Browsing Institutt for materialteknologi by Title
Now showing items 213-232 of 2495
-
C-TiB2 Composite Inert Cathode Material by Spark Plasma Sintering
(Master thesis, 2018)TiB2 has been considered a potential inert, wettable cathode material for aluminum reduction cells for a long time. An important characteristic of TiB2 as a cathode material, is its excellent wetting properties towards ... -
Calcareous smectite clay as a pozzolanic alternative to kaolin
(Journal article; Peer reviewed, 2019)The hydration of cement pastes with addition of a kaolinite rich clay (Clay A) and a calcareous smectite rich clay (Clay B) was investigated with isothermal calorimetry, in-situ XRD, PXRD, TGA and EPMA. Portland cement was ... -
Calcination temperature dependent catalytic activity and stability of IrO2 – Ta2O5 anodes for oxygen evolution reaction in aqueous sulfate electrolytes
(Journal article; Peer reviewed, 2017)In this work, commercial IrO2-Ta2O5 anodes with a certain composition calcined at three different temperatures were investigated. The results show that the calcination temperature has a significant influence on the ... -
Capillary forces as a limiting factor for sawing of ultrathin silicon wafers by diamond multi-wire saw
(Peer reviewed; Journal article, 2020)Succeeding with ultrathin silicon wafer sawing by diamond multi-wire saw, is not only a matter of optimization; the challenges of thin wafer production and the capability limit have not yet been fully understood. In this ... -
Carbon Behaviour during Si Production
(Master thesis, 2013)First, the carbon content decreases with the increasing of silicon content in silicon phases. Second, the carbon content has no obvious trend in ferrosilicon phases. Third, the carbon element can be formed as silicon carbide ... -
Carbon Capture and Recovery by Molten Salts Electrochemistry
(Master thesis, 2022)To mitigate global warming and climate change, it is an urgent mission for us to reduce the amount of CO2 in the atmosphere. One of the viable solutions to this challenge may be to capture, and preferably, to recover CO2 ... -
Carbon Cathode Wear in Aluminium Electrolysis Cells
(Peer reviewed; Journal article, 2019)Autopsies of six spent potlinings with different carbon cathode block grades, amperage regimes and cell designs were conducted at three separate smelters to reveal possible mechanisms causing cathode wear. The microstructure ... -
Carbon cathode wear in aluminium electrolysis cells
(Journal article; Peer reviewed, 2019)Autopsies of six spent potlinings with different carbon cathode block grades, amperage regimes and cell technologies were conducted at three separate smelters to reveal possible mechanisms causing cathode wear. Microstructure ... -
Carbon Cones as Negative Electrode Material in Lithium- Ion Batteries
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:244, Doctoral thesis, 2012) -
Carbon Nano-Fibre Supported Electrocatalysts for Fuel Cells
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:294, Doctoral thesis, 2012)This thesis covers topics related to fuel cell electrocatalyst preparation and electrochemical characterization. In particular, the influence of catalyst support material for Pt catalysts is examined in detail. The aim is ... -
Carbon Nanocones as Electrode Material in Lithium Ion Batteries
(Master thesis, 2011)A carbon powder containing carbon nanocones was used as an anode material in lithium ion batteries. The powder was also treated in different ways, chemically, with microwaves, and with heat. The carbon powder was tape ... -
Carbon segregation at Σ3 {112} grain boundaries in silicon
(Journal article; Peer reviewed, 2018)First-principles calculations were carried out to systematically investigate the carbon segregation along Σ3 {1 1 2} grain boundaries (GBs) in silicon. The energetically favorable segregation sites and corresponding ... -
Carbon-Coated Industrial-Grade Silicon as Potential Anode Material in Lithium-Ion Batteries
(Master thesis, 2021)Silisium (Si) er et lovende anodemateriale for neste generasjons litium-ione-batterier (LIB) grunnet dens evne til å reversibelt danne legeringer med høy litiumkonsentrasjon. Dette gir en ekstremt høy gravimetrisk kapasitet ... -
Carbon-polymer composite coatings for PEM fuel cell bipolar plates
(Journal article; Peer reviewed, 2014)A carbon-polymer composite coating on stainless steel 316L substrates was investigated for the use as bipolar plate material for polymer electrolyte membrane fuel cells. The coating consisted of 45 vol% graphite, 5 vol% ... -
Carbon-sulfur bond cleavage during adsorption of octadecane thiol to copper in ethanol
(Journal article; Peer reviewed, 2019)The effect of the solvent on the formation of thiol self-assembled monolayers (SAMs) on oxide-covered, reactive metals is more involved than in the well-studied gold–thiol system. In this work, copper covered with a native ... -
Carbon-Supported Nanostructured Core-Shell Catalysts for Low Temperature Fuel Cells
(Master thesis, 2015)The direct methanol fuel cell needs a catalyst with low overpotential and high current density for methanol oxidation to be commerically viable. The catalyst with highest performance at the moment is the PtRu-alloy catalyst, ... -
Carbon-supported Ru @ Pt Core-shell Catalyst for Low Temperature Fuel Cells
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:33, Doctoral thesis, 2012)A novel synthesis route for the manufacturing of Ru@Pt core-shell nanoparticles (NPs) originating from the University of Maryland, USA, was reproduced and adapted for electrochemical purposes in our laboratories at NTNU. ... -
Carburization of Manganese Oxide Sources by Natural Gas
(Peer reviewed; Journal article, 2022)Carburization of Comilog ore, pure MnO powder, and MnO pellet by natural gas was studied by experimental work. XRD, SEM-EDS, and thermogravimetric techniques were used for characterization and reduction behavior analysis. ... -
“Caring for Breast Cancer Patients Is a Work That Brings Sorrow”: A Qualitative Interview Study with Nurses in Tanzania
(Peer reviewed; Journal article, 2023)Introduction Breast cancer is increasing in sub-Saharan Africa (SSA), and most women are diagnosed at a late stage. This leads to increased suffering for the patients and challenging care situations for nurses. Limited ... -
Case Hardening of Hardox 450 Steel for Increased Ballistic Strength
(Master thesis, 2011)AbstractSteel alloys are the material that is most used in protective constructions today. The reason is the overall good properties of steels, with its high strength and hardness, high ductility, high formability and ...