Blar i Institutt for materialteknologi på tittel
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Optimizing carbon coating parameters for obtaining SiO2/C anodes with improved electrochemical performance
(Peer reviewed; Journal article, 2021)In this work, we present a comprehensive and systematic study on the use of low-cost and highly abundant carbon precursors to obtain SiO2/C anodes with superior electrochemical performance towards Li-ions. Different SiO2/C ... -
Optimizing fuel cell for Shell Eco-marathon 2009
(Master thesis, 2009) -
Optimizing Microalgae Biomass Production; Using Nanomaterials for Enhanced Light Transport
(Master thesis, 2020)Den lave utnyttelsen av lys i nåværende fotobioreaktorer er en stor utfordring når det kommer til å gjøre industriell produksjon av mikroalger økonomisk lønnsomt. En lovende strategi for å forbedre den volumetriske ... -
Optimizing multiple beam interferometry in the surface forces apparatus: Novel optics, reflection mode modeling, metal layer thicknesses, birefringence, and rotation of anisotropic layers
(Journal article; Peer reviewed, 2019)Multiple beam interferometry (MBI) evolved as a powerful tool for the simultaneous evaluation of thin film thicknesses and refractive indices in Surface Forces Apparatus (SFA) measurements. However, analysis has relied on ... -
Optimizing of Strømhard austenitic manganese steel
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:88, Doctoral thesis, 2009)In the present doctoral thesis the focus has been on two different ways to achieve improvement of the mechanical properties of an austenitic manganese steel. One of them was to introduce substrate particles and see if this ... -
Optimum scavenger concentrations for sonochemical nanoparticle synthesis
(Journal article; Peer reviewed, 2023)Maintaining nanoparticle properties when scaling up a chemical synthesis is challenging due to the complex interplay between reducing agents and precursors. A sonochemical synthesis route does not require the addition of ... -
Options to Improve Water Quality and Operation of Treatment at Rud Svømmehall (Bærum)
(Bachelor thesis, 2022)Mennesker forurenser svømmebasseng med ulike stoffer, slik som svette, urin, hår, kosmetikk og døde hudceller. Uten behandling vil disse stoffene lagres i vannet over tid. Det er dermed viktig med gode vannbehandlingsprosesser ... -
Ore melting and reduction in silicomanganese production
(Journal article; Peer reviewed, 2010)The charge for silicomangansese production consists of manganese ore (often mixed with ferromanganese slag) dolomite or calcite, quartz, and in some cases, other additions. These materials have different melting properties, ... -
Organic binder as a substitute for bentonite in ilmenite pelletization
(Master thesis, 2012)TiZir Titanium & Iron produces high titania slag and high purity pig iron from ilmenite in Tyssedal. The ilmenite is pelletized before smelting. Bentonite is added to the ilmenite concentrate as a binder to give the pellets ... -
Orientation and Projection Center Refinement for EBSD Indexing in Python
(Master thesis, 2021)I dette arbeidet er et sett med algoritmer for forbedring av krystallorientering og projeksjonssenter estimater spesielt etter, men ikke begrenset til, dictionary indexing av EBSD mønster presentert. Algoritmene er utviklet ... -
Orientation dependent pinning of (sub)grains by dispersoids during recovery and recrystallization in an Al–Mn alloy
(Peer reviewed; Journal article, 2023)The recrystallized grain size and texture in alloys can be controlled via the microchemistry state during thermomechanical processing. The influence of concurrent precipitation on recovery and recrystallization is here ... -
Orientation independent and dependent subgrain growth during iso-thermal annealing of high- purity and commercial purity aluminium
(Journal article; Peer reviewed, 2019)The orientation dependence on recovery has been studied in cold-rolled and annealed polycrystalline high-purity aluminium (99.99 wt%), binary Al-0.25Mn and commercial purity aluminium. The growth mechanisms were found to ... -
Orientation relationship between b-Si3N4 and Si in multicrystalline silicon ingots for PV applications
(Journal article; Peer reviewed, 2018)β-Si3N4 particles are thought to be nucleation sites for silicon in multicrystalline silicon (mc-Si) ingots for PV applications. The orientation relationship (OR) between Si and β-Si3N4 has been investigated by transmission ... -
Orientation relationships of phase transformation in α-Al12Mn3Si pseudomorphs after plate-like Al6Mn precipitate in an AA3004 Al-Mn based alloy
(Journal article; Peer reviewed, 2017)The phase transformation in the plate-like precipitates of Al6Mn in an AA3004 Al-Mn based alloy, which was prepared by a chemical extraction technique, was investigated using transmission electron microscopy. The boiling-phenol ... -
Origin of ferroelectric polarization in tetragonal tungsten-bronze-type oxides
(Journal article; Peer reviewed, 2016)The origin of ferroelectric polarization in tetragonal tungsten-bronze- (TTB-) type oxide strontium barium niobate (SBN) is investigated using first-principles density functional calculations. We study in particular the ... -
Orthorhombic-tetragonal phase transition induced by Ta isovalent doping and its effect on fatigue characteristics of KNL-NSTx ceramics
(Journal article; Peer reviewed, 2018)The effect of Ta addition on the bipolar fatigue characteristics of lead-free KNL-NSTx ceramics (x = 0, 0.04, 0.07 and 0.11 mol%) is studied. Bipolar cycling up to 1 × 106 cycles leads to strong degradation of the polarization ... -
An Overall Furnace Model for the Silicomanganese Process
(Journal article; Peer reviewed, 2021)An overall model for a pilot-scale silicomanganese furnace that simultaneously considers electrical and thermal conditions, process chemistry, and flow of solid and liquid substances. -
Overflatebehandling av aluminiumslegering og kompatibilitet med hydrogenperoksid for romapplikasjoner
(Bachelor thesis, 2022)Nammo har fått en kontrakt som innebærer utvikling av styresystemet Roll and Attitude Control System (RACS) for bæreraketten VEGA-E til European Space Agency (ESA). Styresystemets drivstoffbeholder er av aluminium med ... -
Overflatebehandling av aluminiumslegering og kompatibilitet med hydrogenperoksid for romapplikasjoner
(Bachelor thesis, 2022)Nammo har fått en kontrakt som innebærer utvikling av styresystemet Roll and Attitude Control System (RACS) for bæreraketten VEGA-E til European Space Agency (ESA). Styresystemets drivstoffbeholder er av aluminium med ... -
An Overview of Currently Applied Ferrochrome Production Processes and Their Waste Management Practices
(Peer reviewed; Journal article, 2023)Ferrochrome (FeCr) is the main source of virgin chromium (Cr) units used in modern-day chromium (Cr) containing alloys. The vast majority of produced Cr is used during the production of stainless steel, which owes its ...