Căutare după Autor "Gheorghieș, Livia"

Afișează articolele 1-7 of 7

    • Behavior of Ni/al2O3 Nanocomposite Thin Layers in Corroding Environment 

      Gheorghieș, c.; Gheorghieș, Livia; Atanasiu, V.O. (Universitatea "Dunărea de Jos" din Galați, 2009)
      This paper investigates the effects of adding alumina nanoparticles in the electrolyte bath on surface topomorphologies and structure of electrodeposited nickel. The influence on the corrosion process in NaCl solutions ...

    • Characterization of Materials Surface by X-Ray Reflectivity Measurements 

      Gheorghieș, Constantin; Gheorghieș, Livia; Atanasiu, Valeriu (Universitatea ”Dunărea de Jos” din Galați, 2009)
      The mechanical or physical properties of surface determine a certain behaviour of material in various working conditions. For example, the roughness of surface influences the value of friction coefficient. X-ray reflectivity ...

    • Influence of Thermal Treatment on Zirconia Powder 

      Gheorghieș, Livia (Universitatea "Dunărea de Jos" din Galați, 2013)
      Zirconia powder in amorphous state was prepared by electrolytic deposition method (ELD) and then it was subjected to a thermal treatment according to a typical diagram. The structural changes in zirconia powder induced ...

    • Method of Deternining the Main Features of Magnetic Ferromagnetic Materials 

      Gheorghieș, Livia; Dima, Ovidiu (Universitatea "Dunărea de Jos" din Galați, 2012)
      The purpose of this paper is to present a method for determining the main magnetic features such as magnetic induction B, magnetization M, the coercive magnetic field Hc, permeability μ, using hysteresis cycle chart. The ...

    • On the Corrosion Behavior of Organic Nanocomposite Coatings 

      Gheorghieș, Constantin; Gheorghieș, Livia; Oancea, Constantin; Hagioglu, Petrica (Universitatea "Dunarea de Jos" din Galați, 2009)
      Recently, researches on composite coatings of organic nature with the addition of metallic oxide nanopowders have shown an increasing corrosion resistance of metallic materials. Carbon steel shows an improved behavior ...

    • Researches Concerning Phase Transition of Zirconium Titanate Prepared by Electrolytic Method 

      Gheorghieș, Livia (Universitatea "Dunărea de Jos" din Galați, 2006)
      Powder zirconium titanate ceramics obtained by an electrolytic method has been investigated. Continuous phase transition were found to occur in powder zirconium titanate above and below a major discontinuity at 1120oC±10oC. ...

    • A test for Rapid Tribological Characterization of Bearing Steels 

      Gheorghieș, Constantin; Buciumeanu, Mihaela; Scarpete, Dan; Gheorghieș, Livia; Bold, Dorian (Universitatea "Dunărea de Jos" din Galați, 2012)
      In this paper is a study the influence of the material and heat treatment on the changes of the fine structure parameters of the superficial layer of triboelements during the first cycles of rolling contact process. The ...