PhC-2016

A.A. Ahkubekov, P.K. Korotkov, M.Z. Laypanov, A.R. Manukyants, M.Kh. Ponegev, V.A. Sozaev

Abstract: Studying of the contact melting (CM) in Cu / Al system plays an important role for the development of technology of the contact – reactive soldering. Also the data on CM can be of interest at design of layered intermetallic composite material of the system Cu – Al, by development of heat-dissipating devices, powerful high-frequency diodes and transistors. In the present work an attempt is made to reveal features of the structure of contact layers at contact melting of copper with aluminum of the AMG-2 brand (addition of Mg ~ 2 wet. %, the rest aluminum) and to fix influence of Mg impurity on the time dependence of the thickness of a contact layer for system Cu / Al .
Keywords: contact melting, intermetallics, phase formation, impurity

P.O. Baburkin, P.V. Komarov

Abstract: We present new results of computer simulations of synthesis of block A – AB copolymers. Our model shows that compact and water-soluble globules, which can be used as basis for sinzymes, can be obtained in narrow range of investigated parameters.
Keywords: coarse-grained computer simulation, amphiphilic copolymers, protein-like polymers, enzyme

A.M. Bagov

Abstract: A number of new systems has been increased in which the decrease of the temperature of a phase transition (melting) in the contact of pairs of solid heterogeneous metals (with differing state diagrams) can be observed. The joining of samples has been revealed in all studied systems and takes place in some temporal and temperature ranges specific to each pair of metals. The experiments have been conducted at the presence of electromigration. The passing current helps to identify the mentioned process.
Keywords: contact melting, electromigration, metals, alloys, diffusion, delta Т – effect, metastable contact melting, intermetallics, eutectics

B.K. Barakhtin, R.V. Sedletsky

Abstract: The polymer matrix composites samples have been investigated. The volume portions filling was ranged from 0,45 to 0,65 . At the density, modulus of elasticity, strength and pitch amorphous coefficient increasing background, the quasi-periodical oscillations for the first time were fixed. Structure investigations with electron scanner and atomic force microscopes were carried out.
Keywords: polymer composite materials, mechanical tests, structure investigations

S.A. Bibanaeva, V.M. Skachkov, B.N. Latosh, N.A. Sabirzyanov

Abstract: The article describes a method of producing a porous material of aluminum powders doped with small additions of barium after treatment with water. Studies of the strength properties, microstructure, specific surface area of the original samples and derived products were performed.
Keywords: aluminium powder, barium, cermet, specific surface, microhardness, scanning microscopy

A.V. Vasiliev, A.G. Fedorovskiy, A.A. Sycheva, L.A. Trusov, E.O. Anokhin, P.E. Kazin

Abstract: Oxide glasses were obtained by high-speed melt quenching. The glass ceramic samples were prepared by thermal crystallization method in reducing atmosphere. The phase composition and magnetic characteristics of the glass-containing Sr₂FeMoO₃ are investigated.
Keywords: strontium hexaferrite, magnetic nanoparticles, magnetic fluids, colloids, colloidal stability

E.A. Bogdanova, V.M. Skachkov, A.G. Shirokova, I.G. Grigorov, N.A. Sabirzyanov

Abstract: A number of works on creation of biocomposites based on highly porous titanium coated with hydroxyapatite (HAP) was conducted. Features of formation of the surface layer with the combination of the vacuum impregnation method and thermal annealing have been investigated. The effect of the heat treatment on the adhesive properties of the biocoatings is studied.
Keywords: composite biomaterial, bioactive coating, heat treatment, adhesion strength, hydroxyapatite (HAP), porous titanium

A.N. Bolotov, V.V. Novikov, O.O. Novikova

Abstract: In the present work a technology is discussed of producing magnetic grease oil on the basis of a chlorsiloxane including synthesis from its molecules of the surfactant stabilizing magnetite particles. The obtained oil has high tribotechnical properties during the work in extreme service conditions.
Keywords: nanostructural magnetic oil, friction

Yu.V. Brylkin, G.N. Zalogin, A.V. Krasilnikov, N.F. Rudin

Abstract: The possibility of synthesis of carbon nanostructures by plasma-chemical method based on the decomposition of methane in an argon plasma is shown.
Keywords: scanning tunneling microscopy, electron microscopy, RF plasma torch, carbon materials

E.A. Gorbachev, L.A. Trusov, A.A. Eliseev, A.E. Sleptsova, E.A. Anokhin, A.V. Vasiliev, P.E. Kazin

Abstract: Exchange-coupled core/shell-structured magnetic materials can be potentially used as rare-earth free permanent magnets, but their synthesis presents a challenge. We report a wet chemistry method to synthesize core/shell structured particles consisting of a magnetically hard SrFe_10,7Al_1,3O₁₉ core and a soft Co shell.
Keywords: magnetic materials, composites, hexaferrites, chemical synthesis, nanostructures