Blar i Institutt for materialteknologi på tittel
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A TEM Study of Boron-implanted Cubic Silicon Carbide, for Solar Cell Applications
(Master thesis, 2016)Recent research suggests that high doses of boron implantation can introduce an intermediate electron energy band in cubic silicon carbide (3C-SiC). This makes it a viable material for a highly efficient intermediate band ... -
A TEM Study of Weakly Overaged Precipitates in AA 6082
(Master thesis, 2016)New models for modeling the material properties for aluminium alloys that can take into consideration the geometry of the needle shaped precipitates, that can be found in 6xxx alloys are being developed. The background for ... -
A thermodynamic assessment of the Nd-C system
(Journal article; Peer reviewed, 2015)The Nd–C binary system has been assessed based on the experimental investigation, thermodynamic calculations and the literature survey. The intermediate compounds Nd2C3 and βNdC2 (high-temperature form of NdC2 phase) were ... -
A Thermodynamic Study on the Effect of Solute on the Nucleation Driving Force, Solid?Liquid Interfacial Energy, and Grain Refinement of Al Alloys
(Journal article, 2018)Chemical composition is known to have significant effects on the grain refinement behavior of inoculated Al alloys during solidification. In this study, the influences of solute contents on the thermodynamic nucleation ... -
A van der Waals Density Functional Study of MoO3 and Its Oxygen Vacancies
(Journal article; Peer reviewed, 2016)The electronic structure of layered molybdenum trioxide MoO3 is highly sensitive to changes in oxygen stoichiometry as Mo6+ has an empty 4d shell. Applications of MoO3 are responsive to small changes in vacancy concentration, ... -
A XANES Study of Sulfur Speciation and Reactivity in Cokes for Anodes Used in Aluminum Production
(Journal article; Peer reviewed, 2018)Availability of anode raw materials in the growing aluminum industry results in a wider range of petroleum cokes being used to produce carbon anodes. The boundary between anode grade cokes and what previously was considered ... -
Ab-initio study of atomic structure and mechanical behaviour of Al / Fe intermetallic interfaces
(Journal article; Peer reviewed, 2020)First-principles virtual tensile and shear test calculations have been performed to Al(0 0 )//-AlFeSi(0 0 1) and Al(0 4)//Fe4Al13(1 0 ) interfaces by the ab initio pseudo potential density functional theory method. Work ... -
AC corrosion on cathodically protected steel
(Master thesis, 2012)This report deals with the effect of alternating current on cathodically protected steel. AC corrosion has become relevant in the offshore industry due to the introduction of the direct electric heating system (DEH). The ... -
AC Induced Corrosion of Carbon Steel in 3.5wt% NaCl Electrolyte
(Master thesis, 2012)This paper deals with alternating current (AC) corrosion of low alloy carbon steel in 3.5 wt% NaCl electrolyte. Accelerated corrosion rates have been reported when exposed to AC and the corrosion mechanism is not well ... -
Accelerated recrystallization by electric current flash heating in cold-rolled Al-5Cu alloy under the influence of concurrent precipitation
(Journal article; Peer reviewed, 2019)The influence of flash heating by using a continuous direct current on the recrystallization behavior of an Al-5Cu alloy under the influence of concurrent precipitation of Al2Cu precipitates has been investigated. In ... -
Accelerated Stress Testing and Performance Evaluation of Carbon-Coated Aluminum Bipolar Plates for Lightweight Proton Exchange Membrane Fuel Cells
(Master thesis, 2023)The ever-growing global demand for clean and sustainable energy sources has sparked considerable interest in the development of fuel cell technologies. PEMFCs have gained widespread popularity due to their versatile ... -
Achieving dispersed fine soft Bi particles and grain refinement in a hypermonotectic Al-Bi alloy by severe plastic deformation and annealing
(Journal article; Peer reviewed, 2018)The present work revealed that equal-channel angular pressing (ECAP) deformation combined with appropriate annealing could represent as an efficient route to modify immiscible as-cast microstructure of a monotectic Al–8Bi ... -
Achieving high-strength metallurgical bonding between A356 aluminum and copper through compound casting
(Peer reviewed; Journal article, 2021)Due to stable surface oxides on the solid copper surface and the ease of forming Al2O3 films at the aluminum melt surface, it is difficult to achieve high-strength metallurgical bonding between the two materials through ... -
Achieving superior dispersion-strengthening effect in an AA5xxx Al-Mg-Mn alloy by mico-alloying
(Peer reviewed; Journal article, 2023)5xxx Al-Mg based alloys are widely applied as non-heat-treatable alloys. In this work, we designed a dispersion-strengthening Al-4Mg-1Mn-0.3Fe-0.2Si-0.2Zr-0.2Cr (wt.%) alloy. By applying ramp heating and 400 °C isothermal ... -
Achieving ultrahigh strength in binary Al-10Mg alloy through heavy cryogenic rolling
(Peer reviewed; Journal article, 2022)Al-Mg alloys with high Mg contents have attracted considerable interest given enhanced strength and simultaneously reduced density by high Mg solute concentrations. In the present study, we proposed a strategy of strengthening ... -
Activation of multiple stress responses in Staphylococcus aureus substantially lowers the minimal inhibitory concentration when combining two novel antibiotic drug candidates
(Peer reviewed; Journal article, 2023)The past few decades have been plagued by an increasing number of infections caused by antibiotic resistant bacteria. To mitigate the rise in untreatable infections, we need new antibiotics with novel targets and drug ... -
Activity of carbon-encapsulated Ni<inf>12−x</inf>Fe<inf>x</inf>P<inf>5</inf> catalysts for the oxygen evolution reaction: Combination of high activity and stability
(Peer reviewed; Journal article, 2022)Rational design of efficient, earth-abundant, and durable electrocatalysts to accelerate the oxygen evolution reaction (OER) is critical for hydrogen ion by water electrolysis. In the present work, nanostructured Ni12−xFexP5 ... -
Adamantyl Side Chains as Anti-Aggregating Moieties in Dyes for Dye-Sensitized Solar Cells
(Peer reviewed; Journal article, 2022)Designing and evaluating novel dye concepts is crucial for the development of the field of dye-sensitized solar cells (DSSCs). In our recent report, the novel concept of tethering the anti-aggregation additive chenodeoxycholic ... -
Adapting Modern Industrial Operation Parameters in a Standardized Laboratory Cell for Measuring Current Efficiency for Aluminium Deposition: Unexpected Challenges and Lessons Learned
(Journal article, 2020)“Current efficiency” is an important cell parameter which shows how efficiently current is used to produce aluminium. Operational parameters that affect current efficiency have been widely studied in the aluminium industry, ... -
Addition of Secondary Aluminium in Sand Cast Aluminium-Silicon Alloys
(Master thesis, 2020)For denne masteroppgaven var målet å undersøke effekten tilsetningen av legeringse-lementer som kobber, jern, sink, nikkel og mangan har på en AlSi10Mg-legering.Samt å finne et gunstig varmebehandlingsprogram for nevnte ...