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Microstructure and Properties of Wire Arc Additive Manufacturing of Inconel 625
(Peer reviewed; Journal article, 2022)In the present investigation, wire arc additive manufacturing of Inconel 625 was carried out with the cold metal transfer variant of the metal inert gas process. The heat input varied between 0.46 and 0.63 kJ/mm, which is ... -
A microstructure informed and mixed-mode cohesive zone approach to simulating hydrogen embrittlement
(Peer reviewed; Journal article, 2022)Hydrogen induced failure under uniaxial tension is simulated in a duplex stainless steel considering microstructural feature of the material. There are three key ingredients in the modelling approach: image processing and ... -
A microstructure-based yield stress and work-hardening model for textured 6xxx aluminium alloys
(Peer reviewed; Journal article, 2016)The plastic properties of an aluminium alloy are defined by its microstructure. The most important factors are the presence of alloying elements in the form of solid solution and precipitates of various sizes, and the ... -
Minority carrier lifetimes in Cz-Si wafers with intentional V-I transitions
(Peer reviewed; Journal article, 2017)A p-type Cz-Si crystal has been pulled with varying pulling speed in order to produce wafers containing two distinct regions; A region with silicon self-interstitial defects, and a vacancy dominated region. Band-to-band ... -
A mixed mode cohesive model for FRP laminates incorporating large scale bridging behaviour
(Peer reviewed; Journal article, 2020)A user defined cohesive material model is implemented in the LS-DYNA finite element code. The model is based on interface properties characterised from DCB specimens loaded with unequal bending moments. Different mode ... -
Mixed proton and electron conducting double perovskite anodes for stable and efficient tubular proton ceramic electrolysers
(Peer reviewed; Journal article, 2019)Hydrogen production from water electrolysis is a key enabling energy storage technology for the large-scale deployment of intermittent renewable energy sources. Proton ceramic electrolysers (PCEs) can produce dry pressurized ... -
Mn promoted Co catalysts for Fischer-Tropsch production of light olefins – An experimental and theoretical study
(Peer reviewed; Journal article, 2018)Three different CoMn/gamma-Al2O3 catalysts were prepared by the incipient wetness impregnation route and compared to a Co/gamma-Al2O3 catalyst. The effect of co-impregnation vs. sequential impregnation as well as the order ... -
Modeling Contact Resistance and Water Transport within a Cathode Liquid-Fed Proton Exchange Membrane Electrolyzer
(Peer reviewed; Journal article, 2023)Conventional proton-exchange membrane (PEM) water electrolyzers use thicker membranes (>175 μm) than their PEM fuel cell counterparts (<25 μm), which reduces hydrogen crossover but also reduces electrolyzer efficiency due ... -
Modeling Differential Enthalpy of Absorption of CO2 with Piperazine as a Function of Temperature
(Peer reviewed; Journal article, 2022)Temperature-dependent correlations for equilibrium constants (ln K) and heat of absorption (ΔHabs) of different reactions (i.e., deprotonation, double deprotonation, carbamate formation, protonated carbamate formation, ... -
Modeling Fischer–Tropsch kinetics and product distribution over a cobalt catalyst
(Peer reviewed; Journal article, 2021)A detailed kinetic model describing the consumption of key components and productdistribution in the Fischer–Tropsch synthesis (FTS) over a 20%Co/0.5Re γ-Al2O3commercial catalyst is developed. The developed model incorporates ... -
Modeling hydrogen transport and hydrogen-induced embrittlement
(SINTEF Rapport;, Research report, 2020)This document provides the theory manual and user manual for two finite elements for the modeling of hydrogen-induced embrittlement of metallic materials. The cohesive zone element (CZE) allows to simulate the creation of ... -
Modeling the Growth of Clostridium beijerinckii NCIMB 8052 on Lignocellulosic Sugars
(Peer reviewed; Journal article, 2018)To our knowledge, this is the first growth model of Clostridium beijerinckii NCIMB 8052 on glucose and xylose as representative lignocellulosic sugars, which considers the synergistic effects of sugars on the growth rate. ... -
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 ... -
Modeling Water Droplet Freezing and Collision with a Solid Surface
(Peer reviewed; Journal article, 2021)Water droplets released from the sea surface represent one of the major causes of ice accretion on marine vessels. A one-dimensional model of the freezing of a spherical water droplet moving in cold air was developed. The ... -
Modelling and experimental validation of microstructure evolution during the cooling stage of homogenization heat treatment of Al-Mg-Si alloys
(Journal article, 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 grain growth with the generalized Kampmann-Wagner numerical model
(Peer reviewed; Journal article, 2021)The multi-phase Kampmann-Wagner Numerical (KWN) model, which had been successfully applied for modeling particle precipitation (i.e. Ostwald ripening), is extended toward grain growth modeling. The extensions consist of ... -
Modelling of adsorption technologies for controlling indoor air quality
(Peer reviewed; Journal article, 2022)Technologies for control of indoor air quality are very important to ensure that health and comfort conditions are attained in closed environments. The indoor air quality market is fertile ground for adsorption technologies, ... -
Modelling of dispersed oil/water flow in a near-horizontal pipe
(Peer reviewed; Journal article, 2022)A gravity-diffusion model was implemented for predicting water concentration profiles in dispersed oil-continuous oil–water flows. In this model, the measured droplet size distributions were used instead of a droplet size ... -
Modelling of environmental ageing of polymers and polymer composites—durability prediction methods
(Peer reviewed; Journal article, 2022)Polymers and polymer composites are negatively impacted by environmental ageing, reducing their service lifetimes. The uncertainty of the material interaction with the environment compromises their superior strength and ...