Russian Physics Journal (Russ Phys J )

Publisher: Springer Verlag

Description

Russian Physics Journal a translation of Izvestiya vuz. Fizika covers the broad spectrum of specialized research in applied physics with emphasis on work with practical applications in solid-state physics optics and magnetism. Particularly interesting results are reported in connection with: electroluminescence and crystal phospors; semiconductors; phase transformations in solids; superconductivity; properties of thin films; and magnetomechanical phenomena. The Russian volume-year is published in English beginning in July.

  • Impact factor
    0.41
  • 5-year impact
    0.00
  • Cited half-life
    7.90
  • Immediacy index
    0.06
  • Eigenfactor
    0.00
  • Article influence
    0.00
  • Website
    Russian Physics Journal website
  • Other titles
    Izvestii︠a︡ vysshikh uchebnykh zavedeniĭ
  • ISSN
    1064-8887
  • OCLC
    47207258
  • Material type
    Document, Periodical, Internet resource
  • Document type
    Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Springer Verlag

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • Authors own final version only can be archived
    • Publisher's version/PDF cannot be used
    • On author's website or institutional repository
    • On funders designated website/repository after 12 months at the funders request or as a result of legal obligation
    • Published source must be acknowledged
    • Must link to publisher version
    • Set phrase to accompany link to published version (The original publication is available at www.springerlink.com)
    • Articles in some journals can be made Open Access on payment of additional charge
  • Classification
    ​ green

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: The mechanochemical method is used to synthesize samples of hydroxyapatite (HA) with substitution of the phosphate ion by silicate and zirconate ions, and substitution of calcium ions by copper ions. In the process of mechanochemical synthesis, carbonate ions and water molecules are incorporated into the structure of HA due to interaction of components of the reaction mixture with air. Intrusion of carbonate into the structure of HA is a competing process with modification of apatite by silicate and zirconate anions; therefore, the composition of the product during synthesis differs from the prescribed one. After annealing of the samples, the composition of the anion-modified HA can be described by the formula Са10(РО4)6- х (АО4) х (ОН)2- х , where (АО4)4- is the modifying anion. Substitution of calcium by copper ions localized at the Са1 position has been detected. Silver ions are not incorporated into the structure of HA, but are distributed in the apatite matrix in the form of nanocrystals of metallic silver.
    Russian Physics Journal 01/2014; 56(10).
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    ABSTRACT: Peculiarities of the structure formation of calcium phosphate thin films on titanium, obtained by HF magnetron sputtering during thermal annealing, have been investigated by in situ x-ray diffractometry using synchrotron radiation (SR). It has been shown that formation of a nanostructured film corresponding to polycrystalline hydroxyapatite (HA) according to the XRD data takes place at temperatures of 700-750°C.
    Russian Physics Journal 01/2014; 56(10).
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    ABSTRACT: A relationship between the topography of rough calcium phosphate surfaces having osteogenic niche-reliefs and the electrostatic potential of these surfaces as a possible instrument to control stromal stem cells has been investigated. The in vitro culture of human lung prenatal stromal cells on nanostructured/ultrafine-grained VT1.0 titanium alloy plates with bilateral rough calcium phosphate (CaP) microarc coating was used. It was established that the amplitude of the electret CaP surface potential linearly increased with increasing area of valleys (sockets), and the negative charge is formed on the socket surface. The area of alkaline phosphatase staining (the marker of osteoblast maturation and differentiation) of adherent CD34- CD44+ cells increases linearly with increasing area of artificial microterritory (socket) of the CaP surface occupied with each cell. The negative electret potential in valleys (sockets) of microarc CaP coatings can be the physical mechanism mediating the influence of the surface topography on osteogenic maturation and differentiation of cells in vitro. This mechanism can be called "niche-potential" and can be used as an instrument for biomimetic modification of smooth CaP surfaces to strengthen their integration with the bone tissue.
    Russian Physics Journal 01/2014; 56(10).
  • [Show abstract] [Hide abstract]
    ABSTRACT: Results of investigation of the microstructure, mechanical properties, and thermostability of bioinert titanium VT1-0 and zirconium E110 in nanostructured and ultrafine-grained states formed by combined methods of severe plastic deformation, including abc pressing in a press-mould or without it and multipass rolling in grooved or smooth rolls, are presented. It is demonstrated that the combined severe plastic deformation method allows titanium and zirconium billets in nanostructured and ultrafine-grained states to be obtained that provides substantial improvement of the mechanical properties comparable to the properties of titanium alloys, for example, VT6 and VT16 ones. The yield strength and the microhardness of titanium and zirconium obey the Hall-Petch relationship.
    Russian Physics Journal 01/2014; 56(10).
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    ABSTRACT: Results of an experimental study of the optical characteristics of gas discharges are presented. The study was aimed at optimizing the operating modes of a mid-frequency magnetron sputtering system to efficiently deposit Ti-O-N coatings. The conditions for maintaining the intensity of the chosen spectroscopic lines that ensure synthesis of titanium oxide and titanium oxynitride coatings have been revealed. The morphology, structure, contact angle, and free surface energy of titanium oxide and titanium oxynitride coatings on type 12Kh18N10T stainless steel substrates were examined by using scanning and transmission electron microscopy and infrared spectroscopy, and by measuring the wetting angle. The results of examination of the structure and properties of the synthesized films and their physicomechanical and optical characteristics are given.
    Russian Physics Journal 01/2014; 56(10).
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    ABSTRACT: Regularities of the formation of calcium phosphate coatings on the surface of titanium and zirconium alloys formed by the method of microarc oxidation are investigated. The scheme of deposition of the calcium phosphate coating in microarc discharges is suggested that explains the difference in the morphology, microstructure, and properties of coatings on the surface of titanium and zirconium alloys. It is demonstrated that coatings on the surface of titanium and zirconium alloys have different structures, phase compositions, and physicomechanical properties due to different electrophysical characteristics of metal (titanium and zirconium) substrates, disperse β-Nb particles, and passivating oxide films on their surfaces.
    Russian Physics Journal 01/2014; 56(10).
  • [Show abstract] [Hide abstract]
    ABSTRACT: Physical-chemical and mechanical properties of calcium phosphate coating formed by microarc oxidation method on the zirconium surface were investigated. Two types of electrolytes based on synthesized and biological hydroxyapatite (HA) were used to form the coatings. Deposition of the coating based on synthesized hydroxyapatite lead to an increase in functional properties of coatings (adhesion strength, Ca/P ratio) in comparison with the calcium phosphate coating deposited using biological hydroxyapatite. The x-ray phase analysis and TEM of coatings showed that the coatings have submicrocrystalline structure containing both stoichiometric and non-stoichiometric phases CaZr4(PO4)6, β-Ca2P2O7, β-CaP2O6, ZrP2O7, ZrO2, Zr3O1-x, and Zr.
    Russian Physics Journal 01/2014; 56(10).
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    ABSTRACT: The data on investigation of sample materials used for fabrication of medical implants (stainless steel 316L, and VT1-0 and CoCrMo (Wironit) alloys) are reported, which were subjected to surface treatment with the pulsed electron beam having the following parameters: pulse duration - 20-200 μs, energy density per pulse - 8-20 J/cm2, number of pulses - 1-5, and pulse repetition frequency - 0.3-1 Hz. A significant structure rearrangement is revealed, which is followed by changes in the modified surface layer properties of these materials. The surface roughness is found to decrease, while the corrosion resistance is improved; slight changes are also observed in the modified layer microhardness compared to the initial state.
    Russian Physics Journal 01/2014; 56(10).
  • [Show abstract] [Hide abstract]
    ABSTRACT: Methods of obtaining nanostructured biocompatible coatings on medical implants are considered. The primary focus is on physical bases of formation of nanostructured coatings by different methods of plasma spraying of ceramic powders consisting of agglomerates of large and small particles after agglomeration of the powder and subsequent milling. The possibility is demonstrated of nanostructuring plasma-sprayed coatings by introducing nanoparticles into their porous structure by direct impregnation of the coatings or of the particles themselves before spraying.
    Russian Physics Journal 01/2014; 56(10).
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    ABSTRACT: The potential of x-ray powder diffraction to analyze the size and ultrastructure of metallic nanoparticles (silver, gold, silver-gold alloy, and calcium phosphate) is demonstrated. By the Rietveld analysis, it is possible to estimate the crystallite size for such nanoparticles, even if they are very small (4 nm), using the effect of peak broadening in small crystallites. The results correspond well to crystallite size as determined by transmission electron microscopy (TEM), also confirming the twinned nature of the metallic nanoparticles. For calcium phosphate nanorods which are not twinned, the results by x-ray powder diffraction and TEM are in good agreement.
    Russian Physics Journal 01/2014; 56(10).
  • [Show abstract] [Hide abstract]
    ABSTRACT: Polymers are one of the most interesting classes of materials for bioengineering due to their high biocompatibility and the possibility of regulating their strength and degradation. In bioengineering, the design of a polymer scaffold determines the functional possibilities of the scaffold and its possible medical applications. Traditionally, the design of polymer scaffolds is analyzed with the help of two-dimensional visualization methods, such as optical and electron microscopy, and computer tomography. However, the x-ray region of the electromagnetic spectrum is only insignificantly absorbed by polymers and soft tissue, which means that it does not support computer tomography with sufficient contrast. The present work investigates visualization with the help of an interferometer based on the Talbot effect for three-dimensional visualization of a polymer scaffold in absorption, phase, and dark-field contrasts. A comparison of images obtained by x-ray visualization with histological sections of the scaffold is made. Phase contrast has made it possible to visualize the polymer structure and growth of soft tissues in the volume of the scaffold. In the future, it will be possible to use phase contrast for three-dimensional visualization of polymer scaffolds and soft tissues in vivo as well as in vitro.
    Russian Physics Journal 01/2014; 56(10).
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    ABSTRACT: The exact muffin-tin orbitals (EMTO) method belongs to the third and latest generation of first-principles methods of calculating the electronic structure of materials in the so-called approximation of muffin-tin (MT) orbitals within the framework of the density functional theory. A study has been performed of its applicability for modeling the thermodynamic and mechanical properties of the pure components of Ti and Zr based alloys. The total energies of Ti, Zr, Nb, V, Mo, and Al are calculated in three crystal structures – face-centered cubic (FCC), body-centered cubic (BCC), and hexagonal close-packed (HCP). For all of these elements and crystal structures, we have calculated the theoretical values of the lattice constants, elastic constants, and equations of state. The stable crystal structures have been determined. In all cases, calculations by the EMTO method predict the correct structure of the ground state. For stable structures we compared the obtained results with experiment and with calculations using full potential methods. We have demonstrated the reliability of the EMTO method and conclude that its further application for effective modeling of the properties of disordered alloys based on Ti and Zr is possible.
    Russian Physics Journal 01/2014;
  • Russian Physics Journal 01/2014;
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    ABSTRACT: An investigation into the strength characteristics of ceramics based on diphosphates Ca(3–x)М2x (PO4)2 (x = 0–1 and М = Na, K) provides evidence of composition strengthening in the range х = 0.6–0.8 containing the greatest amount of the supercooled high-temperature modification α-СаМРО4. The method of high-temperature x-ray diffractometry is used to examine thermal expansion of rhenanite phases of СаМРО4.
    Russian Physics Journal 01/2014; 56(10).
  • Russian Physics Journal 12/2013; 56(7):801-806.

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