Перегляд за темою "Строение и свойства наноразмерных и мезоскопических материалов"

Результати 1-20 з 111

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Concept of Size-Dependent Atomic Interaction Energies for Solid Nanomaterials: Thermodynamic and Diffusion Aspects

Shirinyan, Aram S. (Металлофизика и новейшие технологии, 2015)

Energy-related problems of solid nanoparticles and nanoscale materials concerning their stability and structure are investigated with a specifically targeting on nanocrystalline metallic systems. The new concept based on ...
Effect of Magnetic Field on Electrodeposition of Nanosize Structures

Bondar, E.A.; Luzhbin, D.A. (Металлофизика и новейшие технологии, 2018)

The impact of an external magnetic field on the morphology of nanosize clusters obtained by magnetoelectrolysis of CuSO₄ aqueous solution within the applied magnetic field up to 0.31 T is investigated by the controlled ...
Effect of Mechanical Activation of Highly Disperse SiO₂/α-Fe₂O₃ Mixtures on Distribution of Valence Electrons

Zaulychnyy, Ya.V.; Gun’ko, V.M.; Yavorskyi, Y.V.; Zarko, V.I.; Piotrowska, S.S.; Mishchenko, V.M. (Металлофизика и новейшие технологии, 2015)

The crystal and electronic structures of SiO₂/α-Fe₂O₃ mixtures are analysed using X-ray diffraction and ultra-soft X-ray emission spectroscopy. The energy redistributions of the Fesрd, Sisp, and Op valence electrons due ...
Inconel MA758: новый наноструктурный суперсплав. Акустические и механические свойства в интервале температур 4,2—310 К

Ющенко, К.А.; Семеренко, Ю.А.; Табачникова, Е.Д.; Подольский, А.В.; Скибина, Л.В.; Смирнов, С.Н.; Савченко, В.С. (Металлофизика и новейшие технологии, 2013)

В области температур 4,2—310 К впервые изучены механические и акустические свойства нового наноструктурного сплава Inconel MA758, полученного механическим легированием дисперсными наночастицами оксида иттрия Y₂O₃. Показано, ...
Microwave Properties and Conductivity Anisotropy of Oriented Multiwalled Carbon Nanotube/Epoxy Composites

Vovchenko, L.L.; Zagorodnii, V.V.; Yakovenko, O.S.; Matzui, L.Yu.; Oliynyk, V.V.; Launets, V.L. (Металлофизика и новейшие технологии, 2016)

Epoxy composites with the aligned network of multiwalled carbon nanotubes generated by applying AC electric field during the curing process are fabricated. Industrial nanotubes with diameter of 10—30 nm and length of 10—30 ...
Microwave Properties and Conductivity Anisotropy of Oriented Multiwalled Carbon Nanotube/Epoxy Composites

Vovchenko, L.L.; Zagorodnii, V.V.; Yakovenko, O.S.; Matzui, L.Yu.; Oliynyk, V.V.; Launets, V.L. (Металлофизика и новейшие технологии, 2016)

Epoxy composites with the aligned network of multiwalled carbon nanotubes generated by applying AC electric field during the curing process are fabricated. Industrial nanotubes with diameter of 10—30 nm and length of 10—30 ...
Nanocomposites of Copper—Titanium—Multiwall Carbon Nanotubes

Boshko, O.I.; Dashevskyi, M.M.; Ivanenko, K.O.; Revo, S.L. (Металлофизика и новейшие технологии, 2015)

In this work, the effect of process conditions on the structure, microhardness, and tensile strength of copper—titanium—multiwall carbon nanotubes’ nanocomposite material (NCM) is studied. The goals of the present study ...
On the Advanced Mechanical Properties of Fe–Cu and Y–Cu Nanocomposites Obtained by Mechanical Alloying

Dashevskyi, M.; Belyavina, N.; Nakonechna, O.; Melnichenko, M.; Revo, S. (Металлофизика и новейшие технологии, 2018)

In this study, the Fe–Cu and Y–Cu nanocomposites are synthesized by mechanical alloying of the elemental powder mixture of the iron, copper and crushed yttrium particles in a high-energy planetary ball mill inside the argon ...
On the Frequencies of Collective Electron Oscillations in Conductive Nanofibers

Kornyushin, Yu. (Металлофизика и новейшие технологии, 2014)

The resonant frequency of the collective electron oscillations in a conductive nanofiber is calculated. The friction force acting on the oscillating collective electrons from the side of the ions is taken into account. Due ...
Peculiarities of Electrical Conductivity of Metal/Carbon Nanotubes Array

Nishchenko, M.M.; Mykhailova, H.Yu.; Prikhodko, G.P.; Dashevskyi, M.M.; Nakonechna, O.I. (Металлофизика и новейшие технологии, 2018)

A study of the electrical conductivity of mechanical mixture of both the carbon nanotubes (CNTs) (with work function of ≅ 4.7 eV) and the Cu and Al metal microparticles (with lower work functions of 4.2 and 4.0 eV, ...
Phonon Drag Thermopower in Quantum Wire with Parabolic Confinement Potential

Abbasov, I.I.; Hasanov, Kh.A.; Huseynov, J.I. (Металлофизика и новейшие технологии, 2017)

The quantitative theory of phonon drag thermopower for the one-dimensional electron gas in a quantum wire with a parabolic confinement potential is developed. The temperature gradient is directed along the axis of a quantum ...
Preparation of Co–Gr Nanocomposites and Analysis of Their Tribological and Corrosion Characteristics

Raghav, G.R.; Balaji, A.N.; Muthukrishnan, D.; Sruthi, V. (Металлофизика и новейшие технологии, 2018)

This work summarizes the tribological and corrosion behaviour of Co–Gr nanocomposites. The Co–Gr nanocomposites are synthesized using high-energy ball mill and compacted into cylindrical pellets by hydraulic pressing.
Simulation of X-Ray Diffraction Spectra for AlN/GaN Multiple Quantum Well Structures on AlN(0001) with Interface Roughness and Variation of Vertical Layers Thickness

Liubchenko, O.I.; Kladko, V.P. (Металлофизика и новейшие технологии, 2018)

A detailed XRD analysis of AlN/GaN multiple quantum well (MQW) structures grown on AlN(0001) substrates is proposed. The effect of roughness on the 2θ-ω scans measured in Bragg diffraction for symmetrical reflections is ...
Structural Aspect of Formation of a Nanosystem of In/In₄Se₃ (100)

Galiy, P.V.; Mazur, P.; Ciszewski, A.; Nenchuk, T.M.; Yarovets’, I.R.; Dveriy, O.R. (Металлофизика и новейшие технологии, 2018)

Self-assembled indium deposition-induced nanostructures are obtained on the UHV cleaved (100) surface of In₄Se₃ layered semiconductor crystals. The small indium-deposition rates and short deposition times are chosen to ...
Synthesis and Magnetic Characteristics of N–Co Nanocomposites

Lisova, O.M.; Abramov, M.V.; Makhno, S.M.; Gorbyk, P.P. (Металлофизика и новейшие технологии, 2018)

The single-domain nanoparticles of NiCo, NiCo on the surface of graphene (NiCo@GNP) and NiCo on the surface of silica dioxide (NiCo@SiO₂) are synthesized. Their crystalline structure, surface morphology and magnetic ...
Synthesis of the WC and Mo₂C Carbides by Mechanical Alloying of Metal Powder and Carbon Nanotubes

Nakonechna, O.; Dashevskyi, M.; Belyavina, N. (Металлофизика и новейшие технологии, 2018)

Nanoscale WC and Mo₂C carbides are synthesized from the elemental metal powder (with particle size of about 40 μμm; purity is not less than 99.6% wt.) and the carbon nanotubes (CNTs, with average diameter of 10–20 nm) by ...
The Estimation of Stability and Growth of F.C.C. Iron Nanocluster Containing the Impurity Atoms

Bondarenko, N.V.; Nedolya, A.V. (Металлофизика и новейшие технологии, 2018)

The energy of the isolated iron nanocluster is calculated by molecular mechanics method using Lennard-Jones potential depending on the position of impurities, i.e., interstitial carbon atom and substitutional nickel atom.
Thermal Analyses for Induction Sintering of Powder Metal Compacts up to Sintering Temperature

Çavdar, U.; Atik, E.; Akgül, M.B.; Karaca, H. (Металлофизика и новейшие технологии, 2014)

Induction sintering is developed as an alternative method to conventional sintering in order to sinter iron-based powder metal (PM) compacts. In this study, the 12 kW power and 30 kHz frequency induction-sintering machine ...
XPS/ToF-SIMS Characterization of TiO₂ Supported Au Nanoparticles: Effect of Catalytic CO Oxidation

Chenakin, S.P.; Kruse, N.; Vasylyev, M.A.; Makeeva, I.N. (Металлофизика и новейшие технологии, 2014)

С помощью рентгеновской фотоэлектронной спектроскопии (РФЭС) и времяпролётной вторично-ионной масс-спектрометрии (ВП-ВИМС) проведено сравнительное исследование состава поверхности и электронной структуры катализатора Au/TiO₂ ...
Адсорбція комплексів цис-дихлордіамінплатини наноструктурами на основі магнетиту

Камінський, О.М.; Кусяк, Н.В.; Петрановська, А.Л.; Абрамов, М.В.; Туранська, С.П.; Горбик, П.П.; Чехун, В.Ф. (Металлофизика и новейшие технологии, 2013)

Синтезовано однодоменний магнетит та нанокомпозити Fe₃O₄/димеркаптосукцинова кислота, Fe₃O₄/γ-амінопропілсилоксан, Fe₃O₄/поліакриламід, Fe₃O₄/гідроксоапатит. Вивчено розподіл частинок магнетиту за розмірами та магнетні ...

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