Библиотека института физики им. Л.В. Киренского СО РАН

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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Voronin A. S., Fadeev Y. V., Govorun I. V., Voloshin A. S., Tambasov I. A., Simunin M. M., Khartov S. V.
Заглавие : A transparent radio frequency shielding coating obtained using a self-organized template
Место публикации : Tech. Phys. Lett. - 2021. - Vol. 47, Is. 3. - P.259-262. - ISSN 10637850 (ISSN), DOI 10.1134/S1063785021030159
Примечания : Cited References: 10
Аннотация: We present a simple and affordable technology for producing a thin-film transparent radio-shielding material. The material is a silver micromesh coating produced using a self-organized template. The results of a study of the radio-shielding properties of these coatings in the X and K bands are presented. The micromesh coating with a sheet resistance of 6.8 Ω/sq and integrated optical transmission of 83.6% is characterized by a shielding efficiency of 28.4 dB at a frequency of 8 GHz, which corresponds to a shielding of 99.85% of radiation. Reflection is the main mechanism for shielding radio waves by micromesh coatings.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shabalina A. V., Anikeev S. G., Kulinich S. A., Artyukhova N. V., Vlasov V. A., Kaftaranova M. I., Hodorenko V. N., Yakovlev E. V., Pesterev E. A., Lukyanenko A. V., Volochaev M. N., Pakholkina S., Mamazakirov O., Stolyarov V. V., Mokshin A. V., Gunther V. E.
Заглавие : Combined porous-monolithic TiNi materials surface-modified with electron beam for new-generation rib endoprostheses
Место публикации : J. Funct. Biomater. - 2023. - Vol. 14, Is. 5. - Ст.277. - ISSN 20794983 (eISSN), DOI 10.3390/jfb14050277
Примечания : Cited References: 57. - The study was supported by the Russian Science Foundation (grant no. 19-79-10045). https://rscf.ru/project/19-79-10045/
Аннотация: TiNi alloys are very widely used materials in implant fabrication. When applied in rib replacement, they are required to be manufactured as combined porous-monolithic structures, ideally with a thin, porous part well-adhered to its monolithic substrate. Additionally, good biocompatibility, high corrosion resistance and mechanical durability are also highly demanded. So far, all these parameters have not been achieved in one material, which is why an active search in the field is still underway. In the present study, we prepared new porous-monolithic TiNi materials by sintering a TiNi powder (0–100 μm) on monolithic TiNi plates, followed by surface modification with a high-current pulsed electron beam. The obtained materials were evaluated by a set of surface and phase analysis methods, after which their corrosion resistance and biocompatibility (hemolysis, cytotoxicity, and cell viability) were evaluated. Finally, cell growth tests were conducted. In comparison with flat TiNi monoliths, the newly developed materials were found to have better corrosion resistance, also demonstrating good biocompatibility and potential for cell growth on their surface. Thus, the newly developed porous-on-monolith TiNi materials with different surface porosity and morphology showed promise as potential new-generation implants for use in rib endoprostheses.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Churilov G. N., Nikolaev N. S., Osipova I. V., Cherepakhin A. V., Nemtsev I. V., Velikanov D. A., Andyuseva V. G.
Заглавие : Core-shell Nanosize Particles Mg@Ni: Synthesis and Properties
Место публикации : J. Sib. Fed. Univ. Math. Phys. - 2019. - Vol. 12, Is. 1. - P.28-35. - ISSN 1997-1397, DOI 10.17516/1997-1397-2019-12-1-28-35; \b Журнал СФУ. Математика и физика. - ISSN 2313-6022(eISSN)
Примечания : Cited References: 12
Ключевые слова (''Своб.индексиров.''): core-shell--nanopartials--nickel-magnesium--synthesis in plasma--surface coating--частицы ядро–оболочка--наночастицы--никель-магниевые частицы--плазмохимический синтез--покрытие поверхности частицы
Аннотация: In this paper, we study particles with metallic core (magnesium) - metal shell (nickel) structure, synthesized in metal-containing plasma of high frequency arc discharge. X-ray diffraction analysis, X-ray fluorescence analysis and scanning electron microscopy show that the particles have a uniform nickel shell, which is also indirectly confirmed by comparing the results of hydrogenation of Mg and Mg@Ni particles. Measurement of volume magnetization indicates that shell thickness of most particles is not more than 22 nm.В данной работе исследованы частицы со структурой металлическое ядро (магний) - металлическая оболочка (никель), полученные в металлсодержащей высокочастотной плазме дугового разряда. Методами рентгенофазового анализа, рентгенофлуоресцентного анализа, сканирующей электронной микроскопии показано, что частицы имеют сплошную никелевую оболочку, что также косвенно подтверждается сравнением результатов гидрирования частиц Mg и Mg@Ni. С помощью измерений объемной намагниченности установлено, что наибольшая часть частиц имеет толщину оболочек не более 22 нм.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Voronin A. S., Fadeev Y. V., Govorun I. V., Podshivalov I. V., Simunin M. M., Tambasov I. A., Karpova D. V., Smolyarova T. E., Lukyanenko A. V., Karacharov A. A., Nemtsev I. V., Khartov S. V.
Заглавие : Cu-Ag and Ni-Ag meshes based on cracked template as efficient transparent electromagnetic shielding coating with excellent mechanical performance
Коллективы : Russian Foundation for Basic Research projectRussian Foundation for Basic Research (RFBR) [18-38-00852]; Russian FederationRussian Federation [SP-2235.2019.1]
Место публикации : J. Mater. Sci. - 2021. - Vol. 56. Is. 26. - P.14741-14762. - ISSN 0022-2461, DOI 10.1007/s10853-021-06206-4. - ISSN 1573-4803(eISSN)
Примечания : Cited References: 79. - This work was supported by Russian Foundation for Basic Research project «mol_a» № 18-38-00852 and a scholarship from the President of the Russian Federation SP-2235.2019.1. The sputtering Ag seed mesh and physicochemical analysis of materials was carried out on the equipment of Krasnoyarsk Regional Center of Research Equipment of Federal Research Center «Krasnoyarsk Science Center SB RAS»
Предметные рубрики: COPPER NANOWIRES
METALLIC MESH
PLASTIC SUBSTRATE
ELECTRODES
FILMS
Аннотация: Nowadays, the technical advances call for efficient electromagnetic interference (EMI) shielding of transparent devices which may be subject to data theft. We developed Cu–Ag and Ni–Ag meshes on flexible PET substrate for highly efficiency transparent EMI shielding coating. Cu–Ag and Ni–Ag meshes obtained with galvanic deposition of copper and nickel on thin Ag seed mesh which was made by cracked template method. Coefficients S11, S21 and shielding efficiency (SE) were measured for Cu–Ag and Ni–Ag meshes in X-band (8–12 GHz) and K-band (18–26.5 GHz). 90 s copper deposition increase SE from 23.2 to 43.7 dB at 8 GHz with a transparency of 82.2% and a sheet resistance of 0.25 Ω/sq. The achieved maximum SE was 47.6 dB for Cu–Ag mesh with 67.8% transparency and 41.1 dB for Ni–Ag mesh with 77.8% transparency. Cu–Ag and Ni–Ag meshes have high bending and long-term stability. Minimum bend radius is lower than 100 µm. This effect allows to produce different forms of transparent shielding objects, for example, origami method. Our coatings are the leading among all literary solutions in three-dimensional coordinates: of sheet resistance–optical transmittance–cost of produced.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Saunin V. N., Telegin S. V., Kalita V. I., Denisova E. A.
Заглавие : Formation of bulk magnetically soft materials with nano- and amorphous structure using plasma spraying
Место публикации : Inorganic Materials: Applied Research. - 2012. - Vol. 3, Is. 3. - P.201-209. - ISSN 2075-1133, DOI 10.1134/S2075113312030070
Ключевые слова (''Своб.индексиров.''): amorphous structure--coatings--nanostructure--plasma sputtering--plasmatron--amorphous coating--amorphous structures--magnetically soft materials--plasma sputtering--plasmatrons--coatings--magnetic properties--nanostructures--plasma spraying--plasma jets
Аннотация: A technique for producing coatings with an amorphous and nanostructure using a plasmatron with a gas-dynamic nozzle is proposed. The effect of the technical parameters of plasma spraying on the structure and magnetic properties of amorphous coatings is investigated. В© Pleiades Publishing, Ltd., 2012.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Krasikov A. A., Knyazev Yu. V., Balaev D. A., Velikanov D. A., Stolyar S. V., Mikhlin Yu. L., Yaroslavtsev R. N., Iskhakov R. S.
Заглавие : Interparticle magnetic interactions and magnetic field dependence of superparamagnetic blocking temperature in ferrihydrite nanoparticle powder systems
Место публикации : Phys. B: Condens. Matter. - 2023. - Vol. 660. - Ст.414901. - ISSN 09214526 (ISSN), DOI 10.1016/j.physb.2023.414901. - ISSN 18732135 (eISSN)
Примечания : Cited References: 66. - This study was supported by his work was supported by the Russian Science Foundation, project no. 22-72-00134
Аннотация: In this study, nanoparticles of initial synthetic ferrihydrite have been coated with arabinogalactan. The synthesized series of samples with different degrees of coverage of particles has been characterized by X-ray photoelectron spectroscopy, Mossbauer spectroscopy, transmission electron microscopy and magnetometry. The superparamagnetic blocking temperature decreases monotonically with an increase in the degree of coverage of ferrihydrite particles, which is unambiguously related to the different role of the interparticle magnetic interactions in the investigated powder systems. Analysis of the field dependence of the blocking temperature within the random anisotropy model has shown that an increase in the degree of coverage of ferrihydrite particles leads to a decrease in the size of a cluster in which the behaviors of the nanoparticle magnetic moments are correlated. The results obtained have shown the possibility of effective control of the strength of magnetic interparticle interactions in powder ferrihydrite systems by coating nanoparticles with arabinogalactan.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Denisova E. A., Chekanova L. A., Komogortsev S. V., Nemtsev I. V., Iskhakov R. S., Dolgopolova M. V.
Заглавие : Iron-cobalt coatings produced using an eco-friendly route
Место публикации : J. Supercond. Nov. Magn. - 2021. - Vol. 34, Is. 10. - P.2681-2688. - ISSN 1557-1939, DOI 10.1007/s10948-021-05964-1. - ISSN 1557-1947(eISSN)
Примечания : Cited References: 35. - This work was funded by the Russian Foundation for Basic Research, Krasnoyarsk Territory, and Krasnoyarsk Regional Fund of Science, project number 20-43-240003
Предметные рубрики: MAGNETIC-PROPERTIES
FECO FILMS
THIN-FILMS
CO-FE
ELECTRODEPOSITION
Аннотация: A facile, low-cost, and green route for synthesis of high-induction Fe-Co coatings was developed. Within this approach, three natural reducing agents have been used for deposition of the metal coatings by electroless plating on dielectric and metallic substrates: arabinogalactan, starch, and sucrose. The Fe-Co alloy coatings with Co content from 0 to 94 at.% are nanocrystalline bcc solid solution with carbon additive no more than 2 at%, and pure Co coatings are of hcp structure. The magnetic properties of bcc-based iron-cobalt alloys have been investigated as a function of the atomic composition. A high-saturation magnetization of about 240 emu/g was obtained for Fe70Co30 alloy films deposited onto copper substrate. The local magnetic anisotropy of FeCo alloys increases with a decrease in iron content for all reducing agents. High magnetization close to those in the bulk Fe-Co alloys implies the prospective applications of synthesized Fe-Co coatings as magnetic shield and magnetic sensors.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Denisova E. A., Chekanova L. A., Komogortsev S. V., Iskhakov R. S., Li O. A, Sukhachev A. L., Velikanov D. A., Nemtsev I. V.
Заглавие : Magnetic anisotropy of nanostructured Fe-Ni-C coating produced by electroless deposition
Колич.характеристики :5 с
Коллективы : Nanophysics and Nanoelectronics, International Symposium
Место публикации : Phys. Solid State. - 2023. - Vol. 65, Is. 6. - P.851-855. - ISSN 10637834 (ISSN), DOI 10.21883/PSS.2023.06.56090.14H. - ISSN 10906460 (eISSN)
Примечания : Cited References: 20. - 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. 20-43-240003
Аннотация: The structural and magnetic properties of nanostructured Fe100–xNix-C (0 ˂ x ˂ 100) coatings produced by electroless plating with different carbohydrates as reducing agents have been investigated. The phase-structural state of the films was studied by diffraction and electron microscopy. The Ni concentration ranges of FCC and BCC phases existence in electroless deposited films were determined. The surface morphology, saturation magnetization, local magnetic anisotropy field and coercivities of films are dependent on the iron content and type of reducing agent. The correlation between coercivity Hc and the anisotropy field of the magnetic stochastic domain which were established by correlation magnetometry suggests that the magnitude of Hc is mainly determined by this anisotropy.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Balaev D. A., Krasikov A. A., Knyazev Yu. V., Yaroslavtsev R. N., Velikanov D. A., Mikhlin Yu. L., Volochaev M. N., Bayukov O. A., Ladygina V. P., Stolyar S. V., Iskhakov R. S.
Заглавие : Magnetic collective state formation upon tuning the interparticle interactions in ensembles of ultrafine ferrihydrite nanoparticles
Колич.характеристики :13 с
Место публикации : Nano-Struct. Nano-Objects. - 2024. - Vol. 37. - Ст.101089. - ISSN 2352507X (ISSN), DOI 10.1016/j.nanoso.2023.101089. - ISSN 23525088 (eISSN)
Примечания : Cited References: 93. - The authors thank M.N. Volochaev for the TEM investigations
Аннотация: The results of a study of the dynamic (alternating current magnetic susceptibility) and static magnetic properties, as well as 57Fe Mössbauer spectrometry and ferromagnetic resonance of two-line ferrihydrite nanoparticle systems with varying intensities of magnetic interparticle interactions are reported. The strength of the magnetic interparticle interactions has been tuned by coating (with various degrees of coating) the ferrihydrite particles (2–4 nm in size and an average size ∼2.7 nm) of the initial synthetic sample by arabinogalactan. Also, a biogenic ferrihydrite sample (an average particle size of 2-nm) with a natural organic coating was studied and it has the weakest magnetic interparticle interactions among of all the samples. Relaxation times of the particle’s magnetic moment were determined by the data of static and dynamic magnetic susceptibilities and from analysis of 57Fe Mössbauer spectrometry. Based on the temperature dependences of the relaxation times, it has been concluded that the predominantly collective processes of freezing of the particle magnetic moments occur under the action of the magnetic interparticle interactions. It is shown that an important role in these processes is played by a magnetic subsystem of the surface spins of the particles. The effect of the interplay between the surface spin and magnetic moment subsystems on the static magnetic properties (low-temperature magnetic hysteresis loops) and the parameters of the microwave absorption line under the magnetic resonance conditions is discussed.
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10.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Denisova E. A., Kuzovnikova L. A., Nemtsev I. V., Kuzovnikov A. A., Iskhakov R. S., Lepeshev A. A., Telegin S. V., Yurkin G. Yu., Shepeta N. A.
Заглавие : Magnetic properties of bulk amorphous composite coating Co58Ni10Fe5B16Si11–Al2O3, Co58Ni10Fe5B16Si11–ZrO2 and Co58Ni10Fe5B16Si11–SiO2 produced by plasma spray deposition and dynamic compaction
Коллективы : Российская академия наук, Уральское отделение РАН, Институт физики металлов им. М. Н. Михеева Уральского отделения РАН, Уральский федеральный университет им. первого Президента России Б.Н. Ельцина, Российский фонд фундаментальных исследований, Euro-Asian Symposium "Trends in MAGnetism", "Trends in MAGnetism", Euro-Asian Symposium
Место публикации : Euro-asian symposium "Trends in magnetism" (EASTMAG-2019): Book of abstracts/ чл. конс. ком.: S. G. Ovchinnikov, N. V. Volkov [et al.] ; чл. прогр. ком. D. M. Dzebisashvili [et al.]. - 2019. - Vol. 2. - Ст.J.P42. - P.261. - ISBN 978-5-9500855-7-4 (Шифр В33/E12-125657784)
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