Blar i Institutt for materialteknologi på tittel
Viser treff 2094-2113 av 2527
-
Stabilizing strategies for the high‐voltage cathode material LiNi0.5‐xMn1.5+xO4 (LNMO)
(Doctoral theses at NTNU;2022:133, Doctoral thesis, 2022)In order to reduce the amount of greenhouse gasses and stop global warming, the transition to a renewable energy-based society needs to be accelerated. The production of energy-dense and high-performing batteries is a key ... -
Stabilizing the Cathode Interphase of LNMO using an Ionic-liquid based Electrolyte
(Peer reviewed; Journal article, 2023)The ionic liquid (IL)-based electrolyte comprising 1.2 M lithium bis(fluorosulfonyl)imide (LiFSI) in N-propyl-N-methylpyrrolidinium bis(fluorosulfonyl)imide (PYR13FSI) (ILE) has been evaluated as a suitable system for the ... -
Stacking Sequence, Interlayer Bonding, Termination Group Stability and Li/Na/Mg Diffusion in MXenes
(Peer reviewed; Journal article, 2021)A versatile group of 2D carbide materials from the past decade, MXenes, have attracted attention for their rich chemistry and wide range of properties. The perhaps best known MXene, namely, Ti3C2Tx, has been observed to ... -
State of Reactions in Silicomanganese Smelting Process
(Peer reviewed; Journal article, 2022)Recent studies by Safarian et al. and Kim show that carbothermic smelting processes for SiMn alloys proceed by multiple reactions consisting of oxidation of carbon, simultaneous reduction of MnO and SiO2 species, and ... -
State of the surface of antibacterial copper in phosphate buffered saline.
(Journal article; Peer reviewed, 2017)The state was investigated of the copper surface in phosphate buffered saline (PBS; 140 mM Cl−, 10 mM phosphate; pH 7) by a combination of cyclic voltammetry (CV) and chronoamperometry (CA) with in situ spectroscopic ... -
Static and Dynamic Transport Properties in Superconductors, Normal Metals and Ferromagnets
(Master thesis, 2013)In this thesis we consider transport properties in different hybrid nanostructures, consisting of normal metals, ferromagnets and superconductors. We investigate the thermal distribution of bound Andreev states, and use ... -
Statistical Analysis of Structure Loss in Czochralski Silicon Growth
(Chapter, 2019)In Czochralski monocrystalline silicon growth, structure loss (SL) is the loss of the mono-crystalline structure. It represents a significant loss of productivity. In this work, this phenomenon is investigated by statistical ... -
Statistical analysis of structure loss in Czochralski silicon growth
(Journal article; Peer reviewed, 2019)In Czochralski monocrystalline silicon growth, structure loss (SL) is the loss of the mono-crystalline structure. It represents a significant loss of productivity. In this work, this phenomenon is investigated by statistical ... -
Stål i beskyttelseskonstruksjoner: Introduksjon av Al2O3 til stålmatriks for økt penetrasjonsmotstand
(Master thesis, 2012)Lette våpen som håndvåpen, rifler og granater står for de fleste dødsfall i moderne konflikter, og behovet for robuste materialer til vern mot slike våpen er stort. Denne rapporten har tatt sikte på å avdekke hvilken effekt ... -
Stål i beskyttelseskonstruksjoner: Settherdet NVE36 konstruksjonsstål til beskyttelsesformål
(Master thesis, 2013)Tidligere forskning på 12 mm tykke settherdede plater av kvaliteten NVE36 har vist at settherding kan gi en markant forbedring av de ballistiske egenskapene til ferritt-perlittiske stålplater[1]. De ballistiske egenskapene ... -
Steam Reforming of Methane on Sponge Iron: Influence of GasComposition on Reaction Rate
(Peer reviewed; Journal article, 2020)Direct Reduction processes use gases (CO and H2) for iron reduction and production of sponge iron or direct reduced iron (DRI). The generation of this gas occurs through methane reforming, which can be done in a reformer ... -
STEM-based analysis of functional defects in ferroelectric ErMnO3
(Peer reviewed; Journal article, 2021) -
STEM-EDS of Inception Sites of Vented Trees in a HV XLPE Subsea Cable
(Chapter, 2023)High voltage XLPE cable cores have been subjected to wet ageing following the recommendations in CIGRE TB 722. The electrical ageing was performed at 500 Hz and 10 kV/mm. Vented water trees were detected initiating and ... -
Stoichiometry-Controlled Reversible Lithiation Capacity in Nanostructured Silicon Nitrides Enabled by in Situ Conversion Reaction
(Peer reviewed; Journal article, 2021)In modern Li-based batteries, alloying anode materials have the potential to drastically improve the volumetric and specific energy storage capacity. For the past decade silicon has been viewed as a “Holy Grail” among these ... -
Strain relaxation behaviour of vortices in a multiferroic superconductor
(Journal article; Peer reviewed, 2019)The elastic and anelastic properties of a single crystal of Co-doped pnictide Ba(Fe0.957Co0.043)2As2 have been determined by resonant ultrasound spectroscopy in the frequency range 10–500 kHz, both as a function of temperature ... -
Strain relaxation dynamics of multiferroic orthorhombic manganites
(Peer reviewed; Journal article, 2020)Resonant ultrasound spectroscopy has been used to characterise strain coupling and relaxation behavior associated with magnetic/magnetoelectric phase transitions in GdMnO3, TbMnO3 and TbMn0.98Fe0.02O3 through their influence ... -
Strain-path change induced transients in flow stress, work hardening and r-values in aluminum
(Journal article, 2015)Commercially pure aluminum with random texture was prestrained either by rolling or by uniaxial compression, and then tested in uniaxial tension to study the transients in flow stress, work hardening and r-value induced ... -
Strain-Path Changes in Brass (Cu-20Zn)
(Master thesis, 2017)Metals are often exposed to multi-path loading in the forming process. Plastic deformed in more than one direction can have significant effects on microstructural evolution and mechanical behaviour. These mechanisms and ... -
Strain-phonon coupling in (111)-oriented perovskite oxides
(Journal article; Peer reviewed, 2017)Strain-phonon coupling, in terms of the shift in phonon frequencies under biaxial strain, is studied by density functional theory calculations for 20 perovskite oxides strained in their (111) and (001) planes. While the ... -
Strategies for the analysis of the elemental metal fraction of Ir and Ru oxides via XRD, XANES, and EXAFS
(Peer reviewed; Journal article, 2019)Iridium and ruthenium oxide are active electrocatalysts for oxygen evolution. The relation between preparation method, structure, and behavior of mixed oxides of iridium and ruthenium are of interest in order to obtain ...