• Recycling of Aluminium from Mixed Household Waste 

      Eggen, Sigvart; Sandaunet, Kurt; Kolbeinsen, Leiv; Kvithyld, Anne (Chapter, 2020)
      Aluminium is used in packaging due to its density, strength and preservative capabilities. This paper outlines a methodology to evaluate the recyclability of aluminium waste, where parameters of scrap type, pre-treatment ...
    • Recycling of Aluminium from Mixed Household Waste 

      Eggen, Sigvart; Sandaunet, Kurt; Kolbeinsen, Leiv; Kvithyld, Anne (Chapter, 2020)
      Aluminium is used in packaging due to its density, strength and preservative capabilities. This paper outlines a methodology to evaluate the recyclability of aluminium waste, where parameters of scrap type, pre-treatment ...
    • SILICON PURIFICATION THROUGH MAGNESIUM ADDITION AND ACID LEACHING 

      Safarian, Jafar; Tranell, Gabriella (Chapter, 2016)
      Silicon is the dominant material in photovoltaic devices and with regard to the PV market growth, the demand for solar grade silicon feedstock is expected to be high in the future. Although solar silicon is currently ...
    • Slag-metal interactions in the FeMn tapping process: Interfacial properties and wetting 

      Bublik, Sergey; Bao, Sarina; Tangstad, Merete; Einarsrud, Kristian Etienne (Chapter, 2019)
      FeMn-alloys are produced by transforming ore and carbon materials into FeMn and slag at high temperatures in a furnace. Entrainment of FeMn in slag during tapping reduces the yield. Entrainment and subsequent separation ...
    • Smelting-reduction of bauxite for sustainable alumina production 

      Safarian, Jafar; Kolbeinsen, Leiv (Chapter, 2016)
      Bauxite ore is the main raw material for aluminum production, it is converted into alumina (Al2O3) to obtain a proper charge material for aluminum production in Hall-Heroult process. Bayer process is the main commercial ...
    • Sour Gas Corrosion—Corrosion of Steels and Other Metallic Materials in Aqueous Environments Containing H2S 

      Genchev, Georgi; Erbe, Andreas (Chapter, 2013)
      The corrosion of metals, mainly steels, in contact with H2S-containing solutions is a general problem especially in gas and oil production. The corrosion products are hydrogen and iron sulfides. Penetration of the hydrogen ...
    • Spark Plasma Sintering of Graphene Nanoplatelets Reinforced Aluminium 6061 Alloy Composites 

      Khan, Mahmood; Ud-Din, Rafi; Wadood, Abdul; Akhtar, Shahid; Husain, Syed Wilayat; Aune, Ragnhild Elizabeth (Chapter, 2020)
      Over the years, high performance lightweight aluminium matrix composites have, mainly due to their excellent mechanical properties, found wide applications in automobile and aerospace applications. In the present study, ...
    • Statistical Analysis of Structure Loss in Czochralski Silicon Growth 

      Sortland, Øyvind Sunde; Jomâa, Moez; M'hamdi, Mohammed; Øvrelid, Eivind Johannes; Di Sabatino Lundberg, Marisa (Chapter, 2019)
      In Czochralski monocrystalline silicon growth, structure loss (SL) is the loss of the mono-crystalline structure. It represents a significant loss of productivity. In this work, this phenomenon is investigated by statistical ...
    • STEM-EDS of Inception Sites of Vented Trees in a HV XLPE Subsea Cable 

      Hårberg, Sofie Brandtzæg; Nylund, Inger-Emma; Einarsrud, Mari-Ann; Vullum, Per Erik; Lesaint, Cedric Michel; Hvidsten, Sverre (Chapter, 2023)
      High voltage XLPE cable cores have been subjected to wet ageing following the recommendations in CIGRE TB 722. The electrical ageing was performed at 500 Hz and 10 kV/mm. Vented water trees were detected initiating and ...
    • Structural Dynamics Study of Hydration Shells on n-Ge(100) in Aqueous Solution with Electrochemical Control 

      Niu, Fang; Erbe, Andreas (Chapter, 2016)
      Structural changes of the hydration shell of surfaces in aqueous solution are studied using attenuated total reflection infrared spectroscopy, under different electrode potentials and consequently different states of the ...
    • Sustainability in alumina production from bauxite 

      Safarian, Jafar; Kolbeinsen, Leiv (Chapter, 2016)
      Alumina (Al2O3) is the main material used for the aluminum production, which is originated from bauxite ore through hydrothermal processes. Although bauxite conversion to alumina can be done through a few competitive ...
    • Time-dependent water uptake in a polymer model coating visualized by FTIR microscopy using a focal plane array detector 

      Ebbinghaus, Petra; Rabe, Martin; Erbe, Andreas (Chapter, 2016)
      Progress of the delamination front during cathodic delamination was imaged by FTIR microscopy. Delamination experiments were carried out using H2O and D2O-based electrolytes. Inhomogeneous propagation of the delamination ...
    • Use of H2 in Mn-Ferroalloy Production 

      Tangstad, Merete; Schanche, Trygve; De Preez, Faan (Chapter, 2023)
      The use of H2 as a reductant in the iron and steel industry is an obvious choice towards carbon neutrality. For pyrometallurgical processes like Mn and Si, H2 cannot be the only solution, as the stability of the oxides of ...
    • WETTABILITY OF MOLTEN Fe-Si-B ALLOY ON GRAPHITE, Al2O3, AND h-BN SUBSTRATES 

      Jiao, Jianmeng; Grorud, Bettina; Safarian, Jafar; Tangstad, Merete (Chapter, 2019)
      Fe-26.38Si-9.35B alloy (numbers in mass %) is of interest as a phase change material (PCM) because it exhibits high thermal conductivity, moderate melting point, high latent heat, and low cost. This study offers valuable ...
    • XPS Examination of the Oxide-Metal Interface of an Aluminum-Magnesium Alloy Containing Beryllium 

      Smith, Nicholas; Kvithyld, Anne; Tranell, Gabriella (Chapter, 2018)
      The addition of beryllium to high magnesium aluminum alloys has long been known to cause a significant decrease in the rate of alloy oxidation. A clear understanding of the fundamental mechanism behind this effect is still ...