Browsing Institutt for materialteknologi by Title
Now showing items 1523-1542 of 2563
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Mn alloys production with the use of natural gas. - Understanding the kinetics of Mn alloy production
(Master thesis, 2015)This research intends to develop the necessary understanding regarding the reaction kinetics involved in the production of manganese ferroalloys. The main reactions of interest are as follows: MnO_((l) )+C_((s,l))=Mn_((l ... -
Mn3O4 and Carbon-Based Cathode Materials for Magnesium Batteries
(Doctoral theses at NTNU;2017:245, Doctoral thesis, 2017) -
Modeling Alumina Feeding With the µ(I)-Rheology
(Journal article; Peer reviewed, 2023)Efficient feeding and dissolution of alumina are necessary in order to maintain a stable Hall–Héroult process. One dose of alumina contains several thousand grains, and simulating the motion of individual particles is in ... -
Modeling and performance analysis of a solar photovoltaic energy community in Norway
(Master thesis, 2023)De høye strømprisene, fallende kostnader for installasjon av solenergi og de store forventningene om at solenergi, sammen med vindenergi, skal være de viktigste veiene for å nå det europeiske målet om netto nullutslipp ... -
Modeling interfacial mass transfer driven bubble growth in supersaturated solutions
(Peer reviewed; Journal article, 2020)A commonly encountered phenomenon in chemical processes is bubble evolution driven by supersaturation. On the continuum scale, this essentially involves interfacial mass transfer resulting in the growth of bubbles and their ... -
Modeling of electrochemical and photoelectrochemical impedance functions for films
(Master thesis, 2014)The aim of this study was to develop mathematical models for electrochemical and photoelectrochemical impedance transfer functions for mixed conducting films. These models include electrochemical impedance spectroscopy ... -
Modeling of Galvanic Corrosion - in Presence of External Direct and Alternating Currents
(Master thesis, 2022)Det har blitt observert økte korrosjonsrater på skip koblet til landstrøm. En mulig forklaring er dannelsen av en galvanisk kobling mellom defekter i malingsbelegget på skipsskroget (karbonstål) og jordingsanlegget på land ... -
Modeling of Hydrogen Diffusion in 25% Cr Super Duplex Stainless Steel
(Master thesis, 2012)Over the last years, several failures in duplex and super duplex stainless steel structures in subsea applications are reported to be a result of hydrogen induced stress cracking. One main source of hydrogen is found to ... -
Modeling of Recrystallization of Commercial Particle Containing Al-Alloys
(Chapter, 2020)In order to describe and discuss the recrystallization behavior of commercial particle containing Al-alloys, the physical basis and a mathematical formulation of a softening model nicknamed ALSOFT, accounting for the ... -
Modeling of Tapping Processes in Submerged Arc Furnaces
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:149, Doctoral thesis, 2011) -
Modeling over-ageing in Al-Mg-Si alloys by a multi-phase CALPHAD-coupled Kampmann-Wagner Numerical model
(Journal article, 2017)The formation of the equilibrium precipitation phase during ageing treatment of Al-Mg-Si alloys is preceded by a series of metastable phases. Given longer ageing time, higher ageing temperature or elevated temperature ... -
Modeling strain-path changes in aluminum and steel
(Journal article, 2017)The present paper evaluates two phenomenological plasticity models which account for the influence of strain-path change (SPC) on the stress-strain behavior. The HAH model (Barlat et al., 2014) is modified to capture SPC ... -
Modeling the Effect of Excess Vacancies on Precipitation and Mechanical Properties of Al–Mg–Si Alloys
(Peer reviewed; Journal article, 2023)A model for vacancy annihilation during aging has been combined with a precipitation model for coupled nucleation, growth, and coarsening in AA 6xxx series aluminum alloys. The simulation results were compared with ... -
Modeling Viscosity of High Titania Slag
(Peer reviewed; Journal article, 2020)TiO2-FeO-Ti2O3 slag system is the dominant system for industrial high-titania slag production. In the present work, viscosities of TiO2-FeO and TiO2-FeO-Ti2O3 systems were experimentally determined using the concentric ... -
Modelling and Analysis of vertical bifacial agrivoltaic test system at Skjetlein high school, Norway
(Master thesis, 2022)The agriculture sector is facing three significant challenges: i) food production must double by 2030 in order to feed an ever-growing population, ii) decrease in the amount of arable lands and iii) accelerating climate ... -
Modelling and experimental validation of microstructure evolution during the cooling stage of homogenization heat treatment of Al-Mg-Si alloys
(Journal article; Peer reviewed, 2018)A CALPHAD-coupled multi-component multi-phase Kampmann–Wagner Numerical modelling framework has been adapted and coupled with a homogenization model to predict the competitive nucleation and growth of multi-sized ... -
Modelling capacity fade in silicon-graphite composite electrodes for lithium-ion batteries
(Peer reviewed; Journal article, 2021)Silicon-based composite electrodes in lithium ion batteries attract increasing attention because of their high theoretical capacity. Here, numerical simulations are used to better understand the interplay between electrochemical ... -
Modelling Gas Flow in Furnaces for Si Production
(Master thesis, 2022)Lavere energiforbruk og høyere silisium utbytte er viktig for silisium produksjonen. For å oppnå dette er det viktig med stabile ovnsprosesser. Motstand mot gass-strømning i råmaterialet fører til et økt trykk i ovnen. Om ... -
Modelling Grain Growth with the Phase Field Method
(Master thesis, 2019)Kornvekst i et metall innebærer at kornene, volumer med atomer med samme orientering av krystallstrukturen, vokser og absorberer mindre korn, hvilket resulterer i en mer grovkornet struktur. Å forstå denne prosessen er ... -
Modelling microstructure and properties during annealing of coldrolled Al-Mn-Fe-Si-alloys with different microchemistries
(Journal article, 2014)The physical basis and a mathematical formulation of a softening model nicknamed Alsoft, accounting for the combined effect of recovery and recrystallization during annealing of heavily deformed aluminium alloys have been ...