Blar i Institutt for materialteknologi på tittel
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Wet Chemical Synthesis of Graphene for Battery Applications
(Master thesis, 2014)In this thesis, an improved Hummers method is used to produce graphene oxide, while thermal treatment has been used as the reduction process to form reduced graphene oxide. This modified version of Hummers method differs ... -
Wet Chemical Synthesis of Materials for Intermediate Band Solar Cells
(Master thesis, 2011)The economical feasibility of commercial, single-junction solar cells is limited by high costs and limited efficiencies. New solar cell concepts and materials are sought to decrease the production costs and increase the ... -
Wet chemical synthesis of silicon nanoparticles and phosphorescent oxides for white light emitting diodes
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:209, Doctoral thesis, 2014) -
Wet-chemical deposition of silicon quantum dots for enhanced solar cell efficiency
(Master thesis, 2011)Silicon quantum dots were synthesised wet-chemically by three different methods based on reduction of silicon tetrachloride with the reduction agents potassium naphthalide, sodium cyclopentadiene and the alkalide of ... -
Wettability of cokes by Fe-Mn melt
(Peer reviewed; Journal article, 2020)Four metallurgical cokes were heat treated at 1250 °C to 1550 °C in argon atmosphere. The influence of heat treatment on the microstructure of metallurgical cokes was characterized using X-ray diffraction and Raman ... -
WETTABILITY OF MOLTEN Fe-Si-B ALLOY ON GRAPHITE, Al2O3, AND h-BN SUBSTRATES
(Chapter, 2019)Fe-26.38Si-9.35B alloy (numbers in mass %) is of interest as a phase change material (PCM) because it exhibits high thermal conductivity, moderate melting point, high latent heat, and low cost. This study offers valuable ... -
Wettability of Solar GradeSilicon on Silicon Nitride Coated Silica
(Master thesis, 2009) -
Wettable TiB<inf>2</inf> Cathode for Aluminum Electrolysis: A Review
(Peer reviewed; Journal article, 2022)Titanium diboride (TiB2) is considered a promising material for wettable cathodes in aluminum electrolysis. The demand for wettable cathodes is associated with the development of inert anode technologies to eliminate CO2 ... -
Wetting Behavior and Reactivity of Molten Silicon with h-BN Substrate at Ultrahigh Temperatures up to 1750 °C
(Journal article; Peer reviewed, 2017)For a successful implementation of newly proposed silicon-based latent heat thermal energy storage systems, proper ceramic materials that could withstand a contact heating with molten silicon at temperatures much higher ... -
Wetting of Carbon Cathodes by Molten Electrolyte and Aluminium
(Journal article; Peer reviewed, 2021)The extent to which the carbon cathode is wetted by molten electrolyte or molten aluminium metal is important for understanding the cathode wear during aluminium electrolysis. The present paper reports on a laboratory study ... -
Wetting properties and interactions of SiO2-CaO-Al2O3 slags on SiC
(Master thesis, 2022)Fuktingsegenskapene til $SiO_2.CaO-Al_2O_3$ slagg på SiC har blitt undersøkt i en fuktingsovn. Seks sammensetninger av slag ble testen på tre forskjellige SiC materialle. Alle slaggene ble funnet til å reagere med SiC, og ... -
Wetting testing of wettable cathodes for aluminium production
(Master thesis, 2017)The aim of this work has been to assess the wettability of a set of carbon-TiB2 composites towards aluminium. In order to do so, further improvements to the immersion-emersion method, a method used to assess the wetting ... -
What is the trigger for the hydrogen evolution reaction? – towards electrocatalysis beyond the Sabatier principle
(Peer reviewed; Journal article, 2020)The mechanism of the hydrogen evolution reaction, although intensively studied for more than a century, remains a fundamental scientific challenge. Many important questions are still open, making it elusive to establish ... -
Wire and Arc Additive Manufacturing with TiC-Nanoparticle Reinforced AA5183 Alloy
(Peer reviewed; Journal article, 2020)Wire and arc additive manufacturing of aluminium-ceramic composites shows great potential to produce high strength materials. By incorporation of nanoparticles in the feedstock wire, fine-grained material with low ... -
Wire arc additive manufacturing of AA5183 with TiC nanoparticles
(Peer reviewed; Journal article, 2021)Aluminium alloys processed by wire arc additive manufacturing (WAAM) exhibit a relatively coarse microstructure with a columnar morphology. A powerful measure to refine the microstructure and to enhance mechanical properties ... -
Wire Arc Additive Manufacturing of Aluminium Alloys
(Doctoral theses at NTNU;2021:263, Doctoral thesis, 2021)Summary Additive manufacturing of metals has gained considerable attention from the industry and academia in the last decade. The attributes to create stand-alone components with novel designs and enhanced properties ... -
Wire Arc Additive Manufacturing of an Al-Mg Aluminium Matrix Nanocompsite
(Master thesis, 2020)Målet med denne studien var å benytte 10 mm ekstrudatprofiler fra kontinuerlig skrueekstrusjon av metaller (Metal Continuous Scew Extrusion, MCSE), en ny metode for fast tilstandsproduksjons av metalltråd for additiv ... -
Work hardening and Portevin-Le Chatelier (PLC) effect in aluminium alloys
(Master thesis, 2019)Bruk av enkelte Al-Mg-legeringer kan føre til utfordringer. Innenfor visse tøyningshastigheter og temperaturer kan det oppstå overflatefeil og tap av mekaniske egenskaper. Dette på grunn av Portevin-Le Chatelier-effekten. ... -
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 ... -
X-ray Microprobe Investigation of Iron During a Simulated Silicon Feedstock Extraction Process
(Peer reviewed; Journal article, 2016)Elemental silicon is extracted through carbothermic reduction from silicon-bearing raw feedstock materials such as quartz and quartzites. We investigate the micron-scale distribution and valence state of iron, a deleterious ...