Browsing Institutt for materialteknologi by Title
Now showing items 2265-2284 of 2573
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Ta-ITO Coated Titanium Bipolar Plates for Proton Exchange Membrane Water Electrolyzers
(Peer reviewed; Journal article, 2022)A novel bi-layer coating composed of a tantalum base layer with an Indium Tin Oxide (ITO) top layer was applied to titanium substrates. Samples were polarized ex situ in a parameter study, where the pH, potential and ... -
Tailoring microstructure and texture of annealed Al-Mn alloy through the variation of homogenization and prior cold deformation strain
(Peer reviewed; Journal article, 2020)The grain structures and crystallographic textures desired for various applications of aluminium alloys are usually modified by recrystallization during annealing. In this study, the interactions between recrystallization ... -
Tailoring preferential orientation in BaTiO3-based thin films from aqueous chemical solution deposition
(Journal article, 2021)Ferroelectric properties of thin films can be enhanced by crystallographic texture. In this work, we report on how heat treatment of films can be designed to tailor the degree of preferential orientation in BaTiO3-based ... -
Tailoring properties of nanostructured MoO3−x thin films by aqueous solution deposition
(Journal article, 2018)Molybdenum oxide films are required for a large range of optical, electronic and catalytic applications, and optimal film characteristics are similarly broad. Furthermore, the layered crystal structure of MoO3 is suited ... -
Tailoring the electrical conductivity and hardening in BiFeO3 ceramics
(Peer reviewed; Journal article, 2020)In this report, the influence of cobalt doping and annealing atmosphere on the electrical conductivity and polarization switching of BiFeO3 (BFO) ceramics was studied. Electrical conductivity as well as hardening behavior ... -
Tailoring the oxide surface composition of stainless steel for improved OER performance in alkaline water electrolysis
(Peer reviewed; Journal article, 2022)There is a strong desire to replace bulk nickel electrodes for oxygen evolution reaction (OER) with a cheaper and more active steel material in alkaline water electrolyser (AWE). However, implementing an activation procedure ... -
Tapping Gas from the Silicon Submerged Arc Furnace: An Industrial Measurement Campaign
(Journal article; Peer reviewed, 2022)Producing high-silicon alloys in submerged arc furnaces (SAF) involves the generation of an intermediate process gas, consisting of silicon monoxide (SiO) and carbon monoxide (CO). Combustion of process gas from the taphole ... -
Tapping of FeSi Furnaces
(Master thesis, 2018)Ferrosilicon is usually produced in an electric arc furnace. During the tapping of the furnace solidification of FeSi and slag in the runner and ladle are a major issue because it lowers the ferrosilicon yield and causes ... -
Temperature and Velocity Effects on Mass and Momentum Transport in Spacer-Filled Channels for Reverse Electrodialysis: A Numerical Study
(Journal article; Peer reviewed, 2018)Concentration polarization is one of the main challenges of membrane-based processes such as power generation by reverse electrodialysis. Spacers in the compartments can enhance mass transfer by reducing concentration ... -
Temperature effects on performance of graphite anodes in carbonate based electrolytes for lithium ion batteries
(Journal article; Peer reviewed, 2018)The performance of graphite electrodes in various electrolytes containing ethylene carbonate (EC) and mixtures of EC and propylene carbonate (PC) was studied at temperatures between 0 and 40 °C. Included in the study was ... -
Temperature-dependent carrier lifetime measurements on silicon wafers and bricks
(Master thesis, 2023)Dette arbeidet presenterer en ny metode for å måle temperaturavhengig ladninsbærer levetid i krystallinske silisium wafere, bricks og ingots. Det eksperimentelle oppsettet består av en BCT-300 ladningsbærer levetidsmåler ... -
Temporal stability of a-Si:H and a-SiNx:H on crystalline silicon wafers
(Journal article; Peer reviewed, 2017)The temporal stability of single layer thin films of hydrogenated amorphous silicon (a-Si:H) and silicon nitride (a-SiNx:H) passivated crystalline silicon wafers have been investigated over 18 months. The thin films were ... -
Tensile bond strength of cold roll bonded aluminium sheets
(Journal article; Peer reviewed, 2013)Sheets of AA1200 and AA3103 aluminium alloys were roll bonded at room temperature and the bond strength across the interface was tested in tension mode. Aluminium rods were glued to the two faces of a coin sample machined ... -
Tensile properties of Zr70Ni16Cu6Al8 BMG at room and cryogenic temperatures
(Journal article; Peer reviewed, 2018)The mechanical behaviour in tension of a hypoeutectic Zr70Ni16Cu6Al8 Bulk Metallic Glass (BMG) was studied at room (295 K) and cryogenic temperatures (150 K and 77 K) using various strain rates between 10−4 and 10−1 s−1. ... -
Ternary mixed nickel cobalt iron oxide nanorods as a high-performance asymmetric supercapacitor electrode
(Peer reviewed; Journal article, 2019)By utilizing a facile microwave process, ternary nickel cobalt iron oxide (NiCoFeO4) nanorods were synthesized. A comprehensive investigation of morphological, structural and surface chemistry of the nanorods has been ... -
Ternary NiCoFe nanosheets for oxygen evolution in anion exchange membrane water electrolysis
(Peer reviewed; Journal article, 2022)Tuning nickel-based catalyst activity and understanding electrolyte and ionomer interaction for oxygen evolution reaction (OER) is crucial to improve anion exchange membrane (AEM) water electrolyzers. Herein, an investigation ... -
Testing og modifisering av en kjemisk reaktorprototype fra laboratorium til pilot
(Bachelor thesis, 2021)Sammendraget er konfidensielt. -
Texture and Microstructure Evolution during Extrusion of AlMgSi-Alloys
(Master thesis, 2016)The main objective of this thesis is to contribute to a better understanding of the microstructure and texture evolution during extrusion of AlMgSi alloys. The textures and microstructures in AA6082 were analysed after ... -
Texture evolution of an Al-8Zn alloy during ECAP and post-ECAP isothermal annealing
(Journal article; Peer reviewed, 2019)In this work, the texture evolution of an Al-8 wt% Zn alloy during equal channel angular pressing (ECAP) and post-ECAP isothermal annealing was systematically investigated by electron backscatter diffraction (EBSD). Special ... -
Texturing of lead free piezoelectric ceramics
(Master thesis, 2013)Texturing of the lead-free system Ba0.92Ca0.08TiO3 (BCT) was investigated focusing on density, degree of texture and piezoelectric response. BCT templates were prepared in a two-step molten salt synthesis to achieve the ...