Browsing Institutt for materialteknologi by Title
Now showing items 87-106 of 2563
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Alternating Current Corrosion of Aluminum
(Master thesis, 2015)Formation of wax and hydrates due to production stops is a well-known problem in the oil industry. Conventionally the pipelines are heated beyond a critical temperature to avoid this problem. This is done by a method called ... -
Alternating Current Corrosion of Carbon Steel
(Master thesis, 2011)The objective was to investigate if the established theory concerning corrosion calculations and electrochemical behavior of carbon is valid when steel is exposed to AC in an electrolyte consisting of 3,5 wt% NaCl and ... -
Alternating Current Corrosion of Steel in Seawater
(Master thesis, 2015)A challenge regarding the transportation of oil and gas in pipelines subsea is to keep the temperature high enough to avoid formation of wax and hydrates, which eventually will stop the flow. In 2000, Nexans introduced a ... -
Alternative Biomass Pellets with High Energy Density
(Bachelor thesis, 2023)Denne bacheloroppgaven undersøker muligheten for å lage biomasse pellets av ukonvensjonelt materiale, herunder biokull og halm med biotjære som bindemiddel. Forskjellige parametere ble endret for å oppnå målet om en mest ... -
Alternative Li-ion Cathodes based on Transition Metal Orthosilicates
(Doctoral thesis at NTNU;2016:57, Doctoral thesis, 2016)The aspiration of today’s society to become independent from crude oil and nuclear power led to a rapid growth of renewable energy production. Unfortunately, the majority of these energy sources are discontinuous and require ... -
Alternative Methods for Curing of TCO Thin Films
(Master thesis, 2014)Transparent conducting oxides have a unique combination of properties as they are both optical transparent in the visible region of the electromagnetic spectrum, and obtain a near-metallic conductivity. This makes them ... -
Alumina Dissolution in Cryolite Melts - Formation and Behavior of Rafts
(Master thesis, 2018)Alumina is the raw-material used for aluminum production in the Hall-Héroult process. Though the process is used for several years, some phenomena is not fully investigated yet. One of those is the formation of floating ... -
Alumina Dissolution in Cryolite Melts: Effects of Secondary Alumina Properties on Dissolution and Raft Formation
(Master thesis, 2022)I Hall-Héroult prosessen som brukes til å produsere primær alumina, er oppløsning av råmaterialet alumina en av de viktigste delene av selve produksjonsprosessen. Et fenomen som ikke er fullt forstått enda innen oppløsning ... -
Alumina feeding and raft formation: Raft collection and process parameters
(Journal article; Peer reviewed, 2019)Alumina, alongside with electricity and carbon, is the raw material used for production of aluminium in the Hall-Héroult process. An efficient dissolution process is important to acquire stable conditions for the cell, ... -
Aluminium Recycling Pre-treatments: Compaction and Thermal De-coating
(Doctoral theses at NTNU;2024:103, Doctoral thesis, 2024)Due to their light weight and versatility, aluminium alloys are found everywhere around us, from food packaging to aerospace applications. Aluminium recycling saves substantial amounts of energy, resources, and waste ... -
Aluminiumslegeringer som armering i betong - et eksperimentelt studie
(Bachelor thesis, 2019)Ti aluminiumslegeringer ble sett på som kandidater for å erstatte stål som armering i konstruksjoner. Denne oppgaven er en del av NFR prosjekt DARE2C (Durable Aluminium Reinforced Environmentally friendly Concrete ... -
Aluminizing of plain carbon steel: Effect of temperature on coating and alloy phase morphology at constant holding time
(Master thesis, 2012)Aluminized steel possesses excellent physical, chemical and mechanical properties as compared to plain carbon steel. This type of steel has found application in high temperature, oxidizing and corrosive environments. In ... -
Aluminothermic reduction of manganese oxide from selected mno-containing slags
(Peer reviewed; Journal article, 2021)The aluminothermic reduction process of manganese oxide from different slags by aluminum was investigated using pure Al and two types of industrial Al dross. Two types of MnO-containing slags were used: a synthetic highly ... -
Aluminum alloys as reinforcement in concrete constructions: Opportunities and Challenges
(Master thesis, 2021)Abstract will be available on 2024-06-17 -
Aluminum Recovery from White Aluminum Dross by a Mechanically Activated Phase Separation and Remelting Process
(Journal article; Peer reviewed, 2021)The aluminum recovery from white aluminum dross by a mechanical treatment and sizing followed by remelting process was investigated. The dross was subjected to a ball mill, and the obtained particles were sized in different ... -
Aluminum weld metal inoculation by Ti/TiB2/TiC additions to screw extruded filler wires
(Master thesis, 2022)Nylig utviklede metoder har gjort det mulig å produsere Al-TiC nanokompositt-sveisetråder som fører til økt kornforfining i sveisemetallet. Dette reduserer tilbøyeligheten til varmsprekking i de utherdbare aluminiumslegeringene, ... -
AMADEUS: Next generation materials and solid state devices for ultra high temperature energy storage and conversion
(Journal article; Peer reviewed, 2018)Starting in January 2017, AMADEUS (www.amadeus-project.eu) is the first project funded by the European Commission to research on a new generation of materials and solid state devices for ultra-high temperature energy storage ... -
Amine-functionalized magnetic nanocomposite particles for efficient immobilization of lipase: effects of functional molecule size on properties of the immobilized lipase
(Journal article; Peer reviewed, 2015)A cost-effective design of reusable enzyme-functionalized particles with better catalytic activity is of great scientific interest due to their applications in a wide range of catalytic reactions in several industrial ... -
Ammonia as Hydrogen Carrier. Effects of Ammonia on Polymer Electrolyte Membrane Fuel Cells
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:25, Doctoral thesis, 2004) -
An EXAFS and XANES Study of V, Ni, and Fe Speciation in Cokes for Anodes Used in Aluminum Production
(Journal article; Peer reviewed, 2019)Lower-quality petroleum coke with higher levels of sulfur and metal impurities will have to be used for the manufacturing of anodes for aluminum production in the future. The sulfur and metallic impurities affect the anode ...