Browsing Institutt for materialteknologi by Title
Now showing items 956-975 of 2563
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Finite temperature ab initio simulations of the lattice thermal conductivity of XNiBi, X=(Sc, Y, La), based half-Heuslers
(Master thesis, 2017)Over the past few years, the half-Heusler materials have attracted attention for their potential within thermoelectric applications. This is mainly due to the flexibility of half-Heusler crystal structure. The half-Heuslers ... -
Finite-size effects of Kirkwood–Buff integrals from molecular simulations
(Journal article; Peer reviewed, 2017)The modelling of thermodynamic properties of liquids from local density fluctuations is relevant to many chemical and biological processes. The Kirkwood–Buff (KB) theory connects the microscopic structure of isotropic ... -
First principles study of epitaxial strain induced phenomena and chemical expansion in perovskite oxides
(Doctoral theses at NTNU;2018:285, Doctoral thesis, 2018)The many exotic properties found in complex oxides have great potential for device applications. Complex oxides within the perovskite structure are particularly attractive, as they display a large diversity of chemical ... -
First-Principles Calculations of Oxygen Vacancy Formation in Epitaxially Strained La1-xCaxMnO3
(Master thesis, 2016)Using epitaxial strain as a degree of freedom is a promising way to tailor the properties in thin films of transition metal oxides. Since the ground state of such materials tend to have many competing low-energy states ... -
First-principles study of tensile and shear strength of Fe-Al and α-AlFeSi intermetallic compound interfaces
(Peer reviewed; Journal article, 2021)First-principles virtual tensile and shear strength calculations have been performed on the Fe2Al5// Fe4Al13 and -AlFeSi// Fe4Al13 interfaces. The Fast Inertial Relaxation Engine (FIRE) algorithm is used for optimizing ... -
First-principles study of the effect of (111) strain on octahedral rotations and structural phases of LaAlO3
(Journal article; Peer reviewed, 2017)The structural and electronic response of LaAlO3 to biaxial strain in the (111) plane is studied by density functional theory (DFT) and compared with strain in the (001) plane and isostatic strain. For (111) strain, in-plane ... -
First-principles study of topologically protected vortices and ferroelectric domain walls in hexagonal YGaO3
(Peer reviewed; Journal article, 2020)Ferroelectric behavior on the meso- and macroscopic scale depends on the formation and dynamics of domains and controlling the domain patterns is imperative to device performance. While density functional theory (DFT) ... -
First-year university students' perception of chemical bonding and bond energy
(Peer reviewed; Journal article, 2021) -
Flame-made Lithium Transition Metal Orthosilicates
(Journal article; Peer reviewed, 2016)Li2MSiO4 (M = Fe, Mn, Co) compounds have since their discovery gained increased attention as alternative, inexpensive and inherently safe positive electrodes for Li-ion batteries. To meet the required performance for an ... -
Flexible Transparent Electrodes Formed from Template-Patterned Thin-Film Silver
(Peer reviewed; Journal article, 2023)Template-patterned, flexible transparent electrodes (TEs) formed from an ultrathin silver film on top of a commercial optical adhesive – Norland Optical Adhesive 63 (NOA63) – are reported. NOA63 is shown to be an effective ... -
Flexible, biocompatible lead-free piezoelectric thin films for biomedical applications
(Master thesis, 2019)I dette masterprosjektet ble fleksible, faserene, piezoelektriske kalium-natrium niobat (KNN) tynnfilmer produsert ved å legge en KNN tynnfilm på et termisk stabilt substrat og deretter overføre filmen til en fleksibel ... -
Flow and Heat Transfer in a Radially Spreading Liquid Metal Jet Related to Casting of Ferroalloys
(Dr. ingeniøravhandling, 0809-103X; 2000:83, Doctoral thesis, 2000)In the past more and more advanced and fine-tuned processes for steel production have resulted in increased demands for new and more costeffective ferroalloys used as constituents in the processes. Casting techniques and ... -
Flue Gas Recirculation for the Silicon Process
(Doctoral theses at NTNU;2023:135, Doctoral thesis, 2023)Metallurgical-grade silicon is a critical material for modern society. It is used as an alloying agent in aluminium alloys, feedstock for silicones, photovoltaics and electronics. Silicon is produced by carbothermal reduction ... -
Fluidity of Aluminium Foundry Alloys
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:185, Doctoral thesis, 2005)The fluidity of an alloy plays a key role for the foundry and transport industries as it affects the quality and soundness of the cast products. Particularly, fluidity influences the reject rates, hence casting costs and ... -
Fluorescent Nanocomposites: Hollow Silica Microspheres with Embedded Carbon Dots
(Journal article; Peer reviewed, 2021)Intrinsically fluorescent carbon dots may form the basis for a safer and more accurate sensor technology for digital counting in bioanalytical assays. This work presents a simple and inexpensive synthesis method for producing ... -
Fluoroethylene and H2O as additives in electrolytes based on lithium bis(fluorosulfonyl)imide with silicon anodes
(Master thesis, 2022)Effekten av fluoretylenkarbonat (FEC) og 1000 ppm H2O som tilsetningsstoffer i en elektrolytt basert på litium bis(fluorsulfonyl)imid (LiFSI) på silisiumanoder, ble studert med hensyn på syklingsevne, Coulombisk effektivitet, ... -
Flux-smelting behavior and aluminothermic reduction of a pre-reduced Mn ore
(Master thesis, 2023)Denne masteroppgaven presenterer en eksperimentell studie som undersøker smelte- og aluminotermisk smelte-reduksjonsprosesser av en pre-redusert Mn-malm ved bruk av kalk (CaO) og metallisk aluminium. Målet med studien er ... -
Forekomst av Staphylococcus aureus på kunstgressbaner
(Bachelor thesis, 2020)Den første kunstgressbanen innen idrett på verdensbasis ble bygget på 1960-tallet, og siden har kunstgress utviklet seg gjennom fire generasjoner. Tredje generasjons (3G) kunstgress består av kunstgressfibre, sand og ... -
Formation and characterization of β-and α-Silicon Carbide produced during Silicon/Ferrosilicon process
(Doctoral theses at NTNU;2020:252, Doctoral thesis, 2020)Silicon carbide (SiC) is one of the main intermediate compounds generated during primary silicon (Si) production in submerged arc furnaces. Carbon materials, either biomass-based (charcoal and wood chips) or based on fossil ... -
The Formation and Disintegration of Rafts from Different Aluminas and Fines
(Peer reviewed; Journal article, 2022)Raft formation is a frequently encountered problem during alumina feeding in the Hall-Héroult-process and will delay alumina from being dissolved into the melt. The mechanisms for the formation and disintegration of rafts ...