Institutt for materialteknologi
Recent Submissions
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Operando studies of Mn oxide based electrocatalysts for the oxygen evolution reaction
(Peer reviewed; Journal article, 2023)Inspired by photosystem II (PS II), Mn oxide based electrocatalysts have been repeatedly investigated as catalysts for the electrochemical oxygen evolution reaction (OER), the anodic reaction in water electrolysis. However, ... -
Dynamic Electrochemical Impedance Spectroscopy for the Evaluation of Localised Corrosion on Aluminium Alloys
(Peer reviewed; Journal article, 2023)Dynamic electrochemical impedance spectroscopy (dEIS), an extension of conventional EIS, was used for rapid measurements of initiation of localised corrosion on 3005 aluminium alloys with different Mn (1.08–1.39 wt. %) and ... -
Coupled Ion Transport in Concentrated PEO-LiTFSI Polymer Electrolytes
(Peer reviewed; Journal article, 2023)Understanding how microscopic mechanisms govern macroscopic transport properties is important for development of improved electrolytes for Li-ion batteries. The archetypal polymer electrolyte PEO–LiTFSI has been investigated ... -
Optimum scavenger concentrations for sonochemical nanoparticle synthesis
(Journal article; Peer reviewed, 2023)Maintaining nanoparticle properties when scaling up a chemical synthesis is challenging due to the complex interplay between reducing agents and precursors. A sonochemical synthesis route does not require the addition of ... -
Introducing field evaporation energy loss spectroscopy
(Peer reviewed; Journal article, 2023)Retrieving information on the chemical and bonding states of atoms in a material in three-dimensions is challenging even for the most advanced imaging techniques. Here, we demonstrate that this information is accessible ... -
PARAMETRIC OPTIMISATION OF FRICTION STIR WELDING ON ALUMINIUM ALLOY (EN AW-1100) PLATES
(Peer reviewed; Journal article, 2023)Friction stir welding is a solid-state welding process used extensively for aluminium alloys. EN AW-1100 alloy is mostly used for its exceptional corrosion resistance, high ductility, high thermal and electrical conductivities, ... -
An Overview of Currently Applied Ferrochrome Production Processes and Their Waste Management Practices
(Peer reviewed; Journal article, 2023)Ferrochrome (FeCr) is the main source of virgin chromium (Cr) units used in modern-day chromium (Cr) containing alloys. The vast majority of produced Cr is used during the production of stainless steel, which owes its ... -
A Comparative Study of Different CFD-codes for Fluidized Beds
(Master thesis, 2023)Fluidiserte senger er viktige prosesser med mange bruksområder i ulike industrier. Ett av bruksområdene er som en tørrskrubber for å behandle avgass fra aluminiumsproduksjon. Økt etterspørsel etter aluminium i verden betyr ... -
Computational Modelling of Mass Transfer in Molten Salt Electrolyte for Na-Zn Liquid Metal Batteries
(Master thesis, 2023)Flytende metall-batterier (eller FMB-er) er en fremvoksende batteriteknologi som blir stadig mer relevant for storskala energilagring på strømnettet. Denne lagringen kan bidra til å redusere variasjonene i strømforsyningen ... -
The Effect of Process Conditions on Sulfuric Acid Leaching of Manganese Sludge
(Peer reviewed; Journal article, 2023)Manganese sludge, an industrial waste product in the ferroalloy industry, contains various components and holds significant importance for sustainable development through its valorization. This study focuses on characterizing ... -
An Invitation on Characterization of H<inf>2</inf>-Reduced Bauxite Residue and Recovering Iron through Wet Magnetic Separation Processes
(Peer reviewed; Journal article, 2023)Recovering iron from the bauxite residue (BR) is one of the long-standing challenges in the mining industry. However, there is a substantial lack of information in the literature regarding sample properties and iron ... -
The role of isopropanol-containing solvent on the silicon powders properties
(Master thesis, 2023)Denne masteroppgaven tar sikte på å undersøke innflytelsen av ulike løsningsmidler på ulike egenskaper ved silisium, inkludert overflategrupper, partikkelstørrelse, spesifikk overflateareal og morfologi. Silisium blir mye ... -
Influence of filter surface roughness on the pressure drop of ceramic foam filters
(Peer reviewed; Journal article, 2023)The pressure drop of a ceramic foam filter is an important characteristic indicating the resistance to fluid flow through the filter. Filtration experiments have shown that filtration efficiency increases with decreasing ... -
Post Processing Approach to Model Microsilica Formation
(Peer reviewed; Journal article, 2023)In this work an OpenFOAM-based framework to simulate the evolution of microsilica, which is an important byproduct in the silicon/ferrosilicon industries, is proposed. The framework decouples the combustion reaction of CO ... -
Synthesis of Mg2Si and its use for Silane production
(Doctoral theses at NTNU;2023:291, Doctoral thesis, 2023)The increase in the use of renewable energy sources is crucial to address global warming and its impact on our planet. Solar energy is predicted to experience the most rapid growth of the different sources of renewable ... -
An Investigation on Reduction of Calcium Added Bauxite Residue Pellets by Hydrogen and Iron Recovery through Physical Separation Methods
(Peer reviewed; Journal article, 2023)This study investigates the properties of H2-reduced calcium-added bauxite residue, self-hardened pellets, and the feasibility of iron recovery through electrostatic and magnetic separation methods. The oxide pellets are ... -
Effect of Raw Materials on Temperature Development during Prereduction of Comilog and Nchwaning Manganese Ores
(Peer reviewed; Journal article, 2023)The effect of raw materials on the temperature development and prereduction behavior of Comilog and Nchwaning manganese ores (3.33–4.00 mm or 11.20–15.00 mm) were investigated in a CO-CO2 atmosphere. Experiments were ... -
Graphite crucible interaction with Fe–Si–B phase change material in pilot-scale experiments
(Peer reviewed; Journal article, 2023)Fe–26Si–9B alloy is a promising high temperature phase change material (HTPCM), due to its high heat of fusion, small volumetric change, abundance, and low cost. Additionally, graphite has been identified as a promising ... -
A Pragmatic Model for Bath Temperature Evolution During Alumina Feeding
(Peer reviewed; Journal article, 2023)In this paper, we extend the pragmatic model for alumina feeding, presented in Johansen et al. Light metals 2022, to treat the associated evolution of bath temperature. The underlying idea of the framework is to reduce its ... -
On the Viability of Lithium Bis(fluorosulfonyl)imide as Electrolyte Salt for Use in Lithium-Ion Capacitors
(Peer reviewed; Journal article, 2023)
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