Browsing Institutt for materialteknologi by Title
Now showing items 1428-1447 of 2508
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Method for studying high temperature aqueous electrochemical systems: Methanol and glycerol oxidation
(Journal article; Peer reviewed, 2016)A method for high purity aqueous electrochemical experiments at temperatures above the normal boiling point of water and at temperatures up to 140 °C is described. A three-electrode cell in a self-pressurized glass autoclave ... -
Methodology to analyse small silicon samples by glow discharge mass spectroscopy using thin wafer mask
(Peer reviewed; Journal article, 2015)Glow discharge mass spectrometry (GDMS) is widely used for trace element analysis of bulk solid samples. Thegeometry of the GD source limits the minimum size of the sample, which for the instrument used in this ... -
Methods for K-impregnation of carbon materials and their effect on the CO2 reactivity
(Master thesis, 2022)En veldig stor andel av det norske CO2utslippet kommer som en følge av bruk av fossile karbon materialer i metall produksjon. I den norske mangan (Mn) produksjonen er koks mest brukt til å redusere manganmalmen. Denne ... -
Methods of Oxidation Inhibition for Al-Mg Alloys
(Doctoral theses at NTNU;2019:29, Doctoral thesis, 2019)The oxidation of aluminum will occur at any notable oxygen partial pressure. This oxidation can be favorable as it forms a protective layer on the metal surface which prevents further oxidation. However, the addition of a ... -
Micro cracks in wind turbine bearings Investigation of microstructural characteristics and nanomechanical properties in White Etching Cracks (WEC)
(Master thesis, 2022)De siste tiårene har det vært en økning i verdens produksjonskapasitet fra vind-energi for å nå klima- og energimål. For fortsette å øke produksjonskapasiteten av fornybar energi er det viktig å holde drifts og ... -
A micro fuel cell for abiotical catalysis of glucose
(Peer reviewed; Journal article, 2020)A miniaturised abiotical fuel cell designed for operation inside a physiologically relevant mixed fuel environment of dissolved di-oxygen (DO) and glucose, have been realized by embedding the glucose sensitive anode below ... -
Micro-fluidic flow cells for studies of electrochemical reactions
(Master thesis, 2014)Micro fluidic flow cells (MFFCs) are a relatively new technique for characterization of electrochemical reactions. This work includes both techniques for manufacturing the cells and electrochemical characterization of ... -
Microbial Growth on Indoor Artificial Turf and Assessment of Suitable Disinfection Methods
(Bachelor thesis, 2021)Bakterievekst i kunstgress er et problem, spesielt på grunn av at nyere generasjoner av kunstgress (4G) inneholder organisk fyll istedenfor gummigranulat. Det organiske fyllet er mer miljøvennlig, men inneholder ikke ... -
Microbiological Assessment of Disinfection on Indoor Artificial Turf
(Bachelor thesis, 2023)I arbeidet med å bytte ut organisk fyllmateriale til organisk fyllmateriale i kunstgress grunnet dets miljøfare, oppstår det en ny utfordring, muligheten for økt bakterievekst. Dette kan føre til vekst av indikatororganismer ... -
Microfluidic and high temperaturetechniques for aqueous electrochemistry
(Doctoral thesis at NTNU;2016:196, Doctoral thesis, 2016)Liquid organic fuels are highly desired energy carriers as they have a high energy density, simple production, and can benefit directly from existing infrastructure. However, the electrochemical conversion efficiency is ... -
Microfluidic flow cells for studies of electrochemical reactions
(Master thesis, 2012)In this project the main goal was to establish a routine for making a microfluidic flow cell (MFFC) using soft lithography methods, and test the flow cell with different electrolytes, sulphuric acid and a ruthenium red-ox ... -
Microfluidic flow cells for the analysis of electrocatalytic reactions
(Doctoral theses at NTNU;2017:331, Doctoral thesis, 2017)English summary Microfluidic flow cells for the analysis of electrocatalytic reactions The electro-oxidation of small organic molecules such as methanol could play an important role in the transition from fossil fuels ... -
Microscopic Link between Electron Localization and Chemical Expansion in AMnO3 and ATiO3 Perovskites (A = Ca, Sr, Ba)
(Peer reviewed; Journal article, 2020)The microscopic origin of chemical expansion in perovskite oxides, due to formation of oxygen vacancies accompanied by formal reduction of a 3d transition metal, is studied by first-principles calculations. We compare the ... -
Microscopic Study of Carbon Surfaces Interacting with High Carbon Ferromanganese Slag
(Journal article; Peer reviewed, 2015)The interaction of carbon materials with molten slags occurs in many pyro-metallurgical processes. In the production of high carbon ferromanganese in submerged arc furnace, the carbothermic reduction of MnO-containing ... -
Microstructural Analysis of Effective Electrode Conductivity in Molten Salt, Na-ZnCl2 Batteries
(Peer reviewed; Journal article, 2022)Intermediate temperature molten salt batteries are a promising alternative for grid-scale energy storage with several advantages over existing solutions. The cathode of some of these batteries is composed of a porous matrix ... -
Microstructural and compositional optimization of La0.5Ba0.5CoO3−δ—BaZr1−zYzO3−δ (z=0, 0.05 and 0.1) nanocomposite cathodes for protonic ceramic fuel cells
(Journal article; Peer reviewed, 2019)Cathodes are one of the key components of protonic ceramic fuel cells (PCFCs) requiring further development to enhance the performance of PCFCs. This encompasses the optimization of material compositions and microstructures, ... -
Microstructural design of CaMnO3 and its thermoelectric proprieties.
(Master thesis, 2015)Calcium manganate (CMO) is an n-type semiconductor with promising thermoelectric proprieties. Solid state synthesis was employed to synthesise the desired material in two phases: i) reduced rock-salt phase of CaO-MnO (ss) ... -
Microstructural evolution during isothermal annealing of a cold-rolled Al-Mn-Fe-Si alloy with different microchemistry states
(Journal article, 2014)In this paper, investigations of the softening behaviour of a supersaturated Al-Mn-Fe-Si alloy during annealing after cold rolling have been carried out. Two different homogenization conditions were considered, of which ... -
Microstructural evolution during isothermal heat treatment of super duplex stainless steels as a function of tungsten content
(Master thesis, 2017)Duplex stainless steels(DSS) and super duplex stainless steels(SDSS) can be described as austenitic-ferritic stainless steels of 22%Cr and 25%Cr content, respectively. The DSS and SDSS are characterised by their combination ... -
Microstructural evolution of 3000 series multi-port extruded tubes during brazing cycles
(Master thesis, 2017)The AA3xxx series alloys are known for the good corrosion resistance and widely used as heat exchanging material. However, 3xxx series alloys shows intergranular corrosion problem after brazing. In this project, a systematic ...