Blar i Institutt for materialteknologi på tittel
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In situ exsolution synthesis of composite cathodes for protonic ceramic fuel cells
(Doctoral theses at NTNU;2018:127, Doctoral thesis, 2018)Protonic ceramic fuel cells (PCFCs) have the potential to operate with hydrogen as a fuel in an environmentally friendly manner with no emissions and high electrical efficiency. The lower operation temperature of PCFCs due ... -
In situ formation of a polypyrrole-coating on a carbon-coated LiNi0.5Mn1.5O4 cathode in Li-ion batteries as a strategy for enhanced cycling stability.
(Master thesis, 2023)Li-ion batterier (LiBs) er den ledende batteriteknologien for bærbare enheter og forbrukerelektronikk i dagens marked. Konvensjonelle katodematerialer anvendt i disse batteriene inneholder ofte kobolt, som er giftig, dyrt, ... -
In situ high temperature spectroscopic study of liquid inclusions and hydroxyl groups in high purity natural quartz
(Peer reviewed; Journal article, 2021)High purity natural based quartz is used as raw material for production of crucibles for solar-grade silicon production. The crucible properties are strongly related to presence of water and hydroxyl groups in the raw ... -
In situ investigation of spinodal decomposition in hypermonotectic Al–Bi and Al–Bi–Zn alloys
(Journal article; Peer reviewed, 2008)Spinodal decomposition of hypermonotectic Al–6 wt.%Bi, Al–8 wt.%Bi and Al–6 wt.%Bi–8 wt.%Zn alloys has been investigated using synchrotron radiography. In the case of the 6 and 8 wt.%Bi binary alloys undercoolings of ... -
In Situ Measurements of the Chemical Stability of a Cast Aluminum Alloy Embedded in a Cement Paste with a High Amount of Supplementary Cementitious Material
(Peer reviewed; Journal article, 2021)In traditional reinforced concrete, the alkaline pore solution which passivates the steel rebars will get neutralized with time in an exposed environment. Therefore, to prevent corrosion initiation, the permeability of the ... -
In situ monitoring of pit gas composition during baking of anodes for aluminum electrolysis
(Journal article; Peer reviewed, 2019)Carbon anodes, which are consumed in aluminum electrolysis, are fabricated in separate anode plants where coke and pitch are mixed and vibrocompacted to green anode blocks before being baked in anode baking furnaces. The ... -
In situ nanocomposites for high voltage insulation
(Doctoral theses at NTNU;2022:36, Doctoral thesis, 2021)Rapid technological developments and the expanding scope of human activity has significantly increased energy demands. This has resulted in increasing requirements for insulation systems with improved dielectric, mechanical, ... -
In situ observation of the carbothermic reduction and foaming of slags in silicomanganese production
(Journal article; Peer reviewed, 2021)The carbothermic reduction of slag in silicomanganese production is accompanied by the release of carbon monoxide. This gas can accumulate as bubbles within the slag, leading to foaming and, potentially, disturbances to ... -
In situ strekkforsøk med EBSD karakterisering av HSLA-stål ved romtemperatur og -60 °C
(Master thesis, 2011)Denne oppgaven har tatt for seg et 420 MPa HSLA stål. Stålet ble sveisesimulertfor å oppnå mikrostruktur tilsvarende grovkornet og interkritisk grovkornetHAZ. Interkritisk grovkornet HAZ ble oppnådd ved en tosyklus ... -
In situ strekktesting og karakterisering av et 9%Ni-stål: ved hjelp av EBSD
(Master thesis, 2012)Denne oppgaven har tatt for seg karakterisering av mikrostruktur og in-situ strekk-testing for et 9%Ni-stål levert av JFE Steel. Dette ble gjennomført ved hjelp av EBSD og et spesialprodusert strekkbord for bruk inne i ... -
In situ synthesis of epoxy nanocomposites with hierarchical surface-modified SiO2 clusters
(Peer reviewed; Journal article, 2020)Polymer nanocomposites are often produced using in situ approaches where an inorganic filler (as the dispersed phase) is synthesized directly in an organic matrix. Such an approach generally leads to improved dispersion and ... -
In situ synthesis of hybrid inorganic-polymer nanocomposites
(Journal article; Peer reviewed, 2018)Hybrid inorganic–polymer nanocomposites can be employed in diverse applications due to the potential combination of desired properties from both the organic and inorganic components. The use of novel bottom–up in situ ... -
In situ synthesis of titania and titanium based organicinorganic nanomaterials
(Doctoral theses at NTNU;2017:230, Doctoral thesis, 2017)Inorganic and organic materials often exhibit opposite trends in properties (e.g. mechanical properties, thermal stability, hydrophobicity, optical properties) and the idea of combining these materials into new materials ... -
In Situ Tensile Testing During Continuous EBSD Mapping of Super Duplex Stainless Steel Containing Sigma Phase
(Master thesis, 2016)Super duplex stainless steels (SDSS) are materials which comprise an extraordinary combination of mechanical properties, corrosion resistance and relatively low cost. SDSS were developed on the basis for use in the North ... -
In situ X-ray diffraction and electrochemical impedance spectroscopy of a nanoporous Li2FeSiO4/C cathode during the initial charge/discharge cycle of a Li-ion battery
(Journal article; Peer reviewed, 2013)Understanding of the structural evolution of the cathode during the charge/discharge processes is crucial to describe the Li insertion/de-insertion mechanisms in a Li-ion battery. An in situ XRD cell has been specially ... -
In situ X-ray diffraction studies during hydrothermal synthesis of ferroelectric materials
(Doctoral theses at NTNU;2020:80, Doctoral thesis, 2020)Ferroelectric materials are an essential part of our technological society because of their dielectric and piezoelectric properties being utilized in capacitor, sensors and actuators. Nanostructured ferroelectric materials ... -
In situ X-ray diffraction studies of the crystallization of K0. 5Na0. 5NbO3 powders and thin films from an aqueous synthesis route
(Peer reviewed; Journal article, 2021)Aqueous chemical solution deposition is a promising route for ferroelectric K0.5Na0.5NbO3 (KNN) thin films, requiring a stable precursor solution with complexed Nb5+. Here, we report on the local structure of Nb-complexes ... -
In Vitro Biocompatibility of Piezoelectric K<inf>0.5</inf>Na<inf>0.5</inf>NbO<inf>3</inf>Thin Films on Platinized Silicon Substrates
(Peer reviewed; Journal article, 2020)Lead-free piezoelectric ceramics like K0.5Na0.5NbO3 (KNN) represent an emerging class of biomaterials for medical technology, as they can be used as components in implantable microelectromechanical systems (MEMS) and ... -
In-plane Ferroelectricity in Barium Titanate Films
(Doctoral theses at NTNU;2020:201, Doctoral thesis, 2020)Ferroelectric materials are irreplaceable materials in electronics used everywhere in the modern society. The ferroelectric perovskites are the most widely used class of ferroelectric materials, and the use is dominated ... -
In-situ Compession Testing of Nanosized Pillars
(Master thesis, 2014)Applications of nanomechanical testing methods have become increasingly important in all fields of material research. There is a significant interest in obtaining information about material features at small scales, in ...