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Aging behavior of al- and ga- stabilized li7la3zr2o12 garnet-type, solid-state electrolyte based on powder and single crystal x-ray diffraction
(Peer reviewed; Journal article, 2021)Li7La3Zr2O12 garnet (LLZO) belongs to the most promising solid electrolytes for the development of solid-state Li batteries. The stability of LLZO upon exposure to air is still a matter of discussion. Therefore, we performed ... -
Aging Behavior of Al- and Ga- Stabilized Li7La3Zr2O12 Garnet-Type, Solid-State Electrolyte Based on Powder and Single Crystal X-ray Diffraction
(Peer reviewed; Journal article, 2021)Li7La3Zr2O12 garnet (LLZO) belongs to the most promising solid electrolytes for the development of solid-state Li batteries. The stability of LLZO upon exposure to air is still a matter of discussion. Therefore, we performed ... -
Aging of Si3N4-bonded SiC Sidewall Materials in Hall-Héroult Cells: Material Characterization and Computer Simulation
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:229, Doctoral thesis, 2010)Si3N4-bonded SiC materials have become the state-of-the-art sidewall block materials used in aluminium electrolysis cells. Despite its outstanding properties, the material properties degradate in the cell over time. The ... -
Airborne Emissions from Mn Ferroalloy Production
(Journal article; Peer reviewed, 2018)Airborne emissions from metal production represent a health, safety, and environmental challenge to which more and more attention is being directed. Industries worldwide, as well as authorities and others, are resolute in ... -
Al-5Cu alloy processed by equal-channel angular pressing
(Journal article; Peer reviewed, 2017)An ECAP (equal channel angular pressing) processed UFG Al-5Cu alloy was characterized by electron backscatter diffraction (EBSD). It is revealed that a bimodal grain structure, i.e. ultrafine grains accompanied by micron-sized ... -
Al-Doped LLZO Synthesized via Spray Pyrolysis of Carbon-Free Nitrate Precursors
(Master thesis, 2023)Faststoff elektrolytter blir for tiden undersøkt for bruk i Li-ion batterier som en erstatning for de organiske væskebaserte elektrolyttene som brukes i dagens batterier. Dette vil forbedre batterisikkerheten, kjemisk og ... -
Alkali-silica reaction (ASR)-performance testing: Influence of specimen pre-treatment, exposure conditions and prism size on alkali leaching and prism expansion
(Journal article; Peer reviewed, 2013)Whether or not concrete prism tests developed for assessment of alkali–silica reactivity of aggregates might be suitable for general ASR performance testing of concrete has been evaluated. This paper discusses how variations ... -
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 ...