Blar i Institutt for materialteknologi på utgivelsesdato
Viser treff 1161-1180 av 2540
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Goldstone-like phonon modes in a (111)-strained perovskite
(Journal article; Peer reviewed, 2018)Goldstone modes are massless particles resulting from spontaneous symmetry breaking. Although such modes are found in elementary particle physics as well as in condensed-matter systems like superfluid helium, superconductors, ... -
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 ... -
Effect of small concentrations of gallium and lead on anodic activation of aluminium in chloride solution
(Journal article; Peer reviewed, 2018)The presents objective is to investigate the combined effect of alloyed Pb and Ga on surface segregation by heat treatment and ensuing anodic activation of aluminium in chloride solution. Model alloys containing Pb and Ga, ... -
Structural Characterization of Natural Quartz by Scanning TEM
(Journal article; Peer reviewed, 2018)For quartz, despite its industrial importance and an extensive amount of research done on it, there are still open fundamental questions, e.g. regarding crystal defects, phase changes or damage mechanisms under ionizing ... -
The Applicability of Aluminium Alloys as Reinforcement Material in Concrete Constructions
(Master thesis, 2018)This thesis is a part of the DARE2C research project. The research projects primary objective is to develop a more environmentally-friendly type of concrete where more than 55% of the cement is replaced with less CO2(g) ... -
Corrosion fatigue of an extruded 7046 alloy
(Master thesis, 2018)The corrosion fatigue properties of a 7046 alloy were investigated and compared to previously reported work by SINTEF on the same alloy tested in air. To establish the corrosion fatigue properties, samples were either ... -
Enhanced in-plane ferroelectricity in BaTiO3 thin films fabricated by aqueous chemical solution deposition
(Journal article; Peer reviewed, 2018)Ferroelectric BaTiO3 is widely used in capacitors, but the low Curie temperature limits a further use of BaTiO3. In this work we present an aqueous chemical solution deposition (CSD) route for BaTiO3 thin films, demonstrating ... -
Damring formation during rotary kiln chromite pre-reduction: Effects of pulverized carbonaceous fuel selection and partial pellet melting
(Journal article; Peer reviewed, 2018)Electricity consumption is the largest cost contributing factor in the production of ferrochrome. Currently the pelletized chromite pre-reduction process (solid-state reduction of chromite) is the process option with the ... -
Perfluorocarbon Formation During Rare Earth Electrolysis
(Journal article; Peer reviewed, 2018)A challenge during rare earth (RE) electrolysis is to avoid emissions of perfluorocarbon (PFC) green-house gases. The objective of this work was to study how to operate the RE electrolysis process with neither PFC formation ... -
Enhanced dispersoid precipitation and dispersion strengthening in an Al alloy by microalloying with Cd
(Journal article; Peer reviewed, 2018)The dispersion hardening effect of Mn(Fe)-containing dispersoids in aluminium alloys has long been ignored since it is difficult to achieve a high number density of fine dispersoids with conventional alloying compositions. ... -
Corrosion and Cathodic Protection of Steel-Aluminium Galvanic Couples in Subsea Structures
(Master thesis, 2018)An increasing interest for use of aluminium in subsea structures has been seen the resent years, considering replacing some of the heavier steel components with aluminium. Due to good corrosion resistance and strength to ... -
Recovery and Utilisation of Kerf Waste from Silicon Wafering Process
(Master thesis, 2018)While the green credentials of solar photovoltaic technology are often touted, there is still substantial room for improvement in the silicon solar photovoltaic value chain. In particular, silicon kerf which is a byproduct ... -
Revealing the heterogeneous nucleation behavior of equiaxed grains of inoculated Al alloys during directional solidification
(Journal article, 2018)An in-situ study on the directional solidification of an inoculated Al-20 wt%Cu alloy under well-controlled constant cooling rates and temperature gradients has been carried out using a microfocus X-radiography set-up. The ... -
Intercalation of CO₂, water and diglyme in MXenes using molecular simulations
(Master thesis, 2018)Since its discovery in 2011, MXenes have gained a lot of attention for their application in energy storage. Their combination of being a two dimensional material, as well as having excellent electronic and mechanical ... -
Mechanical Properties after Welding and Post Weld Heat Treatment of a 6082 Aluminium Alloy
(Master thesis, 2018)Lightweight materials are currently gaining popularity and are sought for by the construction and transportation industries. The heat-treatable 6xxxx series aluminium alloys are popular in lightweight products by combining ... -
Correlating oriented grain number density of recrystallisation in particle-containing aluminium alloys
(Journal article; Peer reviewed, 2018)The recrystallized grain structure of Al–(Mn)–Fe–Si alloys after isothermal annealing was studied by electron backscatter diffraction (EBSD) technique. Statistical correlation suggests that the frequency of forming P-oriented ... -
Biaxial strength and slow crack growth in porous alumina with silica sintering aid
(Journal article, 2018)Biaxial strength, fracture toughness and subcritical crack growth are reported for coarse grained porous alumina ceramics. The materials were prepared with a varying amount of a silica sintering aid, which resulted in the ... -
Probing heat generation during tensile plastic deformation of a bulk metallic glass at cryogenic temperature
(Journal article; Peer reviewed, 2018)Despite significant research efforts, the deformation and failure mechanisms of metallic glasses remain not well understood. In the absence of periodic structure, these materials typically deform in highly localized, thin ... -
Investigation of Macrosegregation Formation in Aluminium DC Casting for Different Alloy Systems
(Journal article, 2018)Direct chill (DC) casting of aluminum involves alloys employing different solute elements. In this article, a qualitative analysis and comparison of macrosegregation formation is presented for three different alloy systems: ... -
Quantifying the grain boundary segregation strengthening induced by post-ECAP aging in an Al-5Cu alloy
(Journal article, 2018)Hardening on annealing (HOA) has been frequently observed in nanostructured metals and alloys. For nanostructured materials obtained by severe plastic deformation (SPD), HOA has been attributed to the reduction of dislocation ...