Căutare 1993 -2018 după Subiect "copper"

Afișează articolele 1-4 of 4

    • Comparative Corrosion Behavior of Pure Copper and Brass in 3.5% NaCl Solution 

      Benea, Lidia; Dănăilă, Eliza (Universitatea "Dunărea de Jos" din Galați, 2016)
      Copper and brass are used in many economic sectors as electrical, construction, transport and others. From common household electrical wiring to boat propellers and from photovoltaic cells to saxophones, copper and its ...

    • Hardened Aluminium with Discontinuous Copper Threads 

      Potecașu, octavian; Potecașu, Florentina; Alexandru, Petrică (Universitatea "Dunărea de Jos" din Galați, 2006)
      The paper presents the influence of the quantity of discontinuous reinforced threads on the mechanical characteristics of some samples obtained through deformation from composite material with metallic matrix. As a raw ...

    • Heavy Metal Ions Cu (II), Co (II) and Cr (III) bufunctionally Improved with Hydroxamic and Amidoxime Groups Chelating Ion Exchangers 

      Wenkert, R.; Moisa, S.; Tofan, L.; Păduraru, C. (Universitatea "Dunărea de Jos'' din Galați, 2009)
      Two new types of bifunctional chelating ion exchangers on the basis of ethylacrylate acrylonitrile: divinylbenzene copolymers with hydroxamic acid and amidoxime groups have been evaluated for Cu(II), Co(II) and Cr(III)ions ...

    • Surface Tension of Liquid Copper in Dilute Oxygen Concentrations 

      Vlad, Maria; Vasilescu, Elisabeta (Universitatea "Dunărea de Jos" din Galați, 2006)
      The studies of this paper regarding the influence of low oxygen contents on the liquid copper surface tension had as base „sessile drop” method and the determination of the oxygen content using calculation ratio where ...