• Analysis of Gear Quality Criteria and Performance of Curved Face width Spur Gears 

      Andrei, Laurentia; Andrei, Gabriel; Walton, Douglas; Dearn, Karl (Universitatea ”Dunărea de Jos” din Galați, 2008)
      For plastic gears, developments in composites and tooth geometry are essential for their selection in power transmissions. In order to enhance the transmissible power level of the plastic spur gears, an arc-shaped tooth ...
    • Effect of Single-Wall Carbon Nanotubes on Thermal Properties of Polyester Composites 

      Ciupagea, Luminița; Iliuță, Virgil; Andrei, Gabriel (Universitatea "Dunărea de Jos" din Galați, 2013)
      This paper presents the effect of different contents of single-wall carbon nanotubes (SWCNT) on the specific heat and coefficient of thermal expansion of polyester composites. By adding small content of SWCNT in the ...
    • Electric and Electromagnetic Properties of Fiber Fabric Based Filled Epoxy Composites 

      Cîrciumaru, Adrian; Andrei, Gabriel; Bîrsan, Iulian; Dima, Dumitru (Universitatea "Dunărea de Jos" din Galați, 2007)
      Electric and magnetic properties of laminate fiber fabric based epoxy composites are investigated through experimental techniques. Various concentrations of powder fillers were used in order to change the basic properties ...
    • Electrical Properties Characterization of Vinyl ester Resin Filled with carbon Nanotubes 

      Chirița, Georgel; Andrei, Gabriel; Bîrsan, Iulian Gabriel; Dumitru, Dima; Cantaragiu, Alina (Universitatea "Dunărea de Jos" din Galați, 2015)
      In this paper the authors have done a characterization of the electrical properties of vinyl ester based nanocomposites containing different percentages of carbon nanomaterials The carbon fillers used in this study were ...
    • Experimental Validation of a New Dispersion Method of Additive Particles into Polymer Matrix Composites 

      Dima, Dumitru; Murărescu, Monica; Andrei, Gabriel (Universitatea ”Dunărea de Jos” din Galați, 2009)
      The general expected properties of the composite materials are the result of the efficient reinforcement distribution of nanometric particles, one of the most important methods considers their dispersion. The aim of this ...
    • Influence of Sliding Speed and Average Pressure in Dry Regim Upon Wear of Composite with PA and Micro Glass Spheres 

      Maftei, Laura; Deleanu, Lorena; Andrei, Gabriel (Universitatea ”Dunărea de Jos” din Galați, 2009)
      The papers presents the wear results of testing a set of composites PA + 1% black carbon + x% micro glass spheres, where x is the micro glass sphere concentration (x=0, 5, 10, 20, 30wt) using a pin-on-disc tribotester, for ...
    • Multiwall Carbon Nanotubes Coated with Iron (iii) Oxide and Improved Dispersion Method for Nanostructured Polymer Composites 

      Murărescu, Monica; Dima, Dumitru; Andrei, Gabriel; Roman, Igor; Chiculiță, Simona (UDJG, 2010)
      The aim of this paper is to describe a method of coating with ceramic molecular layer, in order to obtain a MWCNTs (multiwall carbon nanotubes) functionalized surface, chemical bond energy increase and physico-chemical ...
    • Optimisation of the Tooth Flank Geometry for Non-Standard Spur gear 

      Andrei, Laurentia; Andrei, Gabriel; Walton, Douglas (Universitatea "Dunărea de Jos" din Galaţi, 2006)
      In order to increase the transmissible power level of the plastic spur gears, a non-standard tooth is designed, with a variable geometry along the gear facewidth. The variation of the tooth flank geometry, generated by ...
    • Properties and Applications of Nanocellulose Polymer Composites. A Short Review 

      Rodeanu, Magdalena Silvia; Baștiurea, Marian; Andrei, Gabriel; Dima, Dumitru (Universitatea "Dunărea de Jos" din Galați, 2013)
      This paper covers some aspects related to the structure of natural cellulose fibers as well the sources, obtaining methods, properties and their applications. In contrast with aramide and other materials resulted from ...
    • Statistical Assessment of Surface Quality Using 3D Profilometry Parameters 

      Deleanu, Lorena; Andrei, Gabriel; Ciortan, Sorin; Cantaragiu, Alina; Besnea, Aida; Trufașu, Cătălin; Podaru, Geanina (Universitatea ”Dunărea de Jos” din Galați, 2009)
      he paper presents a statistical analysis for quality assessment of metallic surfaces and coating in order to use the conclusions for improving coating technology. Surface investigation was done with the help of a 3D ...
    • A study of Electric Properties of Fiber Fabric Based Filled Epoxy Composites 

      Andrei, Gabriel; Cîrciumaru, Adrian; Bîrsan, Iulian; Dima, Dumitru (Universitatea "Dunărea de Jos" din Galați, 2007)
      Electric and magnetic properties of laminate carbon fiber fabric based epoxy composites are investigated through experimental techniques. Various concentrations of powder fillers were used in order to change the basic ...
    • A Study of Electromagnetic properties of Fiber Fabric Based Filled Epoxy Composites 

      Cîrciumaru, Adrian; Bîrsan, Iulian; Andrei, Gabriel; Dima, Dumitru (Universitatea "Dunărea de Jos" din Galați, 2007)
      Electric and magnetic properties of laminate carbon fiber fabric based epoxy composites are investigated through experimental techniques. Various concentrations of powder fillers were used in order to change the basic ...
    • Tribological Testing Programs for Uhmwpe Matrix Composites 

      Chiculiță, Simona; Rîpă, Minodora; Andrei, Gabriel (Universitatea ”Dunărea de Jos” din Galați, 2009)
      This paper aims to review the knowledge on materials and tribology of the ultra high molecular weight polyethylene (UHMWPE) composites. The various mechanisms proposed for the wear behaviour of UHMWPE are closely associated ...