Blar i Institutt for materialteknologi på tittel
Viser treff 1798-1817 av 2504
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Pressure Control of Nonferroelastic Ferroelectric Domains in ErMnO<inf>3</inf>
(Journal article; Peer reviewed, 2023)Mechanical pressure controls the structural, electric, and magnetic order in solid-state systems, allowing tailoring of their physical properties. A well-established example is ferroelastic ferroelectrics, where the coupling ... -
Pressure drop in charge mixture in silicon production
(Master thesis, 2020)Lavere energiforbruk, en mer miljøvennlig produksjon og høyere silisium utbytte er viktige mål i silisium industrien. For å oppnå disse målene kreves det at prosessene i ovnen er stabile. Flere operasjonelle problemer har ... -
Pretreatment of manganese ores in CO/CO2/H2 atmospheres
(Doctoral theses at NTNU;2022:401, Doctoral thesis, 2022)During industrial production of manganese ferroalloys, the manganese raw materials are prereduced in the low temperature zone of the submerged arc furnace (SAF). The endothermic Boudouard reaction (CO2 + C = 2CO) consumes ... -
Pretreatment with a β-cyclodextrin - corrosion inhibitor complex stops an initiated corrosion process on zinc
(Journal article; Peer reviewed, 2018)Metal pretreatment is typically the first step in a reliable corrosion protection system. This work explores the incorporation of complexes between the cyclic oligosaccharide β-cyclodextrin (β-CD) and the molecular organic ... -
Primary Production of Aluminium and Its Alloys in Molten Salts with Oxygen Evolving Anodes: Overview
(Peer reviewed; Journal article, 2022)Due to environmental and economic concerns, carbon-free aluminium production has been an ultimate target for aluminium industries. For the last few decades, a considerable amount of research has been conducted to find a ... -
Probing heat generation during tensile plastic deformation of a bulk metallic glass at cryogenic temperature
(Journal article; Peer reviewed, 2018)Despite significant research efforts, the deformation and failure mechanisms of metallic glasses remain not well understood. In the absence of periodic structure, these materials typically deform in highly localized, thin ... -
Probing the electronic properties of p-doped gallium arsenide nanowires
(Master thesis, 2014)Probing the electronic properties of nm-scaled object is a challenge but is required for doping optimalization and using the nm-scaled objects as building blocks in future devices. In the present study, electron beam induced ... -
Process- and Alloy Development of Recyclable Aluminium Alloys: Recovery and Recrystallization Behavior of a Selection of AlMn-model Alloys
(Master thesis, 2011)A study of the effect of various amounts of manganese in solid solution on the recovery and recrystallization behavior of an AlMn-alloy, for different annealing conditions after different degrees of deformation (cold ... -
Processing and Characterisation of Diatoms for Light Harvesting Materials in Solar Cells
(Master thesis, 2011)By applying a texture to the front surface of solar cells, less light may be reflected and the incoming light may be given a longer path length inside the solar cell causing a better light absorbance for the solar cell. ... -
Processing and indexing of electron backscatter patterns using open-source software
(Peer reviewed; Journal article, 2020)A new method to increase the signal-to-noise ratio S/N of electron backscatter patterns (EBSPs) based upon principal component analysis (PCA) is presented. The PCA denoising method is applied to ten scans of EBSPs from the ... -
Processing and Properties of Direct Reduced Iron Pellets Containing Material for Control of Steel Structure
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:42, Doctoral thesis, 2010)The thesis work was carried out at the Department of Materials Science and Engineering in Norwegian University of Science and Technology (NTNU) and in SINTEF. It is a part of a SINTEF /NTNU project called Dispersoids in ... -
Processing of high performing composite cathodes for protonic ceramic fuel cells by exsolution
(Journal article; Peer reviewed, 2019)La0.5Ba0.5CoO3-δ-BaZrO3 (LB-BZ)-based composite materials were prepared by a modified Pechini sol-gel method combined with exsolution. Two different LB-BZ composites were prepared through two alternative thermal treatments ... -
Processing of thin film ceramic membranes for oxygen separation
(Journal article; Peer reviewed, 2012)Processing of dense and thin ceramic membrane layers for high temperature selective oxygen separation is addressed in this study. Mixed oxygen-ionic and electronic conducting perovskite oxide system based on La0.2Sr0.8Fe ... -
Product formation during discharge: a combined modelling and experimental study for Li–O2 cathodes in LiTFSI/DMSO and LiTFSI/TEGDME electrolytes
(Peer reviewed; Journal article, 2021)Li–air or Li–O2 batteries are a promising energy storage technology due to the potentially high energy density. However, significant challenges related to reversible charge/discharge of these cells need to be solved. The ... -
Product formation during discharge: a combined modelling and experimental study for Li–O2 cathodes in LiTFSI/DMSO and LiTFSI/TEGDME electrolytes
(Peer reviewed; Journal article, 2021)Li–air or Li–O2 batteries are a promising energy storage technology due to the potentially high energy density. However, significant challenges related to reversible charge/discharge of these cells need to be solved. The ... -
Production and Characterization of a Zr-based Bulk Metallic Glass: The possibility of a future biomaterial
(Master thesis, 2013)Materials put under strain while exposed to the harsh environment of the human body, must not only be chemically stable, but also have good tribocorrosion properties, i.e. a combination of good corrosion and wear properties.In ... -
Production and Characterization of Advanced Bulk Metallic Glasses for Hip Implant Applications.
(Master thesis, 2011)AbstractThe aim of the present project was to investigate the possibilities of using a Zr55Cu30Ni5Al10 Bulk Metallic Glass (BMG) alloy as articulating surface in an artificial hip joint.In order for a material to be used ... -
Production of Iron Alloy by Direct Electrolytic Reduction Using Suspension Electrolysis in an Alkaline Electrolyte
(Peer reviewed; Journal article, 2022)Iron alloys were produced by suspension electrolysis in a 50 wt% NaOH–H2O electrolyte at 383 K, and Fe–Cr and Fe–Ni alloys were obtained using a suspension of Fe2O3+Cr2O3 and Fe2O3+Ni(OH)2 particles, respectively. Highly ... -
Production of Lead-free Electroceramics: K0.5Na0.5NbO3 substituted with Li & Ta
(Master thesis, 2011)K0:485Na0:485Li0:03Nb0:8Ta0:2O3 powder has been prepared by spray pyrolysis ofaqueous solutions of K/Na/Li nitrates mixed with water soluble Nb and Ta precursors.The as-prepared ceramic powder was calcined at 600 °C to ... -
Production of Silicomanganese from Comilog Ore - Reduction Behavior
(Master thesis, 2016)The reduction behavior of silicomanganese (SiMn) charges based on Comilog ore was investigated. The charges were heated up to to different temperatures by using a thermogravimetric graphite tube furnace. The weight loss ...