Browsing Institutt for materialteknologi by Issue Date
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How to probe structure, kinetics and dynamics at complex interfaces in situ and operando by optical spectroscopy
(Chapter, 2017)Techniques using light in a large spectral range are well suited to study interfaces. Photon-based techniques have a special strength when it comes to application in situ and operando. This article introduces some of the ... -
Effect of cryorolling on microstructure and mechanical properties of a peak-aged AA6082 extrusion
(Journal article; Peer reviewed, 2017)Peak-aged AA6082 flat extrusions were cryorolled at liquid nitrogen temperature to three different thickness reductions, the reductions were 21%, 42% and 85%, respectively. Microstructure and plastic deformation behaviors ... -
Comparison of cathodic delamination of poly(n-alkyl methacrylates) on iron
(Journal article; Peer reviewed, 2017)Cathodic delamination is measured on iron surfaces covered with different poly(n-alky methacrylates), where the alkyl is an n-CnH2n + 1 (n = 1, 4, 18) group. The polymers are prepared by free radical polymerization in ... -
Road-map for gas in the Norwegian metallurgical industry: greater value creation and reduced emissions
(Research report, 2017)In order to increase the use of gas in metal production, we will need to develop new – and to further develop existing – gas-based technologies, which will need to be adopted on an industrial scale. In order to provide a ... -
Corrosion Protection of Machined Steel Surfaces
(Master thesis, 2017)Protection of smooth, machined surfaces is challenging as the surfaces do not have the roughness required to provide proper adhesion between the substrate and the coating. This gives poor corrosion resistance and lower ... -
Strain-Path Changes in Brass (Cu-20Zn)
(Master thesis, 2017)Metals are often exposed to multi-path loading in the forming process. Plastic deformed in more than one direction can have significant effects on microstructural evolution and mechanical behaviour. These mechanisms and ... -
Electrodeposition of indium and tin from molten chloride electrolytes
(Journal article; Peer reviewed, 2017)Recycling of electronic waste to recover the metal value is of prime importance, especially for metals with limited resources. An electrochemical approach should be an interesting option to develop sustainable recycling ... -
Nanostructured magnesium silicide Mg2Si and its electrochemical performance as an anode of a lithium ion battery
(Journal article, 2017)Nano-crystalline Mg2Si (Mg67Si33) and its Si-rich eutectic (Mg47Si53) composition were synthesized by hydrogen desorption-recombination process, casting and rapid solidification techniques. The synthesis of Mg2Si meets ... -
Reduction of MnO and SiO2 from Assmang and Comilog based Slags
(Master thesis, 2017)Silicomanganese(SiMn) and ferromanganese (FeMn) represent essential ingredients for the steel producing industries due to enhancing effects on steel quality. While extensive efforts have been made in investigating the ... -
Kinetics of hydrogen absorption and desorption in titanium
(Journal article; Peer reviewed, 2017)Titanium is reactive toward hydrogen forming metal hydride which has a potential application in energy storage and conversion. Titanium hydride has been widely studied for hydrogen storage, thermal storage, and battery ... -
Conductivity Contrast and Tunneling Charge Transport in the Vortexlike Ferroelectric Domain Patterns of Multiferroic Hexagonal YMnO3
(Journal article, 2017)We deduce the intrinsic conductivity properties of the ferroelectric domain walls around the topologically protected domain vortex cores in multiferroic YMnO3. This is achieved by performing a careful equivalent-circuit ... -
Functionalized TiO2 nanoparticles by single-step hydrothermal synthesis: the role of the silane coupling agents
(Journal article; Peer reviewed, 2017)A simple, robust and versatile hydrothermal synthesis route to in situ functionalized TiO2 nanoparticles was developed using titanium(IV) isopropoxide as Ti-precursor and selected silane coupling agents (3-aminopropyltri ... -
The role of grain boundary scattering in reducing the thermal conductivity of polycrystalline XNiSn (X=Hf, Zr, Ti) half-Heusler alloys
(Journal article; Peer reviewed, 2017)Thermoelectric application of half-Heusler compounds suffers from their fairly high thermal conductivities. Insight into how effective various scattering mechanisms are in reducing the thermal conductivity of fabricated ... -
The effect of carbon and boron carbide additions in pressure assisted sintered silicon carbide
(Master thesis, 2017)Silicon carbide is a highly covalent ceramic, so additives like carbon and boron must be present in order to obtain a dense material during sintering. The focus of this project is to investigate how the amount of carbon ... -
Effect of Coke Properties on the Bubble Formation at the Anodes During Aluminium Electrolysis in Laboratory Scale
(Journal article, 2017)The anodic reaction of aluminium electrolysis cells leads to the formation of CO2 bubbles, which partly screen the anode surface and leads to an increase in the cell voltage. An advantage of these bubbles is that the ... -
Effect of soft Bi particles on grain refinement during severe plastic deformation
(Journal article; Peer reviewed, 2017)Two aluminum alloys, Al–8Zn and Al–6Bi–8Zn were subjected to equal channel angular pressing (ECAP) up to 5 passes at room temperature. The microstructural evolution and the grain refinement behavior of these alloys were ... -
134Ba diffusion in polycrystalline BaMO3 (M = Ti, Zr, Ce)
(Journal article; Peer reviewed, 2017)Cation diffusion in functional oxide materials is of fundamental interest, particularly in relation to interdiffusion of cations in thin film heterostructures and chemical stability of materials in high temperature ... -
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 ... -
Development of Composite Cathodes for Solid Oxide Fuel Cells
(Master thesis, 2017)Solid oxide fuel cells have the potential to become an important device for clean energy production. Today, these cells run at high temperatures, which causes degradation in the cell components and a short life-time of the ... -
Stability and cation diffusion in BaZrO3-based proton conducting solid state electrolytes
(Doctoral theses at NTNU;2017:288, Doctoral thesis, 2017)Fuel cells stands as an attractive technology to efficiently convert chemical energy (fuels) to electricity. Protonic ceramic fuel cells have gained considerable interest in recent years due to higher fuel utilization at ...