Blar i Institutt for materialteknologi på tittel
Viser treff 1815-1834 av 2540
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Preliminary Investigations on the Manufacture of Al-AZ31 Bimetallic Composites by the Screw Extrusion Process
(Master thesis, 2013)The development of bimetals, or metallic composites, has in recent years been given increased attention. The motivation behind the development of bimetals is that, by combining two dissimilar metals it is possible to obtain ... -
Preparation and Characterization of Spherical Nickel Silicide Powder by Inductively Coupled Plasma Spheroidization for Additive Manufacturing
(Chapter, 2022)Metal alloy powder with spherical-shaped morphology, high flowability, and packing density is the main requirements for metal-based additive manufacturing (AM). Among metal alloys, nickel silicide is considered as a potential ... -
Preparation and surface modifications on hollow silica nano spheres - Nano- insulation
(Master thesis, 2018)Hollow silica nano spheres (HSNS) were synthesised with the use of polystyrene templates. Based on the polystyrene templates, tetraethyl orthosilicate (TEOS) was hydrolysed and attached on the surface, in either an acidic ... -
Preparation of (La0.8Sr0.2)0.995CoO3-based Inks for Ink-Jet Printing of Thin Films in Solid Oxide Fuel Cells (SOFCs)
(Master thesis, 2017)Lanthanum Strontium Cobalt oxide (LSC) is a mixed ionic-electronic conductor (MIEC) ceramic suited for use as cathode material in Solid Oxide Fuel Cells (SOFCs). Extensive research is conducted on producing the cathode in ... -
Preparation of diboride coatings by electrophoretic deposition in nanoparticle-containing molten inorganic salts
(Peer reviewed; Journal article, 2022)Electrophoretic deposition is a type of significant method for preparing coatings and films, which has been widely investigated in aqueous and organic suspensions. However, electrophoretic deposition in molten inorganic ... -
Preparation of electrocatalysts by reduction of precursors with sodium citrate
(Journal article; Peer reviewed, 2014)In this work synthesis of Pt/C catalysts by reduction of H2PtCl6 with sodium citrate has been investigated. The strong pH-dependence of citrate as a reducing and stabilizing agent has been explored, and an optimum pH range ... -
Preparation of Inks for Inkjet Printing of Thin Films in Solid Oxide Fuel Cells
(Master thesis, 2016)Solid oxide fuel cell technology can achieve high efficiency when producing electric power. To produce these fuel cells with a high quality and a low cost, inkjet printing can be utilized. This technique is highly dependent ... -
Preparation of ZrB<inf>2</inf>coatings by electrophoretic deposition in NaCl-KCl-AlCl<inf>3</inf>molten salts
(Peer reviewed; Journal article, 2022)Fabrication of transition metal diboride coatings via electrophoretic deposition in molten salts has been recently proposed, however, the influence of the process parameters on the coating has not yet been studied extensively. ... -
Prereduction Behavior of Manganese Ores With Solid Carbon and in CO/CO<inf>2</inf> Gas Atmosphere
(Peer reviewed; Journal article, 2022)The prereduction reactions in the submerged arc furnace (SAF) are highly decisive of the total carbon, and energy consumption of the ferromanganese process. Therefore, understanding the dependency of prereduction behavior ... -
Prereduction of Comilog- and Nchwaning ore
(Doctoral theses at NTNU;2020:415, Doctoral thesis, 2020)Manganese ferroalloys are mainly used as an alloying element in steel production and are normally produced in submerged arc furnaces. Raw materials such as manganese ore, metallurgical coke and fluxes (and quartz for SiMn) ... -
Prereduction of Nchwaning Ore in CO/CO2/H2 Gas Mixtures
(Peer reviewed; Journal article, 2021)Prereduction of Nchwaning manganese ore was investigated by isothermal reduction between 600 and 800 °C to optimize the conditions for industrial pretreatment of manganese ores. Experiments were conducted in CO/CO2 gas ... -
Press Form Hardening of Aluminium - The influence of hot forming, quench interruption and direct artificial aging on the mechanical properties of AA6082
(Master thesis, 2018)The automotive industry is in need of new lightweight solutions to meet stricter regulations regarding reduction in greenhouse gas emissions. Replacing steel components with age-hardenable high-strength aluminium alloys ... -
Press Form Hardening of Aluminium Alloys 7021 and 6082. A Feasibility Study.
(Master thesis, 2016)Aluminium alloys 6082.25 and 7021.50 were evaluated and compared as potential base materials for processing by press form hardening. Both extruded profiles and rolled sheets were assessed, however the rolled 7021 material ... -
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 ...