Blar i Institutt for materialteknologi på tittel
Viser treff 299-318 av 2496
-
Charge Transport in Water-NaCl Electrolytes with Molecular Dynamics Simulations
(Peer reviewed; Journal article, 2023)A systematic description of microscopic mechanisms is necessary to understand mass transport in solid and liquid electrolytes. From Molecular Dynamics (MD) simulations, transport properties can be computed and provide a ... -
Charged domain walls in improper ferroelectric hexagonal manganites and gallates
(Journal article; Peer reviewed, 2018)Ferroelectric domain walls are attracting broad attention as atomic-scale switches, diodes and mobile wires for next-generation nanoelectronics. Charged domain walls in improper ferroelectrics are particularly interesting ... -
Chemical and morphological insights on the initial lithiation and delithiation of SiO2 anodes for Lithium-ion Batteries
(Master thesis, 2023)Litium-ion batterier (LIB-er) dominerer batterimarkedet for bærbare elektroniske enheter og har en utbredt anvendelse i det voksende markedet for bilindustrien og stasjonær energilagring. De mest vanlige katodematerialene ... -
Chemical Durability of Thermal Insulating Materials in Hall-Héroult Electrolysis Cells
(Journal article; Peer reviewed, 2019)The most common thermal insulating materials used in the cathode lining in aluminum electrolysis cells are Moler (diatomaceous earth), calcium silicate, or vermiculite based materials. The thermal insulation layer is ... -
Chemical expansion due to hydration of proton conducting perovskite oxide ceramics
(Journal article; Peer reviewed, 2014)The crystal structures of proton conducting BaZr1-xYxO3-x/2 (BZY05-BZY20) and BaCe0.8Y0.2O2.9 (BCY20) during hydration/dehydration has been studied by in situ high temperature X-ray diffraction and thermal analysis. A ... -
Chemical Modification of Al-Mg2Si Eutectic With Additions of Calcium and Strontium
(Master thesis, 2020)Eutektiske og legeringer nær eutektisk komposisjon er vanlege å bruke til støping på grunn av ypperlige støpeegenskaper, og ein slik legering er Al-5Mg-2Si som danner ein stor andel av den eutektiske fasen Al-Mg2Si. Sjølv ... -
Chemical Potential Differences in the Macroscopic Limit from Fluctuations in Small Systems
(Peer reviewed; Journal article, 2021)We present a new method for computing chemical potential differences of macroscopic systems by sampling fluctuations in small systems. The small system method, presented by Schnell et al. [Schnell et al., J. Phys. Chem. ... -
Chemical redistribution and change in crystal lattice parameters during stress relaxation annealing of the AD730 TM superalloy
(Peer reviewed; Journal article, 2022)The present study aims to understand the underlying mechanisms of macroscopic contraction that occurs in γ/γ′ nickel based superalloys submitted to isothermal annealing and resulting in stress relaxation retardation. Samples ... -
Chemical stability of Ca3Co4−xO9+δ/CaMnO3−δ p–n junction for oxide-based thermoelectric generators
(Peer reviewed; Journal article, 2020)An all-oxide thermoelectric generator for high-temperature operation depends on a low electrical resistance of the direct p–n junction. Ca3Co4−xO9+δ and CaMnO3−δ exhibit p-type and n-type electronic conductivity, respectively, ... -
Chemical Stability of Thermal Insulating Materials in Sodium Vapour Environment
(Journal article; Peer reviewed, 2017)The most typical thermal insulating materials used in the cathode lining in aluminium electrolysis cells are Moler, calcium silicate, or vermiculite. The thermal insulation is important for the overall thermal and dimensional ... -
Chemical tracer diffusion of Sr and Co in polycrystalline Ca-deficient CaMnO3-δ with CaMn2O4 precipitates
(Journal article; Peer reviewed, 2018)Diffusivity on the A- and B-site of polycrystalline perovskite CaMnO3-δ with Ca deficiency and spinel CaMn2O4 (marokite) as a secondary phase was studied using chemical tracers and secondary ion mass spectrometry (SIMS) ... -
A Children’s Health Perspective on Nano- and Microplastics
(Peer reviewed; Journal article, 2022)Background: Pregnancy, infancy, and childhood are sensitive windows for environmental exposures. Yet the health effects of exposure to nano- and microplastics (NMPs) remain largely uninvestigated or unknown. Although ... -
Chromate-free Pre-treatment of Aluminium for Adhesive Bonding
(Dr. ingeniøravhandling; 2003:59, Doctoral thesis, 2003)The increasing use of aluminium in automotive and transport applications is primarily driven by its high strength to weight ratio, enabling substantially improved fuel economy and reduced CO2 emissions when substituted for ... -
Chromium coatings from trivalent chromium plating baths: Characterization and cathodic delamination behaviour
(Peer reviewed; Journal article, 2021)Novel two-layer chromium-based coatings comprised of a first layer containing chromium, oxygen and carbon (Cr-O-C) and an oxygen rich (Cr-O) topcoat were electrodeposited from trivalent chromium electrolyte. The complex ... -
Clustering and Precipitation during Early-Stage Artificial Aging of Al–Si–Mg(–Cu) Foundry Alloys
(Peer reviewed; Journal article, 2023)High-Si aluminum foundry alloys are an important material class for products with complex 3D geometries where casting is the most suitable production method. With Mg and/or Cu additions, these alloys gain strength upon ... -
CO and CO2 Anode Gas Concentration at Lower Current Densities in Cryolite Melt
(Peer reviewed; Journal article, 2020)This work aims to study the CO-CO2 gas composition at low potentials and low current densities in cryolite melt with relatively low alumina content (≤2 wt%). There is a scarcity of data in the literature regarding the low ... -
CO Reactivity of Manganese Lumps Versus Briquettes
(Peer reviewed; Journal article, 2020)In this work, a comparison between CO reactivity of lumps and briquettes made of two different binder and three different raw materials is presented. Experimental results on the prereduction behavior of such materials in ... -
Co(OH)2@MnO2 nanosheet arrays as hybrid binder-free electrodes for high-performance lithium-ion batteries and supercapacitors
(Journal article; Peer reviewed, 2019)Co(OH)2@MnO2 nanosheet arrays were directly grown on nickel foam via two-step electrodeposition method with subsequent heat treatment at 170 °C. The hybrid electrode, where the electrodeposited Co(OH)2 and MnO2 nanosheets ...