Articles

 

Functional and smart materials

1.
№5-6, 2018
УДК 621.318.2
Davydova E.A.1, Piskorskiy V.P.1, Nazarkin R.M.1
  • [1] Federal State Unitary Enterprise All-Russian Scientific Research Institute of Aviation Materials State Research Center of the Russian Federation
  • THE PHASE COMPOSITION AND MAGNETIC PROPERTIES OF SINTERED THERMOSTABLE HARD-MAGNETIC MATERIALS OF THE Pr–Dy(Gd)–Fe–Co–B SYSTEM (review)
    The review of literature on the problem of phase composition and magnetic properties of thermostable hard-magnetic materials for the PrDy(Gd)FeCoB system are prepared. The influence of alloying by heavy and light rare-earth metals and cobalt on the magnetic properties of NdFeB magnets is analyzed. The influence of manufacturing process conditions and heat treatment together with alloying by copper and gadolinium on the magnetic properties of the Pr–Dy–Fe–Co–B materials are showed.
    Keywords: phase composition, hard-magnetic materials, rare-earth metals, heat treatment, magnetic properties.


    2.
    №5-6, 2018
    УДК 669-15:669.85
    Davydova E.A.1, Rezchikova I.I.1, Nazarkin R.M.1, Chabina E.B.1
  • [1] Federal State Unitary Enterprise All-Russian Scientific Research Institute of Aviation Materials State Research Center of the Russian Federation
  • HEAT TREATMENT EFFECT ON TEMPERATURE STABLE HARD MAGNETIC MATERIALS OF REM–Fe–Co–B SYSTEM STRUCTURE AND PHASE COMPOSITION
    Temperature stable hard magnetic materials of REM–Fe–Co–B system (Pr–Dy–Fe–Co–B and Pr–Dy–Се–Fe–Co–B) structure and phase composition were investigated in initial condition and after heat treatment.
    Keywords: х-ray microanalysis, phase composition, microstructure, hard magnetic materials.


    3.
    №1-2, 2018
    УДК 620.197
    Venediktova M.A.1, Krasnov L.L.1, Kirina Z.V.1
  • [1] Federal State Unitary Enterprise All-Russian Scientific Research Institute of Aviation Materials State Research Center of the Russian Federation
  • SOME ASPECTS OF APPLICATION OF FIREPROOF COVERINGS (review)
    The current state of problem and perspective of production of fireproof coverings is considered. Major factors coverings of foaming type influencing fireproof efficiency are analyzed. Main types of fireproof coverings of domestic and foreign production, and world tendencies are given to developments of this direction. Aspects of creation of compounding of fireproof compositions are mentioned. Characteristics of perspective fireproof coverings intended for protection against overheat of constructive elements of aviation engineering developed by VIAM Federal State Unitary Enterprise are provided.
    Keywords: fireproof pastes, fire retardant, intumescent fire protection coatings, fire protective material, thermal protection, foaming.


    4.
    №5, 2016
    УДК 621.186.4
    Butakov V.V.1
  • [1] Federal State Unitary Enterprise All-Russian Scientific Research Institute of Aviation Materials State Research Center of the Russian Federation
  • Features of receiving flexible heatinsulating material
    The article considers the process of production a flexible insulation material method of forming from water slurries. Hypothesized the relationship parameters of the material structure and its resistance to stretching and bending resistance. A new method of homogenization of water slurry is suggested. The article compares the proposed method with the traditional method of homogenization using a blade mixer. This work has allowed to confirm the hypothesis a more flexible material with the increase of average length of the fibers in the material.
    Keywords: heat insulation, flexible fibrous material, minimum bend radius


    5.
    №4, 2016
    УДК 621.792.053
    Lukina N.Ph.1, I.A. Sharova1
  • [1] Federal State Unitary Enterprise All-Russian Scientific Research Institute of Aviation Materials State Research Center of the Russian Federation
  • Properties and assignment of being self-glued materials aviation assignment
    Properties of being self-glued materials on the different bearing substrates developed by VIAM Federal State Unitary Enterprise are presented. It is shown that these materials are intended for operational repair of the revealed defects of exterior surface of glider and elements of wing of aviation engineering, including in field conditions. Work is executed within implementation of the complex scientific direction 15.1. Multifunction adhesive systems. («The strategic directions of development of materials and technologies of their processing for the period till 2030»)
    Keywords: the sticky tape, being self-glued material, adhesive with constant stickiness, aluminum foil, fabric basis, durability when flaking


    6.
    №4, 2016
    УДК 339.13:621.318.2
    Ospennikova O.G.1, Piskorskiy V.P.1
  • [1] Federal State Unitary Enterprise All-Russian Scientific Research Institute of Aviation Materials State Research Center of the Russian Federation
  • The economics aspects of manufacturing permanents magnets (review)
    In article the main economics questions of production of high-energy permanent magnets are considered. Features of production of permanent magnets in America, Europe, China of willows of Russia are considered. The forecast of development production of permanent magnets in the world and in Russia is given. Work is executed within implementation of the complex scientific direction 11.1. «Thermostable magneto hard materials and mathematical models of calculation of their temperature characteristics for navigation instruments of new generation» («The strategic directions of development of materials and technologies of their processing for the period till 2030»)
    Keywords: high-energy permanent magnets, market of permanent magnets


    7.
    №4, 2016
    УДК 546.65
    Ospennikova O.G.1, Piskorskiy V.P.1
  • [1] Federal State Unitary Enterprise All-Russian Scientific Research Institute of Aviation Materials State Research Center of the Russian Federation
  • Materials for permanent magnets (review)
    The modern basics problems of extraction and production of materials for high-energy permanent magnets are considered. Features of extraction of rare-earth metals in Russia and in the world are considered. The analysis of the world and Russian market of REM is carried out. The analysis of solutions of the developed problems is provided. The analysis of ways of development REM production in Russia is carried out. This work is performed within complex scientific direction 11.1. «Thermostability hard magnetic materials and mathematical models of calculation their temperature characteristics for new generation navigations devices» («The strategical directions of materials development and their processing technologies till 2030»)
    Keywords: rare earth metals, permanent magnets, deposits of rare earth metals


    8.
    №2, 2016
    УДК 621.792.053:346.544.42
    Systems of Standardization for Self-Adhesive Materials
    LiKK, LLC produces wide range of self-adhesive materials. In communication with customers we often faced with difference in terms and methods of evaluation of the quality of self-adhesive materials. The aim of this article to inform specialists working with self-adhesive materials about the most common systems of standards used in world practice for quality control.
    Keywords: standard, Organization for Standardization, self-adhesive materials, label.


    9.
    №2, 2016
    УДК 665.939.744.32:678.043
    Modern developments of the V.A. Kargin Polymer Research Institute in the field of acrylic adhesives
    The article describes adhesives based on acrylic monomers and oligomers designed by V.A. Kargin Polymer Research Institute for use as anaerobic sealants and gaskets, UV-curable coatings and adhesives for constructional purposes, as well as other adhesive and sealant compositions and their application techniques.
    Keywords: anaerobic adhesives and sealants, structural acrylic adhesives.


    10.
    №2, 2016
    УДК 66.014:541.64
    Mukhametov R.R.1
  • [1] Federal State Unitary Enterprise All-Russian Scientific Research Institute of Aviation Materials State Research Center of the Russian Federation
  • Heat-resistant film adhesive of constructive purposes
    The composition and method of synthesis of an adhesive based on the bisphenol A cyanate ester, polysulfone and epoxy novolac resin were developed. The reaction of a cyanate ester with an epoxy resins was investigated by the method of IR spectroscopy. It was shown that copolymerization of an aryl dicyanate and epoxy oligomer leads to receiving the oxazolidinone structures which promoting increase of the moisture resistance. Received epoxy cyanate film adhesive can be used in conditions of high humidity and a temperature to 200°C. This work was executed within implementation of the complex scientific direction 13.1. «Binding for polymeric and composite materials of structural and special purpose» («The strategic directions of development of materials and technologies of their processing for the period till 2030»)
    Keywords: cyanate ester, epoxy resin, cyclotrimerisation, polycyanurate, curing, film adhesive, IR spectroscopy, shear strength.


    11.
    №2, 2016
    УДК 678.686:678.643
    New adhesives of development of OJSC «Composite» for articles of rocket and space engineering
    The paper presents new adhesives for space-rocket techniques: assembly polyurethane adhesives for adhering of bases used for mounting cables and interblock pipelines on spacecraft frame, structural adhesives with high heat resistance (150÷200°С), high-temperature cold-setting adhesives
    Keywords: polyurethane assembly adhesive, structural, high-temperature adhesives, outgassing, shear strength.


    12.
    №2, 2016
    УДК 621.792.053
    Adhesive Materials in the Production of Foil Clad Dielectrics and Printed Circuits
    A review of adhesive materials for production of dielectric substrates of rigid and flexible printed circuits is presented. Testing results for physico-mechanical proper-ties of adhesive compounds and composite materials on their basis are presented.
    Keywords: adhesive materials, printed circuits


    13.
    №2, 2016
    УДК 539.61:539.3
    Adhesion and adhesion mechanics
    Average adhesive strength is the most common measured result of adhesional experiments. It appears to be the function of different experimental parameters. Inhomogenеous stress distribution in the surface of adhesive joint is the reason of this phenomenon. This is the problem of adhesive mechanics. This paper briefly describes proposed physical approach to solving the problem and compares theoretical and experimental data.
    Keywords: adhesion, mechanics, adhesive bonding intensity, stress, strength, contact layer.


    14.
    №4, 2015
    УДК 621.792
    MODERN TENDENCIES OF DEVELOPMENT SILICONE SEALANTS AND COMPOUND ABROAD (review)
    The literary and patent overview is provided in work carried out for the purpose of assessment of tendencies of development organic silicon elastomer abroad. Modern fillers for organic silicon rubbers, modification of organic silicon sealants, and also the main directions in researches of catalysis process hydrosilication abroad are considered.
    Keywords: polymers, sealants, hydrosilication catalysts, hybrid systems.


    15.
    №2, 2015
    УДК 537.311.322
    N.V. Permiakov1, A.O. Belorus1, S.S. Tulenin2, N.A. Forostyanaya2, V.F. Markov2
  • [1] Saint Petersburg Electrochemical University «LETI»
  • [2] Federal State Autonomous Educational Institution of Higher Professional Education «Ural Federal University named after the first President of Russia B.N. Yeltsin»
  • INERT HOLDERS FOR THE SYNTHESIS OF SEMICONDUCTOR FILMS
    The method of chemical deposition requires inert substrate holder. 3D-printing technology is used for producing polypropylene holders of different configurations. The operating mode was adapted with polypropylene.
    Keywords: chemical bath deposition, polypropylene holders, 3D-printer.