Blar i Institutt for materialteknologi på tittel
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Flow and Heat Transfer in a Radially Spreading Liquid Metal Jet Related to Casting of Ferroalloys
(Dr. ingeniøravhandling, 0809-103X; 2000:83, Doctoral thesis, 2000)In the past more and more advanced and fine-tuned processes for steel production have resulted in increased demands for new and more costeffective ferroalloys used as constituents in the processes. Casting techniques and ... -
Flue Gas Recirculation for the Silicon Process
(Doctoral theses at NTNU;2023:135, Doctoral thesis, 2023)Metallurgical-grade silicon is a critical material for modern society. It is used as an alloying agent in aluminium alloys, feedstock for silicones, photovoltaics and electronics. Silicon is produced by carbothermal reduction ... -
Fluidity of Aluminium Foundry Alloys
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:185, Doctoral thesis, 2005)The fluidity of an alloy plays a key role for the foundry and transport industries as it affects the quality and soundness of the cast products. Particularly, fluidity influences the reject rates, hence casting costs and ... -
Fluorescent Nanocomposites: Hollow Silica Microspheres with Embedded Carbon Dots
(Journal article; Peer reviewed, 2021)Intrinsically fluorescent carbon dots may form the basis for a safer and more accurate sensor technology for digital counting in bioanalytical assays. This work presents a simple and inexpensive synthesis method for producing ... -
Fluoroethylene and H2O as additives in electrolytes based on lithium bis(fluorosulfonyl)imide with silicon anodes
(Master thesis, 2022)Effekten av fluoretylenkarbonat (FEC) og 1000 ppm H2O som tilsetningsstoffer i en elektrolytt basert på litium bis(fluorsulfonyl)imid (LiFSI) på silisiumanoder, ble studert med hensyn på syklingsevne, Coulombisk effektivitet, ... -
Flux-smelting behavior and aluminothermic reduction of a pre-reduced Mn ore
(Master thesis, 2023)Denne masteroppgaven presenterer en eksperimentell studie som undersøker smelte- og aluminotermisk smelte-reduksjonsprosesser av en pre-redusert Mn-malm ved bruk av kalk (CaO) og metallisk aluminium. Målet med studien er ... -
Forekomst av Staphylococcus aureus på kunstgressbaner
(Bachelor thesis, 2020)Den første kunstgressbanen innen idrett på verdensbasis ble bygget på 1960-tallet, og siden har kunstgress utviklet seg gjennom fire generasjoner. Tredje generasjons (3G) kunstgress består av kunstgressfibre, sand og ... -
Formation and characterization of β-and α-Silicon Carbide produced during Silicon/Ferrosilicon process
(Doctoral theses at NTNU;2020:252, Doctoral thesis, 2020)Silicon carbide (SiC) is one of the main intermediate compounds generated during primary silicon (Si) production in submerged arc furnaces. Carbon materials, either biomass-based (charcoal and wood chips) or based on fossil ... -
The Formation and Disintegration of Rafts from Different Aluminas and Fines
(Peer reviewed; Journal article, 2022)Raft formation is a frequently encountered problem during alumina feeding in the Hall-Héroult-process and will delay alumina from being dissolved into the melt. The mechanisms for the formation and disintegration of rafts ... -
Formation and evolution of the interfacial structure in Al/steel compound castings during solidification and heat treatment
(Peer reviewed; Journal article, 2020)In this work, Al7SiMg/steel compound castings were produced through a low-pressure die casting process. All steel inserts were galvanized, where half of them were flux-coated to further improve the wettability and remove ... -
Formation and growth of crystal defects in directionally solidified multicrystalline silicon for solar cells
(Doktoravhandlinger ved NTNU, 1503-8181, Doctoral thesis, 2008) -
Formation mechanism and growth of MNbO3,M=K, Na by in situ X-ray diffraction
(Journal article; Peer reviewed, 2017)Hydrothermal synthesis is a well-established method to produce complex oxides, and is a potential interesting approach to synthesize stoichiometric lead-free piezoelectric K0.5Na0.5NbO3. Due to challenges in obtaining the ... -
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 ... -
Formation of Carbon Build-Up on the Flue Wall of Anode Baking Furnace
(Journal article; Peer reviewed, 2017)A hard carbon build-up layer often forms on the flue wall surface in anode baking furnaces. The layer accumulates over thermal circles and needs to be mechanically removed regularly to ensure sufficient space for the anodes ... -
Formation of Copper–Neodymium Intermetallic Compounds by Carbothermic Reduction of Neodymium Oxide in the Presence of Copper
(Journal article; Peer reviewed, 2018)Carbothermic reduction of neodymium(III) oxide (Nd2O3) was performed by arc melting and in a graphite resistance furnace, using copper as a solvent metal. Successful carbothermic reduction was evident by formation of ... -
Formation of Dislocation Arrays from CSL-type Grain Boundaries in Solar Silicon
(Master thesis, 2019)Fotovoltaisk solenergi er allerede en av de store fornybare energikildene og forventes å være en av de viktigste energiteknologiene i en bærekraftig fremtid. Solceller basert på multikrystallinsk silisium har vært en ... -
Formation of Hard Grey Scale (HGS) on the Surface of a Cold-finger in the Aluminium Production Industry
(Doctoral theses at NTNU;2021:183, Doctoral thesis, 2021)The present work has investigated the formation mechanisms of Hard Grey Scale (HGS) in a duct transporting the off-gas from aluminium production pot cells to the Gas Treatment Centre (GTC). For that purpose, a cooled fouling ... -
Formation of incoherent deformation twin boundaries in a coarse-grained Al-7Mg alloy
(Journal article; Peer reviewed, 2015)Deformation twinning has rarely been observed in coarse grained Al and its alloys except under some extreme conditions such as ultrahigh deformation strain or strain rates. Here, we report that a significant amount of Σ3 ... -
Formation of Primary Silicon and its Influence on the Eutectic Solidification in Unmodified Hypoeutectic Al-Si Alloys - Investigation of Orientation Relationships by EBSD
(Master thesis, 2018)Nucleation and growth of the primary and eutectic silicon in unmodified hypoeutectic Al-Si alloy have been investigated for via optical microscopy, EBSD and SEM . The influence of the cooling rate and phosphorus concentration ... -
Formation of Silicon Carbide and Graphite in the Silicomanganese Process
(Master thesis, 2012)When a liquid SiMn alloy is cooled, carbon is dissolved from the melt. The dissolved carbon either forms graphite or reacts with silicon from the melt to form SiC. The goal of this thesis has been to determine how temperature ...