. Shabanova [et al.] // Phys. Solid State. - 2022. - Vol. 64, Is. 9. - P. 1263-1268, DOI 10.21883/PSS.2022.09.54163.16HH. - Cited References: 32. - The study was done with financial support from the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory and the Krasnoyarsk Regional Fund of Science within scientific project No. 20-42-240001 . - ISSN 1063-7834. - ISSN 1090-6460
Кл.слова (ненормированные):
magnetic microspheres -- magnetic dipole-dipole interaction
Аннотация: Magnetic microspheres with nonmagnetic acrylic glass core were fabricated using electroless deposition. There are favorable conditions for magnetic flux closure within each particle. As a result, the dipole-dipole interaction in the powder of such microspheres is reduced drastically. This is the key difference between powders of magnetic microspheres and powders of full magnetic spherical particles witch behavior is significantly affected by the dipole-dipole interaction. The magnetic hysteresis in the cobalt microspheres with nonmagnetic core is significantly large then in the full cobalt particles produced using the same technique.

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Публикация на русском языке Ослабление диполь-дипольного взаимодействия в ансамблях микросфер кобальта с немагнитным ядром [Текст] / С. В. Комогорцев, Л. А. Чеканова, О. Г. Шабанова [и др.] // Физ. тверд. тела. - 2022. - Т. 64 Вып. 9. - С. 1272-1277

Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB, Russian Academy of Sciences, Krasnoyarsk, Russia
Siberian Federal University, Krasnoyarsk, Russia
Siberian State University of Science and Technology, Krasnoyarsk, Russia
Special Designing and Technological Bureau “Nauka” KSC SB RAS, Krasnoyarsk, Russia
Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russia
Ural Federal University after the first President of Russia B.N. Yeltsin, Yekaterinburg, Russia

Доп.точки доступа:
Komogortsev, S. V.; Комогорцев, Сергей Викторович; Chekanova, L. A.; Чеканова, Лидия Александровна; Shabanova, O. V.; Shabanov, A. V.; Шабанов, Александр Васильевич; Nemtsev, I. V.; Немцев, Иван Васильевич; Neznakhin, D. S.; Denisova, E. A.; Денисова, Елена Александровна; Felk, V. A.; Mohov, A. A.; Мохов, Алексей Александрович; Iskhakov, R. S.; Исхаков, Рауф Садыкович
}
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2.


   
    Features of self-assembly of opal-like structures based on poly(methyl methacrylate) submicron dispersions / O. V. Shabanova [et al.] // Nanotechnologies Russ. - 2016. - Vol. 11, Is. 9-10. - P. 633-639, DOI 10.1134/S1995078016050153. - Cited References: 18. - This work was supported by and carried out on the equipment of the shared facilities of the Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences. . - ISSN 1995-0780
Кл.слова (ненормированные):
Dispersions -- Esters -- Self assembly -- Aqueous dispersions -- Narrow size distributions -- Sub-micron dispersions -- Sub-micron particles -- Periodic structures
Аннотация: Features of the formation of periodic 2D and 3D opal-like structures depending on the conditions of deposition have been investigated in this work. The subject of the experiments is aqueous dispersions of poly(methyl methacrylate) submicron particles with a narrow size distribution. The particles are precipitated by sedimentation, centrifugation, and the meniscus method. The samples are studied using electron microscopes. Significant morphological differences in periodic structures obtained by various methods are found. © 2016, Pleiades Publishing, Ltd.

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Публикация на русском языке Особенности самосборки опалоподобных структур на основе субмикронных дисперсий полиметилметакрилата [Текст] / О. В. Шабанова [и др.] // Рос. нанотехнологии : Парк-медиа, 2016. - Т. 11 № 9/10. - С. 93-97

Держатели документа:
Special Design and Technological Bureau Nauka, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Shabanova, O. V.; Korshunov, M. A.; Коршунов, Михаил Анатольевич; Nemtsev, I. V.; Shabanov, A. V.; Шабанов, Александр Васильевич
}
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3.


   
    Methods to determine crystal lattice parameters of opal-like structures / I. V. Nemtsev, O. V. Shabanova, I. A. Tambasov [et al.] // J. Struct. Chem. - 2021. - Vol. 62, Is. 4. - P. 641-650, DOI 10.1134/S0022476621040168. - Cited References: 45. - The research was carried out within the state assignment of the Ministry of Science and Higher Education of the Russian Federation (theme No. AAAA-A18-118041990041-8) . - ISSN 0022-4766
Кл.слова (ненормированные):
opal -- colloidal crystal -- stereoregularity -- poly(methyl methacrylate) -- dispersion medium -- photonic crystal structure -- optical spectroscopy -- Bragg diffraction -- electron microscopy
Аннотация: Series of high-quality spherical poly(methyl methacrylate) particles with a polydispersity less than 5% are prepared by chain-growth emulsifier-free controlled radical emulsion polymerization of methyl methacrylate in water. The average diameters in the series varied from 237 nm to 447 nm. The physico-chemical properties of obtained submicrospheres can be varied to make them more stable and stronger by a modified classical synthesis technology whereby 4-10 vol.% of dispersion medium is replaced by acetone. 2D and 3D photonic crystal structures, opals, are prepared from poly(methyl methacrylate) submicrospheres. The crystal structure of the opals is studied by IR spectroscopy and scanning electron microscopy. According to the spectroscopic data, the poly(methyl methacrylate) particles contain significant amounts of water whose evaporation leads to the shrinkage of the spheres. The stereoregularity of the synthesized polymer is studied, the glass-transition temperatures of obtained samples are determined.

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Публикация на русском языке Методы определения параметров кристаллической решетки опалоподобных структур [Текст] / И. В. Немцев, О. В. Шабанова, И. А. Тамбасов [и др.] // Журн. структ. химии. - 2021. - Т. 62 № 4. - С. 684-693

Держатели документа:
Federal Research Center, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Special Designing and Technological Bureau “Nauka” Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Nemtsev, I. V.; Немцев, Иван Васильевич; Shabanova, O. V.; Tambasov, I. A.; Тамбасов, Игорь Анатольевич; Ivanenko, A. A.; Иваненко, Александр Анатольевич; Cherepakhin, A. V.; Черепахин, Александр Владимирович; Shestakov, N. P.; Шестаков, Николай Петрович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич
}
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4.


    Morozov, E. V.
    MRI Comparative Study of Container Geometry Impact on the PMMA Spheres Sedimentation / E. V. Morozov, O. V. Shabanova, O. V. Falaleev // Appl. Magn. Reson. - 2013. - Vol. 44, Is. 5. - P. 619-636, DOI 10.1007/s00723-012-0432-8. - Cited References: 31 . - ISSN 0937-9347
РУБ Physics, Atomic, Molecular & Chemical + Spectroscopy
Рубрики:
OPAL PHOTONIC CRYSTALS
   SUSPENSIONS

   PARTICLES

   VELOCITY

Аннотация: Nuclear magnetic resonance (NMR) imaging results are presented for the comparative study of sedimentation of the polymethylmethacrylate colloidal suspensions with spherical particle diameters of 475, 350 and 255 nm. The time evolution of the particle volume fraction in the sedimenting system, velocity of the fluid/suspension interface, interface broadening, and sediment growth velocity are measured against the system concentration as well as the container geometry. Using the experimental data the hindered settling function is evaluated. The influence of the container geometry on the parameters defining the hindered settling function in different approaches is evaluated for the first time. The limiting value of the particle diameter is estimated at which the container geometry has no impact any longer. This effect can be explained by the microscale structure persisting at low Peclet numbers. In addition, the influence of the container geometry on interface broadening and sediment formation for different particle diameters and volume fractions is studied. Spontaneous sediment packing induced by a modified container geometry has been found. NMR imaging has proven to be a highly efficient research tool for studying sedimentation at low Peclet numbers.

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Russian Acad Sci, Siberian Branch, Special Design & Technol Bur Nauka, Krasnoyarsk 660049, Russia

Доп.точки доступа:
Shabanova, O. V.; Falaleev, O. V.; Морозов, Евгений Владимирович
}
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5.


    Morozov, E. V.
    NMR Imaging application to study colloidal systems of PMMA spheres / E. V. Morozov, O. V. Shabanova, O. V. Falaleev // School for Young Scientists "Magnetic resonance and magnetic phenomena in chemical and biological physics" : Program and Abstracts. - Новосибирск, 2012. - P. 46
Аннотация:

Материалы конференции

Доп.точки доступа:
Shabanova, O. V.; Falaleev, O. V.; Морозов, Евгений Владимирович; Институт химической кинетики и горения им. В.В. Воеводского Сибирского отделения РАН; Международный томографический центр Сибирского отделения РАН; "Magnetic Resonance and Magnetic Phenomena in Chemical and Biological Physics", School for Young Scientists (2012 ; июль ; 16-21 ; Новосибирск)
}
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6.


    Nemtsev, I. V.
    Manufacturing of opals from polymethylmethacrylate particles in dispersion media with different viscosities / I. V. Nemtsev, O. V. Shabanova // J. Sib. Fed. Univ. Math. Phys. - 2021. - Vol. 14, Is. 2. - P. 176-183 ; Журн. СФУ. Матем. и физика, DOI 10.17516/1997-1397-2021-14-2-176-183. - Cited References: 42. - The study was carried out with the support of the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center "Krasnoyarsk Science Center SB RAS". The work was supported by the framework of the state assignment of the Ministry of Science and Higher Education of the Russian Federation (topic no. AAAA-A18-118041990041-8) . - ISSN 1997-1397. - ISSN 2313-6022
   Перевод заглавия: Синтез опалов из частиц полиметилметакрилата в дисперсионных средах с различной вязкостью
Кл.слова (ненормированные):
Emulsion-free polymerization -- Viscosity of dispersion medium -- PMMA beads -- Submicrosphere -- Self-assembly -- 2D and 3D colloidal crystals -- Photonic crystal -- Metamaterial -- SEM micrographs -- IR spectroscopy -- безэмульсионная полимеризация -- вязкость дисперсионной среды -- гранулы ПММА -- субмикросфера -- амосборка -- 2D и 3D коллоидные кристаллы -- фотонный кристалл -- метаматериал -- СЭМ-микрофотографии -- ИК-спектроскопия
Аннотация: The article was prepared based on the materials of the report at the first All-Russian scientific conference with international participation "YENISEI PHOTONICS – 2020". Photonic crystals are structures that have a spatial architecture with a periodically changing complex dielectric function at scales comparable to the wavelengths of light in the visible frequency range. The purpose of this study is to obtain three-dimensional photonic crystals by self-assembly from submicron spherical monodisperse particles of polymethylmethacrylate in dispersion media with different viscosities.
Фотонные кристаллы — это структуры, которые имеют пространственную архитектуру с периодически изменяющейся сложной диэлектрической функцией в масштабах, сопоставимых с длинами волн света в видимом диапазоне частот. Целью данной работы является получение трёхмерных фотонных кристаллов путём самосборки из субмикронных сферических монодисперсных частиц полиметилметакрилата в дисперсных средах с различной вязкостью.

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Держатели документа:
Federal Research Center, KSC SB RAS, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Special Designing and Technological Bureau "Nauka", Krasnoyarsk, Russian Federation

Доп.точки доступа:
Shabanova, O. V.; Немцев, Иван Васильевич

}
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7.


   
    NMR microimaging for studying the initial stages of gelation process in colloidal silica [Text] / E. V. Morozov, O. V. Shabanova [et al.] // Actual problems of magnetic resonance and its application : XII International youth scientific school, Kazan, 5 - 9 October 2009 : program, lecture notes, proceedings : new aspects of magnetic resonance application. - 2009. - P121-125

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Доп.точки доступа:
Morozov, E. V.; Морозов, Евгений Владимирович; Shabanova, O.V.; Pavlov, V.F.; Falaleev, O.V.; Actual problems of magnetic resonance and its application(12 ; 2009 ; Oct. ; 5-9 ; Kazan)
}
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8.


   
    Photonic crystal structures based on submicron particles of polymethyl methacrylate / I. V. Nemtsev, O. V. Shabanova, N. P. Shestakov [et al.] // J. Phys. Conf. Ser. - 2021. - Vol. 1745: 6th International Conference on Information Technology and Nanotechnology, ITNT 2020 (26 - 29 May 2020, Samara, Russian Federation) Conference code: 167456, Is. 1. - Ст. 012024DOI 10.1088/1742-6596/1745/1/012024. - Cited References: 27. - We are grateful to the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center «Krasnoyarsk Science Center SB RAS» for the provided equipment. The authors are also grateful to the Russian Foundation for Basic Research for financial support (grant No.18-42-243013)
Кл.слова (ненормированные):
IR absorption spectra -- Morphological parameters -- Photonic crystal films -- Poly(methyl methacrylate) (PMMA) -- Reflection spectra -- Resonance structure -- Sub-micron particles -- Submicron-sized spheres
Аннотация: Morphological parameters, reflection spectra, IR absorption spectra, and glass transition temperatures of submicron-sized spheres of poly(methyl methacrylate) (PMMA) formed in a water-acetone dispersion medium were studied in comparison with similar spheres obtained in distilled water. Dependence of a shrinkage degree of the submicrospheres on the concentration of acetone in water is studied. Features of the formation of periodic structures based on the water-acetone dispersions of PMMA in four different ways are considered. 2D (photonic crystal films) and 3D (artificial and inverse opals) resonance structures were obtained.

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Держатели документа:
Fed. Res. Ctr. Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences, Akademgorodok street 50, Krasnoyarsk, 660036, Russian Federation
Kirensky Institute of Physics, Fed. Res. Ctr. Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences, Akademgorodok street 50, bul. 38, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Svobodny ave. 79, Krasnoyarsk, 660041, Russian Federation
Spec. Des. and Technol. Bur. Nauka Fed. Res. Ctr. Krasnoyarsk Sci. Ctr. of the Siberian Br. of the Russ. Acad. of Sci., Akademgorodok street 50, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Nemtsev, I. V.; Немцев, Иван Васильевич; Shabanova, O. V.; Shestakov, N. P.; Шестаков, Николай Петрович; Ivanenko, A. A.; Иваненко, Александр Анатольевич; Cherepakhin, A. V.; Черепахин, Александр Владимирович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; International Conference on Information Technology and Nanotechnology(6 ; 2020 ; May 26 - 29 ; Samara, Russian Federation)
}
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9.


   
    REM-containing silicate concentrates / V. F. Pavlov [et al.] // IOP Conf. Ser.: Mater. Sci. Eng. : IOP Publishing, 2016. - Vol. 112, Is. 1, DOI 10.1088/1757-899X/112/1/012030
Кл.слова (ненормированные):
Aluminosilicates -- Rare earth elements -- Rare earths -- Silicates -- A-stable -- Aluminosilicate materials -- Chemical compositions -- Complex processing -- Ferromanganese oxides -- Mineral acid -- Rare earth metals -- X-ray amorphous -- Geochemistry
Аннотация: A new method of advanced complex processing of ores containing rare-earth elements (REE) is proposed to obtain porous X-ray amorphous aluminosilicate material with a stable chemical composition which concentrates oxides of rare-earth metals (REM). The ferromanganese oxide ores of Chuktukon deposit (Krasnoyarsk Region, RF) were used for the experiment. The obtained aluminosilicate material is appropriate for treatment with 5 - 15% solutions of mineral acids to leach REM. © Published under licence by IOP Publishing Ltd.

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Доп.точки доступа:
Pavlov, V. F.; Павлов, Вячеслав Фролович; Shabanova, O. V.; Шабанова О. В.; Pavlov, I. V.; Павлов И. В.; Pavlov, M. V.; Павлов М. В.; Shabanov, V. F.; Шабанов, Василий Филиппович; International symposium on fundamental aspects of rare-earth elements mining and separation and modern materials engineering(2 ; 2015 ; Sept. ; 7-15)
}
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10.


    Shabanov, A. V.
    Synthesis of monodisperse submicron spherical poly(methylmethacrylate) particles and the molecular dynamics simulation / A. V. Shabanov, O. V. Shabanova, M. A. Korshunov // Colloid J. - 2014. - Vol. 76, Is. 1. - P. 113-119, DOI 10.1134/S1061933X14010128. - Cited References: 32 . - ISSN 1061-933X. - ISSN 1608-3067
РУБ Chemistry, Physical

Аннотация: The molecular-dynamics method has been used to determine the conformational states of poly(methyl methacrylate) chains in a medium composed of water and a monomer (methyl methacrylate). Experimentally detected spherical particles resulting from polymerization have been found to take the form of droplet-type aggregates containing several chains, with the water and monomer concentrations in the aggregates differing from those in the dispersion medium. It has been shown that the methyl methacrylate concentration in an initial reaction mixture of about 20% is optimal for the formation of spherical droplet-type aggregates. It has been experimentally established that spherical poly(methyl methacrylate) particles with a narrow size distribution are formed at a methyl methacrylate concentration of ≈23%.

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Публикация на русском языке Шабанов, Александр Васильевич. Синтез монодисперсных субмикронных сферических частиц полиметилметакрилата и его моделирование методом молекулярной динамики [Текст] / А. В. Шабанов, О. В. Шабанова, М. А. Коршунов // Коллоид. журн. : Наука, 2014. - Т. 76 № 1. - С. 120-126

Держатели документа:
Russian Acad Sci, Siberian Branch, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Russian Acad Sci, Nauka Special Design & Technol Bur, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk 660049, Russia

Доп.точки доступа:
Shabanova, O. V.; Korshunov, M. A.; Коршунов, Михаил Анатольевич; Шабанов, Александр Васильевич
}
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