Browsing Institutt for materialteknologi by Title
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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 ... -
Texturing of Lead-free Ferroelectric Ceramics
(Master thesis, 2013)The lead-free ferroelectric system 0.75Bi0.5K0.5TiO3-0.25BiFeO3 has been investigated with respect to crystallographic texturing. Recent studies have shown that the system have promising electromechanical properties and ... -
Texturing of lead-free piezoelectric ceramics
(Master thesis, 2012)A procedure for texturing of lead-free piezoelectric ceramics based on sodium potassium niobate (KNN) was investigated with respect to texturing procedure and choice of materials.Material compositions that were considered ... -
The Aluminium Stock in Non-Residential Buildings in Trondheim: A Bottom-Up Study Based on Building Type-Cohorts
(Master thesis, 2014)Aluminium scrap is a valuable commodity in a monetary sense, but also in the sense that its utilization is an important step in reducing greenhouse gas emissions. It is both beneficial and necessary that an increasing share ... -
The anode process on carbon in chloride-oxide melts
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:120, Doctoral thesis, 2008) -
The Applicability of Aluminium Alloys as Reinforcement Material in Concrete Constructions
(Master thesis, 2018)This thesis is a part of the DARE2C research project. The research projects primary objective is to develop a more environmentally-friendly type of concrete where more than 55% of the cement is replaced with less CO2(g) ... -
The Behavior of Additives LiF, MgF2 and KF on Current Efficiency in Aluminium Electrolysis
(Journal article; Peer reviewed, 2019)The effects of LiF, MgF2 and KF additions to the electrolyte on current efficiency were investigated during aluminium electrolysis using base NaF−AlF3−Al2O3 system with a cryolite ratio of 2.5, 4% Al2O3 and 5% CaF2 at 980°C ... -
The carbon-electrolyte interface at high cathodic voltages
(Journal article, 2015)Different carbon materials (graphitic and carbon black) were investigated with respect to their electrochemical stability at high voltages in organic electrolytes typically used for Li-ion batteries. The materials were ... -
THE CURRENT EFFICIENCY FOR ALUMINIUM DEPOSITION FROM CRYOLITEALUMINAMELTS AT HIGH CURRENT DENSITY
(Master thesis, 2010)A laboratory study was performed to investigate first and foremost the effects of cathodic current density on the current efficiency with respect to aluminium electrolysis in cryolite-aluminamelts. Effects of NaF/AlF3 ratio ... -
The deformation and work hardening behaviour of a SPD processed Al-5Cu alloy
(Journal article; Peer reviewed, 2017)An Al-5wt.%Cu alloy supersaturated with Cu in solid solution was subjected to equal channel angular pressing (ECAP). The microstructuralevolution was systematically investigated by backscattered electron (BSE)imaging, ...