Browsing NTNU Open by Author "Hauback, Bjørn"

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    • In operando neutron diffraction study of LaNdMgNi9H13 as a metal hydride battery anode 

      Nazer, N.S.; Denys, Roman Volodymyrovich; Yartys, Volodymyr; Hu, Weikang; Latroche, M.; Cuevas, F; Hauback, Bjørn; Henry, P.F.; Arnberg, Lars (Journal article; Peer reviewed, 2017-03-01)
      La2MgNi9-related alloys are superior metal hydride battery anodes as compared to the commercial AB5 alloys. Nd-substituted La2-yNdyMgNi9 intermetallics are of particular interest because of increased diffusion rate of ...

    • Morphology effects in MgH2 anode for lithium ion batteries 

      El-Kharbachi, Abdelouahab; Andersen, Hanne Flåten; Sørby, Magnus Helgerud; Vullum, Per Erik; Mæhlen, Jan Petter; Hauback, Bjørn (Journal article, 2017)
      In order to acquire reproducible electrodes relevant for Li ion batteries new MgH2 electrodes are successfully obtained from homogenous slurries in N-Methyl-2-Pyrrolidone “NMP” solvent. The electrodes are aimed to elucidate ...

    • Revisiting the Crystal Structure of Rhombohedral Lead Metaniobate 

      Olsen, Gerhard H.; Sørby, Magnus Helgerud; Hauback, Bjørn; Selbach, Sverre Magnus; Grande, Tor (Journal article; Peer reviewed, 2014)
      Lead metaniobate (PbNb2O6) can exist both as a stable rhombohedral and a metastable orthorhombic tungsten-bronze-type polymorph. While the orthorhombic is a well-known ferroelectric material, the rhombohedral polymorph ...

    • The impact of advanced glazing on colour perception 

      Arbab, Shabnam; Matusiak, Barbara Szybinska; Martinsen, Fredrik Aleksander; Hauback, Bjørn (Journal article; Peer reviewed, 2017)
      The aim of this study was to expand the understanding of modern glazing materials’ effects on the perception of colours. To this end, the appearance of eight standard CIE test colour samples were ...

    • The role of grain boundary scattering in reducing the thermal conductivity of polycrystalline XNiSn (X=Hf, Zr, Ti) half-Heusler alloys 

      Schrade, Matthias; Berland, Kristian; Eliassen, Simen Nut Hansen; Guzik, Matylda Natalia; Echevarria-Bonet, Cristina; Sørby, Magnus Helgerud; Jenus, Petra; Hauback, Bjørn; Tofan, Raluca; Gunnæs, Anette Eleonora; Persson, Clas; Løvvik, Ole Martin; Finstad, Terje (Journal article; Peer reviewed, 2017)
      Thermoelectric application of half-Heusler compounds suffers from their fairly high thermal conductivities. Insight into how effective various scattering mechanisms are in reducing the thermal conductivity of fabricated ...

    • Understanding Capacity Fading of MgH2 Conversion-Type Anodes via Structural Morphology Changes and Electrochemical Impedance 

      El-Kharbachi, Abdelouahab; Hu, Yang; Sørby, Magnus Helgerud; Vullum, Per Erik; Mæhlen, Jan Petter; Fjellvåg, Helmer; Hauback, Bjørn (Journal article; Peer reviewed, 2018)
      Previous studies have demonstrated that MgH2 is a promising conversion-type anode toward Li with high capacity (2037 mAh/g) and low discharge/charge overpotential hysteresis. A major challenge is the capacity loss after a ...