Browsing Institutt for materialteknologi by Issue Date
Now showing items 1141-1160 of 2540
-
High interfacial charge storage capability of carbonaceous cathodes for Mg batteries
(Journal article; Peer reviewed, 2018)A rechargeable Mg battery where the capacity mainly originates from reversible reactions occurring at the electrode/electrolyte interface efficiently avoids the challenge of sluggish Mg intercalation encountered in ... -
Improvement of surface properties of high pressure laminates
(Doctoral theses at NTNU;2018:59, Doctoral thesis, 2018)Laminated flooring is an important part of the decorative laminates market. High pressure laminates in particular are preferred products for flooring due to their outstanding properties such as fire and stain resistance, ... -
Oxide – organic heterostructures: a case study of charge displacement absence at a SnO2 – copper phthalocyanine buried interface
(Journal article; Peer reviewed, 2018)Reduced tin dioxide/copper phthalocyanine (SnOx/CuPc) heterojunctions recently gained much attention in hybrid electronics due to their defect structure, allowing tuning of the electronic properties at the interface towards ... -
Epoxy-Based Nanocomposites for High-Voltage Insulation: A Review
(Journal article, 2018)Epoxy nanocomposites, with inorganic oxide nanoparticles as filler, can exhibit novel property combinations, such as enhanced mechanical strength, higher thermal conductivity, increased dielectric breakdown strength, and ... -
Characterization and Optimization of AlSi10Mg-Components Produced by Selective Laser Melting
(Master thesis, 2018)The additive manufacturing process known as selective laser melting (SLM) produces metallic parts directly from a computer aided design (CAD)-model, by selectively melting metallic powder particles together in a layer-by-layer ... -
Thermal Conductivity and Compaction of GDL-MPL Interfacial Composite Material
(Journal article; Peer reviewed, 2018)The microporous layer (MPL) and the gas diffusion layer (GDL) in a polymer electrolyte membrane (PEM) fuel cell assembly are often treated as separate layers in the literature. However, there exists a considerable third ... -
Press Form Hardening of Aluminium - The influence of hot forming, quench interruption and direct artificial aging on the mechanical properties of AA6082
(Master thesis, 2018)The automotive industry is in need of new lightweight solutions to meet stricter regulations regarding reduction in greenhouse gas emissions. Replacing steel components with age-hardenable high-strength aluminium alloys ... -
The Mechanical Properties During Thermomechanical Treatment of an Al-Cu-Mg-Si Alloy Intended for Zippers.
(Master thesis, 2018)The objective of this project has been to find a suitable thermomechanical treatment for an Al- Cu-Mg-Si alloy. The aluminium alloy is to be used in zippers, produced by YKK, for jeans. The composition of the alloy is 1,25 ... -
Room temperature mechanical properties of A356 alloy with Ni additions from 0.5 Wt to 2 Wt%
(Journal article; Peer reviewed, 2018)In recent years, the influence of Ni on high-temperature mechanical properties of casting Al alloys has been extensively examined in the literature. In the present study, room temperature mechanical properties of an A356 ... -
Preliminary Experimental Study of the Thermal Stability and Chemical Reactivity of the Phosphate-Based Binder used in Al2O3-Based Ceramic Foam Filters (CFFs)
(Journal article; Peer reviewed, 2018)Filtration of liquid aluminium is widely used in the industry for the removal of inclusions, and Ceramic Foam Filters (CFFs) are often the filtration media of choice. It is known that PH3 (phosphine) can be released from ... -
Screw Extrusion of Light Metals: Development of materials, characterization and process analysis
(Doctoral theses at NTNU;2018:218, Doctoral thesis, 2018)The presented work highlights the possibilities inherent in a new method for continuous extrusion, i.e. hereafter named metal continuous screw extrusion (MCSE). This was done by expanding the knowledge of the process itself, ... -
Precipitation hardening of a 6082 aluminium alloy upon application of direct electrical current
(Master thesis, 2018)The research deals with the investigation of the precipitation hardening response of a 6082 aluminium alloy with the application of direct electrical current. An experimental setup was designed and built to conduct experiments ... -
Passivation Threshold for the Oxidation of Liquid Silicon and Thermodynamic Non-equilibrium in the Gas Phase
(Journal article; Peer reviewed, 2018)The present study focuses on a specific step of the metallurgical path of purification to provide solar-grade silicon: the removal of boron through the injection of H2O(g)-H2(g)-Ar(g) (cold gas process). A progressive ... -
CFD Modeling of boron removal from liquid silicon with cold gases and plasma
(Journal article; Peer reviewed, 2018)The present study focuses on a specific step of the metallurgical path of purification to provide solar-grade silicon: the removal of boron through the injection of H2O(g)-H2(g)-Ar(g) (cold gas process) or of Ar-H2-O2 ... -
Influence of processing on stability, microstructure and thermoelectric properties of Ca3Co4-xO9+δ
(Journal article; Peer reviewed, 2018)Due to high figure of merit, Ca3Co4-xO9+δ (CCO) has potential as p-type material for high-temperature thermoelectrics. Here, the influence of processing including solid state sintering, spark plasma sintering and ... -
Dynamic Current Distribution in the Electrodes of Submerged Arc Furnace Using Scalar and Vector Potentials
(Journal article; Peer reviewed, 2018)This work presents computations of electric current distributions inside an industrial submerged arc furnace. A 3D model has been developed in ANSYS Fluent that solves Maxwell’s equations based on scalar and vector potentials ... -
Photoelectrochemical Characterization of Dye-sensitized Solar Cells
(Master thesis, 2018)Dye-sensitized solar cells, DSSCs, are thin film solar cells based on a photoelectrochemical system where a photo-sensitized anode and an electrolyte forms a semiconductor. Upon exposure of sunlight, the surface of the ... -
Facile Low Temperature Hydrothermal Synthesis of BaTiO3 Nanoparticles Studied by In Situ X-ray Diffraction
(Journal article; Peer reviewed, 2018)Ferroelectric materials are crucial for today’s technological society and nanostructured ferroelectric materials are important for the downscaling of devices. Controlled and reproducible synthesis of these materials are, ... -
The Effect of Microstructure and Cu Content on Corrosion Behavior of 6060 Aluminum Alloy
(Master thesis, 2018)AlMgSi alloys have gained more popularity in the automobile industry in recent years due to attractive properties such as good corrosion resistance, machineability and high strength-to-weight ratio. Cu is commonly added ... -
Pistachio‐Shuck‐Like MoSe2/C Core/Shell Nanostructures for High‐Performance Potassium‐Ion Storage
(Journal article; Peer reviewed, 2018)Potassium‐ion batteries (KIBs) have recently attracted intensive attention because of the abundant potassium resources and their low cost and high safety. However, the major challenge faced by KIBs lies in the lack of ...