Browsing Institutt for materialteknologi by Title
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Parametric Study of Molten Aluminium Oxidation in Relation to Dross Formation at Laboratory and Industrial Scale
(Doctoral theses at NTNU, 2022:341, Doctoral thesis, 2022)Aluminium (Al) white dross, classified as a hazardous waste, is a heterogeneous mixture of metallic Al, oxides, and non-metallic compounds (NMC) originating from the primary production route of Al. Over the past few decades, ... -
Particle deposition characteristics in the formation of Hard Grey Scale (HGS) on cold surfaces exposed to aluminium production off-gas
(Peer reviewed; Journal article, 2021)Hard Grey Scale (HGS) is a hard and strongly adhering fouling material that forms on solid surfaces impinged by the off-gas generated in the pot cells of aluminium production plants. Different theories on HGS formation ... -
Particulate emissions from electrolysis cells
(Journal article; Peer reviewed, 2011)In the dry cleaning of the exhaust gas from the aluminium cells impurities are accumulated in the finer fractions of secondary alumina from the dry scrubbers. The present work describes new methods for the determination ... -
Passivation Threshold for the Oxidation of Liquid Silicon and Thermodynamic Non-equilibrium in the Gas Phase
(Journal article; Peer reviewed, 2018)The present study focuses on a specific step of the metallurgical path of purification to provide solar-grade silicon: the removal of boron through the injection of H2O(g)-H2(g)-Ar(g) (cold gas process). A progressive ... -
Påvirkning av suspensjonsegenskaper på fabrikasjon av silisiumkarbid keramiske produkter ved slikkerstøping
(Bachelor thesis, 2020)Hovedinnholdet i denne oppgaven er påvirkningen av suspensjonsegenskaper på fabrikasjonen av silisiumkarbidprodukter ved slikkerstøping. Silisiumkarbid keramikk har høy temperaturstabilitet, høy mekanisk styrke og god ... -
Pelletering av fiberslam for biokarbon og impregnering av pellets med bioolje
(Bachelor thesis, 2019) -
Pelletized shaped Mn-based solid-sorbents for chemical looping desulfurization
(Bachelor thesis, 2020)The growing concern about climate change and related greenhouse gas emissions is leading to the promotion of research into the use of environmentally friendly renewable energy. Biomass gasification and subsequent biofuels ... -
Perfluorocarbon Formation During Rare Earth Electrolysis
(Journal article; Peer reviewed, 2018)A challenge during rare earth (RE) electrolysis is to avoid emissions of perfluorocarbon (PFC) green-house gases. The objective of this work was to study how to operate the RE electrolysis process with neither PFC formation ... -
Performance and failure analysis of full cell lithium ion battery with LiNi0.8Co0.15Al0.05O2 and silicon electrodes
(Journal article; Peer reviewed, 2019)The influence of the lithium inventory on the performance and degradation mechanism of NCA||Si cells operating at a third of the theoretical silicon capacity is analysed. The lithium inventory was increased by electrochemical ... -
The performance change of aluminum electrolysis in standard cryolite electrolyte with cathodic current density
(Master thesis, 2017)A series of experiments were performed to verify the effect of current density in current efficiency of aluminum electrolysis in molten salts. To avoid interference of other parameters, a special designed laboratory cell ... -
Performance Modeling of Bifacial PV Power Plants in a Nordic Climate
(Master thesis, 2022)Bifacial fotovoltaisk (PV) teknologi kan produsere energi fra begge sider av modulen, og kan dermed øke energitettheten ved å utnytte reflektert lys. Teknologien har også vist potensiale til å kunne redusere utjevnet ... -
Performance of a thermoelectric module based on n-type (La0.12Sr0.88)0.95TiO3-δ and p-type Ca3Co4-xO9+δ
(Journal article; Peer reviewed, 2020)Here, we present the performance of a thermoelectric (TE) module consisting of n-type (La0.12Sr0.88)0.95TiO3 and p-type Ca3Co4-xO9+δ materials. The main challenge in this investigation was operation of TE module in different ... -
Performance of activated stainless steel and nickel-based anodes in alkaline water electrolyser
(Peer reviewed; Journal article, 2023)Four different alloys including SS316, SS304, Inconel718 and Incoloy800 are activated by electro-oxidation at +1.70 V vs. RHE in 7.5 M KOH for 18 h. Their OER activity are evaluated ex-situ using linear sweep voltammetry ... -
Performance of Al-5Ti-1B master alloy after ball milling on minimizing hot tearing in Al-7Si-3Cu alloy
(Journal article; Peer reviewed, 2017)Hot tearing of Al–7Si–3Cu alloys with addition of as received Al–5Ti–1B grain refiner and ball milled grain refiner have been studied with constrained mould casting to investigate the effect of these additions on hot tear ... -
Performance of an electrochromic window based on polyaniline, prussian blue and tungsten oxide
(Journal article; Peer reviewed, 1999)In our laboratory various electrochromic windows (ECWs) have been investigated using mainly tungsten oxide (WO3), polyaniline (PANI) and prussian blue (PB) as electrochromic materials in combination with poly(2-acrylamid ... -
Performance of Regular and Modified Ceramic Foam Filters (CFFs) during Aluminium Melt Filtration in a Pilot-Scale Setup
(Peer reviewed; Journal article, 2022)Liquid metal filtration through a ceramic medium has proven to be an efficient way to secure the removal of inclusions and bifilms from molten aluminium. With an increasing focus on recycling of metal values throughout the ... -
Performance of supported catalysts for water electrolysis
(Master thesis, 2012)The most active catalyst for oxygen evolution in PEM water electrolysis is ruthenium oxide. Its major drawback as a commercial catalyst is its poor stability. In a mixed oxide with iridium, ruthenium becomes more stable. ... -
Performance Study of MXene/Carbon Nanotube Composites for Current Collector- and Binder-Free Mg-S Batteries
(Peer reviewed; Journal article, 2021)The realization of sustainable and cheap Mg-S batteries depends on significant improvements in cycling stability. Building on the immense research on cathode optimization from Li-S batteries, for the first time a beneficial ... -
Permanent Effect of a Cryogenic Spill on Fracture Properties of Carbon Steel
(Master thesis, 2015)In this work, the permanent effect of a cryogenic spill on the fracture properties of carbon steel was investigated. The experimental work consisted of two main parts. The first part was the examination of a plate of ... -
Permanent effect of a cryogenic spill on fracture properties of structural steels
(Journal article; Peer reviewed, 2015)Fracture analysis of a standard construction steel platform deck, which had been exposed to a liquid nitrogen spill, showed that the brittle fracture started at a flaw in the weld as a consequence of low-temperature ...