Blar i Institutt for materialteknologi på tittel
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Formation of Dislocation Arrays from CSL-type Grain Boundaries in Solar Silicon
(Master thesis, 2019)Fotovoltaisk solenergi er allerede en av de store fornybare energikildene og forventes å være en av de viktigste energiteknologiene i en bærekraftig fremtid. Solceller basert på multikrystallinsk silisium har vært en ... -
Formation of Hard Grey Scale (HGS) on the Surface of a Cold-finger in the Aluminium Production Industry
(Doctoral theses at NTNU;2021:183, Doctoral thesis, 2021)The present work has investigated the formation mechanisms of Hard Grey Scale (HGS) in a duct transporting the off-gas from aluminium production pot cells to the Gas Treatment Centre (GTC). For that purpose, a cooled fouling ... -
Formation of incoherent deformation twin boundaries in a coarse-grained Al-7Mg alloy
(Journal article; Peer reviewed, 2015)Deformation twinning has rarely been observed in coarse grained Al and its alloys except under some extreme conditions such as ultrahigh deformation strain or strain rates. Here, we report that a significant amount of Σ3 ... -
Formation of Primary Silicon and its Influence on the Eutectic Solidification in Unmodified Hypoeutectic Al-Si Alloys - Investigation of Orientation Relationships by EBSD
(Master thesis, 2018)Nucleation and growth of the primary and eutectic silicon in unmodified hypoeutectic Al-Si alloy have been investigated for via optical microscopy, EBSD and SEM . The influence of the cooling rate and phosphorus concentration ... -
Formation of Silicon Carbide and Graphite in the Silicomanganese Process
(Master thesis, 2012)When a liquid SiMn alloy is cooled, carbon is dissolved from the melt. The dissolved carbon either forms graphite or reacts with silicon from the melt to form SiC. The goal of this thesis has been to determine how temperature ... -
Formation of Silicon Carbide in the Silicomanganese Process
(Master thesis, 2011)As the silicon content in a silicomanganese alloy increase, silicon carbide becomes the stable carbon phase. Little work is published on the formation of silicon carbide in the SiMn process. This thesis examines the formation ... -
Formation of {11-21} twin boundaries in titanium by kinking mechanism through accumulative dislocation slip
(Journal article; Peer reviewed, 2016)The twinning behavior and kinking behavior of a commercial purity Ti subjected to room temperature dynamic plastic deformation (DPD) has been studied. Three types of deformation twins, {1012}, {1122} and {1121}, have been ... -
Formation of Σ3{110} incoherent twin boundaries through geometrically necessary boundaries in an Al-8Zn alloy subjected to one pass of equal channel angular pressing
(Journal article, 2018)For coarse grained (CG) alloys with high stacking fault energies (SFEs), like aluminum, deformation twins can rarely form. Here, we report that Σ3{110} incoherent twin boundaries (ITBs) could be generated in a CG Al-8Zn ... -
Fracture modes in naturally aged aluminium alloys and an investigation of accelerated age hardening by incremental stretching
(Master thesis, 2023)En tidligere undersøkelse av effekten av syklisk elding på 7xxx aluminiumslegeringer fra flate ekstruderte profiler fant at både naturlig elding og visse kombinasjoner av syklisk elding førte til tidlige duktile skjærbrudd ... -
The fracture toughness of Mg2Si determined by 3-point bending and the indentation microcracking method
(Peer reviewed; Journal article, 2022)The Mg2Si intermetallic compound was produced from the raw materials by melting in a vacuum furnace. The purity of the as-cast material was 98 vol.%. Continuous polishing of a surface containing microhardness indentation ... -
Free, flexible and fast: Orientation mapping using the multi-core and GPU-accelerated template matching capabilities in the Python-based open source 4D-STEM analysis toolbox Pyxem
(Peer reviewed; Journal article, 2022)This work presents the new template matching capabilities implemented in Pyxem, an open source Python library for analyzing four-dimensional scanning transmission electron microscopy (4D-STEM) data. Template matching is a ... -
Freeze casting of piezoelectric BCZT for biomedical applications
(Master thesis, 2019)Bruken av piezoelektriske keramer som beinimplantat gir muligheten til å forsterke heling av skadet bein gjennom elektrisk stimulering in vivo. På denne måten kan rekonvalesenstiden og sannsynligheten for revisjonsutskiftninger ... -
Freeze-drying of NMC cathodes for Li-ion batteries
(Master thesis, 2023)I denne masteroppgaven ble frysetørking evaluert som en potensiell tørkemetode i produks- jon av NMC622 katoder. Det ble produsert testkatoder via frysetørking og referanseelektroder via vakuum-ovn tørking. Katodene ble ... -
Freezing solute atoms in nanograined aluminum alloys via high-density vacancies
(Peer reviewed; Journal article, 2022)Low-temperature decomposition of supersaturated solid solution into unfavorable intergranular precipitates is a long-standing bottleneck limiting the practical applications of nanograined aluminum alloys that are prepared ... -
Frequency controlled agglomeration of pt-nanoparticles in sonochemical synthesis
(Peer reviewed; Journal article, 2022)Optimizing the surface area of nanoparticles is key to achieving high catalytic activities for electrochemical energy conversion devices. In this work, the frequency range (200 kHz–500 kHz) for maximum sonochemical radical ... -
Frequency dependent polarisation switching in h-ErMnO3
(Journal article; Peer reviewed, 2018)We report an electric-field poling study of the geometric-driven improper ferroelectric h-ErMnO3. From a detailed dielectric analysis we deduce the temperature and frequency dependent range for which single-crystalline ... -
From Calves' Sculls to finished Bone-Ash Cupels and testing of Precious Meetals. An Investigation of the cupellation in the Mint in the Archbishop's Palace, Trondheim, in medieval times
(Peer reviewed; Journal article, 2021)The paper discusses three topics: (1) the production process of bone-ash cupels from bones in calves’ sculls to finished cupels, (2) cupellation of a silver and a gold alloy with known compositions in replica cupels and ... -
Fume Formation and Measurements in the Metal-Production Industry
(Doctoral theses at NTNU;2022:14, Doctoral thesis, 2021)Airborne Particulate Matter (PM) is considered to be a major concern for both occupational health and the environment, and in the metal production industry, the level of such particles in the air can be considerable. This ... -
Fume Formation from Oxidation of Liquid SiMn Alloy
(Journal article; Peer reviewed, 2017)Thermally generated fumes from the production of manganese ferroalloys are mostly composed of metallic oxides generated due to reaction between high-temperature molten metal and ambient oxygen in the air. In the current ... -
Fuming during processing of FeSi alloys
(Master thesis, 2021)Støving er ei stor utfordring for metallproduksjonsindustrien. Støv går inn i naturen som forurensing, og luftveiene til verksarbeidere, hvor de bidrar til luftveissykdommer og kreft. Derfor er det veldig viktig å kontrollere ...