International Journal of Materials Science and Applications

Volume 5, Issue 1, January 2016

  • The Use of Coatings to Obtain the Diffusion Layer on the Walls of Molds

    Gerasimova Alla, Radyuk Aleksandr Germanovich

    Issue: Volume 5, Issue 1, January 2016
    Pages: 1-4
    Received: 25 November 2015
    Accepted: 10 December 2015
    Published: 15 January 2016
    Abstract: In this work diffusion layers on narrow walls of crystallizers removed from service were created by aluminium spraying on M1 copper and МН2, 5КоКрХ copper alloy with subsequent heat treatment for increasing of life time of crystallizers in continuous casting machines. Layer thickness and microhardness have been assumed as basic measure of serviceab... Show More
  • Gaseous Metal Hydrides MBeH3 and M2BeH4 (M = Li, Na): Quantum Chemical Study of Structure, Vibrational Spectra and Thermodynamic Properties

    Awadhi Shomari, Tatiana P. Pogrebnaya, Alexander M. Pogrebnoi

    Issue: Volume 5, Issue 1, January 2016
    Pages: 5-17
    Received: 22 December 2015
    Accepted: 5 January 2016
    Published: 21 January 2016
    Abstract: The theoretical study of complex hydrides MBeH3 and M2BeH4 (M = Li, Na) have been carried out using DFT MP2 methods with basis set 6-311++G (d, p). The optimized geometrical parameters, vibrational spectra and thermodynamic properties of the hydrides and subunits MH, M2H+, M2H2, BeH2, BeH3 have been determined. Two geometrical configurations, cycl... Show More
  • Controllable Synthesis and Catalytic Property of Novel Copper Oxides (CuO and Cu2O) Nanostructures

    Wenxian Wei, Bin Xu, Qingli Huang

    Issue: Volume 5, Issue 1, January 2016
    Pages: 18-22
    Received: 26 January 2016
    Published: 27 January 2016
    Abstract: Copper oxides (CuO and Cu2O) semiconductor micro- and nanostructures have been selectively synthesized using cupric nitrate trihydrate (Cu(NO3)2•3H2O), potassium biphthalate (KHC8H4O4) and sodium hydroxide (NaOH) as starting materials in water solution by a simple hydrothermal method. The phase and morphology of the products could be controlled by ... Show More
  • Gray’s Paradox and Wave Solutions in Explaining Anomalously Low Friction and Wear in Tribology

    V. M. Stadnichenko, O. M. Troshin

    Issue: Volume 5, Issue 1, January 2016
    Pages: 23-30
    Received: 12 January 2016
    Accepted: 20 January 2016
    Published: 17 February 2016
    Abstract: The results of theoretical and experimental studies of the anomalously low friction are presented in this paper from the standpoint of thermodynamics of non-equilibrium processes, arising under conditions of elastic interaction of micro-relief of tribosystem elements. The dependences of acoustic emission parameters which correspond to the alteratio... Show More
  • Experimental Study on Fracture Behaviors of Concrete Beams Strengthened with FRP Sheet of Different Width

    Juanxia Zhang, Zhonghui Chen, Xianzhang Guo, Wencheng Ma

    Issue: Volume 5, Issue 1, January 2016
    Pages: 31-35
    Received: 31 January 2016
    Accepted: 15 February 2016
    Published: 26 February 2016
    Abstract: A total of six beams have been tested to investigate the influence of FRP sheet on the mechanical behavior of concrete beam with different FRP sheet width. In addition, the failure mode of the concrete beam and FRP reinforced concrete beams were also studied by numerical simulation method named Realistic Failure Process Analysis (RFPA). The results... Show More