Blar i Institutt for materialteknologi på tittel
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The Behavior of Additives LiF, MgF2 and KF on Current Efficiency in Aluminium Electrolysis
(Journal article; Peer reviewed, 2019)The effects of LiF, MgF2 and KF additions to the electrolyte on current efficiency were investigated during aluminium electrolysis using base NaF−AlF3−Al2O3 system with a cryolite ratio of 2.5, 4% Al2O3 and 5% CaF2 at 980°C ... -
The carbon-electrolyte interface at high cathodic voltages
(Journal article, 2015)Different carbon materials (graphitic and carbon black) were investigated with respect to their electrochemical stability at high voltages in organic electrolytes typically used for Li-ion batteries. The materials were ... -
THE CURRENT EFFICIENCY FOR ALUMINIUM DEPOSITION FROM CRYOLITEALUMINAMELTS AT HIGH CURRENT DENSITY
(Master thesis, 2010)A laboratory study was performed to investigate first and foremost the effects of cathodic current density on the current efficiency with respect to aluminium electrolysis in cryolite-aluminamelts. Effects of NaF/AlF3 ratio ... -
The deformation and work hardening behaviour of a SPD processed Al-5Cu alloy
(Journal article; Peer reviewed, 2017)An Al-5wt.%Cu alloy supersaturated with Cu in solid solution was subjected to equal channel angular pressing (ECAP). The microstructuralevolution was systematically investigated by backscattered electron (BSE)imaging, ... -
The deformation and work hardening behaviour of a SPD processed Al-5Cu alloy
(Journal article; Peer reviewed, 2017)An Al-5 wt.% Cu alloy supersaturated with Cu in solid solution was subjected to equal channel angular pressing (ECAP). The microstructural evolution was systematically investigated by backscattered electron (BSE) imaging, ... -
The double-edge effect of second-phase particles on the recrystallization behaviour and associated mechanical properties of metallic materials
(Journal article; Peer reviewed, 2018)Most industrial alloys contain a matrix phase and dispersed second-phase particles. Several thermomechanical processing (TMP) steps are usually needed to produce a final product, during which recrystallization and its ... -
The durability of the thermally decomposed IrO2-Ta2O5 coated titanium anode in a sulfate solution
(Journal article; Peer reviewed, 2019)In this work, series of IrO2-Ta2O5 anodes were investigated. The catalytic activity towards oxygen evolution reaction (OER) of these anodes are determined by calcination temperature, coating loading (coating thickness), ... -
The effect of additives on the properties of lightweight aggregates produced from clay
(Journal article; Peer reviewed, 2014)In an attempt to improve the properties, lightweight aggregates were produced from clay with the addition of Na2CO3, SiO2, Fe2O3, and Fe in quantities between 2 and 10 wt% and examined with respect to strength, density and ... -
The Effect of Alloying Elements on the Ductility of Al-Mg-Si Alloys
(Master thesis, 2014)Experiments were conducted to attempt to understand the effect of different alloying elements on the ductility of Al-Mg-Si alloys. Four alloys with different concentrations of Si, Mg, Fe, Mn and Cu were selected for ... -
The effect of alloying elements on the ductility of Al-Mg-Si alloys
(Journal article; Peer reviewed, 2017)Experiments were conducted to document the combined effect of different alloying elements on the microstructure and associated stress-strain behavior of extruded Al-Mg-Si alloys, with a special emphasis on the ductility ... -
The effect of bird droppings on the corrosion of structural materials used in offshore applications
(Master thesis, 2022)Den nåværende trenden i olje- og gassindustrien er at flere aktører ønsker å bygge automatiserte plattformer som er enten normalt ubemannet, eller ubemannet. Dette gir økte krav for design, som må kunne yte for lange ... -
The Effect of Boron on Microparticle Population in Spheroidal Graphite Irons
(Master thesis, 2022)En økt kompleksitet i legeringen av stål kan øke mengden uønskede legeringselementer i støpejern når resirkulert stål blir brukt som råmateriale i støpejernsproduksjon. Økt fokus på resirkulering og resirkulerbarheten av ... -
The effect of carbon and boron carbide additions in pressure assisted sintered silicon carbide
(Master thesis, 2017)Silicon carbide is a highly covalent ceramic, so additives like carbon and boron must be present in order to obtain a dense material during sintering. The focus of this project is to investigate how the amount of carbon ... -
The effect of carbon in MnO2 composite electrodes
(Master thesis, 2018)Supercapacitors are promising electrochemical storage devices that might aid in several key technologies such as solar cells, cars, computers and more. In fact, supercapacitors are already used in cars (regenerative braking). ... -
The Effect of Cation Disorder on Ferroelectric Properties of SrxBa1xNb2O6 Tungsten Bronzes
(Journal article; Peer reviewed, 2019)The versatile crystal structure of tetragonal tungsten bronzes (A12A24C4B10O30) can accommodate complex stoichiometries including cations in different valence states and vacant cation sites. Here, we report on the effect ... -
The effect of compaction and thermal treatment in the recovery of coated aluminium scrap through FTIR off-gas analysis and remelting in molten heel
(Master thesis, 2022)Økt fokus på global oppvarming har medført at alle teknologiske sektorer ser etter løsninger på problemer tilknyttet energibruk og utslipp. Aluminiumsektoren har de siste tiårene opplevd en økt primærproduksjon noe som ... -
The Effect of Cooling Rate and Pre-Deformation on Corrosion Behaviour of Extruded AlMgSi(Cu, Zn)-Alloys
(Master thesis, 2020)Aluminiumslegeringer i 6xxx-serien med høyt styrke-til-vekt-forhold kan, på grunn av vektreduksjon, bidra til å redusere utslipp av drivhusgasser i transportindustrien. Resirkulering av disse legeringene kan ytterligere ... -
The effect of cooling rate from solution heat treatment on ductility in Al-Mg-Si crash box alloys
(Master thesis, 2022)Effekten på duktilitet av kjølehastighet fra innherding av Al-Mg-Si-legeringer er undersøkt. Tre forskjellige legeringer ble avkjølt med fire forskjellige kjølemetoder. Disse var kaldt vann, kokt vann, luft med konveksjon ... -
The Effect of Deformation by Torsion and Subsequent Heat Treatment on the Microstructure of AA6082
(Master thesis, 2018)An AA6082-aluminum alloy is used in the production of suspension components for cars at Raufoss Technology AS. The components are manufactured through a process of several forming and heating steps. Through torsion testing ... -
The Effect of Deformation on Intergranular Corrosion of AlMgSi Alloys
(Master thesis, 2017)The heat treatable AlMgSi alloys are regarded as medium strength materials with excellent corrosion properties. To achieve enhanced mechanical properties with the aim to expand the application areas, Cu may be added since ...