Browsing Institutt for materialteknologi by Title
Now showing items 1347-1366 of 2579
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L-DOPA-Coated Manganese Oxide Nanoparticles as Dual MRI Contrast Agents and Drug-Delivery Vehicles
(Journal article; Peer reviewed, 2016)Manganese oxide nanoparticles (MONPs) are capable of time-dependent magnetic resonance imaging contrast switching as well as releasing a surface-bound drug. MONPs give T2/T2* contrast, but dissolve and release T1-active ... -
La0.2Sr0.8Fe0.8Ta0.2O3 (-) (delta) based thin film membranes with surface modification for oxygen production
(Journal article; Peer reviewed, 2012)High temperature dense ceramic membranes made from mixed ionic/electronic conducting perovskite ceramics represent a high potential as a reliable source for oxygen and syngas production. In this work, La0.2Sr0.8Fe0.8Ta0.2O3 ... -
Lab Scale Experiments on Alumina Raft Formation
(Chapter, 2020)During feeding of alumina into a Hall-Héroult cell, rafts floating on the bath surface may be formed. In this study, rafts were created in a laboratory furnace by adding 4 g secondary alumina in industrial bath. Samples ... -
Lab-Scale Physical Model Experiments to Understand the Effect of Particle Bed on Tapping Flow Rates
(Peer reviewed; Journal article, 2022)Optimal tapping of metallurgical furnaces is required for efficient furnace operation. Improper tapping can lead to metal and slag accumulation in the furnace thereby reducing the process efficiency. The mass flow rate of ... -
Laboratory method for investigating the influence of industrial process conditions on the emission of polycyclic aromatic hydrocarbons from carbonaceous materials
(Peer reviewed; Journal article, 2024)This work is dedicated to developing a laboratory method for assessing emissions of polycyclic aromatic hydrocarbons (PAHs) from different carbon-based materials at elevated temperatures. The method will additionally ... -
LaNi5-assisted hydrogenation of MgNi2 in the hybrid structures of La1.09Mg1.91Ni9D9.5 and La0.91Mg2.09Ni9D9.4
(Journal article; Peer reviewed, 2015)This work focused on the high pressure PCT and in situ neutron powder diffraction studies of the LaMg2Ni9-H2 (D2) system at pressures up to 1,000 bar. LaMg2Ni9 alloy was prepared by a powder metallurgy route from the LaNi9 ... -
Large breathing effect induced by water sorption in a remarkably stable nonporous cyanide-bridged coordination polymer
(Journal article; Peer reviewed, 2021) -
Laser welding of niobium to AISI 304 steel using a copper interlayer
(Peer reviewed; Journal article, 2020)Cu interlayers with thicknesses of 1, 1.5, and 2 mm were used to join niobium and AISI 304 steel. Fractures occurred in the weld, the Nb base metal, and the unmelted Cu interlayer when the Cu interlayer thickness was 1, ... -
Late-magmatic immiscibility during batholith formation: assessment of B isotopes and trace elements in tourmaline from the Land’s End granite, SW England
(Peer reviewed; Journal article, 2015)Quartz–tourmaline orbicules are unevenly distributed in the roof segment of the Land's End granite, SW England. This study shows that the orbicules formed from an immiscible hydrous borosilicate melt produced during the ... -
Lattice distortion induced site dependent carbon gettering at twin boundaries in silicon
(Journal article; Peer reviewed, 2017)The interactions between substitutional carbon atoms and S3 {111}, S9 {221}, and S27 {552} twin boundaries (TB) in silicon were investigated by first-principles calculations. The preferential segregation sites and segregation ... -
Lattice rotations in precipitate free zones in an Al-Mg-Si alloy
(Journal article; Peer reviewed, 2018)Scanning precession electron diffraction and automated crystal orientation mapping in a transmission electron microscope (TEM) have been applied to quantitatively study the crystal orientation of precipitate free zones ... -
Lattice thermal conductivity of TixZryHf1−x−yNiSn half-Heusler alloys calculated from first principles: Key role of nature of phonon modes
(Journal article; Peer reviewed, 2017)In spite of their relatively high lattice thermal conductivity κℓ, the XNiSn (X=Ti, Zr, or Hf) half-Heusler compounds are good thermoelectric materials. Previous studies have shown that κℓ can be reduced by sublattice ... -
Layer continuity in accumulative roll bonding of dissimilar material combinations
(Journal article; Peer reviewed, 2013)Strips were made by accumulative roll bonding of up to 64 alternating layers of an AA3103 alloy and either commercial purity copper or CuZn20 brass as the second type of layer. With increasing number of accumulative roll ... -
LCA of recycling aluminium incineration bottom ash, dross and shavings in a rotary furnace and environmental benefits of salt-slag valorisation
(Peer reviewed; Journal article, 2024)Recycling aluminium in a rotary furnace with salt-fluxes allows recovering valuable alloys from hard-to-recycle waste/side-streams such as packaging, dross and incinerator bottom ash. However, this recycling route generates ... -
LCO-coated NMC811 as zero-strain cathode for all-solid-state batteries
(Master thesis, 2024)Neste generasjons batterier er avgjørende for videreutviklingen av elektriske kjøretøy og elektroniske enheter. Nåværende litiumbatterier innehar betydelig risiko på grunn av deres brennbare flytende elektrolytter og ... -
Leaching and Modelling of LIB Black Mass (BM) for Metal Recovery
(Master thesis, 2022)På grunn av el-bilmarkedets eksponentielle vekst blir et stort antall Li-Ion-batterier (LIB-er) introdusert i samfunnet. Både essensielle råvarer og potensielt skadelige kjemikalier finnes i disse batteriene, og de etablerte ... -
Leaching and Precipitation Experiments Related to the Pedersen Process
(Master thesis, 2019)Store mengder avfall rødslam generes fra produksjon av metallurgisk aluminiumoksid via den nåværende kommersielle Bayer prosessen. Deponering av avfallet byr på miljøutfordringer. Alternativt kan aluminiumoksid produseres ... -
Leaching characteristics and mechanism of the synthetic calcium-aluminate slags for alumina recovery
(Journal article; Peer reviewed, 2019)The leaching characteristics and mechanism of synthetic CaO-Al2O3 slags in alkaline solution at atmospheric pressure have been studied. The purpose of the study is to have a better understanding of the leaching part of the ... -
Leaching kinetics and mechanism of slag produced from smelting-reduction of bauxite for alumina recovery
(Peer reviewed; Journal article, 2020)In the present study, we investigate the kinetics and mechanism of the leaching of calcium aluminate slag in Na2CO3 solution for alumina recovery. The slag consists of leachable phases, e.g., 12CaO·7Al2O3, CaO·Al2O3, ... -
Leaching of Hydrogen Pre-Reduced Mn ore to Produce MnO2
(Bachelor thesis, 2023)HAlMan project team har som mål å utvikle en bærekraftig metode for produksjon av mangandioksid (MnO2). De jobber også med produksjon av manganholdige legeringer for stål og aluminium i tillegg til å utforske ekstraksjon ...