Browsing Institutt for materialteknologi by Issue Date
Now showing items 1101-1120 of 2540
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Influence of thermomechanical processing sequence on properties of AA6082-IF steel cold roll bonded composite sheet
(Journal article; Peer reviewed, 2018)Cold roll bonded tri-layered composites consisting of AA6082 and IF steel have been produced. The goal was to find the optimal sequence of solutionizing, aging and rolling, for obtaining good bond strength and at the same ... -
Vibrational spectroscopic study of pH dependent solvation at an Ge(100)-water interface during an electrode potential triggered surface termination transition.
(Journal article; Peer reviewed, 2018)The charge-dependent structure of interfacial water at the n-Ge(100)-aqueous perchlorate interface was studied by controlling the electrode potential. Specifically, a joint attenuated total reflection infrared spectroscopy ... -
The Potential of Functionalized Ceramic Particles in Coatings for Improved Scratch Resistance
(Journal article; Peer reviewed, 2018)The top layer of a typical high pressure floor laminate (HPL) consists of a melamine formaldehyde (MF) impregnated special wear layer (overlay) with alumina particles. This top layer plays a crucial role in determining the ... -
Discussion of bi-film index and LiMCA data in industrial aluminum remelting trials
(Journal article; Peer reviewed, 2018)The trend in the aluminum high end market is to set unrealistic quality requirements e.g. inclusion free metal. The importance of quality and the ability to measure is growing. LiMCA is a unique, well-established tool for ... -
Preparation and surface modifications on hollow silica nano spheres - Nano- insulation
(Master thesis, 2018)Hollow silica nano spheres (HSNS) were synthesised with the use of polystyrene templates. Based on the polystyrene templates, tetraethyl orthosilicate (TEOS) was hydrolysed and attached on the surface, in either an acidic ... -
Work hardening and Portevin-Le Chatelier (PLC) effect in aluminium alloys
(Master thesis, 2018)Mechanical testing and microstructure characterization of an AA5182 alloy is performed for use as input for calibration and further development of models for work hardening and dynamic strain aging effects. The experimental ... -
Recycling of Glass Wool Waste
(Master thesis, 2018)The importance of environmentally friendly solution is an ever-increasing concern of industries all over the country. The glass wool industry has for a long time had a problem regarding waste from their production process. ... -
In-situ studies of multicrystalline silicon nucleation and growth on alpha- and beta-Si3N4 coated substrates
(Journal article; Peer reviewed, 2018)The growth of silicon on various nitride coated quartz substrates were studied using in-situ observation of the solidification process. Three different coating types were used: One consisting entirely of α-Si3N4 particles, ... -
Lattice rotations in precipitate free zones in an Al-Mg-Si alloy
(Journal article; Peer reviewed, 2018)Scanning precession electron diffraction and automated crystal orientation mapping in a transmission electron microscope (TEM) have been applied to quantitatively study the crystal orientation of precipitate free zones ... -
Metallic octahedral CoSe2 threaded by N-doped carbon nanotubes: A flexible framework for high-performance potassium-ion batteries
(Journal article; Peer reviewed, 2018)Due to the abundant and low‐cost K resources, the exploration of suitable materials for potassium‐ion batteries (KIBs) is advancing as a promising alternative to lithium‐ion batteries. However, the large‐sized and ... -
Formation of aluminium carbide in Hall-Héroult electrolysis cell environments
(Journal article; Peer reviewed, 2018)The formation and dissolution of aluminium carbide under conditions similar to the chemical and electrochemical environments in the Hall-Héroult process were studied in laboratory cells, including cells with reversed ... -
A First-Principles Study of the Al (001)/Fe(0-11) Interface
(Journal article; Peer reviewed, 2018)Two phase Stefan problem was solved using analytical method in cylindrical domain. To solve governing equations Eigen conditions were formulated by using separation of variable technique. Eigenvalues of the eigencondition ... -
Thermal expansion and electrical conductivity of Fe and Cu doped MnCo2O4 spinel
(Journal article; Peer reviewed, 2018)Manganese cobalt spinel oxides are promising coating materials for corrosion protection of metallic interconnects in solid oxide fuel cell stacks. This work investigates how Fe and Cu doping affect the crystal structure, ... -
Modelling microstructure evolution during casting, homogenization and ageing heat treatment of Al-Mg-Si-Cu-Fe-Mn alloys
(Journal article; Peer reviewed, 2018)Understanding microstructural evolution occupies one of the central positions in the discipline of materials science and engineering. In this review we summarize the recent research activities on modelling microstructure ... -
Effect of Cation Ordering on the Performance and Chemical Stability of Layered Double Perovskite Cathodes
(Journal article; Peer reviewed, 2018)The effect of A-site cation ordering on the cathode performance and chemical stability of A-site cation ordered LaBaCo2O5+δ and disordered La0.5Ba0.5CoO3−δ materials are reported. Symmetric half-cells with a proton-conducting ... -
Lead-free piezoelectric materials for medical application
(Master thesis, 2018)In this work, K0.5Na0.5NbO3, (KNN) and K0.495Na0.495Ca0.005NbO3 thin films for biomedical applications have been prepared from an aqueous precursor solutions with 2.5 or 5.0 mol% of alkali excess. Ca2+ was introduced as ... -
Temperature and Velocity Effects on Mass and Momentum Transport in Spacer-Filled Channels for Reverse Electrodialysis: A Numerical Study
(Journal article; Peer reviewed, 2018)Concentration polarization is one of the main challenges of membrane-based processes such as power generation by reverse electrodialysis. Spacers in the compartments can enhance mass transfer by reducing concentration ... -
Kinetic Investigations of SiMn Slags From Different Mn Sources
(Journal article; Peer reviewed, 2018)The kinetics of MnO and SiO2 reduction were investigated for Silicomanganese (SiMn) slags using a Thermogravimetric analysis (TGA) between 1773 K and 1923 K (1500 °C and 1650 °C) under CO atmospheric pressure. The charge ... -
Applications of screw extrusion for pure aluminium and aluminium foils
(Master thesis, 2018)This thesis has assessed the effect of the screw extrusion process on a super pure aluminium Ø 3mm wire. This thesis also determined that commercial quality aluminium foil can be screw extruded using the prototype found ... -
Explanation of Bubble Nucleation Mechanisms: A Gradient Theory Approach
(Journal article; Peer reviewed, 2018)A Helmholtz free energy description of the four nucleation mechanisms used to explain the bubble nucleation in electrochemical systems is presented. The mechanisms are compared based on the nucleation energy barrier and ...