Browsing Institutt for materialteknologi by Title
Now showing items 1912-1931 of 2509
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Removal of Aluminium Carbide from Liquid Aluminium
(Master thesis, 2018)Aluminium carbide (Al4C3) inclusions are a common type of impurity found in aluminium alloys. Currently aluminium carbide cannot be efficiently removed due to its small particle size and wetting properties. The small carbide ... -
Removal of Boron from Silicon by Gas refining with Water and Hydrogen
(Master thesis, 2012)A high demand of silicon for solar cells has lead to a search of an alternative route to solar grade silicon. A suggested method is upgrading metallurgical grade silicon. This thesis focuses on the gas refining of silicon ... -
Removal of boron from silicon by slag treatment and by evaporation of boron from slag in hydrogen atmosphere
(Master thesis, 2012)Background and objective: Removal of boron is one of the main challenges in the purification of metallurgical grade silicon (MG-Si) for solar cells and a simple low cost method is therefore needed. Boron removal by slag ... -
Removal of C and SiC from Si and FeSi during ladle refining and solidification
(Dr.ingeniøravhandling, 0809-103X; 1997:11, Doctoral thesis, 1997) -
Removal of dissolved elementsin aluminium by filtration
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:225, Doctoral thesis, 2009)The objective of this work was to show that removal of alkali from aluminium melts by means of filtration is feasible. Therefore, a chemically active filter based on a packed bed of AlF3 grains was designed and built. ... -
Removal of Inclusions from Liquid Aluminium using Electromagnetically Modified Filtration
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:211, Doctoral thesis, 2013) -
Removal of Phosphorus from Silicon Melts by Vacuum Refining
(Master thesis, 2011)Induction vacuum refining testwork has been carried out for the removal of phosphorus from silicon melts. This work is of interest for the production of solar-grade silicon, since phosphorus is hard to remove from silicon ... -
Removal of Phosphorus in Metallurgical Silicon by Rare Earth Elements
(Journal article; Peer reviewed, 2014)Removal of phosphorus in metallurgical silicon is one of the crucial steps for the production of solar grade Si feedstock. The possibility of doping rare earth elements for phosphorus removal has in this work been studied ... -
Removal of Ti from pig iron by slag refining
(Master thesis, 2020)I dette prosjektet undersøkes muligheten for bruk av slaggraffinering for å fjerne titan fra karbonholdig råjern, som en del av ENSUREAL-prosjektet for bærekraftig produksjon av alumina. Slaggen som brukes til raffinering ... -
Removing fluoride-terminations from multilayered V2CTx MXene by gas hydrolyzation
(Peer reviewed; Journal article, 2022)Two-dimensional MXenes have shown great promise for many different applications, but in order to fully utilize their potential, control of their termination groups is essential. Here we demonstrate hydrolyzation with a ... -
Residual Stress and Ferroelastic Domain Reorientation in Declamped {001} Pb(Zr0.3Ti0.7)O3 Films
(Peer reviewed; Journal article, 2021)Ferroelectric films are often constrained by their substrates and subject to scaling effects, including suppressed dielectric permittivity. In this work, the thickness dependence of intrinsic and extrinsic contributions ... -
Resirkulere elektrisk og elektronisk avfall med flytende aluminium og oppkonsentrere/gjenvinne sjeldne jordartsmetaller. Fundementale forsøk
(Bachelor thesis, 2019)Elektriske og elektroniske apparater har forandret hvordan vi lever. På grunn av en rask teknologisk utvikling og økende økonomisk handelekraft hos forbrukere, har levetiden til elektronikk og elektroniske apparater blitt ... -
Resirkulering av aluminiumsavfall fra restavfall
(Master thesis, 2019) -
Resirkulerte komponenter av HDPE - Hvordan mekaniske egenskaper påvirkes av UV
(Bachelor thesis, 2019)Som en del av MegaMould-prosjektet ønsker Plasto AS å benytte resirkulert HDPE ved produksjon av oppdrettsmerder. Visjonen er at på sikt skal virgin-materialet byttes ut med resirkulerte materialer i produksjonen av gangbaner ... -
Restaustenitt-bildning och hydrogenfällor i martensittiska rostfria stål
(Master thesis, 2009) -
Retrieval of three-dimensional spatial information from fast in situ two-dimensional synchrotron radiography of solidification microstructure evolution
(Journal article; Peer reviewed, 2014)In situ synchrotron X-ray radiography of columnar dendritic growth in Al–15 wt.% Cu–9 wt.% Si–0.015 wt.% Sr alloy has been carried out with the temporal and spatial resolutions of 100 ms and 0.65 μm, respectively. ... -
Return-mapping algorithm for rate-independent crystal yield surface
(Master thesis, 2020)Hovedmålet med dette arbeidet var å utvikle en stabil og hurtig numerisk algoritme for krystallplastisitet med vilkårlige slip systemer og krystallelastisitet. Ved å bruke en regularisert flyteflate blir metodene for ... -
Reusable crucible materials and coatings for photovoltaic silicon applications
(Doctoral theses at NTNU;2021:419, Doctoral thesis, 2021)Currently, more than 90% of commercial solar cells are made from crystalline silicon. The crystalline silicon materials are classified into two types: monocrystalline and multi-crystalline silicon. Multi-crystalline silicon ... -
Revealing abnormal {11-21} twins in commercial purity Ti subjected to split Hopkinson pressure bar
(Journal article, 2019)The deformation behavior of Ti alloys during conventional deformation, such as rolling and compression,have been extensively investigated, while it is less understood during high strain rate deformation. In thepresent work, ... -
Revealing mechanisms of activated carbon capacity fade in lithium-ion capacitors
(Peer reviewed; Journal article, 2023)The capacity fade mechanism of activated carbon (AC) electrode in Li-ion electrolyte was studied via electrochemical impedance spectroscopy (EIS) and post-mortem electrode characterizations at different stages of electrochemical ...