Institutt for materialteknologi: Recent submissions
Now showing items 1-20 of 2628
-
Understanding heterogeneous nucleation and predicting grain size in wire and arc additive manufacturing of steels with inoculation
(Journal article; Peer reviewed, 2024)Inoculation has become a common practice to achieve grain refinement in metal additive manufacturing, and its application in steels has been extensively investigated in recent years. However, the nucleation behavior of ... -
Coexistence of multi-scale domains in ferroelectric polycrystals with non-uniform grain-size distributions
(Peer reviewed; Journal article, 2024)Engineering of ferroelectric domain structures enables direct control over the switching dynamics and is crucial for tuning the functional properties of ferroelectrics for various applications, ranging from capacitors to ... -
A study on the Microstructural Evolution of a 3D-printed Coating for High-Temperature Applications
(Master thesis, 2024)En flymotor må kunne generere tilstrekkelig fart for å lette og forbli i luften. Energien som kreves produseres i motorens forbrenningskammer, som ofte opererer ved høye temperaturer rundt 1700℃. Materialet som motoren og ... -
Sustainable production of FeSiB phase change material (PCM) for thermal energy storage: An LCA study
(Master thesis, 2023)The eutectic Fe-24Si-11B alloy is studied for thermal energy storage as part of the EU project THERMOBAT. Three different methods have been created for producing this alloy, named FeSi, FeB, and FeSiAl route in this study. ... -
On the visibility of GP-zones in 6xxx Al alloys in atomic LAADF-STEM
(Journal article; Peer reviewed, 2024)In this work, the contrast seen in low-angle annular dark-field (LAADF) scanning transmission electron microscopy (STEM) of Guinier-Preston zones (GP-zones) in Al-Mg-Si alloys (6xxx) is discussed by STEM simulations, ... -
Scaling Gold Nanoparticle Synthesis: Transition From Batch to Semi-Batch Flow in a Millifluidic Two-Phase Systems
(Master thesis, 2024)Syntesen av guld (Au) nanopartiklar (NP) har fått betydande uppmärksamhet på grund av deras justerbara optiska egenskaper och breda användningsområden, såsom biosensorer, cancerterapi och fotovoltaik. Här beskriver vi ... -
Modeling of Creep in Refractory Lining in Anode Baking Furnaces
(Journal article; Peer reviewed, 2024)Refractory flue walls in anode baking furnaces are exposed to harsh conditions during operation, affecting the structural properties of the material. The flue walls in industrial furnaces degrade over time to the point ... -
Electrokinetic modeling of mixtures: Impact of size and surface electrical property of particles
(Journal article; Peer reviewed, 2024)Electrokinetic modeling of mixtures: Impact of size and surface electrical property of particles -
Evaluating the Reaction Kinetics on the H2 Reduction of a Manganese Ore at Elevated Temperatures
(Journal article; Peer reviewed, 2024)This study investigates the hydrogen reduction of Nchwaning manganese ore at elevated temperatures to enhance understanding of reaction kinetics and optimize industrial applications. Experimental investigations were conducted ... -
Composite Biocarbon Agglomerates for Si/FeSi Production
(Bachelor thesis, 2024)Med et økende fokus på global oppvarming, har de norske ferrolegeringsprodusentene utarbeidet et veikart mot 2031 for å øke forholdet mellom biologiske og fossile reduksjonsmidler. Flertallet av reduksjonsmidlene som brukes ... -
Fe/Zr binary MOF-based separator for highly efficient polysulfide adsorption and conversion in Li-S batteries
(Journal article; Peer reviewed, 2024)Lithium-sulfur (Li-S) batteries are known as a next-generation energy storage technology due to their high theoretical energy density and low cost. However, the shuttling of soluble lithium polysulfides (LPS) between ... -
X-ray Structure of Eleven New N,N′-Substituted Guanidines: Effect of Substituents on Tautomer Structure in the Solid State
(Journal article; Peer reviewed, 2024)Guanidine-containing molecules are an interesting class of compounds within both medicinal and material sciences. Having knowledge of their tautomerism is key in designing guanidines that interact with biological and ... -
Characterization of Petroleum Cokes for Use in Li-ion Batteries
(Master thesis, 2024)De siste årene har etterspørselen etter grafitt, som er en viktig komponent i litiumionbatterier (LIB), økt betydelig på grunn av den økende populariteten til elbiler. Naturlig grafitt utvinnes fra gruver, mens syntetisk ... -
Extrinsically controlled electronic behavior at improper ferroelectric domain walls
(Doctoral theses at NTNU;2024:447, Doctoral thesis, 2024)Ferroelectric domain walls are natural interfaces, separating volumes with uniform polarization orientation. The walls have a width of a few Ångstrøm and they can develop completely different electronic properties than the ... -
Pilot-Scale Aluminothermic Production of Silicon Alloy and Alumina-Rich Slag
(Journal article; Peer reviewed, 2024)As global demand for silicon (Si) and alumina continues to surge, the significance of developing more sustainable production methods has intensified. The SisAl process represents a path-breaking approach to producing Si ... -
Accelerating precipitation hardening by natural aging in a 6082 Al-Mg-Si alloy
(Journal article; Peer reviewed, 2024)It is well known that long time natural aging (NA) after quenching from solution treatment will significantly reduce the precipitation hardening kinetics and peak hardness of most 6xxx aluminum alloys during later artificial ... -
Review of Metal Screw Extrusion: State of the Art and Beyond
(Journal article; Peer reviewed, 2024)Metal screw extrusion (MSE) is a continuous, solid-state forming method utilizing an inherently high degree of deformation to consolidate fragmented input materials into a solid bulk by breaking their oxide skins. Severe ... -
Effect of initial grain size on the recrystallization behavior and recrystallization texture of a Mg–3Gd alloy
(Peer reviewed; Journal article, 2024) -
Insights on the Prelithiation of Diatom SiO₂ anodes for Lithium-ion Batteries
(Master thesis, 2024)Nanostrukturer av SiO_2, hentet fra skallene til diatomé-mikroalger fremstår som en kandidat for høy energitetthet og bærekraftige anoder for neste generasjons litium-ion-batterier (LIBs), og oppnår kapasiteter på rundt ... -
Investigation about the Effects of Conventional and Screw Extrusion on the Properties of AA1370 Aluminium Process Scrap and End-of-Life Scrap Material
(Master thesis, 2024)Denne studien omfattet produksjon av ekstruderte profiler ved hjelp av både konvensjonell ekstrudering og den nye skrueteknikken for ekstrudering, med granulerte kabler fra AA1370 aluminiumlegering. Etter ekstruderingen ...