Institutt for materialteknologi
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De-icing coatings based on solar illumination Preparation and characterization
(Master thesis, 2022)Målet med dette prosjektet har bestått av å lage og karakterisere et overflatebelegg som kan utnytte energien i solstråler til avising av vindmøller og andre installasjoner utsatt for isakkumulering. Belegget består av tre ... -
Computational Fluid Dynamics Modeling of the Resistivity and Power Density in Reverse Electrodialysis: A Parametric Study
(Peer reviewed; Journal article, 2020)Electrodialysis (ED) and reverse electrodialysis (RED) are enabling technologies which can facilitate renewable energy generation, dynamic energy storage, and hydrogen production from low-grade waste heat. This paper ... -
CO Reactivity of Manganese Lumps Versus Briquettes
(Peer reviewed; Journal article, 2020)In this work, a comparison between CO reactivity of lumps and briquettes made of two different binder and three different raw materials is presented. Experimental results on the prereduction behavior of such materials in ... -
Memristive TiO2: Synthesis, Technologies, and Applications
(Peer reviewed; Journal article, 2020)Titanium dioxide (TiO2) is one of the most widely used materials in resistive switching applications, including random-access memory, neuromorphic computing, biohybrid interfaces, and sensors. Most of these applications ... -
Properties of activated carbon regulated by rapid cooling treatment after pyrolysis
(Peer reviewed; Journal article, 2019)Effects of rapid cooling following pyrolysis were studied relative to the properties of activated carbon using different biomass as the raw materials. Coconut shell-based activated carbon (CSAC), bamboo-based activated ... -
Modelling of the vertical deflection of ferroelectric bending tongues loaded at their free end
(Peer reviewed; Journal article, 2019)In this work, a model to describe the vertical deflection of ferroelectric bending tongues with a load at their free end is proposed. The model is based on the ferroelectric switching criterion developed by Hwang et al. ... -
Low-Temperature Plasma-Enhanced Atomic Layer Deposition of SiO2 Using Carbon Dioxide
(Peer reviewed; Journal article, 2019)In this work, we report the successful growth of high-quality SiO2 films by low-temperature plasma-enhanced atomic layer deposition using an oxidant which is compatible with moisture/oxygen sensitive materials. The SiO2 ... -
Effect of fine coke particles on rheological properties of the binder matrix of carbon anodes in aluminium production process
(Peer reviewed; Journal article, 2021)Aluminium production through the Hall-Héroult process relies on an extensive use of carbon anodes, which are originally made of coal tar pitch and fine and coarse carbon particles. During the forming process of green anodes, ... -
From Calves' Sculls to finished Bone-Ash Cupels and testing of Precious Meetals. An Investigation of the cupellation in the Mint in the Archbishop's Palace, Trondheim, in medieval times
(Peer reviewed; Journal article, 2021)The paper discusses three topics: (1) the production process of bone-ash cupels from bones in calves’ sculls to finished cupels, (2) cupellation of a silver and a gold alloy with known compositions in replica cupels and ... -
The Effect of Electrode Movements on Electrical Characteristics of a Submerged Arc Furnace
(Peer reviewed; Journal article, 2021)This work discusses the effect of electrode position on the electrical characteristics of a submerged arc furnace. A 3D model has been developed in ANSYS Maxwell using an eddy current solver that considers alternating ... -
Stress corrections after necking using a two-parameter equation for the radius of curvature
(Peer reviewed; Journal article, 2021)Uniaxial tensile tests were conducted at room temperature, 100 °C and 150 °C, for obtaining necking-corrected stress–strain curves until fracture. The necking correction is based on specimen contours estimated from images ... -
A Catalogue of Bone-Ash Cupels dating from AD 1500-1537 found in the Archbishop's Palace, Trondheim, during Archaeological Excavations in 1991-1995
(Peer reviewed; Journal article, 2021)During the archaeological excavations in the Archbishop’s Palace in Trondheim in 1991– 1995, three successive mints dating from about AD 1500–1537 were uncovered. A high number of bone-ash cupels used for assaying precious ... -
Transmission electron microscopy of ferroic materials
(Doctoral theses at NTNU;2022:109, Doctoral thesis, 2022)Materials science has the last few decades been advancing by an increasing insight in structure and local chemical composition at the sub-nanometre scale. In this context, the transmission electron microscope (TEM) has ... -
Evaluation of Calcium Aluminate Slags and Pig Irons Produced from the Smelting-Reduction of Diasporic Bauxite
(Peer reviewed; Journal article, 2021)This work evaluates the characteristics of calcium aluminate slag and pig iron samples obtained from the smelting of calcined and reduced diasporic bauxite ore. The study is conducted in the Pedersen process framework, ... -
Sulfur and nitrogen-doped graphene quantum dots/PANI nanocomposites for supercapacitors
(Peer reviewed; Journal article, 2021)Sulfur and nitrogen-doped graphene quantum dots/polyaniline (S,N-GQDP) nanocomposites are prepared by a two-step synthesis method. The heteroatoms (sulfur and nitrogen) doped graphene quantum dots (S,N-GQDs) are first ... -
Hollow-structured Cu0.4Zn0.6Fe2O4 as a novel negative electrode material for high-performance lithium-ion batteries
(Peer reviewed; Journal article, 2021)Novel hollow-structured Cu0.4Zn0.6Fe2O4 porous negative electrode material is synthesized using a one-step spray pyrolysis method, which exhibits excellent rate capability, high cycling stability, and fast charge-discharge ... -
Aluminum Recovery from White Aluminum Dross by a Mechanically Activated Phase Separation and Remelting Process
(Journal article; Peer reviewed, 2021)The aluminum recovery from white aluminum dross by a mechanical treatment and sizing followed by remelting process was investigated. The dross was subjected to a ball mill, and the obtained particles were sized in different ... -
Reactivity assessment of charcoal for use in silicon production
(Peer reviewed; Journal article, 2021)As charcoal is used in the silicon metal process, reactivity towards SiO is one of the most important properties that has strong effects on silicon recovery. The purpose of this study was to analyze anatomical properties ... -
Iron related precipitates in multicrystalline silicon by conductive atomic force microscopy
(Peer reviewed; Journal article, 2021)Multicrystalline silicon (mc-Si) is a widely used material for photovoltaic applications. The presence of metallic contaminated grain boundaries strongly affects the crystal electronic properties enhancing electron-hole ... -
Duplex Process to Produce Ferromanganese and Direct Reduced Iron by Natural Gas
(Peer reviewed; Journal article, 2021)The application of natural gas instead of solid carbon to produce ferromanganese is a way forward in sustainable development. Mass and energy balances for an integrated duplex process to produce ferromanganese and direct ...
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