Institutt for materialteknologi
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Major depressive disorder seven years after the conflict in northern Uganda: burden, risk factors and impact on outcomes (The Wayo-Nero Study)
(Journal article; Peer reviewed, 2015)Background Major depressive disorder (MDD) is a major public health burden in conflict areas. However, it is not known for how long and by how much the observed high rates of MDD seen in conflict settings persist into the ... -
DSC analyses of static and dynamic precipitation of an Al-Mg-Si-Cu aluminum alloy
(Journal article; Peer reviewed, 2015)In the present investigation, both static and dynamic precipitations of an Al–Mg–Si–Cu aluminum alloy after solid-solution treatment (SST) were comparatively analyzed using differential scanning calorimetry (DSC). Dynamic ... -
Cathode Wear in Aluminium Electrolysis Cells
(Doctoral theses at NTNU;2019:317, Doctoral thesis, 2019)The increasing global demand for aluminium has resulted in growing production of aluminium metal through increased production capacity and improvement of the electrolysis technology. This has caused a development towards ... -
Modelling microstructure evolution during casting, homogenization and ageing heat treatment of Al-Mg-Si-Cu-Fe-Mn alloys
(Journal article; Peer reviewed, 2018)Understanding microstructural evolution occupies one of the central positions in the discipline of materials science and engineering. In this review we summarize the recent research activities on modelling microstructure ... -
Atomic structures of precipitates in Al–Mg–Si alloys with small additions of other elements
(Journal article; Peer reviewed, 2018)In Al–Mg–Si alloys, additions of only a few weight percent of Mg and Si enable formation of hardening precipitates during heat treatment. The precipitation is complex and is influenced by chemical compositions and ... -
Avaliação experimental e simulação computacional da dissolução de partículas de cloreto de sódio em salmoura em escoamento
(Journal article; Peer reviewed, 2014)A mathematical model to predict the dissolution of salt particles suspended in a brine flow is provided. The model consists of a system of three partial differential equations (PDE) based on mass conservation of salt ... -
Energy generation and storage by salinity gradient power: A model-based assessment
(Journal article; Peer reviewed, 2019)Three energy storage systems based on mixing and desalination of solutions with different salt concentrations are presented, namely, reverse electrodialysis, pressure retarded osmosis and capacitive Donnan potential, coupled ... -
Facile synthesis of nanosized sodium magnesium hydride, NaMgH3
(Journal article; Peer reviewed, 2013)The ternary magnesium hydride NaMgH3 has been synthesised via reactive milling techniques. The method employed neither a reactive H2 atmosphere nor high pressure sintering or other post-treatment processes. The formation ... -
Depolarized SnO2-based gas anodes for electrowinning of silver in molten chlorides
(Journal article; Peer reviewed, 2013)SnO2-based porous anodes were prepared and the behavior of gas bubbles on the porous anodes with different original coarse grain size, immersed in ethanol to simulate molten chlorides, was primarily investigated. SnO2-based ... -
Compositional Engineering of a La1-xBaxCoO3-δ-(1-a) BaZr0.9Y0.1O2.95 (a = 0.6, 0.7, 0.8 and x = 0.5, 0.6, 0.7) Nanocomposite Cathodes for Protonic Ceramic Fuel Cells
(Journal article; Peer reviewed, 2019)Compositionally engineered a La1-xBaxCoO3-δ-(1-a) BaZr0.9Y0.1O2.95 (a = 0.6, 0.7, 0.8 and x = 0.5, 0.6, 0.7) (LBZ) nanocomposite cathodes were prepared by oxidation driven in situ exsolution of a single-phase material ... -
Composition and morphology tuning during hydrothermal synthesis of SrxBa1−xNb2O6 tetragonal tungsten bronzes studied by in situ X-ray diffraction
(Journal article; Peer reviewed, 2019)Current interest in 1D ferroelectric materials calls for cheap, controllable, reproducible and environmentally friendly synthesis routes. Hydrothermal synthesis stands out as one of the most promising routes, but a thorough ... -
Recycling of the Rare Earth Oxides from Spent Rechargeable Batteries Using Waste Metallurgical Slags
(Journal article; Peer reviewed, 2013)A high temperature process for recycling spent nickel-metal hydride rechargeable batteries has been recently developed at SINTEF/NTNU. The spent battery modules were first frozen with liquid nitrogen for the de-activation ... -
Karakterisering av mikrostruktur og mekaniske egenskaper til selektiv lasersmeltet AlSi10Mg og AlSi7MgCuHf, direkte på en AlSi7MgCu støpelegering
(Master thesis, 2019)Selektiv lasersmelting (SLS) er en av flere metoder under additiv tilvirkning. Produktet bygges ved at en laser smelter pulverpartikler sammen lag for lag. Til forskjell fra de konvensjonelle metodene som støping, ekstrudering ... -
Effect of Surface Treatment and Preheating Temperature on Compound Casting of Aluminium Alloy A356 onto 6060 Inserts
(Master thesis, 2019)For bilindustrien er det viktig å studere ulike metoder for å redusere kjøretøyvekt, da dette reduserer bensinforbruk, noe som vil ha både økonomiske og miljømessige fordeler. Hybridstøpning er å støpe et flytende materiale ... -
Alkaline oxide interface modifiers for silicon fiber production
(Journal article; Peer reviewed, 2013)We demonstrate the ability to pull small diameter silicon-core fibers with low oxygen content by using interface modifiers between the silica cladding and the semiconductor. Alkali earths scavenge oxygen and form a ... -
Coatings with Antifouling Properties due to Graphene Oxide Addition
(Master thesis, 2019)Begroing er en utfordring for mange deler av industri, inkludert skipsfart, vannrensing og fiskeoppdrett. Bunnstoff har blitt brukt for å takle problemet siden det 17. århundre. Økologiske skader som følge av bruk av ... -
Interaction of water with quartz sand surfaces studied by in situ temperature dependent diffuse reflectance IR spectroscopy
(Master thesis, 2019)Kvartssand med høy renhet brukes som materiale for digler i produksjonen av monokrystallinske silisiumstøpeblokker. Støpeblokkene blir videre produsert til solceller i Czochralski (CZ)-prosessen. Hydroksyl- og vanninnholdet ... -
Anode gas measurement during aluminium electrolysis
(Master thesis, 2019)Gassanalyse ble gjennomført under aluminiumselektrolyse hvor en FTIR-gassmåler ble brukt. Laboppsettet ble lagd på en slik måte at det skulle minimere tilbakereaksjonen og Boudouard-reaksjonen. Hovedfokuset var å studere ... -
Transport and catalytic properties of hexagonal manganese oxides
(Master thesis, 2019)Tette keramiske membranar med blanda ionisk og elektronisk leiingsevne kan vera eit meir energieffektivt og miljøvenleg alternativ til kryogen destillasjon, for å imøtekome den auka et- terspurnaden av rein oksygengass. ... -
Electrochemical processes in the AlCl3-urea ionic liquid analogue
(Master thesis, 2019)Hvert år produseres det nesten 70 millioner tonn aluminium på verdensbasis som blir anvendt i ulike industrier, blant annet transport-, elektronikk- og emballasjeindustrien. Materialet er høyt etterspurt grunnet sine ...
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