(Materials, Technologies, Tools)
Published by The Institute of Mechanics of Metal-Polymer Systems of the National Academy of Sciences of Belarus, Gomel, Republic of Belarus
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MATERIALY. TEKHNOLOGII. INSTRUMENTY (Materials, Technologies, Tools) Published by The Institute of Mechanics of Metal-Polymer Systems of the National Academy of Sciences of Belarus, Gomel, Republic of Belarus |
Anufriev L. P., Baranov V. V., Glukhmanchuk V. V., Solovjov Ya. A., Tarasikov M. V.
Influence of magnetron sputtering conditions on mechanical stresses and dimensional etching anisotropy of molybdenum thin films. pp. 9--13.
Summary: Mechanical stresses distribution in pure molybdenum thin films is corresponding The films were obtained with magnetron sputtering on silicon substrate varying energetic parameters of magnetron discharge. The correlation of etching anisotropy with mechanical stresses distribution through film thickness is showed.
Vorobyov S. A.
True and false resonance modes of vibrations of a sandwich beam. pp. 14--18
Summary: A formulation of initial-boundary problem for dynamic loading of a sandwich beam is presented. An eigenfunction system has been built. Spectrum of fundamental frequencies and modes of the vibrations of the free joint beam were found, which were used for investigations of the solutions in resonance modes of influence of the external harmonic load. Numerical results of computations are presented.
Gromyko Yu. V.
Heatstroke on sandwich to recirculating plate. pp. 19--24
Summary: Explored possibility of excitement of free fluctuations in sandwich to the recirculating plate under the action of the heat flow. Received analytical decision of problem and conducted numerical a study of parameters of fluctuations.
Izmailov V. V., Novoselova M. V.
Simulation of mechanical and electrical processes of disperse material compaction. Report 1. Theoretical and experimental investigation of disperse material compaction. pp. 25--29
Summary: The compaction of granular material has been investigated theoretically and experimentally. The thickest value of coordination number has been obtained by experiment. It varies within the range of 6--7. Theoretical dependences for fource characteristics of granular material compaction have been proposed. These characteristics are the following: real pressure in granules contact and nominal pressure as a function of deformation coefficient and dimensionless density. It has been shown theoretically, that the pressure about triple material hardness corresponds to practically compact material. Theoretical dependences have been verified by experiments
Makarevich E. V., Ivashchenko S. A., Frolov I. S.
Research into the process of formation of tensions in vacuum-plasma coatings made on aluminium bases. pp. 30--33
Summary: The formation of inner tensions in vacuum-plasma are TiN coatings on bases made from aluminium alloys was analyzed. The influence of technological steps of the process of coating piling on dynamics of tension changes is defined. The dependence of tense state of the system base -- coating from conditions of precipitation of TiN is stated.
Starovoytov E. I., Yarovaya A. V., Leonenko D. V.
Resonance influence of recirculating loads on circular sandwich plate. pp. 34--39
Summary: Explored axisymmetric compelled fluctuations round springy sandwich plate under the action of the periodic recirculating surface and power loads, which frequency complies with one of the own considered system frequencies Fur the kinematics description asymmetrical on the thickness of package accepted hypothesises broken normal. Filler is light. Received analytical deciding a problem and conducted their numeric analysis.
Summary: The questions of application of composite materials on basis of thermoplastic and thermoreactive polymers with glass and natural fibres in automative industries under consideration.
Dubinskii M. A., Zhemchuzhnyi M. I.
Particles of the disperse phase distribution in iron-based composite materials produced by the method of electrochemical. pp. 45--47
Summary: The distribution of particles of the disperse phase in iron-based composite materials produced by the method of electrochemical are studied. The parameters of the structure of composite materials are determined. It is shown that the distribution of particles in composite coating is uniform.
Koretskaya L. S., Mikhnevich A. S., Alexandrova T. I.
Physico-mechanical foundations of the kinetics of uv radiation interaction with solids. pp. 48--55
Summary: Physico-mechanical aspects of interaction kinetics between solid bodies (polymer, metal, biological objects, etc.) and UV radiation of the sun spectrum are considered. The interaction resulting in photo-deformation is exhibited in uncorrelated values of photo-deformations under UV and IR radiations. The obtained regularities serve the base for depicting the onset of flaw nucleation and failure of polymers aimed at developing new materials with preset properties. The observed phenomenon can be used as an analytical tool for determining and forecasting elastic properties of different nature materials.
Nevzorova A. B., Vrublevsky V. B., Vrublevskaya V. I.
Bearings of sliding on the basis of wood (re view). pp. 56--64
Summary: In article is considered the history of creation bearings of sliding on the basis of wood in Russia, Byelorussia and other countries. and also the achieved level of development in this area now.
Summary: The applied at the present time exstrusional methods of vegetational materials processing are analised. The peculiarity of the articles manufacturing for construction, engeenering, feeds, food and full are under consideration.
Dovgyalo V. A., Yurkevich O. R.
Production techniques for composite materials based on dispersed polymer of structural purposes. pp. 71--76
Summary: Schematic diagrams of technological equipment designated for dispersion processes at production of prepregs based on composite materials are presented. The technology makes it possible to employ a great variety of initial components, including thermosetting and thermoplastic binders of polymer dispersed compositions with 0.9--2.3 • 103 kg/m3 density and fibrous fillers, both conducting and dielectric with various structural and mechanical characteristics at 0.08 --3 mm thickness.
Vereshchagin M. N., Stasenko D. L.
Research of features of obtaining of discrete fibrous at a dispersion of a spray of a melt by a gas stream. pp. 77--81
Summary: The outcomes of researches of obtaining of a discrete fiber from alloy are submitted on the basis of a system Fe-B-Si-C at a dispersion of a spray of a melt by a gas stream on a surface of a rotated crystallizer. Is rotined, that the rotation rate of a crystallizer renders the greatest influencing on the sizes of received items. The idealized analysis of process of diffluence of fragments of a melt on a surface of a crystallizer is conducted.
Kondratenko V. S., Pryakhin S. S., Semashko V. I., Tolochko N. K.
Time parameters of process in surface thermal cleaving using radiation of CO2-laser. pp. 82--85
Summary: The formation of splitting surface crack on the silicate glasses, subjected by continuous 10.6 µm wave length irradiation and contact cooling, have been studied. The definite bond between heating and heat leveling times and the specific similarity of heating temperature distributions in cross-sections of heated traces, subjected to the thermal cleaving, are corresponding with the regimes of steady separating crack form??tion. The range of laser power, within crack formation takes place, is determined by the choice of process time parameters.
Nupryonok I. S., Shibko A. N.
Effect of combined treatment on the structural and phase composition thin films refractory metals. pp. 86--90
Summary: UV-irradiation of heated materials is method of treatment of microelectronics elements. Structural and phase composition of thin films Ti, V and Zr during heat treatment and simultaneously radiation beam photon with hv = 2.25--3.96 eV is studied. The exposure of thin films of refractory metals to combined treatment simulate process oxidation of thin films and make possible to get difference oxides in depend treatment conditions.
Summary: Based on electron paramagnetic resonance radiospectroscopy and stable nitroxyle radicals pre-introduced in the medium under study as structure-sensitive sensors, new investigation methods of adhesion, long-range surface forces, stress state at interface boundaries in composites and the results obtained are presented.
Tolstoi A. V.
The accelerated estimation of stress relaxation of materials. pp. 96--99
Summary: The method of the accelerated estimation of stress relaxation of materials allowing on a basis of rather short-term tests is developed at the increased temperatures to calculate criteria of relaxation for any levels of initial stresses and temperatures admissible at operation of products from these materials.
Koretskaya L. S.
Gratitude and memory. pp. 101--102
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