Blar i Institutt for materialteknologi på tittel
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Alkaline manganese electrochemistry studied by in situ and operando spectropscopic methods - metal dissolution, oxide formation and oxygen evolution
(Journal article; Peer reviewed, 2019)Manganese-based systems are considered as candidate electrocatalysts for the electrochemical oxygen evolution reaction (OER), because of their abundance in biochemical oxygen producing catalyst systems. In this work, the ... -
Alkaline oxide interface modifiers for silicon fiber production
(Journal article; Peer reviewed, 2013)We demonstrate the ability to pull small diameter silicon-core fibers with low oxygen content by using interface modifiers between the silica cladding and the semiconductor. Alkali earths scavenge oxygen and form a ... -
Alkali‐silica reaction (ASR) – Performancetesting
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:269, Doctoral thesis, 2013)Whether or not concrete prism tests developed for assessment of alkali‐silica reactivity of aggregates is suitable for general ASR performance testing of concrete has been evaluated. The work has been part of the Norwegian ... -
All oxide thermoelectric device based on Ca0.931Mn0.98Ta0.02O3-δ-Ca3Co4O9 pn-junction
(Master thesis, 2017)Metal oxides are promising thermoelectric (TE) material candidates for TE modules operational in a range of 300-1200 K in air. In this work a TE oxide module was fabricated by co-sintering the p-type material Ca3Co4O9 ... -
All-oxide thermoelectric module with in situ formed non-rectifying complex p-p-n junction and transverse thermoelectric effect
(Journal article; Peer reviewed, 2018)All-oxide thermoelectric modules for energy harvesting are attractive due to high temperature stability, low cost, and the potential to use non-scarce and non-toxic elements. Thermoelectric modules are mostly fabricated ... -
Alloys as Anode Materials in Magnesium Ion Batteries
(Master thesis, 2012)This thesis is a feasibility study of the possible application of magnesium alloys forfuture magnesium-ion batteries. It investigates dierent alloys and characterizesthem with respect to internal resistance, overpotentials ... -
AlSi10Mg alloy nanocomposites reinforced with aluminum-coated graphene: Selective laser melting, interfacial microstructure and property analysis
(Journal article; Peer reviewed, 2019)Graphene has been successfully coated with a nano-Al layer through a novel activating treatment (i.e., organic aluminum reduction method). The nano-Al coated graphene was further processed into AlSi10Mg alloy based composites ... -
Alstruc' - en modell for størkning og varmebehandling av industrielle aluminiumlegeringer.
(Doctoral thesis, 2003)The thesis consists of a summary, and 11 papers. Part 6 in the summary includes a list of who did what in papers with several authors. The summary: The summary gives a short survey of 'Alstruc', and examples of calculations ... -
Alternating Current Corrosion of Aluminium Sacrificial Anodes
(Master thesis, 2013)Direct Electric Heating (DEH) is applied to subsea oil production and transmission pipelines to prevent freezing of hydrates as wax during productions shut downs. To prevent clogging, the pipes are heated by application ... -
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 ...