Blar i Institutt for materialteknologi på tittel
Viser treff 1310-1329 av 2498
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Leaching of Hydrogen Pre-Reduced Mn ore to Produce MnO2
(Bachelor thesis, 2023)HAlMan project team har som mål å utvikle en bærekraftig metode for produksjon av mangandioksid (MnO2). De jobber også med produksjon av manganholdige legeringer for stål og aluminium i tillegg til å utforske ekstraksjon ... -
Lead-Free Ferroelectric KNN Films for Biomedical Applications
(Doctoral theses at NTNU;2020:246, Doctoral thesis, 2020)Ferroelectric materials are utilized in a wide range of different electronic devices throughout our modern society, including all kinds of consumer electronics, ultrasound equipment, minimally invasive surgical tools and ... -
Lead-Free Ferroelectric Materials based on BiFeO3 and Bi0.5K0.5TiO3
(Doctoral thesis at NTNU;2015:180, Doctoral thesis, 2015)Blyfrie ferroelektriske materialer basert på BiFeO3 og Bi0.5K0.5TiO3 Ferroelektriske materialer finnes i dag i nesten all elektronikk, inkludert forbrukerelektronikk, som for eksempel blekk-printere, mobiltelefoner og ... -
Lead-free piezoelectric Materials based on Silver Niobate
(Master thesis, 2013)Studies done on base material AgNbO3 reveals that a large polarization, which is comparable to values reported for PZT, occurs under application of a high electric field. Density functional calculations show that solid ... -
Lead-free piezoelectric materials for medical application
(Master thesis, 2018)In this work, K0.5Na0.5NbO3, (KNN) and K0.495Na0.495Ca0.005NbO3 thin films for biomedical applications have been prepared from an aqueous precursor solutions with 2.5 or 5.0 mol% of alkali excess. Ca2+ was introduced as ... -
Lead-Free Relaxor-Like 0.75Bi(0.5)K(0.5)TiO(3)-0.25BiFeO(3) Ceramics with Large Electric Field-Induced Strain
(Journal article; Peer reviewed, 2012)Dense and phase-pure ferroelectric ceramics of 75 mol.% Bi0.5K0.5TiO3 – 25 mol.% BiFeO3 are prepared by the conventional solid state reaction method. Their crystal structure is analyzed and discussed. The dielectric and ... -
Li Morphology of In Situ-Formed Li Anodes in Solid-State Li Batteries
(Master thesis, 2023)Faststoffbatterier med litiummetallanoder har fått betydelig oppmerksomhet som følge av det økende energibehovet og den påfølgende etterspørselen etter effektive energilagringsløsninger. Disse batteriene har en overlegen ... -
Li+/H+ exchange of Li7La3Zr2O12 single and polycrystals investigated by quantitative LIBS depth profiling
(Peer reviewed; Journal article, 2022)Li7La3Zr2O12 (LLZO) garnets are highly attractive to be used as solid electrolyte in solid-state Li batteries. However, LLZO suffers from chemical interaction with air and humidity, causing Li+/H+ exchange with detrimental ... -
Life cycle assessment of an offshore grid interconnecting wind farms and customers across the North Sea
(Journal article; Peer reviewed, 2014)This study aims to contribute to an improved understanding of the environmental implications of offshore power grid and wind power development pathways. To achieve this aim, we present two assessments. First, we investigate ... -
Life Cycle Assessment of Body-in-White Produced from Recycled Aluminum
(Master thesis, 2014)The secondary production of aluminum has a large potential in terms of energy savings compared to primary production. Due to the increasing use of aluminum in products, there is a larger demand for aluminum than can be ... -
Life cycle assessment of renewable reductants in the ferromanganese alloy production: A review
(Peer reviewed; Journal article, 2021)This study examined the literature on life cycle assessment on the ferromanganese alloy production route. The environmental impacts of raw material acquisition through the production of carbon reductants to the production ... -
Life Cycle Assessment of Renewable Reductants in the Ferromanganese Alloy Production: A Review
(Peer reviewed; Journal article, 2021)This study examined the literature on life cycle assessment on the ferromanganese alloy production route. The environmental impacts of raw material acquisition through the production of carbon reductants to the production ... -
Life Cycle Based Climate Emissions of Charcoal Conditioning Routes for the Use in the Ferro-Alloy Production
(Peer reviewed; Journal article, 2022)Renewable reductants are intended to significantly reduce CO2 emissions from ferro-alloy production, e.g., by up to 80% in 2050 in Norway. However, charcoals provide inferior properties compared to fossil fuel-based ... -
Life cycle greenhouse gas emission analysis of single-family Norwegian Zero Emission pilot Buildings and concepts
(Doctoral theses at NTNU,2017:359, Doctoral thesis, 2017)Can a life cycle single-family Zero Emission Building (ZEB-OM) be achieved in Norway? What have we learned from designing and building single-family Zero Emission pilot Buildings with respect to greenhouse gas (GHG) emission ... -
Lifetime degradation in n-type Cz-Si
(Master thesis, 2012)The main object was to investigate the effect of donors, thermal donors and defects on the lifetime on n-type Czochralsky (Cz) silicon. Cz is a technique for making monocrystals by dipping a monocrystalline seed into the ... -
Ligand Field-Induced Exotic Dopant for Infrared Transparent Electrode: W in Rutile SnO2
(Journal article, 2021)Transparent conductive oxides (TCOs) exhibiting high near-infrared (NIR) transmittance are one of the key materials for highly efficient thin-film solar cells with widened spectral sensitivity. To realize excellent NIR ... -
Light-weight materials produced by accumulative roll bonding
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:114, Doctoral thesis, 2013)The work presented in this thesis is an experimental study of roll bonding and accumulative roll bonding of similar and dissimilar metal combinations with special focus on bond strength evaluation, post process heat ... -
Limitations of Ultrathin Al2O3 Coatings on LNMO Cathodes
(Peer reviewed; Journal article, 2021)This study demonstrates the application of Al2O3 coatings for the high-voltage cathode material LiNi0.5–xMn1.5+xO4−δ (LNMO) by atomic layer deposition. The ultrathin and uniform coatings (0.6–1.7 nm) were deposited on LNMO ... -
Limiting Current Density of Oxygen Reduction under Ultrathin Electrolyte Layers: From the Micrometer Range to Monolayers
(Peer reviewed; Journal article, 2021)The oxygen reduction reaction (ORR) under ultrathin electrolyte layers is a key reaction in many processes, from atmospheric corrosion to energy conversion in fuel cells. However, the ORR current under ultrathin electrolyte ... -
Linking mechanical properties to precipitate microstructure in three Al-Mg-Si(-Cu) alloys
(Peer reviewed; Journal article, 2021)The mechanical properties of age hardenable Al alloys depend strongly on the precipitate microstructure. This work has investigated the relationship between properties such as strength and ductility and the distribution ...